package service

import (
	"context"
	"testing"
	"time"

	quitmodel "wx_service/internal/quitcheckin/model"

	"gorm.io/driver/sqlite"
	"gorm.io/gorm"
	"gorm.io/gorm/logger"
)

func setupQuitHPTestDB(t *testing.T) *gorm.DB {
	t.Helper()

	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{
		Logger: logger.Default.LogMode(logger.Silent),
	})
	if err != nil {
		t.Fatalf("open sqlite: %v", err)
	}

	if err := db.AutoMigrate(
		&quitmodel.Profile{},
		&quitmodel.DailyStatus{},
		&quitmodel.RelapseEvent{},
		&quitmodel.HPChangeLog{},
		&quitmodel.RewardGoal{},
		&quitmodel.DreamPreset{},
	); err != nil {
		t.Fatalf("auto migrate: %v", err)
	}

	return db
}

func TestQuitCheckinHomeInitializesHP(t *testing.T) {
	t.Parallel()

	db := setupQuitHPTestDB(t)
	svc := NewService(db)
	ctx := context.Background()
	uid := 2001

	startDate := time.Date(2026, 4, 10, 0, 0, 0, 0, time.Local)
	now := time.Date(2026, 4, 10, 9, 0, 0, 0, time.Local)

	if _, err := svc.UpsertProfile(ctx, uid, UpsertProfileRequest{
		QuitStartDate:      &startDate,
		PackPriceCent:      intPtr(2500),
		BaselineCigsPerDay: intPtr(12),
	}, "测试用户", "", now); err != nil {
		t.Fatalf("upsert profile: %v", err)
	}

	home, err := svc.Home(ctx, uid, now)
	if err != nil {
		t.Fatalf("home: %v", err)
	}
	if home.Summary.HPCurrent <= 0 {
		t.Fatalf("hp_current=%d, want > 0", home.Summary.HPCurrent)
	}
	if home.Summary.HPChangeToday != 0 {
		t.Fatalf("hp_change_today=%d, want 0", home.Summary.HPChangeToday)
	}
}

func TestQuitCheckinCheckinIncreasesHPAndTracksTodayDelta(t *testing.T) {
	t.Parallel()

	db := setupQuitHPTestDB(t)
	svc := NewService(db)
	ctx := context.Background()
	uid := 2002

	startDate := time.Date(2026, 4, 10, 0, 0, 0, 0, time.Local)
	day1 := time.Date(2026, 4, 10, 9, 0, 0, 0, time.Local)

	if _, err := svc.UpsertProfile(ctx, uid, UpsertProfileRequest{
		QuitStartDate:      &startDate,
		PackPriceCent:      intPtr(2500),
		BaselineCigsPerDay: intPtr(10),
	}, "测试用户", "", day1); err != nil {
		t.Fatalf("upsert profile: %v", err)
	}

	before, err := svc.Home(ctx, uid, day1)
	if err != nil {
		t.Fatalf("home before: %v", err)
	}

	_, err = svc.Checkin(ctx, uid, CheckinRequest{Date: day1, Note: "day1"}, day1)
	if err != nil {
		t.Fatalf("checkin: %v", err)
	}

	after, err := svc.Home(ctx, uid, day1)
	if err != nil {
		t.Fatalf("home after: %v", err)
	}
	if after.Summary.HPCurrent <= before.Summary.HPCurrent {
		t.Fatalf("hp_current before=%d after=%d, want after > before", before.Summary.HPCurrent, after.Summary.HPCurrent)
	}
	if after.Summary.HPChangeToday <= 0 {
		t.Fatalf("hp_change_today=%d, want > 0", after.Summary.HPChangeToday)
	}
}

func TestQuitCheckinSmokeSlipDecreasesHPAndMarksRelapsed(t *testing.T) {
	t.Parallel()

	db := setupQuitHPTestDB(t)
	svc := NewService(db)
	ctx := context.Background()
	uid := 2003

	startDate := time.Date(2026, 4, 10, 0, 0, 0, 0, time.Local)
	day1 := time.Date(2026, 4, 10, 9, 0, 0, 0, time.Local)

	if _, err := svc.UpsertProfile(ctx, uid, UpsertProfileRequest{
		QuitStartDate:      &startDate,
		PackPriceCent:      intPtr(2500),
		BaselineCigsPerDay: intPtr(8),
	}, "测试用户", "", day1); err != nil {
		t.Fatalf("upsert profile: %v", err)
	}

	before, err := svc.Home(ctx, uid, day1)
	if err != nil {
		t.Fatalf("home before: %v", err)
	}

	slipAt := time.Date(2026, 4, 10, 10, 15, 0, 0, time.Local)
	if err := svc.RecordSmokeSlip(ctx, uid, slipAt, 1, "slip"); err != nil {
		t.Fatalf("record slip: %v", err)
	}

	after, err := svc.Home(ctx, uid, day1)
	if err != nil {
		t.Fatalf("home after: %v", err)
	}
	if after.DailyStatus.Status != quitmodel.DailyStatusRelapsed {
		t.Fatalf("daily status=%s, want=%s", after.DailyStatus.Status, quitmodel.DailyStatusRelapsed)
	}
	if after.Summary.HPCurrent >= before.Summary.HPCurrent {
		t.Fatalf("hp_current before=%d after=%d, want after < before", before.Summary.HPCurrent, after.Summary.HPCurrent)
	}
	if after.Summary.HPChangeToday >= 0 {
		t.Fatalf("hp_change_today=%d, want < 0", after.Summary.HPChangeToday)
	}
	if after.Summary.CurrentStreakDays != 0 {
		t.Fatalf("current_streak_days=%d, want 0", after.Summary.CurrentStreakDays)
	}
}