package service

import (
	"errors"
	"fmt"
	"gas-cylinder-api/app/admin/model"
	"gas-cylinder-api/app/admin/service/dto"
	"gas-cylinder-api/common/actions"
	cDto "gas-cylinder-api/common/dto"
	"gas-cylinder-api/common/global"
	common "gas-cylinder-api/common/model"
	"gogs.baozhida.cn/zoie/OAuth-core/service"
	"gorm.io/gorm"
	"time"
)

type Order struct {
	service.Service
}

// GetPage 获取Order列表
func (e *Order) GetPage(c *dto.OrderGetPageReq, list *[]model.Order, count *int64, p *actions.DataPermission) error {
	var err error
	var data model.Order
	err = e.Orm.Model(&data).
		Scopes(
			cDto.MakeCondition(c.GetNeedSearch()),
			cDto.Paginate(c.GetPageSize(), c.GetPageIndex()),
			actions.Permission(data.TableName(), p),
		).
		Preload("Customer").Preload("Store").Preload("User").Preload("Goods").Preload("Spec").
		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 (e *Order) GetDeliveryPage(c *dto.OrderGetDeliveryPageReq, list *[]model.Order, count *int64, p *actions.DataPermission) error {
	var err error
	var data model.Order
	err = e.Orm.Model(&data).
		Scopes(
			cDto.MakeCondition(c.GetNeedSearch()),
			cDto.Paginate(c.GetPageSize(), c.GetPageIndex()),
		).
		Where("user_id = ?", p.UserId).
		Preload("Customer").Preload("Store").Preload("Goods").Preload("Spec").
		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Order对象
func (e *Order) Get(d *dto.OrderGetReq, orderModel *model.Order, p *actions.DataPermission) error {
	err := e.Orm.
		Scopes(actions.Permission(orderModel.TableName(), p)).
		First(orderModel, 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Order对象
func (e *Order) Insert(c *dto.OrderInsertReq) error {
	var err error
	var data model.Order

	tx := e.Orm.Begin()
	defer func() {
		if err != nil {
			tx.Rollback()
		} else {
			tx.Commit()
		}
	}()

	// 添加订单
	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
	return nil

}

// Update 修改Order对象
func (e *Order) Update(c *dto.OrderUpdateReq, p *actions.DataPermission) error {
	var err error

	tx := e.Orm.Begin()
	defer func() {
		if err != nil {
			tx.Rollback()
		} else {
			tx.Commit()
		}
	}()

	var orderModel = model.Order{}
	// 查询订单是否存在
	err = e.Orm.Scopes(actions.Permission(orderModel.TableName(), p)).
		First(&orderModel, 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
	}

	// 订单为未派送才可以取消

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

	c.Id = orderModel.Id

	return nil
}

// Remove 删除Order
func (e *Order) Remove(c *dto.OrderDeleteReq, p *actions.DataPermission) error {
	var err error

	tx := e.Orm.Begin()
	defer func() {
		if err != nil {
			tx.Rollback()
		} else {
			tx.Commit()
		}
	}()

	var orderModel model.Order

	// 查询订单是否存在
	err = e.Orm.Scopes(actions.Permission(orderModel.TableName(), p)).
		First(&orderModel, c.GetId()).Error
	if err != nil {
		e.Log.Errorf("db error: %s", err)
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return nil
		}
		return global.DeleteFailedErr
	}
	if orderModel.State != model.OrderStateOrder && orderModel.State != model.OrderStateCancel {
		err = errors.New(fmt.Sprintf("订单状态为%s，无法删除", model.OrderStateMap[orderModel.State]))
		return err
	}
	db := tx.Delete(&orderModel)

	if err = db.Error; err != nil {
		e.Log.Errorf("db error: %s", err)
		return global.DeleteFailedErr
	}
	if db.RowsAffected == 0 {
		return global.DeleteNotFoundOrNoPermissionErr
	}

	return nil
}
func (e *Order) Cancel(c *dto.OrderCancelReq, p *actions.DataPermission) error {
	var err error

	tx := e.Orm.Begin()
	defer func() {
		if err != nil {
			tx.Rollback()
		} else {
			tx.Commit()
		}
	}()

	var orderModel model.Order

	// 查询订单是否存在
	err = e.Orm.Scopes(actions.Permission(orderModel.TableName(), p)).
		First(&orderModel, 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
	}

	if orderModel.State == model.OrderStateCancel {
		return nil
	}

	if orderModel.State != model.OrderStateOrder {
		return errors.New(fmt.Sprintf("订单状态为%s，禁止取消", model.OrderStateMap[orderModel.State]))
	}

	orderModel.State = model.OrderStateCancel
	orderModel.CancelTime = common.Time(time.Now())
	db := tx.Save(&orderModel)

	if err = db.Error; err != nil {
		e.Log.Errorf("db error: %s", err)
		return global.UpdateFailedErr
	}
	if db.RowsAffected == 0 {
		return global.UpdateNotFoundOrNoPermissionErr
	}

	return nil
}

// Delivery 派单
func (e *Order) Delivery(c *dto.OrderDeliveryReq, p *actions.DataPermission) error {
	var err error

	var orderModel = model.Order{}
	// 查询订单是否存在
	err = e.Orm.Scopes(actions.Permission(orderModel.TableName(), p)).
		First(&orderModel, 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(&orderModel)
	err = e.Orm.Save(&orderModel).Error
	if err != nil {
		e.Log.Errorf("db error: %s", err)
		return global.UpdateFailedErr
	}

	c.Id = orderModel.Id

	return nil
}

// UpdateState 修改订单状态
func (e *Order) UpdateState(c *dto.OrderUpdateStateReq, p *actions.DataPermission) error {
	var err error

	var orderModel = model.Order{}
	// 查询订单是否存在
	err = e.Orm.Scopes(actions.Permission(orderModel.TableName(), p)).
		Preload("User").Preload("Store").Preload("Dept").
		First(&orderModel, 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
	}

	tx := e.Orm.Begin()
	defer func() {
		if err != nil {
			tx.Rollback()
		} else {
			tx.Commit()
		}
	}()

	c.Generate(&orderModel)
	// 配送中
	if c.State == model.OrderStateInDelivery {
		orderModel.DeliveryTime = common.Time(time.Now())
	}
	// 已送达
	if c.State == model.OrderStateArrive {
		orderModel.ArriveTime = common.Time(time.Now())
		err = InsertOperationLogByOptType26Or36(tx, "26", c.ChipUid, orderModel)
		if err != nil {
			e.Log.Errorf("db error: %s", err)
			return global.UpdateFailedErr
		}

	}
	// 已取消
	if c.State == model.OrderStateCancel && orderModel.State == model.OrderStateArrive {
		orderModel.CancelTime = common.Time(time.Now())
		err = InsertOperationLogByOptType26Or36(tx, "36", c.ChipUid, orderModel)
		if err != nil {
			e.Log.Errorf("db error: %s", err)
			return global.UpdateFailedErr
		}
	}

	err = e.Orm.Save(&orderModel).Error
	if err != nil {
		e.Log.Errorf("db error: %s", err)
		return global.UpdateFailedErr
	}

	c.Id = orderModel.Id

	return nil
}