// Copyright © SixtyFPS GmbH <info@slint.dev>
// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-1.0 OR LicenseRef-Slint-commercial

import { Palette, Typography, Icons } from "styling.slint";

component SpinBoxButton {
    callback clicked <=> i-touch-area.clicked;

    in property <image> icon <=> i-icon.source;

    min-width: 28px;
    horizontal-stretch: 0;

    i-background := Rectangle {
        border-radius: 3px;

        i-icon := Image {
            image-fit: contain;
            colorize: Palette.text-secondary;
            width: 12px;

            animate colorize { duration: 150ms; }
        }
    }

    i-touch-area := TouchArea {}

    states [
        pressed when i-touch-area.pressed : {
            i-background.background: Palette.subtle;
        }
    ]
}

export component SpinBox {
    in property <int> minimum;
    in property <int> maximum: 100;
    in property <bool> enabled <=> i-text-input.enabled;
    out property <bool> has-focus <=> i-text-input.has-focus;
    in-out property <int> value;

    min-width: 128px;
    min-height: 30px;
    vertical-stretch: 0;
    horizontal-stretch: 1;
    accessible-role: spinbox;
    accessible-value: root.value;
    accessible-value-minimum: root.minimum;
    accessible-value-maximum: root.maximum;
    accessible-value-step: (root.maximum - root.minimum) / 100;

    i-background := Rectangle {
        border-radius: 4px;
        background: Palette.control-default;
        border-width: 1px;
        border-color: Palette.text-control-border;

        i-layout := HorizontalLayout {
            padding-left: 12px;
            padding-right: 2px;
            padding-top: 4px;
            padding-bottom: 4px;
            spacing: 4px;

            Rectangle {
                clip: true;

                i-text-input := TextInput {
                    vertical-alignment: center;
                    horizontal-alignment: left;
                    color: Palette.text-primary;
                    font-size: Typography.body.font-size;
                    font-weight: Typography.body.font-weight;
                    selection-background-color: Palette.accent-selected-text;
                    selection-foreground-color: self.color;
                    horizontal-stretch: 1;
                    text: root.value;

                    accepted => {
                        if (self.text == "") {
                            root.update-value(root.minimum);
                        }
                    }

                    edited => {
                        if (self.text == "") {
                            root.update-value(root.minimum);
                            return;
                        }

                        if (self.text.is-float()) {
                            root.update-value(root.value + 1);
                            return;
                        }

                        self.text = root.value;
                    }
                }

                i-touch-area := TouchArea {
                    clicked => {
                        i-text-input.focus();
                    }
                }
            }

            SpinBoxButton {
                visible: root.enabled;
                icon: Icons.chevron-up;

                clicked => {
                    root.increment();
                }
            }

            SpinBoxButton {
                visible: root.enabled;
                icon: Icons.chevron-down;

                clicked => {
                    root.decrement();
                }
            }
        }

        i-focus-border := Rectangle {
            x: parent.border-radius;
            y: parent.height - self.height;
            width: parent.width - 2 * parent.border-radius;
            height: 2px;
        }
    }

    function update-value(value: int) {
        if (value < root.minimum || value > root.maximum) {
            return;
        }

        root.value = value;
    }

    function increment() {
        root.update-value(root.value + 1);
        root.update-text();
    }

    function decrement() {
        root.update-value(root.value - 1);
        root.update-text();
    }

    function update-text() {
        i-text-input.text = root.value;
    }

    states [
        disabled when !root.enabled : {
            i-background.background: Palette.control-disabled;
            i-background.border-color: Palette.control-stroke;
            i-text-input.color: Palette.text-disabled;
        }
        focused when root.has-focus : {
            i-background.background: Palette.control-input-active;
            i-background.border-color: Palette.control-stroke;
            i-focus-border.background: Palette.accent-default;
        }
    ]
}