package httpapi_test

import (
	"net/http"
	"strconv"
	"testing"
	"time"
)

type liveEventsBody struct {
	Source   string  `json:"source"`
	EventIDs []int64 `json:"eventIds"`
	Events   []struct {
		Event struct {
			ID   int64  `json:"id"`
			Name string `json:"name"`
		} `json:"event"`
		Reason string `json:"reason"`
		Groups []struct {
			EventID      int64 `json:"eventId"`
			CategoryID   int64 `json:"categoryId"`
			CategoryName string
			Rows         []struct {
				EntryID    int64  `json:"entryId"`
				Rank       *int   `json:"rank"`
				ResultText string `json:"resultText"`
			} `json:"rows"`
		} `json:"groups"`
	} `json:"events"`
}

type settingsBody struct {
	Display struct {
		LiveEvents []int64 `json:"liveEvents"`
		LiveSource string  `json:"liveSource"`
	} `json:"display"`
}

// 设置读写：display.live_events / display.live_source 要能存取，非法值必须当场拒绝。
func TestSettingsLiveEventsRoundTrip(t *testing.T) {
	env := newTestEnv(t)
	ids := env.seed(t)
	env.createUser("admin", "admin-pass", "admin")
	client, _ := env.client()
	env.login(client, "admin", "admin-pass")

	if status, e := env.do(client, http.MethodPut, "/api/settings", map[string]any{
		"display": map[string]any{"liveEvents": []int64{ids.event}, "liveSource": "manual"},
	}, true); status != http.StatusOK {
		t.Fatalf("保存实时赛况设置应 200，得到 %d %+v", status, e.Error)
	}

	status, e := env.do(client, http.MethodGet, "/api/settings", nil, false)
	if status != http.StatusOK {
		t.Fatalf("读取设置应 200，得到 %d %+v", status, e.Error)
	}
	got := decodeData[settingsBody](t, e)
	if got.Display.LiveSource != "manual" || len(got.Display.LiveEvents) != 1 || got.Display.LiveEvents[0] != ids.event {
		t.Fatalf("设置应原样读回，得到 %+v", got.Display)
	}

	// 库里以逗号分隔的 id 文本存储，随赛事包一起走。
	var raw string
	if err := env.ev.QueryRow(`SELECT value FROM settings WHERE key = 'display.live_events'`).Scan(&raw); err != nil {
		t.Fatalf("读取存储值: %v", err)
	}
	if raw != strconv.FormatInt(ids.event, 10) {
		t.Fatalf("display.live_events 应存逗号分隔 id，得到 %q", raw)
	}

	// 清空人工指定：传空数组。
	if status, e := env.do(client, http.MethodPut, "/api/settings", map[string]any{
		"display": map[string]any{"liveEvents": []int64{}},
	}, true); status != http.StatusOK {
		t.Fatalf("清空人工指定应 200，得到 %d %+v", status, e.Error)
	}
	_, e = env.do(client, http.MethodGet, "/api/settings", nil, false)
	if cleared := decodeData[settingsBody](t, e); len(cleared.Display.LiveEvents) != 0 {
		t.Fatalf("清空后应回空数组，得到 %+v", cleared.Display.LiveEvents)
	}

	// 非法取值全部拒绝。
	for _, patch := range []map[string]any{
		{"display": map[string]any{"liveSource": "sometimes"}},
		{"display": map[string]any{"liveEvents": []int64{ids.event, ids.event + 1, ids.event + 2}}},
		{"display": map[string]any{"liveEvents": []int64{999999}}},
	} {
		status, e := env.do(client, http.MethodPut, "/api/settings", patch, true)
		if status != http.StatusBadRequest || e.Error == nil || e.Error.Code != "VALIDATION_FAILED" {
			t.Fatalf("非法设置应 400 VALIDATION_FAILED，得到 %d %+v（%+v）", status, e.Error, patch)
		}
	}
}

// 当前项目的判定：manual 认人工指定；auto 先排期命中；都不命中回退到最近发布过成绩的项目；空赛事不炸。
func TestDisplayLiveEndpoint(t *testing.T) {
	env := newTestEnv(t)
	ids := env.seed(t)
	env.createUser("recorder", "recorder-pass", "recorder")
	client, _ := env.client()
	env.login(client, "recorder", "recorder-pass")
	env.createUser("admin", "admin-pass", "admin")
	adminClient, _ := env.client()
	env.login(adminClient, "admin", "admin-pass")

