function LoadUsersList(user_id) {
    var xmlhttp = new XMLHttpRequest();
    xmlhttp.onreadystatechange = function () {
        if (this.readyState == 4 && this.status == 200) {
            document.querySelector("#users_list_content").innerHTML = this.responseText;

            PermissionsListUser(user_id);

            $(document).ready(function() {
                new DataTable('#users_permission_table', {
                    paging: false,
                    scrollCollapse: true,
                    scrollY: '500px',
                    language: {
                        emptyTable: "Nessun dato presente nella tabella",
                        search: "Cerca:",
                        infoEmpty: "Visualizzati da 0 a 0 di 0 risultati",
                        info: "Visualizzati da _START_ a _END_ di _TOTAL_ risultati",
                        buttons: {
                            print: "Stampa",
                            colvis: "Visualizza",
                            colvisRestore: "Ripristina visualizzazione"
                        }
                    }
                });
            });
        }
    };
    xmlhttp.open("GET", "public/permissions/users_list.php");
    xmlhttp.send();
}

function PermissionsListUser(user_id) {
    ShowPageLoader();
    for(i=0;i<50;i++) {
        if(document.getElementById(i) != null) {
            document.getElementById(i).style.backgroundColor = "transparent";
        }
    }

    document.getElementById(user_id).style.backgroundColor = "#80cbc4";
    document.getElementById("permissions_list_loader").style.display = "block";

    var xmlhttp = new XMLHttpRequest();
    xmlhttp.onreadystatechange = function () {
        if (this.readyState == 4 && this.status == 200) {
            document.querySelector("#permissions_list_content").innerHTML = this.responseText;
            HidePageLoader();

            $(document).ready( function () {
                new DataTable('#permissions_list_table', {
                    paging: false,
                    scrollCollapse: true,
                    scrollY: '500px',
                    layout: {
                        topStart: {
                            buttons: [
                                {
                                    extend: 'print',
                                    split: ['print','excel','pdf', 'csv']
                                },
                                {
                                    text: 'Calendario',
                                    action: function (e, dt, node, config) {
                                        UserCalendar(user_id);
                                    }
                                },
                                {
                                    text: 'Nuovo permesso',
                                    action: function (e, dt, node, config) {
                                        NewPermission(user_id);
                                    }
                                }
                            ]
                        }
                    },
                    language: {
                        emptyTable: "Nessun dato presente nella tabella",
                        search: "Cerca:",
                        infoEmpty: "Visualizzati da 0 a 0 di 0 risultati",
                        info: "Visualizzati da _START_ a _END_ di _TOTAL_ risultati",
                        buttons: {
                            print: "Stampa",
                            colvis: "Visualizza",
                            colvisRestore: "Ripristina visualizzazione"
                        }
                    },
                    order: {
                        idx: 1,
                        dir: 'desc'
                    }
                });        
            } );

            document.getElementById("permissions_list_loader").style.display = "none";
        }
    };
    xmlhttp.open("GET", "public/permissions/permissions_list.php?user_id="+user_id);
    xmlhttp.send();
}

function loadTotalPermissionsToApprove() {
    var xmlhttp = new XMLHttpRequest();
    xmlhttp.onreadystatechange = function () {
        if (this.readyState == 4 && this.status == 200) {
            document.querySelector("#permissions_to_approve_count").innerHTML = this.responseText;
        }
    };
    xmlhttp.open("GET", "public/permissions/permissions_to_approve_count.php");
    xmlhttp.send();
}

function permissionsToApprove() {
    document.getElementById("open_permissions_to_approve").click();
    loadPermissionToApprove();
}

function loadPermissionToApprove() {
    ShowPageLoader();

    setTimeout(() => {

        var xmlhttp = new XMLHttpRequest();
        xmlhttp.onreadystatechange = function () {
            if (this.readyState == 4 && this.status == 200) {
                document.querySelector("#permissions_to_approve_content").innerHTML = this.responseText;
                HidePageLoader();

