package repository

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

type ArtCatRepo struct {
    engine *xorm.Engine
}

func NewArtCatRepo(engine *xorm.Engine) *ArtCatRepo {
    return &ArtCatRepo{
        engine: engine,
    }
}

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

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

    sqlCount := ` SELECT COUNT(*)            `
    total, err1 := d.engine.SQL(sqlCount + sqlFrom + sqlWhere).Count(new(datamodel.ArtCat))
    if err1 != nil {
        return nil, err1
    }

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

    datalist := make([]datamodel.ArtCat, 0)
    err2 := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy + sqlLimit).Find(&datalist)
    if err2 != nil {
        return nil, err2
    }

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

func (d *ArtCatRepo) GetList(m map[string]interface{}) ([]viewmodel.ArtCatInfo, error) {
    sqlSelect   := ` SELECT A.*                `
    sqlFrom     := ` FROM  art_cat AS A        `
    sqlWhere    := ` WHERE A.deleted_flag = 0  `
    if ocId, ok := m["ocId"]; ok {
        sqlWhere += fmt.Sprintf(" AND A.oc_id = %d ", ocId)
    }
    if artCatId, ok := m["artCatId"]; ok {
        sqlWhere += fmt.Sprintf(" AND A.art_cat_id = %d ", artCatId)
    }
    if keywords, ok := m["keywords"]; ok {
        sqlWhere += ` AND   A.art_cat_title like ` + "'%" + fmt.Sprintf("%s", keywords) + "%'"
    }

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

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

func (d *ArtCatRepo) GetListById(ocId int64) ([]viewmodel.ArtCatInfo, error) {
    sqlSelect   := ` SELECT A.*                `
    sqlFrom     := ` FROM  art_cat AS A        `
    sqlWhere    := ` WHERE A.deleted_flag = 0  `
    sqlWhere    += fmt.Sprintf(" AND A.oc_id = %d ", ocId)
    sqlOrderBy  := " ORDER BY A.oc_id, A.art_cat_id "
    datalist := make([]viewmodel.ArtCatInfo, 0)
    err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy).Find(&datalist)
    if err != nil {
        return nil, err
    } else {
        return datalist, nil
    }
}

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

func (d *ArtCatRepo) Update(data *datamodel.ArtCat) error {
    artCatId := data.ArtCatId

    data.UpdatedAt = time.Now()
    _, err := d.engine.Where("art_cat_id = ?", artCatId).Update(data)
    return err
}

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

    data := &datamodel.ArtCat{}
    data.DeletedFlag = 1
    data.DeletedBy = deletedBy
    data.DeletedAt = time.Now()
    _, err := d.engine.
        Where("oc_id = ?", ocId).
        Where("art_cat_id = ?", artCatId).
        Update(data)
    return err
}

func (d *ArtCatRepo) IncrementLeft(ocId int64, steps int64, nodeLeft int64) error {
    sql := fmt.Sprintf("UPDATE art_cat SET node_left = node_left + %d  WHERE oc_id =%d AND node_left >= %d AND deleted_flag = 0", steps, ocId, nodeLeft)
    _, err := d.engine.Exec(sql)

    return err
}

func (d *ArtCatRepo) IncrementRight(ocId int64, steps int64, nodeRight int64) error {
    sql := fmt.Sprintf("UPDATE art_cat SET node_right = node_right + %d WHERE oc_id = %d AND node_right >= %d AND deleted_flag = 0", steps, ocId, nodeRight)
    _, err := d.engine.Exec(sql)
    return err
}

func (d *ArtCatRepo) DecrementLeft(ocId int64, steps int64, nodeLeft int64) error {
    sql := fmt.Sprintf("UPDATE art_cat SET node_left = node_left - %d  WHERE oc_id =%d AND node_left > %d AND deleted_flag = 0", steps, ocId, nodeLeft)
    _, err := d.engine.Exec(sql)
    return err
}

func (d *ArtCatRepo) DecrementRight(ocId int64, steps int64, nodeRight int64) error {
    sql := fmt.Sprintf("UPDATE art_cat SET node_right = node_right - %d WHERE oc_id =%d AND node_right > %d AND deleted_flag = 0", steps, ocId, nodeRight)
    _, err := d.engine.Exec(sql)
    return err
}

func (d *ArtCatRepo) BatchDelete(ocId, nodeLeft, nodeRight int64) error {
    sql := fmt.Sprintf("DELETE FROM art_cat WHERE oc_id = %d AND node_left >= %d AND node_right <= %d ", ocId, nodeLeft, nodeRight)
    _, err := d.engine.Exec(sql)
    return err
}