package service

import (
	"context"
	"testing"
	"time"

	usermodel "wx_service/internal/model"
	quitmodel "wx_service/internal/quitcheckin/model"

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

func setupSupervisorTestDB(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(
		&usermodel.User{},
		&quitmodel.Profile{},
		&quitmodel.DailyStatus{},
		&quitmodel.RelapseEvent{},
		&quitmodel.HPChangeLog{},
		&quitmodel.SupervisorInvite{},
		&quitmodel.SupervisorBinding{},
		&quitmodel.RewardGoal{},
		&quitmodel.DreamPreset{},
	); err != nil {
		t.Fatalf("auto migrate: %v", err)
	}

	return db
}

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

	db := setupSupervisorTestDB(t)
	svc := NewService(db)
	ctx := context.Background()

	ownerUID := 3001
	supervisorUID := 3002
	now := time.Date(2026, 4, 16, 10, 0, 0, 0, time.Local)

	// seed users
	if err := db.Create(&usermodel.User{ID: uint(ownerUID), NickName: "owner"}).Error; err != nil {
		t.Fatalf("seed owner user: %v", err)
	}
	if err := db.Create(&usermodel.User{ID: uint(supervisorUID), NickName: "supervisor"}).Error; err != nil {
		t.Fatalf("seed supervisor user: %v", err)
	}

	startDate := time.Date(2026, 4, 10, 0, 0, 0, 0, time.Local)
	if _, err := svc.UpsertProfile(ctx, ownerUID, UpsertProfileRequest{
		QuitStartDate:      &startDate,
		PackPriceCent:      intPtr(2500),
		BaselineCigsPerDay: intPtr(10),
	}, "owner", "", now); err != nil {
		t.Fatalf("upsert profile: %v", err)
	}

	invite, err := svc.CreateSupervisorInvite(ctx, ownerUID, now, 7)
	if err != nil {
		t.Fatalf("create invite: %v", err)
	}
	if invite.Token == "" {
		t.Fatalf("invite token empty")
	}

	if err := svc.BindSupervisorInvite(ctx, supervisorUID, invite.Token, now); err != nil {
		t.Fatalf("bind: %v", err)
	}

	overview, err := svc.GetSupervisorOverview(ctx, supervisorUID, now)
	if err != nil {
		t.Fatalf("overview: %v", err)
	}
	if len(overview.Items) != 1 {
		t.Fatalf("overview items=%d, want=1", len(overview.Items))
	}
	if overview.Items[0].Owner.UserID != ownerUID {
		t.Fatalf("owner uid=%d, want=%d", overview.Items[0].Owner.UserID, ownerUID)
	}
	if overview.Items[0].Home.Summary.HPCurrent <= 0 {
		t.Fatalf("hp_current=%d, want > 0", overview.Items[0].Home.Summary.HPCurrent)
	}

	status, err := svc.GetSupervisorStatus(ctx, ownerUID)
	if err != nil {
		t.Fatalf("status: %v", err)
	}
	if len(status.Items) != 1 || status.Items[0].UserID != supervisorUID {
		t.Fatalf("status=%v, want one supervisor uid=%d", status.Items, supervisorUID)
	}
}

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

	db := setupSupervisorTestDB(t)
	svc := NewService(db)
	ctx := context.Background()

	ownerUID := 3101
	supervisorUID := 3102
	now := time.Date(2026, 4, 16, 10, 0, 0, 0, time.Local)

	if err := db.Create(&usermodel.User{ID: uint(ownerUID), NickName: "owner"}).Error; err != nil {
		t.Fatalf("seed owner user: %v", err)
	}
	if err := db.Create(&usermodel.User{ID: uint(supervisorUID), NickName: "supervisor"}).Error; err != nil {
		t.Fatalf("seed supervisor user: %v", err)
	}

	startDate := time.Date(2026, 4, 10, 0, 0, 0, 0, time.Local)
	if _, err := svc.UpsertProfile(ctx, ownerUID, UpsertProfileRequest{
		QuitStartDate:      &startDate,
		PackPriceCent:      intPtr(2500),
		BaselineCigsPerDay: intPtr(10),
	}, "owner", "", now); err != nil {
		t.Fatalf("upsert profile: %v", err)
	}

	invite, err := svc.CreateSupervisorInvite(ctx, ownerUID, now, 7)
	if err != nil {
		t.Fatalf("create invite: %v", err)
	}
	if err := svc.BindSupervisorInvite(ctx, supervisorUID, invite.Token, now); err != nil {
		t.Fatalf("bind: %v", err)
	}

	if err := svc.RevokeSupervisorBinding(ctx, supervisorUID, ownerUID, supervisorUID, now); err != nil {
		t.Fatalf("revoke by supervisor: %v", err)
	}

	overview, err := svc.GetSupervisorOverview(ctx, supervisorUID, now)
	if err != nil {
		t.Fatalf("overview: %v", err)
	}
	if len(overview.Items) != 0 {
		t.Fatalf("overview items=%d, want=0 after revoke", len(overview.Items))
	}
}