package main

import (
	"encoding/json"
	"fmt"
	"io"
	"log"
	"net/http"
	"net/url"
	"os"
)

var BASE_URL = "https://awoo.fai.st"
var BASE_API_URL = "https://awoo.fai.st/api/v1"

func main() {
	client_id, client_secret, err := get_app_credentials()
	if err != nil {
		log.Fatal(err)
	}
	fmt.Println(client_id, client_secret)
}

func get_app_credentials() (string, string, error) {
	contents, err := os.ReadFile("credentials.json")
	if err != nil {
		return create_app()
	}
	var json_data map[string]string
	err = json.Unmarshal(contents, &json_data)
	if err != nil {
		return "", "", err
	}
	client_id := json_data["client_id"]
	client_secret := json_data["client_secret"]

	return client_id, client_secret, nil
}

func create_app() (string, string, error) {
	data := url.Values{
		"client_name":   {"grames"},
		"redirect_uris": {"urn:ietf:wg:oauth:2.0:oob"},
	}

	resp, err := http.PostForm(BASE_API_URL+"/apps", data)

	if err != nil {
		return "", "", err
	}
	defer resp.Body.Close()
	contents, err := io.ReadAll(resp.Body)
	if err != nil {
		return "", "", err
	}
	err = os.WriteFile("credentials.json", contents, 0644)
	if err != nil {
		return "", "", err
	}
	var json_data map[string]string
	err = json.Unmarshal(contents, &json_data)
	if err != nil {
		return "", "", err
	}
	client_id := json_data["client_id"]
	client_secret := json_data["client_secret"]

	return client_id, client_secret, nil
}