package model

import (
	"context"
	"testing"
	"time"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
	"gorm.io/driver/mysql"
	"gorm.io/gorm"
)

// setupProfileModelTestDB 创建测试数据库（使用MySQL）
func setupProfileModelTestDB(t *testing.T) *gorm.DB {
	t.Helper()

	// 使用 MySQL 进行测试
	dsn := "root:dev123456@tcp(219.159.132.177:17173)/base?charset=utf8mb4&parseTime=true&loc=Local"
	db, err := gorm.Open(mysql.Open(dsn), &gorm.Config{})
	require.NoError(t, err)

	err = db.AutoMigrate(&User{}, &Profile{})
	require.NoError(t, err)

	// 清理所有测试数据（TRUNCATE）
	db.Exec("SET FOREIGN_KEY_CHECKS = 0")
	db.Exec("TRUNCATE TABLE profile")
	db.Exec("TRUNCATE TABLE user")
	db.Exec("SET FOREIGN_KEY_CHECKS = 1")

	return db
}

// createTestUserProfile 创建测试用户和关联的个人资料
func createTestUserProfile(t *testing.T, db *gorm.DB) (int64, int64) {
	t.Helper()

	now := time.Now()

	// 创建用户
	user := &User{
		Username:  "testuser",
		Email:     "test@example.com",
		Password:  "encryptedpassword",
		Phone:     "13800138000",
		Status:    1,
		CreatedAt: now,
		UpdatedAt: now,
	}

	err := db.Create(user).Error
	require.NoError(t, err)

	// 创建个人资料
	profile := &Profile{
		UserId:    user.Id,
		Avatar:    "http://example.com/avatar.jpg",
		Bio:       "Test bio",
		CreatedAt: now,
		UpdatedAt: now,
	}

	err = db.Create(profile).Error
	require.NoError(t, err)

	return user.Id, profile.Id
}

// TestInsertProfile 测试插入个人资料
func TestInsertProfile(t *testing.T) {
	db := setupProfileModelTestDB(t)

	ctx := context.Background()

	// 先创建用户
	now := time.Now()
	user := &User{
		Username:  "testuser",
		Email:     "test@example.com",
		Password:  "encryptedpassword",
		Status:    1,
		CreatedAt: now,
		UpdatedAt: now,
	}

	err := db.Create(user).Error
	require.NoError(t, err)

	// 创建个人资料
	profile := &Profile{
		UserId: user.Id,
		Avatar: "http://example.com/avatar.jpg",
		Bio:    "Test bio",
	}

	id, err := InsertProfile(ctx, db, profile)

	require.NoError(t, err)
	assert.Greater(t, id, int64(0))
	assert.Equal(t, id, profile.Id)

	// 验证数据已保存
	saved, err := FindOneProfile(ctx, db, id)
	require.NoError(t, err)
	assert.Equal(t, "http://example.com/avatar.jpg", saved.Avatar)
	assert.Equal(t, "Test bio", saved.Bio)
}

// TestFindOneProfile 测试根据ID查询个人资料
func TestFindOneProfile(t *testing.T) {
	db := setupProfileModelTestDB(t)

	_, profileId := createTestUserProfile(t, db)
	ctx := context.Background()

	// 查询个人资料
	found, err := FindOneProfile(ctx, db, profileId)

	require.NoError(t, err)
	require.NotNil(t, found)
	assert.Equal(t, profileId, found.Id)
	assert.Equal(t, "http://example.com/avatar.jpg", found.Avatar)
	assert.Equal(t, "Test bio", found.Bio)
}

// TestFindOneProfile_NotFound 测试查询不存在的个人资料
func TestFindOneProfile_NotFound(t *testing.T) {
	db := setupProfileModelTestDB(t)

	ctx := context.Background()

	found, err := FindOneProfile(ctx, db, 99999)

	require.Error(t, err)
	require.Nil(t, found)
	assert.Equal(t, ErrNotFound, err)
}

