package repositories

import (
	"fmt"
	"time"
	"xorm.io/xorm"
	"xps/datamodel"
    "xps/viewmodel"
)

type PositionRepo struct {
	engine *xorm.Engine
}

func NewPositionRepo(engine *xorm.Engine) *PositionRepo {
	return &PositionRepo{
		engine: engine,
	}
}

func (d *PositionRepo) GetPage(m map[string]interface{}) (*viewmodel.PageResult, error) {
	ocId     := m["ocId"].(int64)
	limit    := m["limit"].(int)
	page     := m["page"].(int)

	sqlSelect := ` SELECT A.*               `
	sqlFrom   := ` FROM   s_position AS A   `
	sqlWhere  := fmt.Sprintf(` WHERE A.deleted_flag = 0 and A.oc_id = %d`, ocId)
	if keywords, ok := m["keywords"]; ok {
		sqlWhere += ` AND A.position_name like ` + "'%" + fmt.Sprintf("%s", keywords) + "%'"
	}

	sqlCount := ` SELECT COUNT(*)   `
	total, err := d.engine.SQL(sqlCount + sqlFrom + sqlWhere).Count()
	if err != nil {
		return nil, err
	}

	pageStart  := (limit - 1) * limit
	sqlOrderBy := " ORDER BY position_id ASC "
	sqlLimit   := fmt.Sprintf(" LIMIT %d OFFSET %d  ", limit, pageStart)
	
	datalist := []viewmodel.PositionInfo{}
	err = d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy + sqlLimit).Find(&datalist)
	if err != nil {
		return nil, err
	}
	
	pageResult := &viewmodel.PageResult{}
	pageResult.Data     = datalist
	pageResult.Total    = total
	pageResult.PageSize = limit
	pageResult.Page     = page
	return pageResult, nil
}

func (d *PositionRepo) GetList(m map[string]interface{}) ([]viewmodel.PositionInfo, error) {
	ocId      := m["ocId"].(int64)

	sqlSelect := ` SELECT A.* `
	sqlFrom   := ` FROM   s_position AS A   `
	sqlWhere  := fmt.Sprintf(` WHERE A.deleted_flag = 0 and A.oc_id = %d`, ocId)
	if keywords, ok := m["keywords"]; ok {
		sqlWhere += ` AND A.position_name like ` + "'%" + fmt.Sprintf("%s", keywords) + "%'"
	}
	sqlOrderBy := " ORDER BY position_id ASC "
	
	datalist := make([]viewmodel.PositionInfo, 0)
	err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy).Find(&datalist)
	if err != nil {
		return nil, err
	} else {
		return datalist, nil
	}
}

func (d *PositionRepo) GetById(ocId int64, positionId int64) (*viewmodel.PositionInfo, error) {
	sqlSelect := ` SELECT A.* `
	sqlFrom   := ` FROM   s_position AS A   `
	sqlWhere  := fmt.Sprintf(` WHERE A.deleted_flag = 0 and A.oc_id = %d`, ocId)
	sqlWhere  += fmt.Sprintf(" AND A.position_id = %d", positionId)
	
	data := &viewmodel.PositionInfo{}
	has, err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere).Get(data)
	if !has || err != nil {
		return nil, err
	} else {
		return data, nil
	}
}

func (d *PositionRepo) Create(data *datamodel.Position) error {
	data.CreatedAt = time.Now()
	_, err := d.engine.Insert(data)
	return err
}

func (d *PositionRepo) Update(data *datamodel.Position) error {
	ocId       := data.OcId
	positionId := data.PositionId
	data.UpdatedAt = time.Now()
	_, err := d.engine.Where("oc_id = ?", ocId).Where("position_id =?", positionId).Update(data)
	return err
}

func (d *PositionRepo) Delete(m map[string]interface{}) error {
	ocId       := m["ocId"].(int64)
	positionId := m["positionId"].(int64)
	deletedBy  := m["deletedBy"].(int64)
	
	data := &datamodel.Position{}
	data.DeletedFlag = 1
	data.DeletedBy   = deletedBy
	data.DeletedAt   = time.Now()
	_, err := d.engine.Where("oc_id = ?", ocId).Where("position_id =?", positionId).Update(data)
	return err
}