// 取得access_token
function get_access_token() {
    console.log(localStorage.access_token); // test
    
    return localStorage.access_token;
}

// 檢查是否可存取該頁面
function checkRoute() {
    let access_token = get_access_token();

    if(access_token == undefined) {
      window.location.replace("login.html");
    }
}

// 帳號登入
$("#btn_login").click(function() {
    var username = $('#username').val();
    var password = $('#password').val();

    var param_string = {
        username: username,
        password: password
    };

    if (username == '' || password == '') {
        return;
    }

    $.ajax({
        type: 'POST',
        url: 'https://api.ptt.cx:8750/api/v1/login/access-token',
        data: param_string,
        success: function(res, textStatus, jqXHR) {
            // {access_token: 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE2N…kyIn0.wwRK7OKPICdbcOhLfgqA5u5uxkhRVP2gQeqEF8tCY4g', token_type: 'bearer'}
            console.log(res); // test

            // 將access_token寫入localStorage
            localStorage.access_token = res.access_token;

            // 檢查是否已登入
            let access_token = get_access_token();

            if (access_token == undefined) {
                Swal.fire({
                    title: '權限不足',
                    icon: 'info',
                    confirmButtonColor: '#3085d6'
                });
                window.location.replace("login.html");
            }

            if (access_token) {
                // 導頁進Dashboard介面
                Swal.fire({
                    title: '登入成功',
                    icon: 'success',
                    confirmButtonColor: '#3085d6'
                });

                window.setTimeout(() => {
                    window.location.href = 'index.html';
                }, 1500);
            } else {
                console.log('else'); // test
            }
        }, error: function(xhr, status, error) {
            console.log(xhr.responseText); // test

            var res = JSON.parse(xhr.responseText);
            console.log(res.detail);
            if (res.detail == 'Incorrect email or password') {
                Swal.fire({
                    title: '注意',
                    icon: 'error',
                    text: '帳號/密碼錯誤，請重新輸入',
                    confirmButtonColor: '#3085d6'
                });
            } else {
                Swal.fire({
                    title: '注意',
                    icon: 'error',
                    text: '權限不足',
                    confirmButtonColor: '#3085d6'
                });
            }
        }
    });

    return false;
});