var gui = require('gui');
const { getSummation } = require('./utils');

function waitForCloseAccountWindow(data, selectedAccount) {
    var rh = 14;
    var sp = 4;
    var y = sp;
    let gadgets = [];

    const accountNameId = 301;
    const remainingId = 302;
    const transferCheckboxId = 303;
    const targetAccountId = 304;
    const executeButtonId = 305;
   
    const openStanding = getSummation(selectedAccount.entries);

    let accounts = [];

    for (let i = 0; i < data.length; ++i) {
        if (data[i].name != selectedAccount.name) {
            accounts.push(data[i].name);
        }
    }
    
    gadgets.push({ 
        kind: 'text', id: accountNameId, 
        label: "Account:", 
        left: sp + 128, 
        top: y, 
        width: 200, 
        height: rh, 
        value: selectedAccount.name
    });
    
    gadgets.push({ 
        kind: 'text', id: remainingId, 
        label: "Remaining " + (openStanding > 0 ? "funds" : "debt"), 
        left: sp + 128, 
        top: y + rh + sp, 
        width: 100, 
        height: rh 
    });
    
    gadgets.push({ 
        kind: 'checkbox', id: transferCheckboxId, 
        label: "Transfer to:", 
        left: sp, 
        top: y + rh + sp + rh + sp, 
        height: rh, 
        value: 0 
    });
    
    gadgets.push({ 
        kind: 'cycle', id: targetAccountId, 
        left: sp + 128, 
        top: y + rh + sp + rh + sp, 
        width: 120, 
        height: rh, 
        items: accounts, 
        value: 0 
    });
    
    gadgets.push({ 
        kind: 'button', id: executeButtonId, 
        left: sp + 128, 
        top: y + rh + sp + rh + sp + rh + sp, 
        height: rh, 
        width: 120, 
        label: "Close Account"
    });

    let win = gui.createWindow({
        title: "Close Account '" + selectedAccount.name + "'",
        width: sp + 128 + 240 + sp,
        height: y + rh + sp + rh + sp + rh + sp + rh + sp,
        left: 30,
        top: 30,
        gadgets: gadgets
    });

    gui.setDisabled(win, targetAccountId, true);
    gui.set(win, remainingId, openStanding.toFixed(2));

    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, targetAccountId, !gui.get(win, transferCheckboxId));
            }
            if (evt.id === executeButtonId) {
                if (gui.get(win, transferCheckboxId)) {
                    let otherAccount;
                    let target = accounts[gui.get(win, targetAccountId)];
                    for (let i = 0; data.length; ++i) {
                        if (data[i].name === target) {
                            otherAccount = data[i];
                            break;
                        }
                    }
                    if (otherAccount) {
                        otherAccount.entries.push({
                            date: Date.now(),
                            subject: '(' + selectedAccount.name + ') Closing Statement',
                            amount: -openStanding,
                            targetAccount: null
                        });
                    }
                    gui.closeWindow(win);
                    return -1;
                }
            }
        }
    }
}
exports.waitForCloseAccountWindow = waitForCloseAccountWindow;