                $(document).ready( function () {
                    new DataTable('#permissions_to_approve_table', {
                        paging: false,
                        scrollCollapse: true,
                        scrollY: '400px',
                        layout: {
                            topStart: {
                                buttons: [
                                    {
                                        extend: 'colvis',
                                        postfixButtons: ['colvisRestore'],
                                        popoverTitle: 'Visibilità colonne'
                                    },
                                    {
                                        extend: 'print',
                                        split: ['print','excel','pdf', 'csv']
                                    }
                                ]
                            }
                        },
                        language: {
                            emptyTable: "Nessun dato presente nella tabella",
                            search: "Cerca:",
                            infoEmpty: "Visualizzati da 0 a 0 di 0 risultati",
                            info: "Visualizzati da _START_ a _END_ di _TOTAL_ risultati",
                            buttons: {
                                print: "Stampa",
                                colvis: "Visualizza",
                                colvisRestore: "Ripristina visualizzazione"
                            }
                        },
                        order: {
                            idx: 3,
                            dir: 'desc'
                        }
                    });        
                } );
            }
        };
        xmlhttp.open("GET", "public/permissions/permissions_to_approve_list.php");
        xmlhttp.send();
    }, 1000);
}

function NewPermission(user_id) {
    document.getElementById("open_new_permission").click();
    ShowPageLoader();

    var xmlhttp = new XMLHttpRequest();
    xmlhttp.onreadystatechange = function () {
        if (this.readyState == 4 && this.status == 200) {
            document.querySelector("#new_permission_content").innerHTML = this.responseText;
            HidePageLoader();
        }
    };
    xmlhttp.open("GET", "public/permissions/new_permission_content.php?user_id="+user_id);
    xmlhttp.send();
}

function changeFullDay() {
    var full_day = document.getElementById("new_permission_full_day").checked;
    
    if(full_day == true) {
        document.getElementById("new_permission_from_time_container").style.display = 'none';
        document.getElementById("new_permission_to_time_container").style.display = 'none';
    } else {
        document.getElementById("new_permission_from_time_container").style.display = 'flex';
        document.getElementById("new_permission_to_time_container").style.display = 'flex';
    }
}

function CreateNewPermission(user_id) {
    var permission_justification = document.getElementById("new_permission_justification").value;
    var permission_full_day = document.getElementById("new_permission_full_day").checked;
    var permission_start_date = document.getElementById("new_permission_start_date").value;
    var permission_end_date = document.getElementById("new_permission_end_date").value;
    var permission_start_time = document.getElementById("new_permission_start_time").value;
    var permission_end_time = document.getElementById("new_permission_end_time").value;
    var permission_note = document.getElementById("new_permission_note").value;

    if(permission_justification == "") {
        ErrorAlert("Giustificativo è obbligatorio");
        exit;
    }
    ShowPageLoader();

    $.ajax({
        type: "POST",
        url: "php/permissions/new_permission.php",
        data: { user_id: user_id, permission_justification: permission_justification, permission_full_day: permission_full_day, permission_start_date: permission_start_date, permission_end_date: permission_end_date, permission_start_time: permission_start_time, permission_end_time: permission_end_time, permission_note: permission_note },
        success: function (res) {
            if (res === 'attendancePresent') {
                ErrorAlert("Il cartellino del mese è già stato chiuso.");
            } else if (res === 'error') {
                ErrorAlert("Errore: "+res)
            } else {
                SuccessAlert('Permesso inserito');
                document.getElementById("close_new_permission").click();
                PermissionsListUser(user_id);
                const date = new Date();
                loadUserCalendar(user_id, 'dayGridMonth', date);
            }
            HidePageLoader();
        }
    });
}

function approvePermission(user_id, permission_id) {
    Swal.fire({
        title: "Confermi approvazione?",
        text: "",
        icon: "warning",
        showCancelButton: true,
        confirmButtonColor: "#d33",
        cancelButtonColor: "gray",
        confirmButtonText: "Procedi",
        cancelButtonText: "Annulla"
    }).then((result) => {
        if (result.isConfirmed) {
            ShowPageLoader();

            $.ajax({
                type: "POST",
                url: "php/permissions/manage_permission.php",
                data: { id: permission_id, result: 'approvato' },
                success: function (res) {
                    if (res === 'attendancePresent') {
                        ErrorAlert("Il cartellino del mese è già stato chiuso.");
                    } else if (res === 'error') {
                        ErrorAlert("Errore: "+res);
                    } else {
                        LoadUsersList(user_id);
                        PermissionsListUser(user_id);
                        SuccessAlert('Permesso approvato');
                        loadTotalPermissionsToApprove();
                        loadPermissionToApprove();
                        document.getElementById("close_permission_details").click();
                        const date = new Date();
                        loadUserCalendar(user_id, 'dayGridMonth', date);
                    }
                    HidePageLoader();
                }
            });
        }
    });
}

function rejectPermission(user_id, permission_id) {
    Swal.fire({
        title: "Confermi rifiuto?",
        text: "",
        icon: "question",
        showCancelButton: true,
        confirmButtonColor: "#d33",
        cancelButtonColor: "gray",
        confirmButtonText: "Procedi",
        cancelButtonText: "Annulla"
    }).then((result) => {
        if (result.isConfirmed) {
            ShowPageLoader();

