package repository

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

type WfDefRepo struct {
    engine *xorm.Engine
}

func NewWfDefRepo(engine *xorm.Engine) *WfDefRepo {
    return &WfDefRepo{
        engine: engine,
    }
}

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

    sqlSelect := ` SELECT A.wf_def_id,
                            A.wf_def_title,
                            A.wf_def_desc      `
    sqlFrom := ` FROM   wf_def       AS A  `
    sqlWhere := ` WHERE  A.deleted_flag = 0 `

    if wfDefId, ok := m["wfDefId"]; ok {
        sqlWhere += fmt.Sprintf(" AND A.wf_def_id = %d ", wfDefId)
    }
    if keywords, ok := m["keywords"]; ok {
        sqlWhere += ` AND A.wf_def_title like ` + "'%" + fmt.Sprintf("%s", keywords) + "%'"
    }

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

    sqlOrderBy := " ORDER BY A.wf_def_id ASC "
    pageStart := (limit - 1) * limit
    sqlLimit := fmt.Sprintf(" LIMIT %d OFFSET %d ", limit, pageStart)

    datalist := make([]viewmodel.WfDefInfo, 0)
    err = d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy + sqlLimit).Find(&datalist)
    if err != nil {
        return nil, err
    }

    pageResult := &common.PageResult{}
    pageResult.Data = datalist
    pageResult.Total = total
    pageResult.PageSize = limit
    pageResult.Page = page
    return pageResult, nil
}

func (d *WfDefRepo) GetList(m map[string]interface{}) ([]viewmodel.WfDefInfo, error) {
    sqlSelect := ` SELECT A.wf_def_id,
                            A.wf_def_title,
                            A.wf_def_desc      `
    sqlFrom := ` FROM   wf_def       AS A  `
    sqlWhere := ` WHERE  A.deleted_flag = 0 `

    if wfDefId, ok := m["wfDefId"]; ok {
        sqlWhere += fmt.Sprintf(" AND A.wf_def_id = %d ", wfDefId)
    }
    if keywords, ok := m["keywords"]; ok {
        sqlWhere += ` AND A.wf_def_title like ` + "'%" + fmt.Sprintf("%s", keywords) + "%'"
    }

    sqlOrderBy := " ORDER BY A.wf_def_id ASC "
    datalist := make([]viewmodel.WfDefInfo, 0)
    err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy).Find(&datalist)
    if err != nil {
        return nil, err
    } else {
        return datalist, nil
    }
}

func (d *WfDefRepo) GetById(wfDefId int64) (*viewmodel.WfDefInfo, error) {
    sqlSelect := ` SELECT A.wf_def_id,
                            A.wf_def_title,
                            A.wf_def_desc      `
    sqlFrom := ` FROM   wf_def       AS A  `
    sqlWhere := ` WHERE  A.deleted_flag = 0 `
    sqlWhere += fmt.Sprintf(" AND A.wf_def_id = %d ", wfDefId)

    data := &viewmodel.WfDefInfo{}
    has, err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere).Get(data)
    if !has || err != nil {
        return nil, err
    } else {
        return data, nil
    }
}

func (d *WfDefRepo) Create(data *datamodel.WfDef) error {
    _, err := d.engine.Insert(data)
    return err
}

func (d *WfDefRepo) Update(data *datamodel.WfDef) error {
    wfDefId := data.WfDefId
    data.UpdatedAt = time.Now()

    _, err := d.engine.
        Where("wf_def_id = ?", wfDefId).
        Update(data)

    return err
}

func (d *WfDefRepo) Delete(m map[string]interface{}) error {
    wfDefId := m["wfDefId"].(int64)
    deletedBy := m["deletedBy"].(int64)

    data := &datamodel.WfDef{}
    data.DeletedFlag = 1
    data.DeletedBy = deletedBy
    data.DeletedAt = time.Now()
    _, err := d.engine.
        Where("wf_def_id = ?", wfDefId).
        Update(data)
    return err
}