	// 第二、三个小项：只用来验证人工指定（最多 2 个）。
	other := env.insert(t,
		`INSERT INTO events (sport_id, code, name, event_type, result_mode, result_type, compare, scored, multiplier, status)
		 VALUES (?, 'M200', '200米跑', 'individual', 'auto', 'time', 'asc', 1, 1, 'pending')`, ids.sport)
	other2 := env.insert(t,
		`INSERT INTO events (sport_id, code, name, event_type, result_mode, result_type, compare, scored, multiplier, status)
		 VALUES (?, 'M400', '400米跑', 'individual', 'auto', 'time', 'asc', 1, 1, 'pending')`, ids.sport)

	guest, _ := env.client()
	live := func() liveEventsBody {
		t.Helper()
		status, e := env.do(guest, http.MethodGet, "/api/display/live", nil, false)
		if status != http.StatusOK || !e.OK {
			t.Fatalf("读取实时赛况应 200，得到 %d %+v", status, e.Error)
		}
		return decodeData[liveEventsBody](t, e)
	}
	setDisplay := func(patch map[string]any) {
		t.Helper()
		if status, e := env.do(adminClient, http.MethodPut, "/api/settings",
			map[string]any{"display": patch}, true); status != http.StatusOK {
			t.Fatalf("保存设置应 200，得到 %d %+v", status, e.Error)
		}
	}

	// 1) manual 只认人工指定（两个）。
	setDisplay(map[string]any{"liveSource": "manual", "liveEvents": []int64{other, other2}})
	got := live()
	if got.Source != "manual" || len(got.EventIDs) != 2 || got.EventIDs[0] != other || got.EventIDs[1] != other2 {
		t.Fatalf("manual 应只认人工指定的两个项目 %d/%d，得到 %+v", other, other2, got)
	}
	if len(got.Events) != 2 || got.Events[0].Reason != "manual" || got.Events[0].Event.ID != other {
		t.Fatalf("manual 命中原因应为 manual，得到 %+v", got.Events)
	}
	if len(got.Events[0].Groups) != 0 {
		t.Fatalf("还没发布成绩时应回空组，得到 %+v", got.Events[0].Groups)
	}

	// 2) auto：排期落在当前窗口内的小项命中。
	scheduled := time.Now().UTC().Add(10 * time.Minute).Format(time.RFC3339)
	env.exec(t, `UPDATE events SET scheduled_at = ? WHERE id = ?`, scheduled, ids.event)
	setDisplay(map[string]any{"liveSource": "auto", "liveEvents": []int64{}})
	got = live()
	if got.Source != "auto" || len(got.EventIDs) != 1 || got.EventIDs[0] != ids.event {
		t.Fatalf("auto 应命中排期窗口内的小项 %d，得到 %+v", ids.event, got)
	}
	if got.Events[0].Reason != "scheduled" {
		t.Fatalf("排期命中的原因应为 scheduled，得到 %+v", got.Events[0])
	}

	// 3) auto：排期都不命中时回退到最近发布过成绩的小项。
	env.exec(t, `UPDATE events SET scheduled_at = NULL WHERE id = ?`, ids.event)
	if status, e := env.do(client, http.MethodPut, "/api/results/draft", map[string]any{
		"eventId":    ids.event,
		"categoryId": ids.category,
		"results": []map[string]any{
			{"entryId": ids.entryA, "resultValue": 11.5, "resultText": "11.50", "unit": "s", "status": "ok"},
			{"entryId": ids.entryB, "status": "ok"},
		},
	}, true); status != http.StatusOK {
		t.Fatalf("保存草稿应 200，得到 %d %+v", status, e.Error)
	}
	if status, e := env.do(client, http.MethodPost, "/api/results/publish", map[string]any{
		"eventId":    ids.event,
		"categoryId": ids.category,
	}, true); status != http.StatusOK {
		t.Fatalf("发布应 200，得到 %d %+v", status, e.Error)
	}

	got = live()
	if len(got.EventIDs) != 1 || got.EventIDs[0] != ids.event {
		t.Fatalf("无排期命中时应回退到最近发布的小项 %d，得到 %+v", ids.event, got)
	}
	if got.Events[0].Reason != "recent" {
		t.Fatalf("回退的原因应为 recent，得到 %+v", got.Events[0])
	}
	if len(got.Events[0].Groups) != 1 || len(got.Events[0].Groups[0].Rows) != 1 {
		t.Fatalf("最近发布的小项应带上已发布成绩（1 条），得到 %+v", got.Events[0].Groups)
	}
	if rank := got.Events[0].Groups[0].Rows[0].Rank; rank == nil || *rank != 1 {
		t.Fatalf("已发布成绩应带名次，得到 %+v", got.Events[0].Groups[0].Rows[0])
	}
}

// 全新赛事（一个小项都没有）时不能报错。
func TestDisplayLiveEmptyEvent(t *testing.T) {
	env := newTestEnv(t)
	client, _ := env.client()
	status, e := env.do(client, http.MethodGet, "/api/display/live", nil, false)
	if status != http.StatusOK || !e.OK {
		t.Fatalf("空赛事读取实时赛况应 200，得到 %d %+v", status, e.Error)
	}
	got := decodeData[liveEventsBody](t, e)
	if len(got.EventIDs) != 0 || len(got.Events) != 0 {
		t.Fatalf("空赛事应回空列表，得到 %+v", got)
	}
	if got.Source != "auto" {
		t.Fatalf("未配置时默认 auto，得到 %q", got.Source)
	}
}