            $.ajax({
                type: "POST",
                url: "php/permissions/manage_permission.php",
                data: { id: permission_id, result: 'rifiutato' },
                success: function (res) {
                    if (res === 'attendancePresent') {
                        ErrorAlert("Il cartellino del mese è già stato chiuso.");
                    } else if (res === 'error') {
                        ErrorAlert("Errore: "+res);
                    } else {
                        LoadUsersList(user_id);
                        PermissionsListUser(user_id);
                        SuccessAlert('Permesso rifiutato');
                        loadTotalPermissionsToApprove();
                        loadPermissionToApprove();
                        document.getElementById("close_permission_details").click();
                        const date = new Date();
                        loadUserCalendar(user_id, 'dayGridMonth', date);
                    }
                    HidePageLoader();
                }
            });
        }
    });
}

function deletePermission(user_id, permission_id) {
    Swal.fire({
        title: "Confermi eliminazione?",
        text: "Il permesso verrà eliminato dal sistema",
        icon: "question",
        showCancelButton: true,
        confirmButtonColor: "#d33",
        cancelButtonColor: "#3085d6",
        confirmButtonText: "Sì, elimina!",
        cancelButtonText: "Annulla"
    }).then((result) => {
        if (result.isConfirmed) {
            ShowPageLoader();
            $.ajax({
                type: "POST",
                url: "php/permissions/delete_permission.php",
                data: { permission_id: permission_id },
                success: function (res) {
                    if (res === 'attendancePresent') {
                        ErrorAlert("Il cartellino del mese è già stato chiuso");
                    } else if (res === 'error') {
                        ErrorAlert("Errore: "+res)
                    } else if (res === 'deleted') {
                        SuccessAlert('Permesso eliminato');
                        PermissionsListUser(user_id);
                        const date = new Date();
                        loadUserCalendar(user_id, 'dayGridMonth', date);
                        document.getElementById("close_permission_details").click();
                        loadPermissionToApprove();
                    } else if (res === 'requested') {
                        SuccessAlert('Richiesta eliminazione inviata');
                        PermissionsListUser(user_id);
                        const date = new Date();
                        loadUserCalendar(user_id, 'dayGridMonth', date);
                        document.getElementById("close_permission_details").click();
                        loadPermissionToApprove();
                    }
                    hidePageLoader();
                }
            });
        }
    });
}

function editPermission(user_id, permission_id) {
    ShowPageLoader();
    document.getElementById("open_permission_details").click();

    var xmlhttp = new XMLHttpRequest();
    xmlhttp.onreadystatechange = function () {
        if (this.readyState == 4 && this.status == 200) {
            document.querySelector("#permission_details_content").innerHTML = this.responseText;
            HidePageLoader();
        }
    };
    xmlhttp.open("GET", "public/permissions/permission_details_content.php?permission_id="+permission_id+"&user_id="+user_id);
    xmlhttp.send();
}

function changeFullDayEdit() {
    var full_day = document.getElementById("permission_full_day").checked;
    
    if(full_day == true) {
        document.getElementById("permission_from_time_container").style.display = 'none';
        document.getElementById("permission_to_time_container").style.display = 'none';
    } else {
        document.getElementById("permission_from_time_container").style.display = 'flex';
        document.getElementById("permission_to_time_container").style.display = 'flex';
    }
}

function updatePermission(user_id, permission_id) {
    ShowPageLoader();
    var permission_justification = document.getElementById("permission_justification").value;
    var permission_full_day = document.getElementById("permission_full_day").checked;
    var permission_start_date = document.getElementById("permission_start_date").value;
    var permission_end_date = document.getElementById("permission_end_date").value;
    var permission_start_time = document.getElementById("permission_start_time").value;
    var permission_end_time = document.getElementById("permission_end_time").value;
    var permission_note = document.getElementById("permission_note").value;
    var permission_status = document.getElementById("permission_status").value;

