package repository

import (
	"fmt"
	"github.com/pkg/errors"
	"gorm.io/gorm"
	"sghgogs.com/sghblog/authorization-service/domain/model/base"
	req "sghgogs.com/sghblog/authorization-service/domain/model/request"
	pb "sghgogs.com/sghblog/authorization-service/proto"
)

func (u *Repository) IsAdminPermissionExists(identifier interface{}) (bool, error) {
	var user req.AdminPermission
	if err := u.db.Where("id = ? OR name = ?", identifier, identifier).First(&user).Error; err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return false, nil // 记录不存在，账号不存在
		}
		return false, err // 发生其他错误
	}
	return true, nil
}

func (u *Repository) GetAdminPermissionList(query *pb.GetAdminPermissionListRequest) ([]req.AdminPermission, int64, error) {
	permissions := make([]req.AdminPermission, 0)
	var totalCount int64
	tx := u.db.Model(&req.AdminPermission{}).Order("id desc").
		Preload("Roles", "status = ?", pb.StatusEnum_ENABLED)
	if query.Keyword != "" {
		tx.Where("name = ?", query.Keyword)
	}
	if base.IsStatusEnum(query.Status) {
		tx.Where("status = ?", query.Status)
	}
	tx.Count(&totalCount)
	return permissions, totalCount, tx.Limit(int(query.PageSize)).Offset(int((query.Page - 1) * query.PageSize)).Find(&permissions).Error
}

func (u *Repository) GetAdminPermissionAll() ([]req.AdminPermission, error) {
	var permissions []req.AdminPermission
	return permissions, u.db.Model(&req.AdminPermission{}).Where("status = ?", pb.StatusEnum_ENABLED).Find(&permissions).Error
}

func (u *Repository) GetAdminPermission(query *pb.GetAdminPermissionRequest) (req.AdminPermission, error) {
	var permission req.AdminPermission
	return permission, u.db.
		Model(req.AdminPermission{}).Where("id = ?", query.Id).
		Preload("Roles", "status = ?", pb.StatusEnum_ENABLED).
		First(&permission).Error
}

func (u *Repository) CreateAdminPermission(permission req.AdminPermission, roles []int64) error {
	// 开始事务
	tx := u.db.Begin()
	// 错误处理
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
		}
	}()
	if err := tx.Create(&permission).Error; err != nil {
		tx.Rollback()
		return err
	}
	if len(roles) > 0 {
		if _, err := u.getAdminPermissionValidIDs(roles); err != nil {
			tx.Rollback()
			return err
		}
		permissionRoles := make([]req.AdminRole, 0)
		for _, ID := range roles {
			permissionRoles = append(permissionRoles, req.AdminRole{ID: ID})
		}
		if err := tx.Model(&permission).Association("Roles").Append(&permissionRoles); err != nil {
			tx.Rollback()
			return err
		}
	}
	return tx.Commit().Error
}

func (u *Repository) UpdateAdminPermission(permissionId int64, reqPermission map[string]interface{}, reqRoles []int64) error {
	fmt.Println("reqPermission", reqPermission)
	fmt.Println("reqRoles", reqRoles)
	// 开始事务
	tx := u.db.Begin()
	// 错误处理
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
		}
	}()
	var permission req.AdminPermission
	if err := tx.First(&permission, permissionId).Error; err != nil {
		tx.Rollback()
		return err
	}
	if err := tx.Model(&permission).Association("Roles").Clear(); err != nil {
		tx.Rollback()
		return err
	}
	if len(reqRoles) > 0 {
		if _, err := u.getAdminRoleValidIDs(reqRoles); err != nil {
			tx.Rollback()
			return err
		}
		roles := make([]req.AdminRole, 0)
		for _, ID := range reqRoles {
			roles = append(roles, req.AdminRole{ID: ID})
		}
		if err := tx.Model(&permission).Association("Roles").Append(&roles); err != nil {
			tx.Rollback()
			return err
		}
	}
	if err := tx.Model(&permission).Updates(reqPermission).Error; err != nil {
		tx.Rollback()
		return err
	}
	return tx.Commit().Error
}

func (u *Repository) DeleteAdminPermission(permissionId int64) error {
	// 开始事务
	tx := u.db.Begin()
	// 错误处理
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
		}
	}()
	var permission req.AdminPermission
	// 1.查询角色
	if err := tx.First(&permission, permissionId).Error; err != nil {
		tx.Rollback()
		return err
	}
	// 2 删除关联用户
	if err := tx.Model(&permission).Association("Roles").Clear(); err != nil {
		tx.Rollback()
		return err
	}

	// 4. 彻底删除
	if err := tx.Model(&req.AdminPermission{}).Delete(&req.AdminPermission{
		ID: permissionId,
	}).Error; err != nil {
		tx.Rollback()
		return err
	}
	return tx.Commit().Error
}

func (u *Repository) ToggleAdminPermission(query *pb.ToggleAdminPermissionRequest) error {
	// 1. 开启事务
	tx := u.db.Begin()
	// 错误处理
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
		}
	}()
	var permission req.AdminPermission
	// 1.查询角色
	if err := tx.First(&permission, query.PermissionId).Error; err != nil {
		tx.Rollback()
		return err
	}
	if query.Status == pb.StatusEnum_DELETED {
		// 1.1删除关联角色
		if err := tx.Model(&permission).Association("Roles").Clear(); err != nil {
			tx.Rollback()
			return err
		}
	}
	// enum
	// 2. 更新状态
	if err := tx.Model(&req.AdminPermission{}).Where("id = ?", query.PermissionId).Updates(map[string]interface{}{
		"status": query.Status,
	}).Error; err != nil {
		tx.Rollback()
		return err
	}
	return tx.Commit().Error
}