package releases

import (
    "fmt"
    "os"
    "path/filepath"
    "mime/multipart"
    "io"
    "io/ioutil"
    "encoding/json"
    "net/http"
    "bytes"

    "oc-publish/occonst"
)

type assetStruct struct {
    Name string `json:"name"`
    Id int `json:"id"`
}

func GetAssetId(idRelease int, name string) (int, error) {
    url := fmt.Sprintf("%s/api/v1/repos/%s/releases/%d/assets",
                        occonst.PUBLISH_URL,
                        occonst.PUBLISH_REPO,
                        idRelease)

    res, err := http.Get(url)
    if err != nil {
        return -1, err
    }
    body, err := io.ReadAll(res.Body)
    if err != nil {
        return -2, err
    }

    var data []assetStruct

    err = json.Unmarshal(body, &data)
    if err != nil {
        return -3, err
    }

    for _, ele := range data {
        if ele.Name == name {
            return ele.Id, nil
        }
    }
    return 0, nil
}

// curl -X 'POST' \
//   'https://cloud.o-forge.io/api/v1/repos/core/oc-deploy/releases/2/assets?name=zzzz' \
//   -H 'accept: application/json' \
//   -H 'Content-Type: multipart/form-data' \
//   -F 'attachment=oc-deploy'
func CreateAsset(idRelease int, filename string, name string) (error) {
    url := fmt.Sprintf("%s/api/v1/repos/%s/releases/%d/assets?name=%s&token=%s",
                        occonst.PUBLISH_URL,
                        occonst.PUBLISH_REPO,
                        idRelease,
                        name,
                        occonst.PUBLISH_TOKEN)

    err := uploadFile(url, "attachment", filename)

    return err 
}

func UpdateAsset(idRelease int, idAsset int, filename string, name string) (error) {

  url := fmt.Sprintf("%s/api/v1/repos/%s/releases/%d/assets/%d?token=%s",
            occonst.PUBLISH_URL,
            occonst.PUBLISH_REPO,
            idRelease,
            idAsset,
            occonst.PUBLISH_TOKEN)

    // Create client
    client := &http.Client{}

    // Create request
    req, err := http.NewRequest("DELETE", url, nil)
    if err != nil {
        return err
    }

    // Fetch Request
    resp, err := client.Do(req)
    if err != nil {
        return err
    }
    defer resp.Body.Close()

    // Read Response Body
    respBody, err := ioutil.ReadAll(resp.Body)
    if err != nil {
        return err
    }
    fmt.Println(string(respBody))

  return CreateAsset(idRelease, filename, name)
}

func uploadFile(url string, paramName string, filePath string) error {
    file, err := os.Open(filePath)
    if err != nil {
      return err
    }
    defer file.Close()

    body := &bytes.Buffer{}
    writer := multipart.NewWriter(body)
    part, err := writer.CreateFormFile(paramName, filepath.Base(filePath))
    if err != nil {
      return err
    }
    _, err = io.Copy(part, file)
  
    err = writer.Close()
    if err != nil {
      return err
    }
  
    request, err := http.NewRequest("POST", url, body)
    request.Header.Add("Content-Type", writer.FormDataContentType())
    request.Header.Add("accept", "application/json")
    client := &http.Client{}
    response, err := client.Do(request)

    if err != nil {
      fmt.Println(109, err)
      return err
    }
    defer response.Body.Close()
  
    if response.StatusCode > 400 {
        return fmt.Errorf(response.Status)
  }

    _, err1 := io.ReadAll(response.Body)

    // Handle the server response...
    return err1
  }