package repositories

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

type BizRuleRepo struct {
    engine *xorm.Engine
}

func NewBizRuleRepo(engine *xorm.Engine) *BizRuleRepo {
    return &BizRuleRepo{
        engine: engine,
    }
}

func (d *BizRuleRepo) GetPage(m map[string]interface{}) (*viewmodel.PageResult, error) {
    limit     := m["limit"].(int)
    page      := m["page"].(int)
    
    sqlSelect := ` SELECT A.*                `
    sqlFrom   := ` FROM   biz_rule   AS A    `
    sqlWhere  := ` WHERE  A.deleted_flag = 0 `
    if keywords, ok := m["keywords"]; ok {
        sqlWhere += ` AND A.rule_title like ` + "'%" + fmt.Sprintf("%s", keywords) + "%'"
    }
    
    sqlCount  := ` SELECT COUNT(*)           `
    total, err1 := d.engine.SQL(sqlCount + sqlFrom + sqlWhere).Count(new(datamodel.BizRule))
    if err1 != nil {
        return nil, err1
    }
    
    sqlOrderBy := " ORDER BY A.rule_id ASC "
    pageStart  := (page - 1) * limit
    sqlLimit   := fmt.Sprintf(" LIMIT %d OFFSET %d ", limit, pageStart)
    
    datalist   := make([]datamodel.BizRule, 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 *BizRuleRepo) GetList(m map[string]interface{}) ([]viewmodel.BizRuleInfo, error) {
    sqlSelect := ` SELECT A.*               `
    sqlFrom   := ` FROM  biz_rule   AS A    `
    sqlWhere  := ` WHERE A.deleted_flag = 0 `
    if keywords, ok := m["keywords"]; ok {
        sqlWhere += ` AND A.rule_title like ` + "'%" + fmt.Sprintf("%s", keywords) + "%'"
    }
    
    sqlOrderBy := " ORDER BY A.rule_id ASC "
    datalist   := make([]viewmodel.BizRuleInfo, 0)
    err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy).Find(&datalist)
    if err != nil {
        return nil, err
    }
    return datalist, nil
}

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

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

func (d *BizRuleRepo) Update(data *datamodel.BizRule) error {
    ruleId := data.RuleId
    
    data.UpdatedAt = time.Now()
    _, err := d.engine.Where("rule_id = ?", ruleId).Update(data)
    return err
}

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