package dto

import (
	"encoding/json"
	"testing"

	"git.yeij.top/AskaEth/Scoreboard/server/internal/domain"
)

// 非 admin 会话只能看到大屏渲染所需字段：admin-only 字段必须清零，
// 且序列化后仍是显式的 null / 0，不能变成字段缺失。
func TestEventSettingsWithoutAdminFields(t *testing.T) {
	profileID := int64(3)
	full := EventSettings{
		Event:            EventSettingsEvent{Name: "运动会"},
		Display:          EventSettingsDisplay{Title: "大屏", RotateSecond: 15},
		Standings:        EventSettingsStandings{IndividualToTeamWeight: 0.5, RankingMode: "points", ShowIndividualBoard: true, ShowIndividualMedals: false},
		DefaultProfileID: &profileID,
		RequireApproval:  true,
	}

	got := full.WithoutAdminFields()
	if got.DefaultProfileID != nil {
		t.Fatalf("defaultProfileId 应置空，得到 %v", got.DefaultProfileID)
	}
	if got.RequireApproval {
		t.Fatalf("requireApproval 应清零")
	}
	if got.Standings.IndividualToTeamWeight != 0 {
		t.Fatalf("individualToTeamWeight 应清零，得到 %v", got.Standings.IndividualToTeamWeight)
	}
	if got.Event.Name != "运动会" || got.Display.Title != "大屏" || got.Display.RotateSecond != 15 {
		t.Fatalf("event/display 不应被裁剪: %+v", got)
	}
	if got.Standings.RankingMode != "points" || !got.Standings.ShowIndividualBoard || got.Standings.ShowIndividualMedals {
		t.Fatalf("榜单开关不应被裁剪: %+v", got.Standings)
	}

	raw, err := json.Marshal(got)
	if err != nil {
		t.Fatalf("序列化: %v", err)
	}
	var top map[string]json.RawMessage
	if err := json.Unmarshal(raw, &top); err != nil {
		t.Fatalf("解析: %v", err)
	}
	if string(top["defaultProfileId"]) != "null" {
		t.Fatalf("defaultProfileId 应显式序列化为 null: %s", raw)
	}
	if string(top["requireApproval"]) != "false" {
		t.Fatalf("requireApproval 应显式序列化为 false: %s", raw)
	}
	var standings map[string]json.RawMessage
	if err := json.Unmarshal(top["standings"], &standings); err != nil {
		t.Fatalf("解析 standings: %v", err)
	}
	if string(standings["individualToTeamWeight"]) != "0" {
		t.Fatalf("individualToTeamWeight 应显式序列化为 0: %s", raw)
	}
}

// 单位/小项的 DTO 必须把可空列写成显式 null，不能沿用 domain 的 omitempty。
func TestTeamAndEventFromDomainNullableFields(t *testing.T) {
	teamRaw, err := json.Marshal(TeamFromDomain(domain.Team{ID: 1, Code: "T1", Name: "第一单位"}))
	if err != nil {
		t.Fatalf("序列化单位: %v", err)
	}
	var team map[string]json.RawMessage
	if err := json.Unmarshal(teamRaw, &team); err != nil {
		t.Fatalf("解析单位: %v", err)
	}
	for _, key := range []string{"shortName", "logoPath", "color"} {
		if got, ok := team[key]; !ok || string(got) != "null" {
			t.Fatalf("单位字段 %s 应为显式 null: %s", key, teamRaw)
		}
	}

	eventRaw, err := json.Marshal(EventFromDomain(domain.Event{ID: 1, Code: "E1", Name: "100米"}))
	if err != nil {
		t.Fatalf("序列化小项: %v", err)
	}
	var event map[string]json.RawMessage
	if err := json.Unmarshal(eventRaw, &event); err != nil {
		t.Fatalf("解析小项: %v", err)
	}
	for _, key := range []string{"scheduledAt", "venue", "remark"} {
		if got, ok := event[key]; !ok || string(got) != "null" {
			t.Fatalf("小项字段 %s 应为显式 null: %s", key, eventRaw)
		}
	}
	if string(event["sortOrder"]) != "0" {
		t.Fatalf("sortOrder 应保留 0: %s", eventRaw)
	}
}