package repositories

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

type Repo struct {
    engine *xorm.Engine
}

func NewRepo(engine *xorm.Engine) *Repo {
    return &Repo{
        engine: engine,
    }
}

func (d *Repo) GetPage(m map[string]interface{}) (*viewmodel.PageResult, error) {
    limit     := m["limit"].(int)
    page      := m["page"].(int)
    
    sqlSelect := ` SELECT    A.*,
                             B.repo_type_title,
                             C.repo_cat_title             `
    sqlFrom   := ` FROM      repo      AS A
                   LEFT JOIN repo_type AS B ON (A.repo_type_id = B.repo_type_id)
                   LEFT JOIN repo_cat  AS C ON (A.repo_type_id = C.repo_type_id AND A.repo_cat_id = C.repo_cat_id) `
    sqlWhere  := ` WHERE  A.deleted_flag = 0 `
    if keywords, ok := m["keywords"]; ok {
        sqlWhere += ` AND A.repo_title like ` + "'%" + fmt.Sprintf("%s", keywords) + "%'"
    }
    
    sqlCount  := ` SELECT COUNT(*)           `
    total, err1 := d.engine.SQL(sqlCount + sqlFrom + sqlWhere).Count(new(datamodel.Biz))
    if err1 != nil {
        return nil, err1
    }
    
    sqlOrderBy := " ORDER BY A.repo_id ASC "
    pageStart  := (page - 1) * limit
    sqlLimit   := fmt.Sprintf(" LIMIT %d OFFSET %d ", limit, pageStart)
    
    datalist   := make([]datamodel.Biz, 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 *Repo) GetList(m map[string]interface{}) ([]viewmodel.RepoInfo, error) {
    sqlSelect := ` SELECT    A.*,
                             B.repo_type_title,
                             C.repo_cat_title             `
    sqlFrom   := ` FROM      repo      AS A
                   LEFT JOIN repo_type AS B ON (A.repo_type_id = B.repo_type_id)
                   LEFT JOIN repo_cat  AS C ON (A.repo_type_id = C.repo_type_id AND A.repo_cat_id = C.repo_cat_id) `
    sqlWhere  := ` WHERE A.deleted_flag = 0 `
    if keywords, ok := m["keywords"]; ok {
        sqlWhere += ` AND A.repo_title like ` + "'%" + fmt.Sprintf("%s", keywords) + "%'"
    }
    
    sqlOrderBy := ` ORDER BY A.repo_id ASC `
    datalist   := make([]viewmodel.RepoInfo, 0)
    err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy).Find(&datalist)
    if err != nil {
        return nil, err
    }
    return datalist, nil
}

func (d *Repo) GetListById(repoTypeId int64) ([]viewmodel.RepoInfo, error) {
    sqlSelect := ` SELECT    A.*,
                             B.repo_type_title,
                             C.repo_cat_title             `
    sqlFrom   := ` FROM      repo      AS A
                   LEFT JOIN repo_type AS B ON (A.repo_type_id = B.repo_type_id)
                   LEFT JOIN repo_cat  AS C ON (A.repo_type_id = C.repo_type_id AND A.repo_cat_id = C.repo_cat_id) `
    sqlWhere  := ` WHERE A.deleted_flag = 0 `
    sqlWhere  += fmt.Sprintf(" AND A.repo_type_id = %d ", repoTypeId)
    sqlOrderBy := ` ORDER BY A.repo_id ASC `
    datalist   := make([]viewmodel.RepoInfo, 0)
    err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy).Find(&datalist)
    if err != nil {
        return nil, err
    }
    return datalist, nil
}

func (d *Repo) GetAll() ([]viewmodel.RepoInfo, error) {
    sqlSelect  := ` SELECT    A.*,
                              B.repo_type_title,
                              C.repo_cat_title             `
    sqlFrom    := ` FROM      repo      AS A
                    LEFT JOIN repo_type AS B ON (A.repo_type_id = B.repo_type_id)
                    LEFT JOIN repo_cat  AS C ON (A.repo_type_id = C.repo_type_id AND A.repo_cat_id = C.repo_cat_id) `
    sqlWhere   := ` WHERE A.deleted_flag = 0 `
    sqlOrderBy := ` ORDER BY A.repo_id ASC   `
    datalist   := make([]viewmodel.RepoInfo, 0)
    err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy).Find(&datalist)
    if err != nil {
        return nil, err
    }
    return datalist, nil
}

func (d *Repo) GetById(repoTypeId, repoId int64) (*viewmodel.RepoInfo, error) {
    sqlSelect  := ` SELECT    A.*,
                              B.repo_type_title,
                              C.repo_cat_title             `
    sqlFrom    := ` FROM      repo      AS A
                    LEFT JOIN repo_type AS B ON (A.repo_type_id = B.repo_type_id)
                    LEFT JOIN repo_cat  AS C ON (A.repo_type_id = C.repo_type_id AND A.repo_cat_id = C.repo_cat_id) `
    sqlWhere   := ` WHERE  A.deleted_flag = 0 `
    sqlWhere   += fmt.Sprintf(" AND A.repo_type_id = %d ", repoTypeId)
    sqlWhere   += fmt.Sprintf(" AND A.repo_id      = %d ", repoId)
    
    data := &viewmodel.RepoInfo{}
    has, err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere).Get(data)
    if !has || err != nil {
        return nil, err
    } else {
        return data, nil
    }
}

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

func (d *Repo) Update(data *datamodel.Repo) error {
    repoId := data.RepoId
    
    data.UpdatedAt = time.Now()
    _, err := d.engine.
        Where("repo_id = ?", repoId).
        Update(data)
    return err
}

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