    $.ajax({
        type: "POST",
        url: "php/permissions/update_permission.php",
        data: { permission_id: permission_id, permission_justification: permission_justification, permission_full_day: permission_full_day, permission_start_date: permission_start_date, permission_end_date: permission_end_date, permission_start_time: permission_start_time, permission_end_time: permission_end_time, permission_note: permission_note, permission_status: permission_status },
        success: function (res) {
            if (res === 'attendancePresent') {
                ErrorAlert("Il cartellino del mese è già stato chiuso");
            } else if (res === 'error') {
                ErrorAlert("Errore: "+res);
            } else if (res === 'deleted') {
                SuccessAlert('Permesso eliminato');
                PermissionsListUser(user_id);
                const date = new Date();
                loadUserCalendar(user_id, 'dayGridMonth', date);
                document.getElementById("close_permission_details").click();
                loadPermissionToApprove();
            } else if (res === 'requested') {
                SuccessAlert('Richiesta eliminazione inviata');
                PermissionsListUser(user_id);
                const date = new Date();
                loadUserCalendar(user_id, 'dayGridMonth', date);
                document.getElementById("close_permission_details").click();
                loadPermissionToApprove();
            }
            HidePageLoader();
        }
    });
}

function UserCalendar(user_id) {
    document.getElementById("open_user_calendar").click();
    ShowPageLoader();
    setTimeout(() => {
        const date = new Date();
        loadUserCalendar(user_id, 'dayGridMonth', date);
        HidePageLoader();
    }, 1000);
}

function UserCalendarDate(user_id, date) {
    document.getElementById("open_user_calendar").click();
    ShowPageLoader();
    
    setTimeout(() => {
        loadUserCalendar(user_id, 'timeGridDay', date);
        HidePageLoader();
    }, 1000);
}

function loadUserCalendar(user_id, view, date) {
    var xmlhttp = new XMLHttpRequest();
    xmlhttp.onreadystatechange = function () {
        if (this.readyState == 4 && this.status == 200) {
            document.querySelector("#user_calendar_content").innerHTML = this.responseText;

            var calendarEl = document.getElementById('calendar');
            var calendar = new FullCalendar.Calendar(calendarEl, {
                initialView: view,
                locale: 'it',
                editable: false,
                height: 700,
                now: date,
                displayEventTime: true,
                firstDay: 1,
                customButtons: {
                    myCustomButton: {
                        text: 'Nuovo permesso',
                        click: function() {
                            NewPermission(user_id);
                        }
                    }
                },
                headerToolbar: {
                    left: 'prev,next today myCustomButton',
                    center: 'title',
                    right: 'dayGridMonth,timeGridWeek,timeGridDay,listMonth'
                },
                buttonText: {
                    prev: 'Prec',
                    next: 'Succ',
                    today: 'Oggi',
                    year: 'Anno',
                    month: 'Mese',
                    week: 'Settimana',
                    day: 'Giorno',
                    list: 'Agenda',
                },
                allDayText: 'Tutto il giorno',
                moreLinkText(n) {
                    return '+altri ' + n;
                },
                events: "php/permissions/get_calendar_permissions.php?user_id="+user_id,
                eventDisplay: 'block',
                displayEventTime: true,
                eventTimeFormat: {
                    hour: '2-digit',
                    minute: '2-digit',
                    hour12: false
                },
                selectable: true,
                select: function (info) {

                    document.getElementById("open_new_permission").click();

                    var xmlhttp = new XMLHttpRequest();
                    xmlhttp.onreadystatechange = function () {
                        if (this.readyState == 4 && this.status == 200) {
                            document.querySelector("#new_permission_content").innerHTML = this.responseText;
                        }
                    };
                    xmlhttp.open("GET", "public/permissions/new_permission_content.php?user_id="+user_id+"&startDate="+info.startStr+"&endDate="+info.endStr);
                    xmlhttp.send();
                },
                eventClick: function (info) {
                    if(info.event.id < 9000000) {
                        document.getElementById("open_permission_details").click();

                        var xmlhttp = new XMLHttpRequest();
                        xmlhttp.onreadystatechange = function () {
                            if (this.readyState == 4 && this.status == 200) {
                                document.querySelector("#permission_details_content").innerHTML = this.responseText;
                            }
                        };
                        xmlhttp.open("GET", "public/permissions/permission_details_content.php?permission_id="+info.event.id+"&user_id="+user_id);
                        xmlhttp.send();
                    }
                }
            });
            calendar.render();
        }
    };
    xmlhttp.open("GET", "public/permissions/permissions_calendar_content.php?user_id="+user_id);
    xmlhttp.send();
}