package httpapi_test

import (
	"bytes"
	"database/sql"
	"encoding/json"
	"fmt"
	"io"
	"mime/multipart"
	"net/http"
	"os"
	"path/filepath"
	"strings"
	"testing"
	"time"

	"git.yeij.top/AskaEth/Scoreboard/server/internal/auth"
	"git.yeij.top/AskaEth/Scoreboard/server/internal/dto"
	"git.yeij.top/AskaEth/Scoreboard/server/internal/httpapi"
)

// importHeader 与 ImportSection 模板 / 服务端 importColumns 保持一致。
const importHeader = "event_code,category,team_code,athlete_name,id_card,gender,age,bib,seed,status,member_names"

// importHeaderNoAge 是升级前的 10 列表头，用来验证缺 age 列不报错也不误报冲突。
const importHeaderNoAge = "event_code,category,team_code,athlete_name,id_card,gender,bib,seed,status,member_names"

// postImport 以 multipart 上传报名表；decisions 非空时作为 resolve 接口的 decisions 字段。
func (e *testEnv) postImport(t *testing.T, client *http.Client, path, content, decisions string) (int, envelope) {
	t.Helper()

	var buf bytes.Buffer
	mw := multipart.NewWriter(&buf)
	fw, err := mw.CreateFormFile("file", "entries.csv")
	if err != nil {
		t.Fatalf("构造 multipart: %v", err)
	}
	if _, err := fw.Write([]byte(content)); err != nil {
		t.Fatalf("写入报名表: %v", err)
	}
	if decisions != "" {
		if err := mw.WriteField("decisions", decisions); err != nil {
			t.Fatalf("写入 decisions: %v", err)
		}
	}
	if err := mw.Close(); err != nil {
		t.Fatalf("关闭 multipart: %v", err)
	}

	req, err := http.NewRequest(http.MethodPost, e.server.URL+path, &buf)
	if err != nil {
		t.Fatalf("构造请求: %v", err)
	}
	req.Header.Set("Content-Type", mw.FormDataContentType())
	req.Header.Set("X-CSRF-Token", e.csrfToken(client))

	resp, err := client.Do(req)
	if err != nil {
		t.Fatalf("上传报名表: %v", err)
	}
	defer func() { _ = resp.Body.Close() }()

	var env envelope
	raw, _ := io.ReadAll(resp.Body)
	if len(bytes.TrimSpace(raw)) > 0 {
		if err := json.Unmarshal(raw, &env); err != nil {
			t.Fatalf("解析响应: %v (%s)", err, raw)
		}
	}
	return resp.StatusCode, env
}

// recorderWithSeed 建好种子数据并返回已登录的 recorder 客户端。
func recorderWithSeed(t *testing.T) (*testEnv, seedIDs, *http.Client) {
	t.Helper()
	env := newTestEnv(t)
	ids := env.seed(t)
	env.createUser("recorder", "recorder-pass", "recorder")
	client, _ := env.client()
	env.login(client, "recorder", "recorder-pass")
	return env, ids, client
}

// 登录审计必须落在真实用户上：请求 ctx 里仍是 guest，靠 AuditEntry.ActorID 补（P1-13）。
func TestLoginAuditRecordsUserID(t *testing.T) {
	env := newTestEnv(t)
	userID := env.createUser("recorder", "recorder-pass", "recorder")
	client, _ := env.client()
	env.login(client, "recorder", "recorder-pass")

	var auditUser sql.NullInt64
	if err := env.ev.QueryRow(
		`SELECT user_id FROM audit_logs WHERE action = 'auth.login' ORDER BY id DESC LIMIT 1`).Scan(&auditUser); err != nil {
		t.Fatalf("查询登录审计: %v", err)
	}
	if !auditUser.Valid || auditUser.Int64 != userID {
		t.Fatalf("登录审计 user_id 应为 %d，得到 %+v", userID, auditUser)
	}

	// 按 userId 过滤必须能查到这条登录记录。
	env.createUser("admin", "admin-pass", "admin")
	adminClient, _ := env.client()
	env.login(adminClient, "admin", "admin-pass")
	_, env2 := env.do(adminClient, http.MethodGet, fmt.Sprintf("/api/audit-logs?userId=%d", userID), nil, false)
	page := decodeData[map[string]any](t, env2)
	items, _ := page["items"].([]any)
	found := false
	for _, raw := range items {
		item, ok := raw.(map[string]any)
		if !ok {
			continue
		}
		if item["action"] == "auth.login" && item["userId"] == float64(userID) {
			found = true
		}
	}
	if !found {
		t.Fatalf("按 userId 过滤应能查到登录审计，得到 %+v", items)
	}
}

// 跨站登录（login CSRF）必须被同源校验挡住（P2-6）。
func TestLoginRejectsCrossOrigin(t *testing.T) {
	env := newTestEnv(t)
	env.createUser("recorder", "recorder-pass", "recorder")
	client, _ := env.client()

	body := map[string]any{"username": "recorder", "password": "recorder-pass"}
	status, env2 := env.doH(client, http.MethodPost, "/api/auth/login", body, false,
		map[string]string{"Origin": "http://evil.example"})
	if status != http.StatusForbidden || env2.Error == nil || env2.Error.Code != "FORBIDDEN" {
		t.Fatalf("跨站登录应 403 FORBIDDEN，得到 %d %+v", status, env2.Error)
	}

	// 同源（Origin 与 Host 一致）仍可登录。
	status, env2 = env.doH(client, http.MethodPost, "/api/auth/login", body, false,
		map[string]string{"Origin": env.server.URL})
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("同源登录应 200，得到 %d %+v", status, env2.Error)
	}
}

// 超过 bcrypt 72 字节上限的新密码必须 400，而不是被静默截断（P2-6）。
func TestChangePasswordRejectsTooLong(t *testing.T) {
	env := newTestEnv(t)
	env.createUser("recorder", "recorder-pass", "recorder")
	client, _ := env.client()
	env.login(client, "recorder", "recorder-pass")

	tooLong := strings.Repeat("a", auth.MaxPasswordBytes+1)
	status, env2 := env.do(client, http.MethodPost, "/api/auth/password", map[string]any{
		"currentPassword": "recorder-pass",
		"newPassword":     tooLong,
	}, true)
	if status != http.StatusBadRequest {
		t.Fatalf("超长新密码应 400，得到 %d %+v", status, env2.Error)
	}
}

// 导入遇到新证件号 → 新建人员（name/gender/id_card/team）并建报名。
func TestImportCreatesAthleteWithIDCard(t *testing.T) {
	env, ids, client := recorderWithSeed(t)

	body := importHeader + "\nM100,男子,A,张三,110101199001011234,男,,,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["created"] != float64(1) || result["skipped"] != float64(0) {
		t.Fatalf("应新建 1 条报名且无跳过: %+v", result)
	}
	if conflicts, _ := result["conflicts"].([]any); len(conflicts) != 0 {
		t.Fatalf("不应有冲突: %+v", conflicts)
	}

	var (
		name, gender string
		teamID       int64
	)
	if err := env.ev.QueryRow(
		`SELECT name, gender, team_id FROM athletes WHERE id_card = ?`, "110101199001011234").
		Scan(&name, &gender, &teamID); err != nil {
		t.Fatalf("查询新建人员: %v", err)
	}
	if name != "张三" || gender != "男" || teamID != ids.teamA {
		t.Fatalf("新建人员字段不对: name=%s gender=%s team=%d", name, gender, teamID)
	}

	var entries int
	if err := env.ev.QueryRow(
		`SELECT COUNT(*) FROM entries WHERE event_id = ? AND athlete_id = (SELECT id FROM athletes WHERE id_card = ?)`,
		ids.event, "110101199001011234").Scan(&entries); err != nil {
		t.Fatalf("统计报名: %v", err)
	}
	if entries != 1 {
		t.Fatalf("应建 1 条报名，得到 %d", entries)
	}
}

// 姓名 + 单位命中且库中证件号为空 → 回填证件号，不新建人员。
func TestImportBackfillsIDCardForExistingAthlete(t *testing.T) {
	env, ids, client := recorderWithSeed(t)

	body := importHeader + "\nM100,男子,A,张伟,110101199001011234,男,,,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["updated"] != float64(1) || result["created"] != float64(0) {
		t.Fatalf("回填应更新已有报名: %+v", result)
	}
	if conflicts, _ := result["conflicts"].([]any); len(conflicts) != 0 {
		t.Fatalf("回填不算冲突: %+v", conflicts)
	}

	var idCard sql.NullString
	if err := env.ev.QueryRow(`SELECT id_card FROM athletes WHERE id = ?`, ids.athleteA).Scan(&idCard); err != nil {
		t.Fatalf("查询人员证件号: %v", err)
	}
	if !idCard.Valid || idCard.String != "110101199001011234" {
		t.Fatalf("应回填证件号，得到 %+v", idCard)
	}

	var athletes int
	if err := env.ev.QueryRow(`SELECT COUNT(*) FROM athletes`).Scan(&athletes); err != nil {
		t.Fatalf("统计人员: %v", err)
	}
	if athletes != 2 {
		t.Fatalf("回填不应新建人员，得到 %d 个", athletes)
	}
}

