/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

var packages = [];

if (localStorage.getItem("packages") != null) {
    packages = JSON.parse(localStorage.getItem("packages"));
}

/**
 * Count how many items are still undelivered for an address.
 * @param {type} address An item in the packages array.
 * @returns {Number}
 */
function getUndeliveredCount(address) {
    var undelivered = 0;
    for (var i = 0; i < address.items.length; i++) {
        if (!address.items[i].delivered) {
            undelivered++;
        }
    }
    return undelivered;
}

function getPackage(packageid) {
    for (var i = 0; i < packages.length; i++) {
        for (var j = 0; j < packages[i].items.length; j++) {
            if (packages[i].items[j].id == packageid) {
                return packages[i].items[j];
            }
        }
    }
}

function getIconForType(packagetype) {
    switch (packagetype) {
        case "package":
            return "fas fa-box";
        case "letter":
            return "fas fa-envelope";
        case "express":
            return "fas fa-shipping-fast";
        default:
            return "fas fa-box";
    }
}

function getMapIconForItems(items) {
    var types = {
        package: 0,
        letter: 0,
        express: 0
    };
    var deliveredcount = 0;
    var type = "package";
    for (var i = 0; i < items.length; i++) {
        // Don't consider delivered packages when determining icon,
        // only count them to check if everything is delivered
        if (items[i].delivered) {
            deliveredcount++;
            continue;
        }
        types[items[i].type]++;
    }
    if (deliveredcount == items.length) {
        return "check";
    }
    if (types.letter == 0 && types.express == 0) {
        if (types.package > 1) {
            return "boxes";
        }
        return "box";
    }
    if (types.package == 0 && types.express == 0) {
        if (types.letter > 1) {
            return "envelopes";
        }
        return "envelope";
    }
    if (types.package == 0 && types.letter == 0) {
        return "express";
    }
    return "multiple-items";
}

function addPackage(address, latitude, longitude, type, callback) {
    var added = false;
    if (typeof type == 'undefined') {
        type = "package";
    }

    var packageID = uuidv4();
    var coordsID = "";

    for (var i = 0; i < packages.length; i++) {
        if (packages[i].coords[0] == latitude && packages[i].coords[1] == longitude && packages[i].address == address) {
            coordsID = packages[i].id;
            packages[i].items.push({
                address: address,
                delivered: false,
                type: type,
                id: packageID
            });
            added = true;
            break;
        }
    }
    if (!added) {
        coordsID = uuidv4();
        packages.push({
            coords: [
                latitude,
                longitude
            ],
            id: coordsID,
            address: address,
            items: [
                {
                    address: address,
                    delivered: false,
                    type: type,
                    id: packageID
                }
            ]
        });
    }
    localStorage.setItem("packages", JSON.stringify(packages));

    playSound("ok");

    app.toast.show({
        text: 'Package Added!<br><span style="font-size: 80%;">' + address + "</span>",
        position: "bottom",
        destroyOnClose: true,
        closeTimeout: 1000 * 3
    });

    if (map != null) {
        reloadMap();
    }

    if (typeof callback == 'function') {
        callback({
            coordsID: coordsID,
            packageID: packageID
        });
    }
    
    addAutofillEntry(address);
}

function markDelivered(id, delivered) {
    for (var i = 0; i < packages.length; i++) {
        for (var j = 0; j < packages[i].items.length; j++) {
            if (packages[i].items[j].id == id) {
                if (typeof delivered == 'undefined') {
                    if (packages[i].items[j].delivered == false) {
                        delivered = true;
                    } else {
                        delivered = false;
                    }
                }

                packages[i].items[j].delivered = delivered;
                if (delivered) {
                    packages[i].items[j].deliverytimestamp = Date.now();
                }
            }
        }
    }

    localStorage.setItem("packages", JSON.stringify(packages));
}

function confirmDeletePackage(package, callback) {
    app.dialog.confirm(
            "Delete item at " + package.address + "?",
            "Confirm",
            function () {
                // delete
                deletePackage(package.id, callback);
            },
            function () {
                // cancel
            }
    );
}

function deletePackage(id, callback) {
    for (var i = 0; i < packages.length; i++) {
        for (var j = 0; j < packages[i].items.length; j++) {
            if (packages[i].items[j].id == id) {
                packages[i].items.splice(j, 1);

                if (packages[i].items.length == 0) {
                    packages.splice(i, 1);
                }

                localStorage.setItem("packages", JSON.stringify(packages));
                loadPackageList();

                if (typeof callback == 'function') {
                    callback(id);
                }
                return;
            }
        }
    }
}

function countRemainingPackages() {
    var undelivered = 0;
    for (var i = 0; i < packages.length; i++) {
        for (var j = 0; j < packages[i].items.length; j++) {
            if (packages[i].items[j].delivered != true) {
                undelivered++;
            }
        }
    }
    return undelivered;
}

function countPackages() {
    var count = 0;
    for (var i = 0; i < packages.length; i++) {
        for (var j = 0; j < packages[i].items.length; j++) {
            count++;
        }
    }
    return count;
}

function addPackageByAddress(address, citystate, type, callback) {
    $.getJSON(SETTINGS.geocodeapi, {
        address: address + " " + citystate
    }, function (resp) {
        if (resp.status == "OK") {
            if (resp.accuracy.ok) {
                addPackage(resp.address.street, resp.coords[0], resp.coords[1], type, callback);
            } else {
                playSound("error");
                app.dialog.confirm(
                        "The address \"" + address + "\" couldn't be reliably located. Add it anyways?",
                        "Accuracy Warning",
                        function (ok) {
                            if (resp.address.street == "") {
                                addPackage(address, resp.coords[0], resp.coords[1], type, callback);
                            } else {
                                addPackage(resp.address.street, resp.coords[0], resp.coords[1], type, callback);
                            }
                        }
                );
            }

        } else {
            playSound("error");
            app.dialog.alert(resp.message, "Error");
        }
    });
}