const { GLib, Gdk, Gtk } = imports.gi;
import { App, Service, Utils, Widget } from '../../imports.js';
import Hyprland from 'resource:///com/github/Aylur/ags/service/hyprland.js';
const { Box, EventBox, Button, Revealer } = Widget;
const { execAsync, exec } = Utils;
import { MaterialIcon } from '../../lib/materialicon.js';
import { separatorLine } from '../../lib/separator.js';
import { defaultOskLayout, oskLayouts } from '../../data/keyboardlayouts.js';
import { setupCursorHoverGrab } from '../../lib/cursorhover.js';

const keyboardLayout = defaultOskLayout;
const keyboardJson = oskLayouts[keyboardLayout];
execAsync(`ydotoold`).catch(print); // Start ydotool daemon

function releaseAllKeys() {
    const keycodes = Array.from(Array(249).keys());
    execAsync([`ydotool`, `key`, ...keycodes.map(keycode => `${keycode}:0`)])
        .then(console.log('Released all keys'))
        .catch(print);
}
var modsPressed = false;

const topDecor = Box({
    vertical: true,
    children: [
        Box({
            hpack: 'center',
            className: 'osk-dragline',
            homogeneous: true,
            children: [EventBox({
                setup: setupCursorHoverGrab,
            })]
        })
    ]
});

const keyboardControlButton = (icon, text, runFunction) => Button({
    className: 'osk-control-button spacing-h-10',
    onClicked: () => runFunction(),
    child: Widget.Box({
        children: [
            MaterialIcon(icon, 'norm'),
            Widget.Label({
                label: `${text}`,
            }),
        ]
    })
})

const keyboardControls = Box({
    vertical: true,
    className: 'spacing-v-5',
    children: [
        Button({
            className: 'osk-control-button txt-norm icon-material',
            onClicked: () => {
                releaseAllKeys();
                App.toggleWindow('osk');
            },
            label: 'keyboard_hide',
        }),
        Button({
            className: 'osk-control-button txt-norm',
            label: `${keyboardJson['name_short']}`,
        }),
        Button({
            className: 'osk-control-button txt-norm icon-material',
            onClicked: () => { // TODO: Proper clipboard widget, since fuzzel doesn't receive mouse inputs
                execAsync([`bash`, `-c`, "pkill fuzzel || cliphist list | fuzzel --no-fuzzy --dmenu | cliphist decode | wl-copy"]).catch(print);
            },
            label: 'assignment',
        }),
    ]
})

const keyboardItself = (kbJson) => {
    return Box({
        vertical: true,
        className: 'spacing-v-5',
        children: kbJson.keys.map(row => Box({
            vertical: false,
            className: 'spacing-h-5',
            children: row.map(key => {
                return Button({
                    className: `osk-key osk-key-${key.shape}`,
                    hexpand: (key.shape == "space" || key.shape == "expand"),
                    label: key.label,
                    setup: (button) => {
                        let pressed = false;
                        if (key.keytype == "normal") {
                            button.connect('pressed', () => { // mouse down
                                execAsync(`ydotool key ${key.keycode}:1`);
                            });
                            button.connect('clicked', () => { // release
                                execAsync(`ydotool key ${key.keycode}:0`);
                            });
                        }
                        else if (key.keytype == "modkey") {
                            button.connect('pressed', () => { // release
                                if (pressed) {
                                    execAsync(`ydotool key ${key.keycode}:0`);
                                    button.toggleClassName('osk-key-active', false);
                                    pressed = false;
                                }
                                else {
                                    execAsync(`ydotool key ${key.keycode}:1`);
                                    button.toggleClassName('osk-key-active', true);
                                    pressed = true;
                                    modsPressed = true;
                                }
                            });
                        }
                    }
                })
            })
        }))
    })
}

const keyboardWindow = Box({
    vexpand: true,
    hexpand: true,
    vertical: true,
    className: 'osk-window spacing-v-5',
    children: [
        topDecor,
        Box({
            className: 'osk-body spacing-h-10',
            children: [
                keyboardControls,
                separatorLine,
                keyboardItself(keyboardJson),
            ],
        })
    ],
    connections: [[App, (box, name, visible) => { // Update on open
        if (name == 'osk' && visible) {
            keyboardWindow.setCss(`margin-bottom: -0px;`);
        }
    }],],
});

const gestureEvBox = EventBox({ child: keyboardWindow })
const gesture = Gtk.GestureDrag.new(gestureEvBox);
gesture.connect('drag-begin', () => {
    Hyprland.sendMessage('j/cursorpos').then((out) => {
        gesture.startY = JSON.parse(out).y;
    }).catch(print);
});
gesture.connect('drag-update', () => {
    Hyprland.sendMessage('j/cursorpos').then((out) => {
        const currentY = JSON.parse(out).y;
        const offset = gesture.startY - currentY;

        if (offset > 0) return;

        keyboardWindow.setCss(`
            margin-bottom: ${offset}px;
        `);
    }).catch(print);
});
gesture.connect('drag-end', () => {
    var offset = gesture.get_offset()[2];
    if (offset > 50) {
        App.closeWindow('osk');
    }
    else {
        keyboardWindow.setCss(`
            transition: margin-bottom 170ms cubic-bezier(0.05, 0.7, 0.1, 1);
            margin-bottom: 0px;
        `);
    }
})

export default () => gestureEvBox;