// 号码布命中但单位不一致 → 记为冲突，本轮不落库（人员与报名都不动）。
func TestImportCollectsConflictWithoutWriting(t *testing.T) {
	env, ids, client := recorderWithSeed(t)
	env.exec(t, `UPDATE athletes SET id_card = '110101199001011234', bib = 'A100' WHERE id = ?`, ids.athleteA)

	body := importHeader + "\nM100,男子,B,张伟,110101199001011234,男,,A100,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["created"] != float64(0) || result["updated"] != float64(0) || result["skipped"] != float64(0) {
		t.Fatalf("冲突行不应计入新增/更新/跳过: %+v", result)
	}

	conflicts, _ := result["conflicts"].([]any)
	if len(conflicts) != 1 {
		t.Fatalf("应收集 1 条冲突，得到 %+v", conflicts)
	}
	conflict := conflicts[0].(map[string]any)
	if conflict["row"] != float64(2) || conflict["idCard"] != "110101199001011234" ||
		conflict["athleteId"] != float64(ids.athleteA) {
		t.Fatalf("冲突定位信息不对: %+v", conflict)
	}
	changed, _ := conflict["changedFields"].([]any)
	if len(changed) != 1 || changed[0] != "teamCode" {
		t.Fatalf("应只有 teamCode 变化，得到 %+v", changed)
	}
	existing := conflict["existing"].(map[string]any)
	if existing["name"] != "张伟" || existing["teamCode"] != "A" || existing["gender"] != "男" {
		t.Fatalf("existing 快照不对: %+v", existing)
	}
	incoming := conflict["incoming"].(map[string]any)
	if incoming["name"] != "张伟" || incoming["teamCode"] != "B" {
		t.Fatalf("incoming 快照不对: %+v", incoming)
	}

	var teamID int64
	if err := env.ev.QueryRow(`SELECT team_id FROM athletes WHERE id = ?`, ids.athleteA).Scan(&teamID); err != nil {
		t.Fatalf("查询人员单位: %v", err)
	}
	if teamID != ids.teamA {
		t.Fatalf("冲突不应改人员单位，得到 %d", teamID)
	}
	var entries int
	if err := env.ev.QueryRow(
		`SELECT COUNT(*) FROM entries WHERE athlete_id = ? AND team_id = ?`, ids.athleteA, ids.teamB).Scan(&entries); err != nil {
		t.Fatalf("统计报名: %v", err)
	}
	if entries != 0 {
		t.Fatalf("冲突行的报名不应落库，得到 %d 条", entries)
	}
}

// 同一文件里证件号重复出现不再报错：证件号是可选档案信息，不参与匹配也不拦截。
func TestImportAcceptsDuplicateIDCardInFile(t *testing.T) {
	env, _, client := recorderWithSeed(t)

	body := importHeader + "\n" +
		"M100,男子,A,张三,110101199001011234,男,,,,registered,\n" +
		"M100,男子,A,张三,110101199001011234,男,,,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["skipped"] != float64(0) {
		t.Fatalf("同表重复证件号不应再拦截: %+v", result)
	}
	if errs, _ := result["errors"].([]any); len(errs) != 0 {
		t.Fatalf("不应有行级报错，得到 %+v", errs)
	}
	if result["created"] != float64(1) || result["updated"] != float64(1) {
		t.Fatalf("首行新建、次行按姓名+单位命中同一人并更新报名: %+v", result)
	}

	var athletes int
	if err := env.ev.QueryRow(`SELECT COUNT(*) FROM athletes WHERE id_card = ?`, "110101199001011234").Scan(&athletes); err != nil {
		t.Fatalf("统计人员: %v", err)
	}
	if athletes != 1 {
		t.Fatalf("同一个人只应建 1 个人员，得到 %d", athletes)
	}
}

// 新人带的证件号已被库里另一个人占用 → 明确的中文行级错误，不静默改库、不静默跳过。
func TestImportRejectsIDCardTakenByAnotherPerson(t *testing.T) {
	env, ids, client := recorderWithSeed(t)
	env.exec(t, `UPDATE athletes SET id_card = '110101199001011234', bib = 'A100' WHERE id = ?`, ids.athleteA)

	// 另一个人（李四 / 号码布 B200）拿着已被张伟占用的证件号来建档。
	body := importHeader + "\nM100,男子,B,李四,110101199001011234,男,,B200,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200（行级报错），得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["created"] != float64(0) || result["skipped"] != float64(1) {
		t.Fatalf("撞号的证件号应跳过该行: %+v", result)
	}
	errs, _ := result["errors"].([]any)
	if len(errs) != 1 {
		t.Fatalf("应报 1 条行级错误，得到 %+v", errs)
	}
	want := "第 2 行：证件号 110101199001011234 已被另一个人占用（姓名 张伟，号码布 A100）"
	if errs[0] != want {
		t.Fatalf("错误文案不对:\n 得到 %q\n 期望 %q", errs[0], want)
	}

	// 库里的张伟一行没动，也没有多出一个人。
	var (
		name  string
		bib   string
		count int
	)
	if err := env.ev.QueryRow(`SELECT name, bib FROM athletes WHERE id = ?`, ids.athleteA).Scan(&name, &bib); err != nil {
		t.Fatalf("查询人员: %v", err)
	}
	if name != "张伟" || bib != "A100" {
		t.Fatalf("撞号不应改动库里已有人员，得到 name=%s bib=%s", name, bib)
	}
	if err := env.ev.QueryRow(`SELECT COUNT(*) FROM athletes`).Scan(&count); err != nil {
		t.Fatalf("统计人员: %v", err)
	}
	if count != 2 {
		t.Fatalf("撞号不应新建人员，得到 %d 个", count)
	}
}

// 号码布不同 → 按「同名的另一个人」新建档案，并在 sameNameNewPersons 里单独报告，不进冲突面板。
func TestImportSameNameDifferentBibCreatesSecondPerson(t *testing.T) {
	env, ids, client := recorderWithSeed(t)
	env.exec(t, `UPDATE athletes SET bib = '1001' WHERE id = ?`, ids.athleteA)

	body := importHeader + "\nM100,男子,A,张伟,,男,,2001,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["created"] != float64(1) || result["skipped"] != float64(0) {
		t.Fatalf("同名不同号码布应新建报名: %+v", result)
	}
	if conflicts, _ := result["conflicts"].([]any); len(conflicts) != 0 {
		t.Fatalf("同名不同号码布不进冲突面板: %+v", conflicts)
	}
	reported, _ := result["sameNameNewPersons"].([]any)
	if len(reported) != 1 {
		t.Fatalf("应报告 1 条同名新建，得到 %+v", reported)
	}
	item := reported[0].(map[string]any)
	if item["name"] != "张伟" || item["teamCode"] != "A" || item["newBib"] != "2001" || item["existingBib"] != "1001" {
		t.Fatalf("同名新建报告字段不对: %+v", item)
	}

	var athletes int
	if err := env.ev.QueryRow(`SELECT COUNT(*) FROM athletes WHERE name = '张伟' AND team_id = ?`, ids.teamA).Scan(&athletes); err != nil {
		t.Fatalf("统计人员: %v", err)
	}
	if athletes != 2 {
		t.Fatalf("应新建第二个人，得到 %d 个", athletes)
	}
	// 原档案的号码布保持不动，新档案拿表里的号码布。
	var oldBib string
	if err := env.ev.QueryRow(`SELECT bib FROM athletes WHERE id = ?`, ids.athleteA).Scan(&oldBib); err != nil {
		t.Fatalf("查询原人员: %v", err)
	}
	if oldBib != "1001" {
		t.Fatalf("原档案号码布不应被改，得到 %s", oldBib)
	}
}

// 姓名 + 单位命中多条候选：不能替用户挑人，进冲突面板等决策。
func TestImportAmbiguousNameTeamGoesToConflictPanel(t *testing.T) {
	env, ids, client := recorderWithSeed(t)
	// 同单位两个「张伟」，都没有号码布，表里来第三个候选信息 → 歧义。
	env.exec(t, `INSERT INTO athletes (name, gender, team_id, active) VALUES ('张伟', '男', ?, 1)`, ids.teamA)

	body := importHeader + "\nM100,男子,A,张伟,,男,,9001,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["created"] != float64(0) || result["skipped"] != float64(0) {
		t.Fatalf("歧义行不落库也不跳过: %+v", result)
	}
	conflicts, _ := result["conflicts"].([]any)
	if len(conflicts) != 1 {
		t.Fatalf("应收集 1 条冲突，得到 %+v", conflicts)
	}
	if conflicts[0].(map[string]any)["athleteId"] != float64(ids.athleteA) {
		t.Fatalf("歧义冲突应以第一条候选为代表: %+v", conflicts[0])
	}
}

// 有 athlete_name 的行必须给 id_card 或 bib，两个都缺才报错。
func TestImportRequiresIDCardOrBibWhenNameGiven(t *testing.T) {
	env, _, client := recorderWithSeed(t)

	body := importHeader + "\nM100,男子,A,张三,,男,,,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["created"] != float64(0) || result["skipped"] != float64(1) {
		t.Fatalf("缺证件号与号码布应跳过: %+v", result)
	}
	errs, _ := result["errors"].([]any)
	if len(errs) != 1 || !strings.Contains(errs[0].(string), "id_card") {
		t.Fatalf("应报缺少 id_card 或 bib，得到 %+v", errs)
	}

	var athletes int
	if err := env.ev.QueryRow(`SELECT COUNT(*) FROM athletes`).Scan(&athletes); err != nil {
		t.Fatalf("统计人员: %v", err)
	}
	if athletes != 2 {
		t.Fatalf("该行不应建人员，得到 %d 个", athletes)
	}
}

// id_card / gender / age 是可选列：表头缺失不报错（团体行不涉及人员）。
func TestImportToleratesMissingOptionalColumns(t *testing.T) {
	env, _, client := recorderWithSeed(t)

	body := "event_code,category,team_code,athlete_name,bib,seed,status,member_names\n" +
		"M100,男子,A,,,,,registered,张三/李四\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("缺可选列应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["created"] != float64(1) || result["skipped"] != float64(0) {
		t.Fatalf("团体行应正常导入: %+v", result)
	}
}

// keep-existing：保留库中人员字段，报名跟随库里已有的单位。
func TestImportResolveKeepExisting(t *testing.T) {
	env, ids, client := recorderWithSeed(t)
	env.exec(t, `UPDATE athletes SET id_card = '110101199001011234', bib = 'A100' WHERE id = ?`, ids.athleteA)

	body := importHeader + "\nM100,男子,B,张伟,110101199001011234,男,,A100,,registered,\n"

