package repository

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

type DocFileRepo struct {
    engine *xorm.Engine
}

func NewDocFileRepo(engine *xorm.Engine) *DocFileRepo {
    return &DocFileRepo{
        engine: engine,
    }
}

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

    sqlSelect := `    SELECT      A.oc_id,
                                    A.file_id,
                                    A.file_title,
                                    A.dir_id,
                                    A.file_icon,
                                    A.file_url,
                                    A.file_ext,
                                    A.file_mime_type,
                                    A.file_size,
                                    A.file_author,
                                    A.file_desc,
                                    A.uploaded_by  AS uploader_id,
                                    B.account_name AS uploader_name,
                                    A.uploaded_at        `
    sqlFrom := `    FROM        doc_file  AS A
                        LEFT JOIN   account   AS B ON (A.oc_id = B.oc_id AND A.uploaded_by = B.account_id) `
    sqlWhere := `    WHERE A.deleted_flag = 0    `
    if ocId, ok := m["ocId"]; ok {
        sqlWhere += fmt.Sprintf(" AND A.oc_id = %d ", ocId)
    }
    if fileId, ok := m["ocId"]; ok {
        sqlWhere += fmt.Sprintf(" AND A.file_id = %d ", fileId)
    }
    if keywords, ok := m["keywords"]; ok {
        sqlWhere += " AND A.file_title like '%" + fmt.Sprintf("%s", keywords) + "%' "
    }

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

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

    datalist := make([]datamodel.DocFile, 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 *DocFileRepo) GetList(m map[string]interface{}) ([]viewmodel.DocFileInfo, error) {
    sqlSelect := `    SELECT  A.oc_id,
                                A.file_id,
                                A.file_title,
                                A.dir_id,
                                A.file_icon,
                                A.file_url,
                                A.file_ext,
                                A.file_mime_type,
                                A.file_size,
                                A.file_author,
                                A.file_desc,
                                A.uploaded_by  AS uploader_id,
                                B.account_name AS uploader_name,
                                A.uploaded_at                       `
    sqlFrom := `    FROM    doc_file        AS A
                        LEFT    JOIN account    AS B ON (A.oc_id = B.oc_id AND A.uploaded_by = B.account_id) `
    sqlWhere := `    WHERE  A.deleted_flag = 0 `
    if ocId, ok := m["ocId"]; ok {
        sqlWhere += fmt.Sprintf(" AND A.oc_id = %d ", ocId)
    }
    if fileId, ok := m["ocId"]; ok {
        sqlWhere += fmt.Sprintf(" AND A.file_id = %d ", fileId)
    }
    if keywords, ok := m["keywords"]; ok {
        sqlWhere += " AND A.file_title like '%" + fmt.Sprintf("%s", keywords) + "%' "
    }

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

func (d *DocFileRepo) GetById(ocId, fileId int64) (*viewmodel.DocFileInfo, error) {
    sqlSelect := `    SELECT      A.oc_id,
                                    A.file_id,
                                    A.file_title,
                                    A.dir_id,
                                    A.file_icon,
                                    A.file_url,
                                    A.file_ext,
                                    A.file_mime_type,
                                    A.file_size,
                                    A.file_author,
                                    A.file_desc,
                                    A.uploaded_by  AS uploader_id,
                                    B.account_name AS uploader_name,
                                    A.uploaded_at        `
    sqlFrom := `    FROM        doc_file  AS A
                        LEFT JOIN   account   AS B ON (A.oc_id = B.oc_id AND A.uploaded_by = B.account_id) `
    sqlWhere := `    WHERE  A.deleted_flag = 0 `
    sqlWhere += fmt.Sprintf(" AND A.oc_id = %d ", ocId)
    sqlWhere += fmt.Sprintf(" AND A.file_id  = %d ", fileId)
    data := &viewmodel.DocFileInfo{}
    has, err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere).Get(data)
    if !has || err != nil {
        return nil, err
    } else {
        return data, nil
    }
}

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

func (d *DocFileRepo) Update(data *datamodel.DocFile) error {
    fileId := data.FileId

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

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

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