$(document).ready(function() {
    var show_allocate_form = $("#allocateModal").data('show-action-form');
    var show_datawipe_form = $("#datawipeModal").data('show-action-form');
    var show_trade_form = $("#tradeLotModal").data('show-action-form');
    if (show_allocate_form != "None") {
        $("#allocateModal .btn-primary").show();
        newAllocate(show_allocate_form);
    } else if (show_datawipe_form != "None") {
        $("#datawipeModal .btn-primary").show();
        newDataWipe(show_datawipe_form);
    } else if (show_trade_form != "None") {
        $("#tradeLotModal .btn-primary").show();
        newTrade(show_trade_form);
    } else {
        $(".deviceSelect").on("change", deviceSelect);
    }
    // $('#selectLot').selectpicker();
})

function deviceSelect() {
    var devices_count = $(".deviceSelect").filter(':checked').length;
    get_device_list();
    if (devices_count == 0) {
        $("#addingLotModal .pol").show();
        $("#addingLotModal .btn-primary").hide();

        $("#removeLotModal .pol").show();
        $("#removeLotModal .btn-primary").hide();

        $("#addingTagModal .pol").show();
        $("#addingTagModal .btn-primary").hide();

        $("#actionModal .pol").show();
        $("#actionModal .btn-primary").hide();

        $("#allocateModal .pol").show();
        $("#allocateModal .btn-primary").hide();

        $("#datawipeModal .pol").show();
        $("#datawipeModal .btn-primary").hide();
    } else {
        $("#addingLotModal .pol").hide();
        $("#addingLotModal .btn-primary").show();

        $("#removeLotModal .pol").hide();
        $("#removeLotModal .btn-primary").show();

        $("#actionModal .pol").hide();
        $("#actionModal .btn-primary").show();

        $("#allocateModal .pol").hide();
        $("#allocateModal .btn-primary").show();

        $("#datawipeModal .pol").hide();
        $("#datawipeModal .btn-primary").show();

        $("#addingTagModal .pol").hide();
        $("#addingTagModal .btn-primary").show();
    }
}

function removeLot() {
    var devices = $(".deviceSelect");
    if (devices.length > 0) {
        $("#btnRemoveLots .text-danger").show();
    } else {
        $("#btnRemoveLots .text-danger").hide();
    }
    $("#activeRemoveLotModal").click();
}

function removeTag() {
    var devices = $(".deviceSelect").filter(':checked');
    var devices_id = $.map(devices, function(x) { return $(x).attr('data')});
    if (devices_id.length == 1) {
        var url = "/inventory/tag/devices/"+devices_id[0]+"/del/";
        window.location.href = url;
    } else {
        $("#unlinkTagAlertModal").click();
    }
}

function addTag() {
    var devices = $(".deviceSelect").filter(':checked');
    var devices_id = $.map(devices, function(x) { return $(x).attr('data')});
    if (devices_id.length == 1) {
        $("#addingTagModal .pol").hide();
        $("#addingTagModal .btn-primary").show();
    } else {
        $("#addingTagModal .pol").show();
        $("#addingTagModal .btn-primary").hide();
    }

    $("#addTagAlertModal").click();
}

function newTrade(action) {
    var title = "Trade "
    var user_to = $("#user_to").data("email");
    var user_from = $("#user_from").data("email");
    if (action == 'user_from') {
        title = 'Trade Incoming';
        $("#user_to").attr('readonly', 'readonly');
        $("#user_from").prop('readonly', false);
        $("#user_from").val('');
        $("#user_to").val(user_to);
    } else if (action == 'user_to') {
        title = 'Trade Outgoing';
        $("#user_from").attr('readonly', 'readonly');
        $("#user_to").prop('readonly', false);
        $("#user_to").val('');
        $("#user_from").val(user_from);
    }
    $("#tradeLotModal #title-action").html(title);
    $("#activeTradeModal").click();
}

function newAction(action) {
    $("#actionModal #type").val(action);
    $("#actionModal #title-action").html(action);
    deviceSelect();
    $("#activeActionModal").click();
}

function newAllocate(action) {
    $("#allocateModal #type").val(action);
    $("#allocateModal #title-action").html(action);
    deviceSelect();
    $("#activeAllocateModal").click();
}

function newDataWipe(action) {
    $("#datawipeModal #type").val(action);
    $("#datawipeModal #title-action").html(action);
    deviceSelect();
    $("#activeDatawipeModal").click();
}

function get_device_list() {
    var devices = $(".deviceSelect").filter(':checked');

    /* Insert the correct count of devices in actions form */
    var devices_count = devices.length;
    $("#datawipeModal .devices-count").html(devices_count);
    $("#allocateModal .devices-count").html(devices_count);
    $("#actionModal .devices-count").html(devices_count);

    /* Insert the correct value in the input devicesList */
    var devices_id = $.map(devices, function(x) { return $(x).attr('data')}).join(",");
    $.map($(".devicesList"), function(x) {
        $(x).val(devices_id);
    });