	// 未给决策时，冲突原样返回。
	status, env2 := env.postImport(t, client, "/api/entries/import/resolve", body, "[]")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("决策接口应 200，得到 %d %+v", status, env2.Error)
	}
	if conflicts, _ := decodeData[map[string]any](t, env2)["conflicts"].([]any); len(conflicts) != 1 {
		t.Fatalf("未决策的冲突应继续返回: %+v", conflicts)
	}

	decisions := `[{"idCard":"110101199001011234","action":"keep-existing"}]`
	status, env2 = env.postImport(t, client, "/api/entries/import/resolve", body, decisions)
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("决策应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["updated"] != float64(1) || result["created"] != float64(0) {
		t.Fatalf("keep-existing 应更新库里已有报名: %+v", result)
	}
	if conflicts, _ := result["conflicts"].([]any); len(conflicts) != 0 {
		t.Fatalf("已决策的冲突不应再返回: %+v", conflicts)
	}

	var teamID int64
	if err := env.ev.QueryRow(`SELECT team_id FROM athletes WHERE id = ?`, ids.athleteA).Scan(&teamID); err != nil {
		t.Fatalf("查询人员单位: %v", err)
	}
	if teamID != ids.teamA {
		t.Fatalf("keep-existing 应保留库中单位，得到 %d", teamID)
	}
	var entries int
	if err := env.ev.QueryRow(
		`SELECT COUNT(*) FROM entries WHERE athlete_id = ? AND team_id = ?`, ids.athleteA, ids.teamB).Scan(&entries); err != nil {
		t.Fatalf("统计报名: %v", err)
	}
	if entries != 0 {
		t.Fatalf("keep-existing 不应在表里的单位下建报名，得到 %d 条", entries)
	}

	var audit int
	if err := env.ev.QueryRow(
		`SELECT COUNT(*) FROM audit_logs WHERE action = 'entries.import.resolve'`).Scan(&audit); err != nil {
		t.Fatalf("统计审计: %v", err)
	}
	if audit == 0 {
		t.Fatalf("决策应写审计")
	}
}

// keep-new：用表里的字段更新人员，再按表里的单位建报名。
func TestImportResolveKeepNew(t *testing.T) {
	env, ids, client := recorderWithSeed(t)
	env.exec(t, `UPDATE athletes SET id_card = '110101199001011234', bib = 'A100' WHERE id = ?`, ids.athleteA)

	body := importHeader + "\nM100,男子,B,张伟,110101199001011234,男,,A100,,registered,\n"
	decisions := `[{"idCard":"110101199001011234","action":"keep-new"}]`
	status, env2 := env.postImport(t, client, "/api/entries/import/resolve", body, decisions)
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("决策应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["created"] != float64(1) || result["updated"] != float64(0) {
		t.Fatalf("keep-new 应在表里的单位下新建报名: %+v", result)
	}
	if conflicts, _ := result["conflicts"].([]any); len(conflicts) != 0 {
		t.Fatalf("已决策的冲突不应再返回: %+v", conflicts)
	}

	var teamID int64
	if err := env.ev.QueryRow(`SELECT team_id FROM athletes WHERE id = ?`, ids.athleteA).Scan(&teamID); err != nil {
		t.Fatalf("查询人员单位: %v", err)
	}
	if teamID != ids.teamB {
		t.Fatalf("keep-new 应用表里的单位更新人员，得到 %d", teamID)
	}
	var entries int
	if err := env.ev.QueryRow(
		`SELECT COUNT(*) FROM entries WHERE athlete_id = ? AND team_id = ?`, ids.athleteA, ids.teamB).Scan(&entries); err != nil {
		t.Fatalf("统计报名: %v", err)
	}
	if entries != 1 {
		t.Fatalf("keep-new 应在表里的单位下建 1 条报名，得到 %d 条", entries)
	}
}

// decisions 非法时返回 400。
func TestImportResolveRejectsBadDecisions(t *testing.T) {
	env, _, client := recorderWithSeed(t)
	body := importHeader + "\nM100,男子,A,张三,110101199001011234,男,,,,registered,\n"

	for _, decisions := range []string{"不是 JSON", `[{"idCard":"1","action":"keep-both"}]`} {
		status, env2 := env.postImport(t, client, "/api/entries/import/resolve", body, decisions)
		if status != http.StatusBadRequest || env2.Error == nil {
			t.Fatalf("非法 decisions 应 400，得到 %d %+v", status, env2.Error)
		}
	}
}

// 只给号码布（没有证件号）也能新建人员，人员与报名都写入号码布。
func TestImportCreatesAthleteWithBibOnly(t *testing.T) {
	env, _, client := recorderWithSeed(t)

	body := importHeader + "\nM100,男子,A,赵六,,男,,B1001,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["created"] != float64(1) || result["skipped"] != float64(0) {
		t.Fatalf("仅给号码布应新建 1 条报名: %+v", result)
	}

	var (
		idCard sql.NullString
		bib    string
	)
	if err := env.ev.QueryRow(`SELECT id_card, bib FROM athletes WHERE name = '赵六'`).Scan(&idCard, &bib); err != nil {
		t.Fatalf("查询新建人员: %v", err)
	}
	if idCard.Valid || bib != "B1001" {
		t.Fatalf("人员应只有号码布: id_card=%+v bib=%s", idCard, bib)
	}

	var entryBib sql.NullString
	if err := env.ev.QueryRow(
		`SELECT bib FROM entries WHERE athlete_id = (SELECT id FROM athletes WHERE bib = 'B1001')`).Scan(&entryBib); err != nil {
		t.Fatalf("查询报名号码布: %v", err)
	}
	if !entryBib.Valid || entryBib.String != "B1001" {
		t.Fatalf("报名也应写号码布: %+v", entryBib)
	}
}

// 号码布精确命中已有人员 → 视为同一人，只更新报名。
func TestImportMatchesAthleteByBib(t *testing.T) {
	env, ids, client := recorderWithSeed(t)
	env.exec(t, `UPDATE athletes SET bib = 'A100' WHERE id = ?`, ids.athleteA)

	body := importHeader + "\nM100,男子,A,张伟,,男,,A100,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["updated"] != float64(1) || result["created"] != float64(0) {
		t.Fatalf("号码布命中应更新已有报名: %+v", result)
	}
	if conflicts, _ := result["conflicts"].([]any); len(conflicts) != 0 {
		t.Fatalf("号码布命中不算冲突: %+v", conflicts)
	}

	var athletes int
	if err := env.ev.QueryRow(`SELECT COUNT(*) FROM athletes`).Scan(&athletes); err != nil {
		t.Fatalf("统计人员: %v", err)
	}
	if athletes != 2 {
		t.Fatalf("号码布命中不应新建人员，得到 %d 个", athletes)
	}
}

// 姓名 + 单位命中且库中证件号为空 → 回填号码布，不新建人员。
func TestImportBackfillsBibForExistingAthlete(t *testing.T) {
	env, ids, client := recorderWithSeed(t)

	body := importHeader + "\nM100,男子,A,张伟,,男,,A100,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["updated"] != float64(1) || result["created"] != float64(0) {
		t.Fatalf("回填应更新已有报名: %+v", result)
	}
	if conflicts, _ := result["conflicts"].([]any); len(conflicts) != 0 {
		t.Fatalf("回填不算冲突: %+v", conflicts)
	}

	var bib sql.NullString
	if err := env.ev.QueryRow(`SELECT bib FROM athletes WHERE id = ?`, ids.athleteA).Scan(&bib); err != nil {
		t.Fatalf("查询人员号码布: %v", err)
	}
	if !bib.Valid || bib.String != "A100" {
		t.Fatalf("应回填号码布，得到 %+v", bib)
	}

	var athletes int
	if err := env.ev.QueryRow(`SELECT COUNT(*) FROM athletes`).Scan(&athletes); err != nil {
		t.Fatalf("统计人员: %v", err)
	}
	if athletes != 2 {
		t.Fatalf("回填不应新建人员，得到 %d 个", athletes)
	}
}

// 号码布命中时，表里多给的证件号也回填进库中为空的人员。
func TestImportBackfillsIDCardWhenMatchedByBib(t *testing.T) {
	env, ids, client := recorderWithSeed(t)
	env.exec(t, `UPDATE athletes SET bib = 'A100' WHERE id = ?`, ids.athleteA)

	body := importHeader + "\nM100,男子,A,张伟,110101199001011234,男,,A100,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["updated"] != float64(1) || result["created"] != float64(0) {
		t.Fatalf("号码布命中应更新已有报名: %+v", result)
	}

	var idCard sql.NullString
	if err := env.ev.QueryRow(`SELECT id_card FROM athletes WHERE id = ?`, ids.athleteA).Scan(&idCard); err != nil {
		t.Fatalf("查询人员证件号: %v", err)
	}
	if !idCard.Valid || idCard.String != "110101199001011234" {
		t.Fatalf("应回填证件号，得到 %+v", idCard)
	}

	var athletes int
	if err := env.ev.QueryRow(`SELECT COUNT(*) FROM athletes`).Scan(&athletes); err != nil {
		t.Fatalf("统计人员: %v", err)
	}
	if athletes != 2 {
		t.Fatalf("回填不应新建人员，得到 %d 个", athletes)
	}
}

// 同一文件里号码布重复出现 → 该行报错并跳过。
func TestImportRejectsDuplicateBibInFile(t *testing.T) {
	env, _, client := recorderWithSeed(t)

	body := importHeader + "\n" +
		"M100,男子,A,张三,,男,,B2001,,registered,\n" +
		"M100,男子,A,李四,,男,,B2001,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["created"] != float64(1) || result["skipped"] != float64(1) {
		t.Fatalf("首行应新建、次行应跳过: %+v", result)
	}
	errs, _ := result["errors"].([]any)
	if len(errs) != 1 || !strings.Contains(errs[0].(string), "号码布") {
		t.Fatalf("应报号码布重复，得到 %+v", errs)
	}

	var athletes int
	if err := env.ev.QueryRow(`SELECT COUNT(*) FROM athletes WHERE bib = 'B2001'`).Scan(&athletes); err != nil {
		t.Fatalf("统计人员: %v", err)
	}
	if athletes != 1 {
		t.Fatalf("重复号码布只应建 1 个人员，得到 %d", athletes)
	}
}

