package repositories

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

type BizRepo struct {
    engine *xorm.Engine
}

func NewBizRepo(engine *xorm.Engine) *BizRepo {
    return &BizRepo{
        engine: engine,
    }
}

func (d *BizRepo) GetPage(m map[string]interface{}) (*viewmodel.PageResult, error) {
    limit     := m["limit"].(int)
    page      := m["page"].(int)
    
    sqlSelect := ` SELECT A.*                 `
    sqlFrom   := ` FROM   biz   AS A          `
    sqlWhere  := ` WHERE  A.deleted_flag = 0  `
    if keywords, ok := m["keywords"]; ok {
        sqlWhere += ` AND A.biz_title like ` + "'%" + fmt.Sprintf("%s", keywords) + "%'"
    }
    
    sqlCount  := ` SELECT COUNT(*)           `
    total, err1 := d.engine.SQL(sqlCount + sqlFrom + sqlWhere).Count(new(datamodel.Biz))
    if err1 != nil {
        return nil, err1
    }
    
    sqlOrderBy := " ORDER BY A.biz_id ASC "
    pageStart  := (page - 1) * limit
    sqlLimit   := fmt.Sprintf(" LIMIT %d OFFSET %d ", limit, pageStart)
    
    datalist   := make([]datamodel.Biz, 0)
    err2 := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy + sqlLimit).Find(&datalist)
    if err2 != nil {
        return nil, err2
    }
    
    pageResult := &viewmodel.PageResult{}
    pageResult.Data     = datalist
    pageResult.Total    = total
    pageResult.PageSize = limit
    pageResult.Page     = page
    return pageResult, nil
}

func (d *BizRepo) GetList(m map[string]interface{}) ([]viewmodel.BizInfo, error) {
    sqlSelect := ` SELECT A.*               `
    sqlFrom   := ` FROM  biz   AS A    `
    sqlWhere  := ` WHERE A.deleted_flag = 0 `
    if keywords, ok := m["keywords"]; ok {
        sqlWhere += ` AND A.biz_title like ` + "'%" + fmt.Sprintf("%s", keywords) + "%'"
    }
    
    sqlOrderBy := " ORDER BY A.biz_id ASC "
    datalist   := make([]viewmodel.BizInfo, 0)
    err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy).Find(&datalist)
    if err != nil {
        return nil, err
    }
    return datalist, nil
}

func (d *BizRepo) GetAll() ([]viewmodel.BizInfo, error) {
    sqlSelect  := ` SELECT A.*               `
    sqlFrom    := ` FROM  biz   AS A    `
    sqlWhere   := ` WHERE A.deleted_flag = 0 `
    sqlOrderBy := " ORDER BY A.biz_id ASC "
    datalist   := make([]viewmodel.BizInfo, 0)
    err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy).Find(&datalist)
    if err != nil {
        return nil, err
    }
    return datalist, nil
}

func (d *BizRepo) GetById(bizId int64) (*viewmodel.BizInfo, error) {
    sqlSelect  := ` SELECT A.*               `
    sqlFrom    := ` FROM  biz   AS A         `
    sqlWhere   := ` WHERE A.deleted_flag = 0 `
    sqlWhere   += fmt.Sprintf(" AND A.biz_id = %d ", bizId)
    
    data := &viewmodel.BizInfo{}
    has, err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere).Get(data)
    if !has || err != nil {
        return nil, err
    } else {
        return data, nil
    }
}

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

func (d *BizRepo) Update(data *datamodel.Biz) error {
    bizId := data.BizId
    
    data.UpdatedAt = time.Now()
    _, err := d.engine.Where("biz_id = ?", bizId).Update(data)
    return err
}

func (d *BizRepo) Delete(m map[string]interface{}) error {
    bizId     := m["bizId"].(int64)
    deletedBy := m["deletedBy"].(int64)
    
    data := &datamodel.Biz{}
    data.DeletedFlag = 1
    data.DeletedBy   = deletedBy
    data.DeletedAt   = time.Now()
    _, err := d.engine.Where("biz_id = ?", bizId).Update(data)
    return err
}