// TestFindProfileByUserId 测试根据用户ID查询个人资料
func TestFindProfileByUserId(t *testing.T) {
	db := setupProfileModelTestDB(t)

	userId, _ := createTestUserProfile(t, db)
	ctx := context.Background()

	// 根据用户ID查询
	found, err := FindProfileByUserId(ctx, db, userId)

	require.NoError(t, err)
	require.NotNil(t, found)
	assert.Equal(t, userId, found.UserId)
	assert.Equal(t, "http://example.com/avatar.jpg", found.Avatar)
}

// TestFindProfileByUserId_NotFound 测试查询不存在的用户个人资料
func TestFindProfileByUserId_NotFound(t *testing.T) {
	db := setupProfileModelTestDB(t)

	ctx := context.Background()

	found, err := FindProfileByUserId(ctx, db, 99999)

	require.Error(t, err)
	require.Nil(t, found)
	assert.Equal(t, ErrNotFound, err)
}

// TestUpdateProfile 测试更新个人资料
func TestUpdateProfile(t *testing.T) {
	db := setupProfileModelTestDB(t)

	_, profileId := createTestUserProfile(t, db)
	ctx := context.Background()

	// 获取个人资料
	profile, err := FindOneProfile(ctx, db, profileId)
	require.NoError(t, err)

	// 修改数据
	profile.Avatar = "http://example.com/newavatar.jpg"
	profile.Bio = "Updated bio"

	// 更新
	err = UpdateProfile(ctx, db, profile)

	require.NoError(t, err)

	// 验证更新结果
	updated, err := FindOneProfile(ctx, db, profileId)
	require.NoError(t, err)
	assert.Equal(t, "http://example.com/newavatar.jpg", updated.Avatar)
	assert.Equal(t, "Updated bio", updated.Bio)
}

// TestDeleteProfile 测试删除个人资料
func TestDeleteProfile(t *testing.T) {
	db := setupProfileModelTestDB(t)

	_, profileId := createTestUserProfile(t, db)
	ctx := context.Background()

	// 删除个人资料
	err := DeleteProfile(ctx, db, profileId)

	require.NoError(t, err)

	// 验证个人资料已被删除
	_, err = FindOneProfile(ctx, db, profileId)
	require.Error(t, err)
	assert.Equal(t, ErrNotFound, err)
}

// TestProfile_UserProfileRelation 测试用户与个人资料的关联
func TestProfile_UserProfileRelation(t *testing.T) {
	db := setupProfileModelTestDB(t)
	ctx := context.Background()

	// 创建多个用户
	now := time.Now()
	users := []User{
		{Username: "user1", Email: "user1@example.com", Password: "pass", Status: 1, CreatedAt: now, UpdatedAt: now},
		{Username: "user2", Email: "user2@example.com", Password: "pass", Status: 1, CreatedAt: now, UpdatedAt: now},
		{Username: "user3", Email: "user3@example.com", Password: "pass", Status: 1, CreatedAt: now, UpdatedAt: now},
	}

	for _, u := range users {
		err := db.Create(&u).Error
		require.NoError(t, err)
	}

	// 只为 user1 和 user2 创建个人资料
	profile1 := &Profile{UserId: users[0].Id, Avatar: "avatar1.jpg", Bio: "Bio 1", CreatedAt: now, UpdatedAt: now}
	profile2 := &Profile{UserId: users[1].Id, Avatar: "avatar2.jpg", Bio: "Bio 2", CreatedAt: now, UpdatedAt: now}

	err := db.Create(profile1).Error
	require.NoError(t, err)
	err = db.Create(profile2).Error
	require.NoError(t, err)

	// 验证 user1 有个人资料
	found1, err := FindProfileByUserId(ctx, db, users[0].Id)
	require.NoError(t, err)
	assert.Equal(t, "avatar1.jpg", found1.Avatar)

	// 验证 user2 有个人资料
	found2, err := FindProfileByUserId(ctx, db, users[1].Id)
	require.NoError(t, err)
	assert.Equal(t, "avatar2.jpg", found2.Avatar)