// 同名 + 号码布不同本应按「同名的另一个人」新建，但表里的证件号已被库里那个人占用时，
// 唯一索引的底线更高：明确报出占用者，既不静默改库也不静默跳过。
func TestImportSameNameDifferentBibButTakenIDCard(t *testing.T) {
	env, ids, client := recorderWithSeed(t)
	env.exec(t, `UPDATE athletes SET id_card = '110101199001011234', bib = 'A100' WHERE id = ?`, ids.athleteA)

	body := importHeader + "\nM100,男子,A,张伟,110101199001011234,男,,A200,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200（行级报错），得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["skipped"] != float64(1) || result["created"] != float64(0) {
		t.Fatalf("撞号应跳过该行: %+v", result)
	}
	errs, _ := result["errors"].([]any)
	want := "第 2 行：证件号 110101199001011234 已被另一个人占用（姓名 张伟，号码布 A100）"
	if len(errs) != 1 || errs[0] != want {
		t.Fatalf("错误文案不对:\n 得到 %+v\n 期望 %q", errs, want)
	}
	if reported, _ := result["sameNameNewPersons"].([]any); len(reported) != 0 {
		t.Fatalf("新建被证件号唯一索引挡下时不应报告成同名新建: %+v", reported)
	}

	var athletes int
	if err := env.ev.QueryRow(`SELECT COUNT(*) FROM athletes`).Scan(&athletes); err != nil {
		t.Fatalf("统计人员: %v", err)
	}
	if athletes != 2 {
		t.Fatalf("不应新建人员，得到 %d 个", athletes)
	}
}

// 号码布命中但姓名与库中不一致 → 冲突；决策按号码布为键，keep-new 用表里字段覆盖。
func TestImportResolveConflictByBib(t *testing.T) {
	env, ids, client := recorderWithSeed(t)
	env.exec(t, `UPDATE athletes SET bib = 'A100' WHERE id = ?`, ids.athleteA)

	body := importHeader + "\nM100,男子,A,张伟伟,,男,,A100,,registered,\n"
	decisions := `[{"bib":"A100","action":"keep-new"}]`
	status, env2 := env.postImport(t, client, "/api/entries/import/resolve", body, decisions)
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("决策应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["updated"] != float64(1) || result["created"] != float64(0) {
		t.Fatalf("keep-new 应更新已有报名: %+v", result)
	}
	if conflicts, _ := result["conflicts"].([]any); len(conflicts) != 0 {
		t.Fatalf("已决策的冲突不应再返回: %+v", conflicts)
	}

	var name string
	if err := env.ev.QueryRow(`SELECT name FROM athletes WHERE id = ?`, ids.athleteA).Scan(&name); err != nil {
		t.Fatalf("查询人员姓名: %v", err)
	}
	if name != "张伟伟" {
		t.Fatalf("keep-new 应用表里的姓名覆盖人员，得到 %s", name)
	}
}

// 表里的 age 列写入新建人员。
func TestImportCreatesAthleteWithAge(t *testing.T) {
	env, _, client := recorderWithSeed(t)

	body := importHeader + "\nM100,男子,A,张三,110101199001011234,男,23,,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["created"] != float64(1) || result["skipped"] != float64(0) {
		t.Fatalf("应新建 1 条报名且无跳过: %+v", result)
	}

	var age sql.NullInt64
	if err := env.ev.QueryRow(`SELECT age FROM athletes WHERE id_card = ?`, "110101199001011234").Scan(&age); err != nil {
		t.Fatalf("查询新建人员: %v", err)
	}
	if !age.Valid || age.Int64 != 23 {
		t.Fatalf("应写入年龄 23，得到 %+v", age)
	}
}

// age 非整数或超出 0-120 → 该行报错并跳过，人员与报名都不落库。
func TestImportRejectsInvalidAge(t *testing.T) {
	env, _, client := recorderWithSeed(t)

	for _, age := range []string{"abc", "-1", "121", "30.5"} {
		body := importHeader + "\nM100,男子,A,张三,110101199001011234,男," + age + ",,,registered,\n"
		status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
		if status != http.StatusOK || !env2.OK {
			t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
		}
		result := decodeData[map[string]any](t, env2)
		if result["created"] != float64(0) || result["skipped"] != float64(1) {
			t.Fatalf("age=%s 应跳过该行: %+v", age, result)
		}
		errs, _ := result["errors"].([]any)
		if len(errs) != 1 || !strings.Contains(errs[0].(string), "age") {
			t.Fatalf("age=%s 应报年龄非法，得到 %+v", age, errs)
		}
	}

	var athletes int
	if err := env.ev.QueryRow(`SELECT COUNT(*) FROM athletes`).Scan(&athletes); err != nil {
		t.Fatalf("统计人员: %v", err)
	}
	if athletes != 2 {
		t.Fatalf("非法行不应建人员，得到 %d 个", athletes)
	}
}

// 姓名 + 单位命中且库中证件号为空 → 一并回填年龄，不新建人员。
func TestImportBackfillsAgeForExistingAthlete(t *testing.T) {
	env, ids, client := recorderWithSeed(t)

	body := importHeader + "\nM100,男子,A,张伟,110101199001011234,男,35,,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["updated"] != float64(1) || result["created"] != float64(0) {
		t.Fatalf("回填应更新已有报名: %+v", result)
	}
	if conflicts, _ := result["conflicts"].([]any); len(conflicts) != 0 {
		t.Fatalf("回填不算冲突: %+v", conflicts)
	}

	var age sql.NullInt64
	if err := env.ev.QueryRow(`SELECT age FROM athletes WHERE id = ?`, ids.athleteA).Scan(&age); err != nil {
		t.Fatalf("查询人员年龄: %v", err)
	}
	if !age.Valid || age.Int64 != 35 {
		t.Fatalf("应回填年龄 35，得到 %+v", age)
	}

	// 回填后年龄两边相同，再导入一次不算冲突。
	status, env2 = env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("二次导入应 200，得到 %d %+v", status, env2.Error)
	}
	result = decodeData[map[string]any](t, env2)
	if conflicts, _ := result["conflicts"].([]any); len(conflicts) != 0 {
		t.Fatalf("年龄相同不算冲突: %+v", conflicts)
	}
	if result["updated"] != float64(1) {
		t.Fatalf("二次导入应更新已有报名: %+v", result)
	}
}

// 年龄两边都有且不同 → 冲突，快照与差异字段都带 age，本轮不落库。
func TestImportConflictIncludesAgeDiff(t *testing.T) {
	env, ids, client := recorderWithSeed(t)
	env.exec(t, `UPDATE athletes SET id_card = '110101199001011234', age = 30 WHERE id = ?`, ids.athleteA)

	body := importHeader + "\nM100,男子,A,张伟,110101199001011234,男,26,,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	conflicts, _ := result["conflicts"].([]any)
	if len(conflicts) != 1 {
		t.Fatalf("年龄不同应收集 1 条冲突，得到 %+v", conflicts)
	}
	conflict := conflicts[0].(map[string]any)
	changed, _ := conflict["changedFields"].([]any)
	if len(changed) != 1 || changed[0] != "age" {
		t.Fatalf("应只有 age 变化，得到 %+v", changed)
	}
	if existing := conflict["existing"].(map[string]any); existing["age"] != float64(30) {
		t.Fatalf("existing 快照应带库中年龄: %+v", existing)
	}
	if incoming := conflict["incoming"].(map[string]any); incoming["age"] != float64(26) {
		t.Fatalf("incoming 快照应带表里年龄: %+v", incoming)
	}

	var age sql.NullInt64
	if err := env.ev.QueryRow(`SELECT age FROM athletes WHERE id = ?`, ids.athleteA).Scan(&age); err != nil {
		t.Fatalf("查询人员年龄: %v", err)
	}
	if !age.Valid || age.Int64 != 30 {
		t.Fatalf("冲突不应改库中年龄，得到 %+v", age)
	}
}

// 升级前的 10 列表头没有 age 列：不报错，也不能把已有年龄的人误报成冲突。
func TestImportWithoutAgeColumnKeepsExistingAge(t *testing.T) {
	env, ids, client := recorderWithSeed(t)
	env.exec(t, `UPDATE athletes SET id_card = '110101199001011234', age = 30 WHERE id = ?`, ids.athleteA)

	body := importHeaderNoAge + "\nM100,男子,A,张伟,110101199001011234,男,,,registered,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("缺 age 列应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if conflicts, _ := result["conflicts"].([]any); len(conflicts) != 0 {
		t.Fatalf("缺 age 列不该误报冲突: %+v", conflicts)
	}
	if result["updated"] != float64(1) {
		t.Fatalf("缺 age 列应正常更新: %+v", result)
	}

	var age sql.NullInt64
	if err := env.ev.QueryRow(`SELECT age FROM athletes WHERE id = ?`, ids.athleteA).Scan(&age); err != nil {
		t.Fatalf("查询人员年龄: %v", err)
	}
	if !age.Valid || age.Int64 != 30 {
		t.Fatalf("缺 age 列不该清掉库中年龄，得到 %+v", age)
	}
}

// keep-new 只在表里给了年龄时才覆盖，缺列/空值不能清掉库中已有的年龄。
func TestImportResolveKeepNewAgeOnlyOverwritesWhenGiven(t *testing.T) {
	env, ids, client := recorderWithSeed(t)
	env.exec(t, `UPDATE athletes SET id_card = '110101199001011234', age = 30 WHERE id = ?`, ids.athleteA)

	// 表里 age 为空：keep-new 覆盖单位与姓名，年龄保持库里的值。
	body := importHeader + "\nM100,男子,B,张伟,110101199001011234,男,,,,registered,\n"
	decisions := `[{"idCard":"110101199001011234","action":"keep-new"}]`
	status, env2 := env.postImport(t, client, "/api/entries/import/resolve", body, decisions)
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("决策应 200，得到 %d %+v", status, env2.Error)
	}
	if conflicts, _ := decodeData[map[string]any](t, env2)["conflicts"].([]any); len(conflicts) != 0 {
		t.Fatalf("已决策的冲突不应再返回: %+v", conflicts)
	}

	var age sql.NullInt64
	if err := env.ev.QueryRow(`SELECT age FROM athletes WHERE id = ?`, ids.athleteA).Scan(&age); err != nil {
		t.Fatalf("查询人员年龄: %v", err)
	}
	if !age.Valid || age.Int64 != 30 {
		t.Fatalf("表里没给年龄时不该清掉库里年龄，得到 %+v", age)
	}

