package service

import (
	"cold-delivery/common/actions"
	cDto "cold-delivery/common/dto"
	"cold-delivery/common/global"
	"errors"
	"gogs.baozhida.cn/zoie/OAuth-core/service"
	"gorm.io/gorm"
	"gorm.io/gorm/clause"

	"cold-delivery/app/admin/model"
	"cold-delivery/app/admin/service/dto"
	"gogs.baozhida.cn/zoie/OAuth-core/pkg"
)

type Company struct {
	service.Service
}

// GetPage 获取Address列表
func (e *Company) GetPage(c *dto.CompanyGetPageReq, list *[]model.SysDept, count *int64) error {
	var err error
	var data model.SysDept

	err = e.Orm.Model(&data).
		Scopes(
			cDto.MakeCondition(c.GetNeedSearch()),
			cDto.Paginate(c.GetPageSize(), c.GetPageIndex()),
		).
		Find(list).Limit(-1).Offset(-1).
		Count(count).Error
	if err != nil {
		e.Log.Errorf("db error: %s", err)
		return global.GetFailedErr
	}
	return nil
}

func CompanyIdScopes(id int) func(db *gorm.DB) *gorm.DB {

	return func(db *gorm.DB) *gorm.DB {
		if id == 0 {
			return db
		}
		return db.Where("id = ? ", id)
	}
}
func (e *Company) GetAll(c *dto.CompanyGetAllReq, list *[]model.SysDept, count *int64, p *actions.DataPermission) error {
	var err error
	var data model.SysDept

	err = e.Orm.Model(&data).
		Scopes(
			CompanyIdScopes(p.DeptId),
			cDto.MakeCondition(c.GetNeedSearch()),
		).
		Find(list).Limit(-1).Offset(-1).
		Count(count).Error
	if err != nil {
		e.Log.Errorf("db error: %s", err)
		return global.GetFailedErr
	}
	return nil
}

// Get 获取SysDept对象
func (e *Company) Get(d *dto.CompanyGetReq, deptModel *model.SysDept) error {
	err := e.Orm.
		First(deptModel, d.GetId()).Error
	if err != nil {
		e.Log.Errorf("db error: %s", err)
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return global.GetNotFoundOrNoPermissionErr
		}
		return global.GetFailedErr
	}
	return nil
}

// Insert 创建SysDept对象
func (e *Company) Insert(c *dto.CompanyInsertReq) error {
	var err error
	var data model.SysDept
	tx := e.Orm.Debug().Begin()
	defer func() {
		if err != nil {
			tx.Rollback()
		} else {
			tx.Commit()
		}
	}()

	var i int64
	err = e.Orm.Model(&data).Where("name = ?", c.Name).Count(&i).Error
	if err != nil {
		e.Log.Errorf("db error: %s", err)
		return global.CreateFailedErr
	}
	if i > 0 {
		err = errors.New("公司名称已存在！")
		e.Log.Errorf("db error: %s", err)
		return err
	}

	c.Generate(&data)
	err = tx.Create(&data).Error
	if err != nil {
		e.Log.Errorf("db error: %s", err)
		return global.CreateFailedErr
	}

	c.Id = data.Id
	deptPath := pkg.IntToString(data.Id) + "/"
	if data.ParentId != 0 {
		var deptP model.SysDept
		tx.First(&deptP, data.ParentId)
		deptPath = deptP.Path + deptPath
	} else {
		deptPath = "/0/" + deptPath
	}
	var mp = map[string]string{}
	mp["path"] = deptPath

	err = tx.Model(&data).Update("path", deptPath).Error
	if err != nil {
		e.Log.Errorf("db error: %s", err)
		return global.CreateFailedErr
	}
	return nil
}

// Update 修改SysDept对象
func (e *Company) Update(c *dto.CompanyUpdateReq) error {
	var err error
	var deptModel = model.SysDept{}
	tx := e.Orm.Debug().Begin()
	defer func() {
		if err != nil {
			tx.Rollback()
		} else {
			tx.Commit()
		}
	}()

	err = tx.First(&deptModel, c.GetId()).Error
	if err != nil {
		e.Log.Errorf("db error: %s", err)
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return global.UpdateNotFoundOrNoPermissionErr
		}
		return global.UpdateFailedErr
	}

	c.Generate(&deptModel)

	DeptPath := pkg.IntToString(deptModel.Id) + "/"
	if deptModel.ParentId != 0 {
		var DeptP model.SysDept
		tx.First(&DeptP, deptModel.ParentId)
		DeptPath = DeptP.Path + DeptPath
	} else {
		DeptPath = "/0/" + DeptPath
	}
	deptModel.Path = DeptPath
	db := tx.Save(&deptModel)
	if err = db.Error; err != nil {
		e.Log.Errorf("UpdateSysDept error: %s", err)
		return err
	}
	return nil
}

// Remove 删除SysDept
// 删除部门 同时删除其子部门、部门下的用户
func (e *Company) Remove(d *dto.CompanyDeleteReq, p *actions.DataPermission) error {
	var err error

	tx := e.Orm.Begin()
	defer func() {
		if err != nil {
			tx.Rollback()
		} else {
			tx.Commit()
		}
	}()
	var dept model.SysDept
	err = e.Orm.
		First(&dept, d.GetId()).Error
	if err != nil {
		e.Log.Errorf("db error: %s", err)
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return global.GetNotFoundOrNoPermissionErr
		}
		return global.DeleteFailedErr
	}

	var deptList = make([]model.SysDept, 0)
	var deptIds = make([]int, 0)
	tx.Where("path like ?", dept.Path+"%").Find(&deptList)

	// 获取部门及其子部门下ID
	for _, v := range deptList {
		deptIds = append(deptIds, v.Id)
	}

	db := tx.Select(clause.Associations).Delete(&deptList)
	if err = db.Error; err != nil {
		e.Log.Errorf("Delete error: %s", err)
		return global.DeleteFailedErr
	}

	if db.RowsAffected == 0 {
		return global.DeleteNotFoundOrNoPermissionErr
	}
	// 删除部门下的用户
	dbUser := tx.Where("dept_id in (?)", deptIds).Delete(&model.SysUser{})
	if err = dbUser.Error; err != nil {
		e.Log.Errorf("Delete User error: %s", err)
		return global.DeleteFailedErr
	}

	return nil
}