	// 验证 user3 没有个人资料
	found3, err := FindProfileByUserId(ctx, db, users[2].Id)
	require.Error(t, err)
	require.Nil(t, found3)
}

// TestProfile_UniqueUserId 测试用户ID唯一性约束
func TestProfile_UniqueUserId(t *testing.T) {
	db := setupProfileModelTestDB(t)
	ctx := context.Background()

	// 创建用户
	now := time.Now()
	user := &User{
		Username:  "testuser",
		Email:     "test@example.com",
		Password:  "encryptedpassword",
		Status:    1,
		CreatedAt: now,
		UpdatedAt: now,
	}

	err := db.Create(user).Error
	require.NoError(t, err)

	// 创建第一个个人资料
	profile1 := &Profile{
		UserId: user.Id,
		Avatar: "avatar1.jpg",
		Bio:    "Bio 1",
	}

	id, err := InsertProfile(ctx, db, profile1)
	require.NoError(t, err)
	assert.Greater(t, id, int64(0))

	// 尝试为同一用户创建第二个个人资料（应该失败）
	profile2 := &Profile{
		UserId: user.Id,
		Avatar: "avatar2.jpg",
		Bio:    "Bio 2",
	}

	_, err = InsertProfile(ctx, db, profile2)

	// 验证结果 - 应该返回错误（违反唯一性约束）
	require.Error(t, err)
}

// TestProfile_EmptyFields 测试空字段
func TestProfile_EmptyFields(t *testing.T) {
	db := setupProfileModelTestDB(t)
	ctx := context.Background()

	// 创建用户
	now := time.Now()
	user := &User{
		Username:  "testuser",
		Email:     "test@example.com",
		Password:  "encryptedpassword",
		Status:    1,
		CreatedAt: now,
		UpdatedAt: now,
	}

	err := db.Create(user).Error
	require.NoError(t, err)

	// 创建空个人资料
	profile := &Profile{
		UserId: user.Id,
		Avatar: "",
		Bio:    "",
	}

	id, err := InsertProfile(ctx, db, profile)

	require.NoError(t, err)
	assert.Greater(t, id, int64(0))

	// 验证保存成功
	saved, err := FindOneProfile(ctx, db, id)
	require.NoError(t, err)
	assert.Equal(t, "", saved.Avatar)
	assert.Equal(t, "", saved.Bio)
}

// BenchmarkInsertProfile 性能测试
func BenchmarkInsertProfile(b *testing.B) {
	db := setupProfileModelTestDB(&testing.T{})
	ctx := context.Background()

	// 创建测试用户
	now := time.Now()
	user := &User{
		Username:  "testuser",
		Email:     "test@example.com",
		Password:  "encryptedpassword",
		Status:    1,
		CreatedAt: now,
		UpdatedAt: now,
	}

	err := db.Create(user).Error
	if err != nil {
		b.Fatal(err)
	}

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		profile := &Profile{
			UserId: user.Id,
			Avatar: "http://example.com/avatar.jpg",
			Bio:    "Test bio",
		}
		_, _ = InsertProfile(ctx, db, profile)
	}
}

// BenchmarkFindProfileByUserId 性能测试
func BenchmarkFindProfileByUserId(b *testing.B) {
	db := setupProfileModelTestDB(&testing.T{})
	ctx := context.Background()

	// 创建测试用户和个人资料
	now := time.Now()
	user := &User{
		Username:  "testuser",
		Email:     "test@example.com",
		Password:  "encryptedpassword",
		Status:    1,
		CreatedAt: now,
		UpdatedAt: now,
	}

	err := db.Create(user).Error
	if err != nil {
		b.Fatal(err)
	}

	profile := &Profile{
		UserId: user.Id,
		Avatar: "http://example.com/avatar.jpg",
		Bio:    "Test bio",
		CreatedAt: now,
		UpdatedAt: now,
	}

	err = db.Create(profile).Error
	if err != nil {
		b.Fatal(err)
	}

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		_, _ = FindProfileByUserId(ctx, db, user.Id)
	}
}