	// 表里给了 age：keep-new 覆盖成表里的值。
	body = importHeader + "\nM100,男子,A,张伟,110101199001011234,男,26,,,registered,\n"
	if status, env2 = env.postImport(t, client, "/api/entries/import/resolve", body, decisions); status != http.StatusOK || !env2.OK {
		t.Fatalf("决策应 200，得到 %d %+v", status, env2.Error)
	}
	if err := env.ev.QueryRow(`SELECT age FROM athletes WHERE id = ?`, ids.athleteA).Scan(&age); err != nil {
		t.Fatalf("查询人员年龄: %v", err)
	}
	if !age.Valid || age.Int64 != 26 {
		t.Fatalf("keep-new 应用表里的年龄覆盖，得到 %+v", age)
	}
}

// status 列归一：DNS / 退赛 / 空串 / Registered 都能正常入库，库里存的是四个合法值之一。
func TestImportNormalizesStatusColumn(t *testing.T) {
	env, _, client := recorderWithSeed(t)

	cases := []struct{ cell, want string }{
		{"DNS", "dns"},
		{"退赛", "scratched"},
		{"", "registered"},
		{"Registered", "registered"},
	}
	body := importHeader + "\n"
	for i, c := range cases {
		body += fmt.Sprintf("M100,男子,A,选手%d,11010119900101%04d,男,,,,%s,\n", i+1, i+1, c.cell)
	}
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["created"] != float64(len(cases)) || result["skipped"] != float64(0) {
		t.Fatalf("四种写法都应导入成功: %+v", result)
	}

	for i, c := range cases {
		idCard := fmt.Sprintf("11010119900101%04d", i+1)
		var got string
		if err := env.ev.QueryRow(`SELECT e.status FROM entries e JOIN athletes a ON a.id = e.athlete_id
		                            WHERE a.id_card = ?`, idCard).Scan(&got); err != nil {
			t.Fatalf("查询 status（%s）: %v", c.cell, err)
		}
		if got != c.want {
			t.Errorf("status=%q 应存成 %q，得到 %q", c.cell, c.want, got)
		}
	}
}

// status 填了认不出的值：该行跳过，错误消息要是中文可读的行级提示，不能是原始 SQLite 报错。
func TestImportRejectsUnknownStatus(t *testing.T) {
	env, _, client := recorderWithSeed(t)

	body := importHeader + "\nM100,男子,A,张三,110101199001011234,男,,,,已报到,\n"
	status, env2 := env.postImport(t, client, "/api/entries/import", body, "")
	if status != http.StatusOK || !env2.OK {
		t.Fatalf("导入应 200，得到 %d %+v", status, env2.Error)
	}
	result := decodeData[map[string]any](t, env2)
	if result["created"] != float64(0) || result["skipped"] != float64(1) {
		t.Fatalf("乱填 status 的行应跳过: %+v", result)
	}
	errs, _ := result["errors"].([]any)
	if len(errs) != 1 {
		t.Fatalf("应有 1 条行级错误，得到 %+v", errs)
	}
	msg, _ := errs[0].(string)
	for _, want := range []string{"第 2 行", "已报到", "registered / scratched / dq / dns"} {
		if !strings.Contains(msg, want) {
			t.Fatalf("错误消息应含 %q，得到 %q", want, msg)
		}
	}

	// 该行一个字段都不该落库：既不建人员，也不建报名。
	var entries int
	if err := env.ev.QueryRow(`SELECT COUNT(*) FROM entries e JOIN athletes a ON a.id = e.athlete_id
	                            WHERE a.id_card = ?`, "110101199001011234").Scan(&entries); err != nil {
		t.Fatalf("统计报名: %v", err)
	}
	if entries != 0 {
		t.Fatalf("认不出 status 的行不应落库，得到 %d 条报名", entries)
	}
}

// ---------- 图片上传与静态访问 ----------

// newUploadEnv 构造带赛事项目目录的测试环境，返回 uploads 目录的真实路径。
func newUploadEnv(t *testing.T) (*testEnv, string) {
	t.Helper()
	projectDir := filepath.Join(t.TempDir(), "event_projs", "test")
	env := newTestEnvWith(t, func(o *httpapi.Options) { o.ProjectDir = projectDir })
	return env, filepath.Join(projectDir, "uploads")
}

// pngContent 是占位 PNG：服务端只按扩展名白名单放行，不解码图片内容。
func pngContent() []byte {
	return append([]byte{0x89, 'P', 'N', 'G', '\r', '\n', 0x1a, '\n'}, []byte("fake-png-body")...)
}

// postUpload 以 multipart 字段 file 上传到 /api/uploads。
func (e *testEnv) postUpload(t *testing.T, client *http.Client, filename string, content []byte) (int, envelope) {
	t.Helper()

	var buf bytes.Buffer
	mw := multipart.NewWriter(&buf)
	fw, err := mw.CreateFormFile("file", filename)
	if err != nil {
		t.Fatalf("构造 multipart: %v", err)
	}
	if _, err := fw.Write(content); err != nil {
		t.Fatalf("写入上传内容: %v", err)
	}
	if err := mw.Close(); err != nil {
		t.Fatalf("关闭 multipart: %v", err)
	}

	req, err := http.NewRequest(http.MethodPost, e.server.URL+"/api/uploads", &buf)
	if err != nil {
		t.Fatalf("构造请求: %v", err)
	}
	req.Header.Set("Content-Type", mw.FormDataContentType())
	if token := e.csrfToken(client); token != "" {
		req.Header.Set("X-CSRF-Token", token)
	}
	resp, err := client.Do(req)
	if err != nil {
		t.Fatalf("上传图片: %v", err)
	}
	defer func() { _ = resp.Body.Close() }()

	var env envelope
	raw, _ := io.ReadAll(resp.Body)
	if len(bytes.TrimSpace(raw)) > 0 {
		if err := json.Unmarshal(raw, &env); err != nil {
			t.Fatalf("解析上传响应: %v (%s)", err, raw)
		}
	}
	return resp.StatusCode, env
}

type uploadResultBody struct {
	Path string `json:"path"`
	URL  string `json:"url"`
}

func uploadsDirEntries(t *testing.T, dir string) []string {
	t.Helper()
	entries, err := os.ReadDir(dir)
	if os.IsNotExist(err) {
		return nil
	}
	if err != nil {
		t.Fatalf("读取 uploads 目录: %v", err)
	}
	names := make([]string, 0, len(entries))
	for _, e := range entries {
		names = append(names, e.Name())
	}
	return names
}

// 上传的图片要真落盘到 <ProjectDir>/uploads，且匿名 <img> 能取到同样的内容（赛事包导出靠这个目录）。
func TestUploadImageThenServeAnonymously(t *testing.T) {
	env, uploadsDir := newUploadEnv(t)
	env.createUser("recorder", "recorder-pass", "recorder")
	client, _ := env.client()
	env.login(client, "recorder", "recorder-pass")

	content := pngContent()
	status, body := env.postUpload(t, client, "赛事会标.png", content)
	if status != http.StatusOK || !body.OK {
		t.Fatalf("上传 png 应 200，得到 %d %+v", status, body.Error)
	}
	result := decodeData[uploadResultBody](t, body)
	if result.Path != result.URL {
		t.Fatalf("path 与 url 应一致，得到 %q / %q", result.Path, result.URL)
	}
	if !strings.HasPrefix(result.Path, "/uploads/") || !strings.HasSuffix(result.Path, ".png") {
		t.Fatalf("返回路径应形如 /uploads/xxx.png，得到 %q", result.Path)
	}
	// 落盘名不能用客户端文件名，否则重名会互相覆盖、也会带出路径注入。
	if strings.Contains(result.Path, "赛事会标") {
		t.Fatalf("落盘名应为随机名，得到 %q", result.Path)
	}

	stored := filepath.Join(uploadsDir, filepath.Base(result.Path))
	got, err := os.ReadFile(stored)
	if err != nil {
		t.Fatalf("上传文件未落在 projectDir/uploads: %v", err)
	}
	if !bytes.Equal(got, content) {
		t.Fatalf("落盘内容与上传内容不一致: %q", got)
	}

	var audits int
	if err := env.ev.QueryRow(`SELECT COUNT(*) FROM audit_logs WHERE action = 'uploads.create'`).Scan(&audits); err != nil {
		t.Fatalf("查询上传审计: %v", err)
	}
	if audits != 1 {
		t.Fatalf("上传应写一条 uploads.create 审计，得到 %d", audits)
	}

	// 大屏与 <img> 不带会话：匿名 GET 必须 200。
	resp, err := http.Get(env.server.URL + result.Path)
	if err != nil {
		t.Fatalf("匿名取图: %v", err)
	}
	defer func() { _ = resp.Body.Close() }()
	if resp.StatusCode != http.StatusOK {
		t.Fatalf("匿名取图应 200，得到 %d", resp.StatusCode)
	}
	if ct := resp.Header.Get("Content-Type"); ct != "image/png" {
		t.Fatalf("Content-Type 应为 image/png，得到 %q", ct)
	}
	if cc := resp.Header.Get("Cache-Control"); !strings.Contains(cc, "max-age") {
		t.Fatalf("随机文件名应可长缓存，得到 Cache-Control %q", cc)
	}
	served, err := io.ReadAll(resp.Body)
	if err != nil {
		t.Fatalf("读取图片响应: %v", err)
	}
	if !bytes.Equal(served, content) {
		t.Fatalf("静态响应内容与上传内容不一致: %q", served)
	}
}

