package wordpress

import (
	"bytes"
	"encoding/json"
	"federated.computer/wp-sync-slowtwitch/utilities"
	"io"
	"net/http"
	"strings"
)

type CreateImage struct {
	Url string
}

type CreateImageResponse struct {
	Id   int    `json:"id"`
	Link string `json:"link"`
	Slug string `json:"slug"`
}

func (parameters *CreateImage) Execute(baseUrl, user, pass string) (CreateImageResponse, error) {
	resp, err := http.Get(parameters.Url)
	if err != nil {
		return CreateImageResponse{}, err
	}
	defer utilities.CloseBodyAndCheckError(resp.Body)
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		return CreateImageResponse{}, err
	}
	request, err := http.NewRequest("POST", baseUrl+"wp-json/wp/v2/media", bytes.NewReader(body))
	if err != nil {
		return CreateImageResponse{}, err
	}
	filename := GetFileName(parameters.Url)
	contentType := getContentType(filename)
	request.Header.Set("Content-Type", contentType)
	request.Header.Set("Content-Disposition", `attachment;filename="`+filename+`"`)
	request.SetBasicAuth(user, pass)
	rsp, err := http.DefaultClient.Do(request)
	if err != nil {
		return CreateImageResponse{}, err
	}
	result, err := io.ReadAll(rsp.Body)
	if err != nil {
		return CreateImageResponse{}, err
	}
	var data CreateImageResponse
	err = json.Unmarshal(result, &data)
	if err != nil {
		return CreateImageResponse{}, err
	}
	return data, nil
}

func GetFileName(url string) string {
	urlSlices := strings.Split(url, "/")
	length := len(urlSlices)
	var output string
	for i, s := range urlSlices {
		if i == length-1 {
			output = s
		}
	}
	return output
}

func getContentType(filename string) string {
	if strings.Contains(filename, "png") {
		return "image/png"
	} else if strings.Contains(filename, "gif") {
		return "image/gif"
	}
	return "image/jpeg"
}