var gui = require('gui');
const { getAccounts, toDateByComponents } = require('./utils');

function waitForDataEntryWindow(data, projectData) {
    var rh = 14;
    var sp = 4;
    var y = sp;
    let gadgets = [];
    let removable = false;

    const subjectInputId = 401;
    const amountInputId = 402;
    const dateInputId = 403;
    const transferCheckboxId = 404;
    const transferAccountInputId = 405;
    const executeButtonId = 406;
    const deleteButtonId = 407;

    const innerData = {
        date: Date.now(),
        subject: '',
        amount: 0,
        targetAccount: null
    };

    if (data) {
        innerData.date = data.date;
        innerData.subject = data.subject;
        innerData.amount = data.amount;
        innerData.targetAccount = data.targetAccount;
        removable = true;
    }

    let d = new Date(innerData.date);
    let formattedDate = ("" + d.getDate()).padStart(2, "0") + "-" + ("" + (d.getMonth() + 1)).padStart(2, "0") + "-" + d.getFullYear();

    gadgets.push({
        kind: 'string', id: subjectInputId, label: 'Subject:',
        left: sp + 80, top: y, width: 400 - sp - 80 - sp, height: rh,
        value: innerData.subject
    });
    gadgets.push({
        kind: 'string', id: amountInputId, label: 'Amount:',
        left: sp + 80, top: sp + rh + sp, width: 100, height: rh,
        value: innerData.amount.toFixed(2)
    });
    gadgets.push({
        kind: 'string', id: dateInputId, label: 'Date:',
        left: sp + 80, top: sp + rh + sp + rh + sp, width: 150, height: rh,
        value: formattedDate
    });
    gadgets.push({ kind: 'checkbox', id: transferCheckboxId, label: "Account:", left: sp + 80, top: sp + rh + sp + rh + sp + rh + sp + 2, width: rh, height: rh, value: 0 });

    const accounts = getAccounts(projectData);

    gadgets.push({ kind: 'cycle', id: transferAccountInputId, left: sp + 160 + rh + sp, top: sp + rh + sp + rh + sp + rh + sp, width: 120, height: rh, items: accounts, value: 0 });

    gadgets.push({ kind: 'button', id: executeButtonId, left: sp + 80, top: sp + rh + sp + rh + sp + rh + sp + rh + sp, width: 80, label: "Save", height: rh });
    gadgets.push({ kind: 'button', id: deleteButtonId, left: sp + 80 + sp + 80, top: sp + rh + sp + rh + sp + rh + sp + rh + sp, width: 80, label: "Remove", height: rh });


    let win = gui.createWindow({
        title: 'Entry Details',
        width: 400,
        height: sp + rh + sp + rh + sp + rh + sp + rh + sp + rh + sp,
        left: 30,
        top: 30,
        gadgets: gadgets
    });

    if (innerData.targetAccount) {
        gui.set(win, transferCheckboxId, 1);
        let i = -1;
        for (i = 0; i < accounts.length; i++) {
            if (accounts[i] === innerData.targetAccount) {
                break;
            }
        }
        gui.set(win, 7, i);
        gui.setDisabled(win, transferAccountInputId, false);
    } else {
        gui.setDisabled(win, transferAccountInputId, true);
    }

    gui.setDisabled(win, deleteButtonId, !removable);

    
    while (true) {
        var evt = gui.waitEvent(win);
        if (!evt) continue;

        if (evt.type === 'close') {
            gui.closeWindow(win);
            return null;
        }
        if (evt.type === 'gadgetup') {
            if (evt.id === transferCheckboxId) {
                gui.setDisabled(win, transferAccountInputId, !gui.get(win, transferAccountInputId));
            }
            if (evt.id === executeButtonId) {
                innerData.subject = gui.get(win, subjectInputId);
                innerData.amount = parseFloat(gui.get(win, amountInputId));
                innerData.date = toDateByComponents(gui.get(win, dateInputId));

                if (gui.get(win, transferCheckboxId)) {
                    const targetAccountIndex = gui.get(win, transferAccountInputId);
                    if (targetAccountIndex !== null && targetAccountIndex !== undefined) {
                        innerData.targetAccount = projectData[targetAccountIndex].name;
                    }
                }
                gui.closeWindow(win);
                return innerData;
            }
            if (evt.id === deleteButtonId) {
                gui.closeWindow(win);
                return -1;
            }
        }
    }
}
exports.waitForDataEntryWindow = waitForDataEntryWindow;