// 只收位图：SVG 可内嵌脚本，匿名同源访问等于存储型 XSS 入口。
func TestUploadRejectsUnsupportedImageType(t *testing.T) {
	env, uploadsDir := newUploadEnv(t)
	env.createUser("recorder", "recorder-pass", "recorder")
	client, _ := env.client()
	env.login(client, "recorder", "recorder-pass")

	cases := []struct {
		name    string
		content []byte
	}{
		{"logo.svg", []byte(`<svg xmlns="http://www.w3.org/2000/svg"><script>alert(1)</script></svg>`)},
		{"logo.txt", []byte("not an image")},
		{"logo.png.exe", []byte("not an image")},
	}
	for _, c := range cases {
		status, body := env.postUpload(t, client, c.name, c.content)
		if status != http.StatusBadRequest || body.OK {
			t.Fatalf("上传 %s 应 400，得到 %d %+v", c.name, status, body.Error)
		}
	}
	if names := uploadsDirEntries(t, uploadsDir); len(names) != 0 {
		t.Fatalf("被拒的上传不该落盘，实际有 %v", names)
	}
}

// 单文件上限 5 MiB：略超与远超都要 400，且不落盘。
func TestUploadRejectsOversizeImage(t *testing.T) {
	env, uploadsDir := newUploadEnv(t)
	env.createUser("recorder", "recorder-pass", "recorder")
	client, _ := env.client()
	env.login(client, "recorder", "recorder-pass")

	for _, size := range []int{5<<20 + 1, 8 << 20} {
		status, body := env.postUpload(t, client, "big.png", bytes.Repeat([]byte{'a'}, size))
		if status != http.StatusBadRequest || body.OK {
			t.Fatalf("%d 字节应 400，得到 %d %+v", size, status, body.Error)
		}
		if !strings.Contains(body.Error.Message, "5 MiB") {
			t.Fatalf("超限提示应说明上限，得到 %q", body.Error.Message)
		}
	}
	if names := uploadsDirEntries(t, uploadsDir); len(names) != 0 {
		t.Fatalf("超限上传不该落盘，实际有 %v", names)
	}
}

// 上传是写操作：未登录（guest）一律 401 AUTH_REQUIRED，与其它写接口口径一致。
func TestUploadRequiresRecorder(t *testing.T) {
	env, uploadsDir := newUploadEnv(t)
	client, _ := env.client()

	status, body := env.postUpload(t, client, "logo.png", pngContent())
	if status != http.StatusUnauthorized {
		t.Fatalf("未登录上传应 401，得到 %d %+v", status, body.Error)
	}
	if body.Error == nil || body.Error.Code != "AUTH_REQUIRED" {
		t.Fatalf("错误码应为 AUTH_REQUIRED，得到 %+v", body.Error)
	}
	if names := uploadsDirEntries(t, uploadsDir); len(names) != 0 {
		t.Fatalf("未登录上传不该落盘，实际有 %v", names)
	}
}

// 没配置赛事项目目录时没有落盘位置，明确报 503 而不是 panic。
func TestUploadWithoutProjectDir(t *testing.T) {
	env := newTestEnv(t)
	env.createUser("recorder", "recorder-pass", "recorder")
	client, _ := env.client()
	env.login(client, "recorder", "recorder-pass")

	status, body := env.postUpload(t, client, "logo.png", pngContent())
	if status != http.StatusServiceUnavailable {
		t.Fatalf("未配置 ProjectDir 应 503，得到 %d %+v", status, body.Error)
	}
}

// 静态访问只认「单层文件名 + 白名单扩展名」，任何穿越写法都不能读到 uploads 之外的文件。
func TestUploadStaticRejectsTraversal(t *testing.T) {
	env, uploadsDir := newUploadEnv(t)
	root := filepath.Dir(filepath.Dir(uploadsDir)) // projectDir 的上一级（event_projs）
	const secret = "top-secret-content"
	if err := os.MkdirAll(root, 0o755); err != nil {
		t.Fatalf("创建 uploads 之外的目录: %v", err)
	}
	if err := os.WriteFile(filepath.Join(root, "config.yaml"), []byte(secret), 0o644); err != nil {
		t.Fatalf("写 uploads 之外的文件: %v", err)
	}
	if err := os.WriteFile(filepath.Join(root, "..", "secret.txt"), []byte(secret), 0o644); err != nil {
		t.Fatalf("写 uploads 之外的文件: %v", err)
	}

	// 不跟随重定向：要看到服务端真正给出的状态码。
	client := &http.Client{
		CheckRedirect: func(*http.Request, []*http.Request) error { return http.ErrUseLastResponse },
	}
	paths := []string{
		"/uploads/..%2F..%2Fconfig.yaml",
		"/uploads/..%2F..%2F..%2Fsecret.txt",
		"/uploads/%2e%2e%2Fconfig.yaml",
		"/uploads/a/b.png",
		"/uploads/..%2Fconfig.yaml",
	}
	for _, path := range paths {
		resp, err := client.Get(env.server.URL + path)
		if err != nil {
			t.Fatalf("请求 %s: %v", path, err)
		}
		raw, _ := io.ReadAll(resp.Body)
		_ = resp.Body.Close()
		if resp.StatusCode != http.StatusNotFound && resp.StatusCode != http.StatusBadRequest {
			t.Fatalf("%s 应 404/400，得到 %d", path, resp.StatusCode)
		}
		if strings.Contains(string(raw), secret) {
			t.Fatalf("%s 读到了 uploads 之外的文件: %s", path, raw)
		}
	}
}

// 名字合法但文件不存在时返回 404，不能把目录列表或空图当成功。
func TestUploadStaticMissingFile(t *testing.T) {
	env, _ := newUploadEnv(t)
	resp, err := http.Get(env.server.URL + "/uploads/0123456789abcdef0123456789abcdef.png")
	if err != nil {
		t.Fatalf("请求不存在的图片: %v", err)
	}
	defer func() { _ = resp.Body.Close() }()
	if resp.StatusCode != http.StatusNotFound {
		t.Fatalf("不存在的图片应 404，得到 %d", resp.StatusCode)
	}
}

// 上传返回的路径要能直接写进赛事配置，且大屏匿名取图链路通（会标/背景的实际用法）。
func TestUploadedImagePathRoundTripsThroughSettings(t *testing.T) {
	env, _ := newUploadEnv(t)
	env.createUser("admin", "admin-pass", "admin")
	client, _ := env.client()
	env.login(client, "admin", "admin-pass")

	status, body := env.postUpload(t, client, "logo.png", pngContent())
	if status != http.StatusOK || !body.OK {
		t.Fatalf("上传应 200，得到 %d %+v", status, body.Error)
	}
	path := decodeData[uploadResultBody](t, body).Path

	status, body = env.do(client, http.MethodPut, "/api/settings", map[string]any{
		"event":   map[string]any{"logoPath": path},
		"display": map[string]any{"logo": path, "background": path},
	}, true)
	if status != http.StatusOK || !body.OK {
		t.Fatalf("把上传路径写进配置应 200，得到 %d %+v", status, body.Error)
	}

	status, body = env.do(client, http.MethodGet, "/api/settings", nil, false)
	if status != http.StatusOK || !body.OK {
		t.Fatalf("读取配置应 200，得到 %d %+v", status, body.Error)
	}
	settings := decodeData[dto.EventSettings](t, body)
	if settings.Event.LogoPath == nil || *settings.Event.LogoPath != path {
		t.Fatalf("event.logoPath 应保存上传路径 %q，得到 %+v", path, settings.Event.LogoPath)
	}
	if settings.Display.Logo == nil || *settings.Display.Logo != path {
		t.Fatalf("display.logo 应保存上传路径 %q，得到 %+v", path, settings.Display.Logo)
	}

	// 大屏用的就是这个路径，匿名 GET 必须直接取到图。
	resp, err := http.Get(env.server.URL + path)
	if err != nil {
		t.Fatalf("匿名取图: %v", err)
	}
	defer func() { _ = resp.Body.Close() }()
	if resp.StatusCode != http.StatusOK {
		t.Fatalf("配置里的图片路径应可匿名访问，得到 %d", resp.StatusCode)
	}
}

// 小项的 scored / recordEligible 漏传 = 建表默认值（migrations/event/0004 里都是 1），
// 显式 false 才是 false；更新时漏传沿用库里的现值，与单位 / 大项的 active 同口径。
// 与基础数据包导入侧（export_handlers.go 里新建小项默认 true/true）也一致。
func TestEventBoolDefaultsFollowSchemaDefaults(t *testing.T) {
	env := newTestEnv(t)
	ids := env.seed(t)
	client := recorderClient(t, env)

	boolField := func(t *testing.T, body envelope, field string) bool {
		t.Helper()
		got, ok := decodeData[map[string]any](t, body)[field].(bool)
		if !ok {
			t.Fatalf("响应里 %s 不是布尔值: %+v", field, body.Data)
		}
		return got
	}

	// 库里也真的按接口回报的值落着，不只是响应体好看。
	assertStoredFlags := func(t *testing.T, code string, want int) {
		t.Helper()
		var scored, recordEligible int
		if err := env.ev.QueryRow(`SELECT scored, record_eligible FROM events WHERE code = ?`, code).
			Scan(&scored, &recordEligible); err != nil {
			t.Fatalf("查询小项 %s 的开关: %v", code, err)
		}
		if scored != want || recordEligible != want {
			t.Fatalf("小项 %s 的开关应为 %d/%d，得到 %d/%d", code, want, want, scored, recordEligible)
		}
	}

	base := map[string]any{"sportId": ids.sport, "code": "E-BOOL", "name": "开关缺省"}

	status, body := env.do(client, http.MethodPost, "/api/events", base, true)
	if status != http.StatusOK || !body.OK {
		t.Fatalf("建小项应 200，得到 %d %+v", status, body.Error)
	}
	if !boolField(t, body, "scored") || !boolField(t, body, "recordEligible") {
		t.Fatalf("漏传开关应取建表默认值 true: %+v", body.Data)
	}
	assertStoredFlags(t, "E-BOOL", 1)
	eventID := int64(decodeData[map[string]any](t, body)["id"].(float64))

