package model

import (
	"aps_crm/constvar"
	"aps_crm/pkg/mysqlx"
	"errors"
	"fmt"
	"github.com/shopspring/decimal"
	"gorm.io/gorm"
)

type (
	// ServiceCollectionPlan 收款计划
	ServiceCollectionPlan struct {
		Id               int                           `json:"id" gorm:"column:id;primary_key;AUTO_INCREMENT"`
		CollectionType   int                           `gorm:"column:collection_type;type:tinyint;not null;default 0;comment:类型（1 计划收款日期 2 项目状态）" json:"collectionType"` // 类型（1 计划收款日期 2 项目状态）
		SourceType       constvar.CollectionSourceType `gorm:"column:source_type;type:tinyint;not null;default 0;comment:源单类型（1销售明细2服务合同3销售发票）" json:"sourceType"`       // 源单类型（1销售明细2服务合同3销售发票）
		SourceId         int                           `gorm:"column:source_id;type:int;not null;default 0;comment:源单id" json:"sourceId"`                                // 源单id
		PrincipalId      int                           `gorm:"column:principal_id;type:int;not null;default 0;comment:收款负责人ID" json:"principalId"`                       // 收款负责人ID
		Principal        User                          `gorm:"foreignKey:PrincipalId" json:"principal"`                                                                  // 收款负责人ID
		Term             int                           `gorm:"column:term;type:tinyint;not null;default 0;comment:期次" json:"term"`                                       // 期次
		Percent          decimal.Decimal               `gorm:"column:percent;type:decimal(5,2);not null;default 0.00;comment:收款比例" gorm:"" json:"percent"`               // 比例
		Amount           decimal.Decimal               `gorm:"column:amount;type:decimal(12,2);not null;default '0.00';comment:金额" gorm:"" json:"amount"`                // 金额
		MoneyType        string                        `gorm:"column:money_type;type:varchar(255);not null;default '';comment:币种" json:"moneyType"`                      // 币种
		CollectionDate   string                        `gorm:"column:collection_date;type:varchar(255);not null;default '';comment:计划收款日期" json:"collectionDate"`        // 计划收款日期
		Remark           string                        `gorm:"column:remark;type:varchar(512);not null;default '';comment:备注" json:"remark"`                             // 备注
		Status           constvar.CollectionStatus     `gorm:"column:status;type:tinyint;not null;default '';comment:状态（1未收2部分已收3已收）" json:"status"`                     // 状态（1未收2部分已收3已收）
		AmountReceivable decimal.Decimal               `gorm:"column:amount_receivable;type:decimal(12,2);comment:应收金额" json:"amountReceivable"`                         // 应收金额
		AmountReceived   decimal.Decimal               `gorm:"column:amount_received;type:decimal(12,2);comment:已收金额" json:"amountReceived"`                             // 已收金额
		AmountTotal      decimal.Decimal               `gorm:"column:amount_total;type:decimal(12,2);comment:总额" json:"amountTotal"`                                     // 总额
		FileId           int                           `gorm:"column:file_id;type:int;comment:附件id" json:"fileId"`                                                       // 附件id
	}

	// ServiceCollectionPlanSearch 收款计划搜索条件
	ServiceCollectionPlanSearch struct {
		ServiceCollectionPlan
		Orm         *gorm.DB
		QueryClass  constvar.ServiceCollectionPlanQueryClass
		KeywordType constvar.ServiceCollectionPlanKeywordType
		Keyword     string
		PageNum     int
		PageSize    int
	}
)

func (ServiceCollectionPlan) TableName() string {
	return "collection_plan"
}

func NewServiceCollectionPlanSearch() *ServiceCollectionPlanSearch {
	return &ServiceCollectionPlanSearch{
		Orm: mysqlx.GetDB(),
	}
}

func (slf *ServiceCollectionPlanSearch) build() *gorm.DB {
	var db = slf.Orm.Model(&ServiceCollectionPlan{})
	if slf.Id != 0 {
		db = db.Where("id = ?", slf.Id)
	}

	if slf.SourceId != 0 {
		db = db.Where("source_id = ?", slf.SourceId)
	}

	if slf.SourceType != 0 {
		db = db.Where("source_type = ?", slf.SourceType)
	}

	db = db.Preload("Principal")
	return db
}

func (slf *ServiceCollectionPlanSearch) Create(record *ServiceCollectionPlan) error {
	var db = slf.build()
	return db.Create(record).Error
}

