package repository

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

type DocDirRepo struct {
    engine *xorm.Engine
}

func NewDocDirRepo(engine *xorm.Engine) *DocDirRepo {
    return &DocDirRepo{
        engine: engine,
    }
}

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

    sqlSelect := ` SELECT     A.oc_id,
                                A.dir_id,
                                A.dir_title,
                                A.dir_desc,
                                A.parent_id,
                                A.is_fixed,
                                A.node_left,
                                A.node_right,
                                A.node_level,
                                A.is_leaf           `
    sqlFrom := ` FROM       doc_dir   AS A      `
    sqlWhere := ` WHERE      A.deleted_flag = 0  `
    if ocId, ok := m["ocId"]; ok {
        sqlWhere += fmt.Sprintf(" AND A.oc_id = %d ", ocId)
    }
    if dirId, ok := m["dirId"]; ok {
        sqlWhere += fmt.Sprintf(" AND A.dir_id = %d ", dirId)
    }
    if keywords, ok := m["keywords"]; ok {
        sqlWhere += " AND A.dir_title like '%" + fmt.Sprintf("%s", keywords) + "%' "
    }

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

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

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

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

func (d *DocDirRepo) GetList(m map[string]interface{}) ([]viewmodel.DocDirInfo, error) {
    sqlSelect := ` SELECT     A.oc_id,
                                A.dir_id,
                                A.dir_title,
                                A.dir_desc,
                                A.parent_id,
                                A.is_fixed,
                                A.node_left,
                                A.node_right,
                                A.node_level,
                                A.is_leaf           `
    sqlFrom := ` FROM       doc_dir AS A        `
    sqlWhere := ` WHERE      A.deleted_flag = 0  `
    if ocId, ok := m["ocId"]; ok {
        sqlWhere += fmt.Sprintf(" AND A.oc_id = %d ", ocId)
    }
    if dirId, ok := m["dirId"]; ok {
        sqlWhere += fmt.Sprintf(" AND A.dir_id = %d ", dirId)
    }
    nodeLeft, ok1 := m["nodeLeft"]
    nodeRight, ok2 := m["nodeRight"]
    if ok1 && ok2 {
        sqlWhere += fmt.Sprintf(" AND A.node_left > %d", nodeLeft)
        sqlWhere += fmt.Sprintf(" AND A.node_right < %d", nodeRight)
    }
    if keywords, ok := m["keywords"]; ok {
        sqlWhere += " AND A.dir_title like '%" + fmt.Sprintf("%s", keywords) + "%' "
    }

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

func (d *DocDirRepo) GetById(ocId, artCatId int64) (*viewmodel.DocDirInfo, error) {
    sqlSelect := ` SELECT     A.oc_id,
                                A.dir_id,
                                A.dir_title,
                                A.dir_desc,
                                A.parent_id,
                                A.is_fixed,
                                A.node_left,
                                A.node_right,
                                A.node_level,
                                A.is_leaf           `
    sqlFrom := ` FROM       doc_dir AS A        `
    sqlWhere := ` WHERE      A.deleted_flag = 0  `
    sqlWhere += fmt.Sprintf(" AND A.oc_id = %d ", ocId)
    sqlWhere += fmt.Sprintf(" AND A.dir_id  = %d ", artCatId)
    data := &viewmodel.DocDirInfo{}
    has, err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere).Get(data)
    if !has || err != nil {
        return nil, err
    } else {
        return data, nil
    }
}

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

func (d *DocDirRepo) Update(data *datamodel.DocDir) error {
    ocId := data.OcId
    dirId := data.DirId

    data.UpdatedAt = time.Now()
    _, err := d.engine.
        Where("oc_id = ?", ocId).
        Where("dir_id = ?", dirId).
        Update(data)
    return err
}

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

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

func (d *DocDirRepo) CountByParent(ocId, parentId int64) (int64, error) {
    docDir := &datamodel.DocDir{}
    return d.engine.Where("oc_id = %d", ocId).
        Where("parent_id = %d", parentId).
        Where("deleted_flag = %d", 0).
        Count(docDir)
}

func (d *DocDirRepo) IncrementLeft(ocId int64, steps int64, nodeLeft int64) error {
    sql := fmt.Sprintf("UPDATE doc_dir 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 *DocDirRepo) IncrementRight(ocId int64, steps int64, nodeRight int64) error {
    sql := fmt.Sprintf("UPDATE doc_dir 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 *DocDirRepo) DecrementLeft(ocId int64, steps int64, nodeLeft int64) error {
    sql := fmt.Sprintf("UPDATE doc_dir 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 *DocDirRepo) DecrementRight(ocId int64, steps int64, nodeRight int64) error {
    sql := fmt.Sprintf("UPDATE doc_dir 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 *DocDirRepo) BatchDelete(ocId, nodeLeft, nodeRight int64) error {
    sql := fmt.Sprintf("DELETE FROM doc_dir WHERE oc_id = %d AND node_left >= %d AND node_right <= %d ", ocId, nodeLeft, nodeRight)
    _, err := d.engine.Exec(sql)
    return err
}