	// 更新漏传沿用现值：库里是 true/true 时，只改名字不能把它们翻成 false。
	rename := map[string]any{"sportId": ids.sport, "code": "E-BOOL", "name": "开关缺省（改名一）"}
	status, body = env.do(client, http.MethodPut, fmt.Sprintf("/api/events/%d", eventID), rename, true)
	if status != http.StatusOK || !body.OK {
		t.Fatalf("改名应 200，得到 %d %+v", status, body.Error)
	}
	if !boolField(t, body, "scored") || !boolField(t, body, "recordEligible") {
		t.Fatalf("更新漏传应沿用库里的 true: %+v", body.Data)
	}

	// 显式 false 才关得掉：接口不能无视调用方的明确意图。
	turnOff := map[string]any{
		"sportId": ids.sport, "code": "E-BOOL", "name": "开关缺省（改名二）",
		"scored": false, "recordEligible": false,
	}
	status, body = env.do(client, http.MethodPut, fmt.Sprintf("/api/events/%d", eventID), turnOff, true)
	if status != http.StatusOK || !body.OK {
		t.Fatalf("显式关开关应 200，得到 %d %+v", status, body.Error)
	}
	if boolField(t, body, "scored") || boolField(t, body, "recordEligible") {
		t.Fatalf("显式 false 应落库为 false: %+v", body.Data)
	}

	// 反过来：库里是 false/false 时，更新漏传也不能把它打开。
	rename["name"] = "开关缺省（改名三）"
	status, body = env.do(client, http.MethodPut, fmt.Sprintf("/api/events/%d", eventID), rename, true)
	if status != http.StatusOK || !body.OK {
		t.Fatalf("再改名应 200，得到 %d %+v", status, body.Error)
	}
	if boolField(t, body, "scored") || boolField(t, body, "recordEligible") {
		t.Fatalf("更新漏传应沿用库里的 false: %+v", body.Data)
	}

	// 新建时显式传 false 同样照办，缺省值不覆盖调用方的明确意图。
	explicitOff := map[string]any{
		"sportId": ids.sport, "code": "E-BOOL-OFF", "name": "开关显式关闭",
		"scored": false, "recordEligible": false,
	}
	status, body = env.do(client, http.MethodPost, "/api/events", explicitOff, true)
	if status != http.StatusOK || !body.OK {
		t.Fatalf("显式传 false 应 200，得到 %d %+v", status, body.Error)
	}
	if boolField(t, body, "scored") || boolField(t, body, "recordEligible") {
		t.Fatalf("显式 false 应落库为 false: %+v", body.Data)
	}
	assertStoredFlags(t, "E-BOOL-OFF", 0)
	assertStoredFlags(t, "E-BOOL", 0)
}

// ---------- 上传图片的删除与孤儿清理 ----------

// uploadOrphansBody 对应 GET /api/uploads/orphans 的 data。
type uploadOrphansBody struct {
	Items      []uploadOrphanBody `json:"items"`
	Total      int                `json:"total"`
	TotalBytes int64              `json:"totalBytes"`
}

type uploadOrphanBody struct {
	Name       string `json:"name"`
	URL        string `json:"url"`
	Size       int64  `json:"size"`
	ModifiedAt string `json:"modifiedAt"`
}

type uploadDeleteFailureBody struct {
	Name   string `json:"name"`
	Reason string `json:"reason"`
}

type uploadDeleteBody struct {
	Deleted []string                  `json:"deleted"`
	Failed  []uploadDeleteFailureBody `json:"failed"`
}

// uploadAdminEnv 建好带项目目录的环境并登录 admin：
// 删文件与孤儿清理是系统级资源管理，只有 admin 能做（与字体删除同一档）。
func uploadAdminEnv(t *testing.T) (*testEnv, string, *http.Client) {
	t.Helper()
	env, uploadsDir := newUploadEnv(t)
	env.createUser("admin", "admin-pass", "admin")
	client, _ := env.client()
	env.login(client, "admin", "admin-pass")
	return env, uploadsDir, client
}

// uploadOne 上传一张图片，返回 /uploads/<随机名>。
func uploadOne(t *testing.T, env *testEnv, client *http.Client) string {
	t.Helper()
	status, body := env.postUpload(t, client, "logo.png", pngContent())
	if status != http.StatusOK || !body.OK {
		t.Fatalf("上传图片应 200，得到 %d %+v", status, body.Error)
	}
	return decodeData[uploadResultBody](t, body).Path
}

func uploadBaseName(path string) string {
	return path[strings.LastIndex(path, "/")+1:]
}

type teamCreatedBody struct {
	ID int64 `json:"id"`
}

// createTeamWithLogo 建一个挂 logo 的单位，返回 id；logo 引用点是 teams.logo_path。
func createTeamWithLogo(t *testing.T, env *testEnv, client *http.Client, code, name, logo string) int64 {
	t.Helper()
	status, body := env.do(client, http.MethodPost, "/api/teams", map[string]any{
		"code": code, "name": name, "logoPath": logo, "active": true,
	}, true)
	if status != http.StatusOK || !body.OK {
		t.Fatalf("建单位应 200，得到 %d %+v", status, body.Error)
	}
	return decodeData[teamCreatedBody](t, body).ID
}

// putImageRef 改一处赛事设置的图片引用（path 传空串表示清除）。
func putImageRef(t *testing.T, env *testEnv, client *http.Client, key, path string) {
	t.Helper()
	event := map[string]any{}
	display := map[string]any{}
	switch key {
	case "event.logo_path":
		event["logoPath"] = path
	case "display.logo":
		display["logo"] = path
	case "display.background":
		display["background"] = path
	default:
		t.Fatalf("未知的引用点 %s", key)
	}
	status, body := env.do(client, http.MethodPut, "/api/settings",
		// requestId 必须带上目标值：服务端按 body.requestId 做幂等回放，
		// 「先设成 A 再清空」用同一个 id 会让第二次直接回放第一次的响应，清空根本没落库。
		map[string]any{"event": event, "display": display, "requestId": "req-ref-" + key + "-" + path}, true)
	if status != http.StatusOK {
		t.Fatalf("设置 %s 应 200，得到 %d %+v", key, status, body.Error)
	}
}

func listOrphans(t *testing.T, env *testEnv, client *http.Client) uploadOrphansBody {
	t.Helper()
	status, body := env.do(client, http.MethodGet, "/api/uploads/orphans", nil, false)
	if status != http.StatusOK || !body.OK {
		t.Fatalf("列孤儿图片应 200，得到 %d %+v", status, body.Error)
	}
	return decodeData[uploadOrphansBody](t, body)
}

// 孤儿清单只列「没有任何引用点用到」的图片：赛事会标与单位图标都要被认出来。
func TestListUploadOrphansOnlyUnreferenced(t *testing.T) {
	env, uploadsDir, client := uploadAdminEnv(t)

	eventLogo := uploadOne(t, env, client)
	teamLogo := uploadOne(t, env, client)
	free := uploadOne(t, env, client)
	if names := uploadsDirEntries(t, uploadsDir); len(names) != 3 {
		t.Fatalf("应先落盘 3 张图片，实际 %v", names)
	}

	putImageRef(t, env, client, "event.logo_path", eventLogo)
	createTeamWithLogo(t, env, client, "T1", "第一中学", teamLogo)

	orphans := listOrphans(t, env, client)
	if orphans.Total != 1 || len(orphans.Items) != 1 {
		t.Fatalf("只应剩 1 张孤儿，得到 total=%d items=%+v", orphans.Total, orphans.Items)
	}
	item := orphans.Items[0]
	if item.Name != uploadBaseName(free) {
		t.Fatalf("孤儿应是未被引用的那张，得到 %q，期望 %q", item.Name, uploadBaseName(free))
	}
	if item.URL != free {
		t.Fatalf("孤儿 URL = %q，期望 %q", item.URL, free)
	}
	if item.Size != int64(len(pngContent())) {
		t.Fatalf("孤儿大小 = %d，期望 %d", item.Size, len(pngContent()))
	}
	if _, err := time.Parse(time.RFC3339, item.ModifiedAt); err != nil {
		t.Fatalf("修改时间应是 RFC3339，得到 %q（%v）", item.ModifiedAt, err)
	}
	if orphans.TotalBytes != item.Size {
		t.Fatalf("总占用 = %d，期望 %d", orphans.TotalBytes, item.Size)
	}

	// 把图配到大屏会标上，它就不再是孤儿。
	putImageRef(t, env, client, "display.logo", free)
	if after := listOrphans(t, env, client); after.Total != 0 || len(after.Items) != 0 {
		t.Fatalf("全部被引用后应没有孤儿，得到 %+v", after)
	}
}

// 没有任何上传时是空清单而不是错误，便于前端直接渲染空态。
func TestListUploadOrphansEmptyWhenNoUploads(t *testing.T) {
	env, _, client := uploadAdminEnv(t)
	orphans := listOrphans(t, env, client)
	if orphans.Total != 0 || orphans.TotalBytes != 0 || orphans.Items == nil {
		t.Fatalf("空目录应回空数组而不是 null：%+v（items=%#v）", orphans, orphans.Items)
	}
}

// 删除被引用的图片必须 409，并把「被谁引用」写进提示；被引用的文件不能被删掉。
func TestDeleteUploadRejectsReferenced(t *testing.T) {
	env, uploadsDir, client := uploadAdminEnv(t)

	eventLogo := uploadOne(t, env, client)
	displayLogo := uploadOne(t, env, client)
	background := uploadOne(t, env, client)
	teamLogo := uploadOne(t, env, client)
	createTeamWithLogo(t, env, client, "T1", "第一中学", teamLogo)
	putImageRef(t, env, client, "event.logo_path", eventLogo)
	putImageRef(t, env, client, "display.logo", displayLogo)
	putImageRef(t, env, client, "display.background", background)

	cases := []struct {
		path  string
		label string
	}{
		{eventLogo, "赛事会标"},
		{displayLogo, "大屏会标"},
		{background, "大屏背景图"},
		{teamLogo, "单位「第一中学」的单位图标"},
	}
	for _, c := range cases {
		status, body := env.do(client, http.MethodDelete, "/api/uploads/"+uploadBaseName(c.path), nil, true)
		if status != http.StatusConflict {
			t.Fatalf("删除被引用的 %s 应 409，得到 %d %+v", c.path, status, body.Error)
		}
		if body.Error == nil || !strings.Contains(body.Error.Message, c.label) {
			t.Fatalf("409 提示应说明引用位置 %q：%+v", c.label, body.Error)
		}
		if _, err := os.Stat(filepath.Join(uploadsDir, uploadBaseName(c.path))); err != nil {
			t.Fatalf("被引用的图片不能被删除 %s: %v", c.path, err)
		}
	}