func (slf *ServiceCollectionPlanSearch) CreateBatch(records []*ServiceCollectionPlan) error {
	var db = slf.build()
	return db.Create(records).Error
}

func (slf *ServiceCollectionPlanSearch) Delete() error {
	var db = slf.build()
	return db.Delete(&ServiceCollectionPlan{}).Error
}

func (slf *ServiceCollectionPlanSearch) Update(record *ServiceCollectionPlan) error {
	var db = slf.build()
	return db.Updates(record).Error
}

func (slf *ServiceCollectionPlanSearch) FindAll() ([]*ServiceCollectionPlan, error) {
	var db = slf.build()
	var record = make([]*ServiceCollectionPlan, 0)
	err := db.Find(&record).Error
	return record, err
}

func (slf *ServiceCollectionPlanSearch) SetId(id int) *ServiceCollectionPlanSearch {
	slf.Id = id
	return slf
}

func (slf *ServiceCollectionPlanSearch) SetOrm(tx *gorm.DB) *ServiceCollectionPlanSearch {
	slf.Orm = tx
	return slf
}

func (slf *ServiceCollectionPlanSearch) SetSourceId(id int) *ServiceCollectionPlanSearch {
	slf.SourceId = id
	return slf
}

func (slf *ServiceCollectionPlanSearch) SetSourceType(sourceType constvar.CollectionSourceType) *ServiceCollectionPlanSearch {
	slf.SourceType = sourceType
	return slf
}

func (slf *ServiceCollectionPlanSearch) First() (*ServiceCollectionPlan, error) {
	var db = slf.build()
	var record = new(ServiceCollectionPlan)
	err := db.First(record).Error
	return record, err
}

func (slf *ServiceCollectionPlanSearch) Updates(values interface{}) error {
	var db = slf.build()
	return db.Updates(values).Error
}

func (slf *ServiceCollectionPlanSearch) Save(record *ServiceCollectionPlan) error {
	if record.Id == 0 {
		return errors.New("id为空")
	}
	var db = slf.build()

	if err := db.Save(record).Error; err != nil {
		return fmt.Errorf("save err: %v, record: %+v", err, record)
	}

	return nil
}

func (slf *ServiceCollectionPlanSearch) Find() ([]*ServiceCollectionPlan, int64, error) {
	var db = slf.build()
	var records = make([]*ServiceCollectionPlan, 0)
	var total int64
	if err := db.Count(&total).Error; err != nil {
		return records, total, err
	}
	if slf.PageNum > 0 && slf.PageSize > 0 {
		db = db.Limit(slf.PageSize).Offset((slf.PageNum - 1) * slf.PageSize)
	}

	err := db.Find(&records).Error
	return records, total, err
}

func (slf *ServiceCollectionPlanSearch) UpdateByMap(upMap map[string]interface{}) error {
	var (
		db = slf.build()
	)

	if err := db.Updates(upMap).Error; err != nil {
		return fmt.Errorf("update by map err: %v, upMap: %+v", err, upMap)
	}

	return nil
}

func (slf *ServiceCollectionPlanSearch) UpdateStatusAndAmount(collection *ServiceCollectionPlan, receiveAmount decimal.Decimal) error {
	receivedAmount := collection.AmountReceived.Add(receiveAmount)
	var status constvar.CollectionStatus
	if receiveAmount.GreaterThanOrEqual(collection.AmountTotal) {
		status = constvar.CollectionStatusCollected
	} else {
		status = constvar.CollectionStatusSubCollected
	}
	receivableAmount := collection.AmountTotal.Add(receivedAmount)
	err := slf.SetId(collection.Id).UpdateByMap(map[string]interface{}{
		"status":            status,
		"amount_received":   receivedAmount,
		"amount_receivable": receivableAmount})
	if err != nil {
		return err
	}

	return nil
}

// InitDefaultData 初始化数据
func (slf *ServiceCollectionPlanSearch) InitDefaultData() error {
	var (
		db          = slf.Orm.Table(slf.TableName())
		total int64 = 0
	)
	if err := db.Count(&total).Error; err != nil {
		return err
	}
	if total != 0 {
		return nil
	}
	records := []*ServiceCollectionPlan{}
	return slf.CreateBatch(records)
}