package testutil

import (
	"context"
	"testing"
	"time"

	"github.com/break/junhong_cmp_fiber/internal/model"
	"github.com/break/junhong_cmp_fiber/pkg/auth"
	"github.com/break/junhong_cmp_fiber/pkg/constants"
	"github.com/redis/go-redis/v9"
	"github.com/stretchr/testify/require"
	"golang.org/x/crypto/bcrypt"
	"gorm.io/gorm"
)

// CreateTestAccount 创建测试账号
// userType: 1=超级管理员, 2=平台用户, 3=代理账号, 4=企业账号
func CreateTestAccount(t *testing.T, db *gorm.DB, username, password string, userType int, shopID, enterpriseID *uint) *model.Account {
	t.Helper()

	hashedPassword, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
	require.NoError(t, err)

	phone := "13800000000"
	if len(username) >= 8 {
		phone = "138" + username[len(username)-8:]
	} else {
		phone = "138" + username + "00000000"
		if len(phone) > 11 {
			phone = phone[:11]
		}
	}

	account := &model.Account{
		BaseModel: model.BaseModel{
			Creator: 1,
			Updater: 1,
		},
		Username:     username,
		Phone:        phone,
		Password:     string(hashedPassword),
		UserType:     userType,
		ShopID:       shopID,
		EnterpriseID: enterpriseID,
		Status:       1,
	}

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

	return account
}

// GenerateTestToken 为测试账号生成 token
func GenerateTestToken(t *testing.T, rdb *redis.Client, account *model.Account, device string) (accessToken, refreshToken string) {
	t.Helper()

	ctx := context.Background()

	var shopID, enterpriseID uint
	if account.ShopID != nil {
		shopID = *account.ShopID
	}
	if account.EnterpriseID != nil {
		enterpriseID = *account.EnterpriseID
	}

	tokenInfo := &auth.TokenInfo{
		UserID:       account.ID,
		UserType:     account.UserType,
		ShopID:       shopID,
		EnterpriseID: enterpriseID,
		Username:     account.Username,
		Device:       device,
		IP:           "127.0.0.1",
	}

	tokenManager := auth.NewTokenManager(rdb, 24*time.Hour, 7*24*time.Hour)
	accessToken, refreshToken, err := tokenManager.GenerateTokenPair(ctx, tokenInfo)
	require.NoError(t, err)

	return accessToken, refreshToken
}

// CreateSuperAdmin 创建或获取超级管理员测试账号
func CreateSuperAdmin(t *testing.T, db *gorm.DB) *model.Account {
	t.Helper()

	var existing model.Account
	err := db.Where("user_type = ?", constants.UserTypeSuperAdmin).First(&existing).Error
	if err == nil {
		return &existing
	}

	return CreateTestAccount(t, db, "superadmin", "password123", constants.UserTypeSuperAdmin, nil, nil)
}

// CreatePlatformUser 创建平台用户测试账号
func CreatePlatformUser(t *testing.T, db *gorm.DB) *model.Account {
	t.Helper()
	return CreateTestAccount(t, db, "platformuser", "password123", constants.UserTypePlatform, nil, nil)
}

// CreateAgentUser 创建代理账号测试账号
func CreateAgentUser(t *testing.T, db *gorm.DB, shopID uint) *model.Account {
	t.Helper()
	return CreateTestAccount(t, db, "agentuser", "password123", constants.UserTypeAgent, &shopID, nil)
}

// CreateEnterpriseUser 创建企业账号测试账号
func CreateEnterpriseUser(t *testing.T, db *gorm.DB, enterpriseID uint) *model.Account {
	t.Helper()
	return CreateTestAccount(t, db, "enterpriseuser", "password123", constants.UserTypeEnterprise, nil, &enterpriseID)
}

// CreateTestShop 创建测试商户
func CreateTestShop(t *testing.T, db *gorm.DB, name, code string, level int, parentID *uint) *model.Shop {
	t.Helper()

	shop := &model.Shop{
		BaseModel: model.BaseModel{
			Creator: 1,
			Updater: 1,
		},
		ShopName: name,
		ShopCode: code,
		Level:    level,
		Status:   1,
	}

	if parentID != nil {
		shop.ParentID = parentID
	}

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

	return shop
}

// SetupAuthMiddleware 设置认证中间件（用于集成测试）
func SetupAuthMiddleware(t *testing.T, tokenManager *auth.TokenManager, allowedUserTypes []int) func(token string) bool {
	t.Helper()

	return func(token string) bool {
		ctx := context.Background()
		tokenInfo, err := tokenManager.ValidateAccessToken(ctx, token)
		if err != nil {
			return false
		}

		// 检查用户类型
		if len(allowedUserTypes) > 0 {
			allowed := false
			for _, userType := range allowedUserTypes {
				if tokenInfo.UserType == userType {
					allowed = true
					break
				}
			}
			if !allowed {
				return false
			}
		}

		return true
	}
}