package repository

import (
	"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) GetAdminUser(userId int64) (req.AdminUser, error) {
	var user req.AdminUser
	return user, u.db.Where("id = ? ", userId).
		Preload("Roles", "status = ?", pb.StatusEnum_ENABLED).
		Preload("Teams", "status = ?", pb.StatusEnum_ENABLED).
		First(&user).Error
}

func (u *Repository) GetAdminUserFind(name string) (req.AdminUser, error) {
	var user req.AdminUser
	return user, u.db.Where("username = ?", name).First(&user).Error
}

func (u *Repository) RetrieveEnabledUsers() ([]req.AdminUser, error) {
	users := make([]req.AdminUser, 0)
	return users, u.db.Model(req.AdminUser{}).
		Order("id desc").
		Select("ID", "Username").
		Where("status = ?", pb.StatusEnum_ENABLED).
		Find(&users).Error
}

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

func (u *Repository) CreateAdminUser(user *req.AdminUser, adminRoles []int64, adminTeams []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(&user).Error; err != nil {
		tx.Rollback()
		return err
	}
	// 角色关联
	if len(adminRoles) > 0 {
		if _, err := u.getAdminRoleValidIDs(adminRoles); err != nil {
			tx.Rollback()
			return err
		}
		roles := make([]req.AdminRole, 0)
		for _, ID := range adminRoles {
			roles = append(roles, req.AdminRole{ID: ID})
		}
		if err := tx.Model(&user).Association("Roles").Append(&roles); err != nil {
			tx.Rollback()
			return err
		}
	}

	if len(adminTeams) > 0 {
		if _, err := u.getAdminTeamValidIDs(adminTeams); err != nil {
			tx.Rollback()
			return err
		}
		teams := make([]req.AdminTeam, 0)
		for _, ID := range adminTeams {
			teams = append(teams, req.AdminTeam{ID: ID})
		}
		if err := tx.Model(&user).Association("Teams").Append(&teams); err != nil {
			tx.Rollback()
			return err
		}
	}

	return tx.Commit().Error
}

func (u *Repository) IsAdminUserExists(identifier interface{}) (bool, error) {
	var user req.AdminUser
	if err := u.db.Where("id = ? OR username = ?", 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) UpdateAdminUser(updateUser *pb.UpdateAdminUserRequest) error {
	// updateUser.
	// 1. 开启事务
	tx := u.db.Begin()
	// 错误处理
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
		}
	}()
	var user req.AdminUser
	// 1.查询角色
	if err := tx.First(&user, updateUser.Id).Error; err != nil {
		tx.Rollback()
		return err
	}
	if err := tx.Model(&user).Association("Teams").Clear(); err != nil {
		tx.Rollback()
		return err
	}
	if len(updateUser.Teams) > 0 {
		if _, err := u.getAdminTeamValidIDs(updateUser.Teams); err != nil {
			tx.Rollback()
			return err
		}
		teams := make([]req.AdminTeam, 0)
		for _, ID := range updateUser.Teams {
			teams = append(teams, req.AdminTeam{
				ID: ID,
			})
		}
		if err := tx.Model(&user).Association("Teams").Append(&teams); err != nil {
			tx.Rollback()
			return err
		}
	}
	if err := tx.Model(&user).Association("Roles").Clear(); err != nil {
		tx.Rollback()
		return err
	}
	if len(updateUser.Roles) > 0 {
		if _, err := u.getAdminRoleValidIDs(updateUser.Roles); err != nil {
			tx.Rollback()
			return err
		}
		// 移除关联
		roles := make([]req.AdminRole, 0)
		for _, ID := range updateUser.Roles {
			roles = append(roles, req.AdminRole{
				ID: ID,
			})
		}
		// 重新关联
		if err := tx.Model(&user).Association("Roles").Append(&roles); err != nil {
			tx.Rollback()
			return err
		}
	}
	if err := tx.Model(&user).Updates(map[string]interface{}{
		"phone_number": updateUser.PhoneNumber,
		"email":        updateUser.Email,
		"avatar":       updateUser.Avatar,
	}).Error; err != nil {
		tx.Rollback()
		return err
	}
	return tx.Commit().Error
}

func (u *Repository) DeleteAdminUser(userId int64) error {
	// 1. 开启事务
	tx := u.db.Begin()
	// 错误处理
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
		}
	}()
	var user req.AdminUser
	// 1.查询角色
	if err := tx.First(&user, userId).Error; err != nil {
		tx.Rollback()
		return err
	}
	if err := tx.Model(&user).Association("Roles").Clear(); err != nil {
		tx.Rollback()
		return err
	}
	// 1.2移除关联团队
	if err := tx.Model(&user).Association("Teams").Clear(); err != nil {
		tx.Rollback()
		return err
	}
	if err := tx.Model(&req.AdminUser{}).Delete(&req.AdminUser{
		ID: userId,
	}).Error; err != nil {
		tx.Rollback()
		return err
	}
	return tx.Commit().Error
}

func (u *Repository) ToggleAdminUser(adminUser *pb.ToggleAdminUserRequest) error {
	// 1. 开启事务
	tx := u.db.Begin()
	// 错误处理
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
		}
	}()
	var user req.AdminUser
	// 1.查询角色
	if err := tx.First(&user, adminUser.UserId).Error; err != nil {
		tx.Rollback()
		return err
	}
	if adminUser.Status == pb.StatusEnum_DELETED {
		// 1.1删除关联角色
		if err := tx.Model(&user).Association("Roles").Clear(); err != nil {
			tx.Rollback()
			return err
		}
		// 1.2移除关联团队
		if err := tx.Model(&user).Association("Teams").Clear(); err != nil {
			tx.Rollback()
			return err
		}
	}
	// enum
	// 2. 更新状态
	if err := tx.Model(&req.AdminUser{}).Where("id = ?", adminUser.UserId).Updates(map[string]interface{}{
		"status": adminUser.Status,
	}).Error; err != nil {
		tx.Rollback()
		return err
	}
	return tx.Commit().Error
}