    /* Create a list of devices for human representation */
    var computer = {
        "Desktop": "<i class='bi bi-building'></i>",
        "Laptop": "<i class='bi bi-laptop'></i>",
    };
    list_devices = devices.map(function (x) {
        var typ = $(devices[x]).data("device-type");
        var manuf = $(devices[x]).data("device-manufacturer");
        var dhid = $(devices[x]).data("device-dhid");
        if (computer[typ]) {
            typ = computer[typ];
        };
        return typ + " " + manuf + " " + dhid;
    });

    description = $.map(list_devices, function(x) { return x }).join(", ");
    $(".enumeration-devices").html(description);
}

function export_file(type_file) {
    var devices = $(".deviceSelect").filter(':checked');
    var devices_id = $.map(devices, function(x) { return $(x).attr('data-device-dhid')}).join(",");
    if (devices_id){
        var url = "/inventory/export/"+type_file+"/?ids="+devices_id;
        window.location.href = url;
    } else {
        $("#exportAlertModal").click();
    }
}



/**
 * Reactive lots button
 */
async function processSelectedDevices() {
    const Api = {
        /**
         * get lots id
         * @returns get lots
         */
        async get_lots() {
            var request = await this.doRequest(API_URLS.lots, "GET", null);
            if (request != undefined) return request.items;
            throw request;
        },

        /**
         * Get filtered devices info
         * @param {number[]} ids devices ids
         * @returns full detailed device list
         */
        async get_devices(ids) {
            var request = await this.doRequest(API_URLS.devices + '?filter={"id": [' + ids.toString() + ']}', "GET", null);
            if (request != undefined) return request.items;
            throw request;
        },

        /**
         * Add devices to lot
         * @param {number} lotID lot id
         * @param {number[]} listDevices list devices id
         */
        async devices_add(lotID, listDevices) {
            var queryURL = API_URLS.devices_modify.replace("UUID", lotID) + "?" + listDevices.map(deviceID => "id=" + deviceID).join("&");
            return await Api.doRequest(queryURL, "POST", null);
        },

        /**
         * Remove devices from a lot
         * @param {number} lotID lot id
         * @param {number[]} listDevices list devices id
         */
        async devices_remove(lotID, listDevices) {
            var queryURL = API_URLS.devices_modify.replace("UUID", lotID) + "?" + listDevices.map(deviceID => "id=" + deviceID).join("&");
            return await Api.doRequest(queryURL, "DELETE", null);
        },

        /**
         * 
         * @param {string} url URL to be requested
         * @param {String} type Action type
         * @param {String | Object} body body content
         * @returns 
         */
        async doRequest(url, type, body) {
            var result;
            try {
                result = await $.ajax({
                    url: url,
                    type: type,
                    headers: { "Authorization": API_URLS.Auth_Token },
                    body: body
                });
                return result;
            } catch (error) {
                console.error(error);
                throw error;
            }
        }
    }

    class Actions {

        constructor() {
            this.list = []; // list of petitions of requests @item --> {type: ["Remove" | "Add"], "LotID": string, "devices": number[]}
        }

        /**
         * Manage the actions that will be performed when applying the changes
         * @param {*} ev event (Should be a checkbox type)
         * @param {string} lotID lot id
         * @param {number} deviceID device id
         */
        manage(event, lotID, deviceListID) {
            event.preventDefault();
            const indeterminate = event.srcElement.indeterminate;
            const checked = !event.srcElement.checked;

            var found = this.list.filter(list => list.lotID == lotID)[0];
            var foundIndex = found != undefined ? this.list.findLastIndex(x => x.lotID == found.lotID) : -1;

            if (checked) {
                if (found != undefined && found.type == "Remove") {
                    if (found.isFromIndeterminate == true) {
                        found.type = "Add";
                        this.list[foundIndex] = found;
                    } else {
                        this.list = this.list.filter(list => list.lotID != lotID);
                    }
                } else {
                    this.list.push({ type: "Add", lotID: lotID, devices: deviceListID, isFromIndeterminate: indeterminate });
                }
            } else {
                if (found != undefined && found.type == "Add") {
                    if (found.isFromIndeterminate == true) {
                        found.type = "Remove";
                        this.list[foundIndex] = found;
                    } else {
                        this.list = this.list.filter(list => list.lotID != lotID);
                    }
                } else {
                    this.list.push({ type: "Remove", lotID: lotID, devices: deviceListID, isFromIndeterminate: indeterminate });
                }
            }

            if (this.list.length > 0) {
                document.getElementById("ApplyDeviceLots").classList.remove("disabled");
            } else {
                document.getElementById("ApplyDeviceLots").classList.add("disabled");
            }
        }

        /**
         * Creates notification to give feedback to user
         * @param {string} title notification title
         * @param {string | null} toastText notification text
         * @param {boolean} isError defines if a toast is a error
         */
        notifyUser(title, toastText, isError) {
            let toast = document.createElement("div");
            toast.classList = "alert alert-dismissible fade show " + (isError ? "alert-danger" : "alert-success");
            toast.attributes["data-autohide"] = !isError;
            toast.attributes["role"] = "alert";
            toast.style = "margin-left: auto; width: fit-content;";
            toast.innerHTML = `<strong>${title}</strong><button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>`;
            if (toastText && toastText.length > 0) {
                toast.innerHTML += `<br>${toastText}`;
            }

            document.getElementById("NotificationsContainer").appendChild(toast);
            if (!isError) {
                setTimeout(() => toast.classList.remove("show"), 3000);
            }
            setTimeout(() => document.getElementById("NotificationsContainer").innerHTML == "", 3500);
        }