	// 清掉引用后同一张图就能删掉，文件确实消失。
	putImageRef(t, env, client, "event.logo_path", "")
	if status, body := env.do(client, http.MethodDelete, "/api/uploads/"+uploadBaseName(eventLogo), nil, true); status != http.StatusOK {
		t.Fatalf("不再被引用的图片应可删除，得到 %d %+v", status, body.Error)
	}
	if _, err := os.Stat(filepath.Join(uploadsDir, uploadBaseName(eventLogo))); !os.IsNotExist(err) {
		t.Fatalf("删除后文件应消失: %v", err)
	}

	// 名字合法但文件不存在 → 404；非法文件名一律 404，不做任何删除尝试。
	if status, _ := env.do(client, http.MethodDelete, "/api/uploads/0123456789abcdef0123456789abcdef.png", nil, true); status != http.StatusNotFound {
		t.Fatalf("删除不存在的图片应 404，得到 %d", status)
	}
	if status, _ := env.do(client, http.MethodDelete, "/api/uploads/notes.txt", nil, true); status != http.StatusNotFound {
		t.Fatalf("非图片扩展名应 404，得到 %d", status)
	}
}

// 被「彻底删除」（可恢复）的单位仍算引用：恢复后图标必须还在，所以不能当孤儿删掉。
func TestUploadOrphansCountsHiddenTeam(t *testing.T) {
	env, _, client := uploadAdminEnv(t)
	logo := uploadOne(t, env, client)
	teamID := createTeamWithLogo(t, env, client, "T1", "第一中学", logo)

	if status, body := env.do(client, http.MethodDelete, fmt.Sprintf("/api/teams/%d?purge=1", teamID), nil, true); status != http.StatusOK {
		t.Fatalf("彻底删除单位应 200，得到 %d %+v", status, body.Error)
	}
	if orphans := listOrphans(t, env, client); orphans.Total != 0 {
		t.Fatalf("隐藏单位的 logo 仍算被引用，不应进孤儿清单：%+v", orphans.Items)
	}
	if status, body := env.do(client, http.MethodDelete, "/api/uploads/"+uploadBaseName(logo), nil, true); status != http.StatusConflict {
		t.Fatalf("隐藏单位的 logo 应拒删，得到 %d %+v", status, body.Error)
	}
}

// 批量删除只动点名的文件：被引用的、不存在的、非法的逐条回报且不动文件。
func TestDeleteUploadOrphansBatch(t *testing.T) {
	env, uploadsDir, client := uploadAdminEnv(t)
	used := uploadOne(t, env, client)
	orphanA := uploadOne(t, env, client)
	orphanB := uploadOne(t, env, client)
	createTeamWithLogo(t, env, client, "T1", "第一中学", used)

	names := []string{uploadBaseName(orphanA), uploadBaseName(orphanB), uploadBaseName(used), "0123456789abcdef0123456789abcdef.png", "../config.yaml"}
	status, body := env.do(client, http.MethodPost, "/api/uploads/orphans/delete",
		map[string]any{"names": names, "requestId": "req-orphan-del-1"}, true)
	if status != http.StatusOK || !body.OK {
		t.Fatalf("批量删除应 200，得到 %d %+v", status, body.Error)
	}
	result := decodeData[uploadDeleteBody](t, body)
	if len(result.Deleted) != 2 || result.Deleted[0] != uploadBaseName(orphanA) || result.Deleted[1] != uploadBaseName(orphanB) {
		t.Fatalf("只应删掉两张孤儿，得到 %+v", result.Deleted)
	}
	if len(result.Failed) != 3 {
		t.Fatalf("应有 3 条失败回报，得到 %+v", result.Failed)
	}
	reasonOf := func(name string) string {
		for _, item := range result.Failed {
			if item.Name == name {
				return item.Reason
			}
		}
		t.Fatalf("失败回报里缺少 %s：%+v", name, result.Failed)
		return ""
	}
	if reason := reasonOf(uploadBaseName(used)); !strings.Contains(reason, "仍被引用") || !strings.Contains(reason, "单位「第一中学」") {
		t.Fatalf("被引用条目的原因应点名引用位置，得到 %q", reason)
	}
	if reason := reasonOf("0123456789abcdef0123456789abcdef.png"); !strings.Contains(reason, "文件不存在") {
		t.Fatalf("缺失文件应报不存在，得到 %q", reason)
	}
	if reason := reasonOf("../config.yaml"); !strings.Contains(reason, "文件名非法") {
		t.Fatalf("非法文件名应被拒，得到 %q", reason)
	}

	for _, name := range []string{uploadBaseName(orphanA), uploadBaseName(orphanB)} {
		if _, err := os.Stat(filepath.Join(uploadsDir, name)); !os.IsNotExist(err) {
			t.Fatalf("孤儿 %s 应已删除: %v", name, err)
		}
	}
	if _, err := os.Stat(filepath.Join(uploadsDir, uploadBaseName(used))); err != nil {
		t.Fatalf("被引用的图片不能被批量删除: %v", err)
	}
	var audits int
	if err := env.ev.QueryRow(`SELECT COUNT(*) FROM audit_logs WHERE action = 'uploads.delete'`).Scan(&audits); err != nil {
		t.Fatalf("查询删除审计: %v", err)
	}
	if audits != 1 {
		t.Fatalf("批量删除应写一条 uploads.delete 审计，得到 %d", audits)
	}

	// 空清单直接拒绝，不能让「没传 names」变成「什么都没删但显示成功」。
	if status, _ := env.do(client, http.MethodPost, "/api/uploads/orphans/delete",
		map[string]any{"names": []string{}, "requestId": "req-orphan-del-2"}, true); status != http.StatusBadRequest {
		t.Fatalf("空 names 应 400，得到 %d", status)
	}
}

// 删除与清理是系统级资源管理：guest 401、recorder 403。
func TestUploadDeleteRequiresAdmin(t *testing.T) {
	env, uploadsDir, admin := uploadAdminEnv(t)
	orphan := uploadBaseName(uploadOne(t, env, admin))
	env.createUser("recorder", "recorder-pass", "recorder")

	guest, _ := env.client()
	// 各自用对应的方法：GET 那条走的是 /api/uploads/{name} 之外的兜底路由，用错方法量到的是 404 而不是权限。
	if status, _ := env.do(guest, http.MethodGet, "/api/uploads/orphans", nil, false); status != http.StatusForbidden {
		t.Fatalf("guest 读孤儿清单应 403，得到 %d", status)
	}
	if status, _ := env.do(guest, http.MethodDelete, "/api/uploads/"+orphan, nil, false); status != http.StatusUnauthorized {
		t.Fatalf("guest 删图片应 401，得到 %d", status)
	}
	if status, _ := env.do(guest, http.MethodPost, "/api/uploads/orphans/delete", map[string]any{"names": []string{orphan}}, false); status != http.StatusUnauthorized {
		t.Fatalf("guest 批量删孤儿应 401，得到 %d", status)
	}

	recorder, _ := env.client()
	env.login(recorder, "recorder", "recorder-pass")
	if status, _ := env.do(recorder, http.MethodGet, "/api/uploads/orphans", nil, false); status != http.StatusForbidden {
		t.Fatalf("recorder 读孤儿清单应 403，得到 %d", status)
	}
	if status, _ := env.do(recorder, http.MethodDelete, "/api/uploads/"+orphan, nil, true); status != http.StatusForbidden {
		t.Fatalf("recorder 删图片应 403，得到 %d", status)
	}
	if status, _ := env.do(recorder, http.MethodPost, "/api/uploads/orphans/delete",
		map[string]any{"names": []string{orphan}, "requestId": "req-orphan-rec"}, true); status != http.StatusForbidden {
		t.Fatalf("recorder 批量删孤儿应 403，得到 %d", status)
	}
	// 权限不足的请求不能有任何副作用：那张孤儿必须还在。
	if _, err := os.Stat(filepath.Join(uploadsDir, orphan)); err != nil {
		t.Fatalf("权限不足的删除请求不该动文件: %v", err)
	}
}

// 删除接口不能靠路径穿越打到 uploads 之外：uploads 同级的图片扩展名文件必须毫发无损。
func TestDeleteUploadRejectsTraversal(t *testing.T) {
	env, uploadsDir, client := uploadAdminEnv(t)
	projectDir := filepath.Dir(uploadsDir)
	const secret = "outside-secret"
	if err := os.MkdirAll(projectDir, 0o755); err != nil {
		t.Fatalf("创建项目目录: %v", err)
	}
	outside := filepath.Join(projectDir, "secret.png")
	if err := os.WriteFile(outside, []byte(secret), 0o644); err != nil {
		t.Fatalf("写 uploads 之外的文件: %v", err)
	}

	paths := []string{
		"/api/uploads/..%2Fsecret.png",
		"/api/uploads/%2e%2e%2Fsecret.png",
		"/api/uploads/a%2Fb.png",
	}
	for _, path := range paths {
		status, _ := env.do(client, http.MethodDelete, path, nil, true)
		if status == http.StatusOK {
			t.Fatalf("%s 不应删成功", path)
		}
		if body, err := os.ReadFile(outside); err != nil || string(body) != secret {
			t.Fatalf("uploads 之外的文件被动了 %s: %v %q", path, err, body)
		}
	}
}