        /**
         * Get actions and execute call request to add or remove devices from lots
         */
        doActions() {
            var requestCount = 0; // This is for count all requested api count, to perform reRender of table device list
            this.list.forEach(async action => {
                if (action.type == "Add") {
                    try {
                        await Api.devices_add(action.lotID, action.devices);
                        this.notifyUser("Devices sucefully aded to selected lot/s", "", false);
                    } catch (error) {
                        this.notifyUser("Failed to add devices to selected lot/s", error.responseJSON.message, true);
                    }
                } else if (action.type == "Remove") {
                    try {
                        await Api.devices_remove(action.lotID, action.devices);
                        this.notifyUser("Devices sucefully removed from selected lot/s", "", false);
                    } catch (error) {
                        this.notifyUser("Fail to remove devices from selected lot/s", error.responseJSON.message, true);
                    }
                }

                requestCount += 1
                if (requestCount == this.list.length) {
                    this.reRenderTable();
                    this.list = []
                }
            })
        }

        /**
         * Re-render list in table
         */
        async reRenderTable() {
            var newRequest = await Api.doRequest(window.location)

            var tmpDiv = document.createElement("div")
            tmpDiv.innerHTML = newRequest

            var oldTable = Array.from(document.querySelectorAll("table.table > tbody > tr .deviceSelect")).map(x => x.attributes["data-device-dhid"].value)
            var newTable = Array.from(tmpDiv.querySelectorAll("table.table > tbody > tr .deviceSelect")).map(x => x.attributes["data-device-dhid"].value)

            for (let i = 0; i < oldTable.length; i++) {
                if (!newTable.includes(oldTable[i])) {
                    // variable from device_list.html --> See: ereuse_devicehub\templates\inventory\device_list.html (Ln: 411)
                    table.rows().remove(i)
                }
            }
        }
    }

    var eventClickActions;

    /**
     * Generates a list item with a correspondient checkbox state
     * @param {String} lotID 
     * @param {String} lotName 
     * @param {Array<number>} selectedDevicesIDs
     * @param {HTMLElement} target
     */
    function templateLot(lotID, lot, selectedDevicesIDs, elementTarget, actions) {
        elementTarget.innerHTML = ""

        var htmlTemplate = `<input class="form-check-input" type="checkbox" id="${lotID}" style="width: 20px; height: 20px; margin-right: 7px;">
            <label class="form-check-label" for="${lotID}">${lot.name}</label>`;

        var existLotList = selectedDevicesIDs.map(selected => lot.devices.includes(selected));

        var doc = document.createElement('li');
        doc.innerHTML = htmlTemplate;

        if (selectedDevicesIDs.length <= 0) {
            doc.children[0].disabled = true;
        } else if (existLotList.every(value => value == true)) {
            doc.children[0].checked = true;
        } else if (existLotList.every(value => value == false)) {
            doc.children[0].checked = false;
        } else {
            doc.children[0].indeterminate = true;
        }

        doc.children[0].addEventListener('mouseup', (ev) => actions.manage(ev, lotID, selectedDevicesIDs));
        elementTarget.append(doc);
    }

    var listHTML = $("#LotsSelector")

    // Get selected devices
    var selectedDevicesIDs = $.map($(".deviceSelect").filter(':checked'), function (x) { return parseInt($(x).attr('data')) });
    if (selectedDevicesIDs.length <= 0) {
        listHTML.html('<li style="color: red; text-align: center">No devices selected</li>');
        return;
    }

    // Initialize Actions list, and set checkbox triggers
    var actions = new Actions();
    if (eventClickActions) {
        document.getElementById("ApplyDeviceLots").removeEventListener(eventClickActions);
    }
    eventClickActions = document.getElementById("ApplyDeviceLots").addEventListener("click", () => actions.doActions());
    document.getElementById("ApplyDeviceLots").classList.add("disabled");

    try {
        listHTML.html('<li style="text-align: center"><div class="spinner-border text-info" style="margin: auto" role="status"></div></li>')
        var devices = await Api.get_devices(selectedDevicesIDs);
        var lots = await Api.get_lots();

        lots = lots.map(lot => {
            lot.devices = devices
                .filter(device => device.lots.filter(devicelot => devicelot.id == lot.id).length > 0)
                .map(device => parseInt(device.id));
            return lot;
        })

        listHTML.html('');
        lots.forEach(lot => templateLot(lot.id, lot, selectedDevicesIDs, listHTML, actions));
    } catch (error) {
        console.log(error);
        listHTML.html('<li style="color: red; text-align: center">Error feching devices and lots<br>(see console for more details)</li>');
    }
}