// SPDX-FileCopyrightText: 2024 vivi developers <vivi-ui@tuta.io>
// SPDX-License-Identifier: MIT

import { CheckBoxBase, FocusTouchArea, Border, HorizontalLayoutBase } from "../foundation.slint";
import { StateLayer } from "./state_layer.slint";
import { MagicIcon } from "./magic_icon.slint";
import { MagicText } from "./magic_text.slint";
import {
    MagicPalette,
    MagicFontSettings,
    MagicIconSettings,
    MagicAnimationSettings,
    MagicSizeSettings,
    MagicIconSettings,
    MagicBorderSettings,
    MagicLayoutSettings
} from "./styling.slint";

export component Switch inherits CheckBoxBase {
    in property <string> text;
    in property <image> checked_icon;
    in property <image> unchecked_icon;

    property <length> indicator_padding: 2px;

    style: {
        border_style: {
            background: !root.checked ? MagicPalette.background : MagicPalette.accent_background,
            border_brush: MagicPalette.border,
            border_width: MagicBorderSettings.control_border_width,
        },
        box_style: {
            background: MagicPalette.foreground,
            border_width: MagicBorderSettings.control_border_width,
            border_brush: MagicPalette.border,
        },
        box_icon_style: {
            icon_size: MagicIconSettings.body.icon_size,
            foreground: MagicPalette.accent_foreground,
        },
        text_style: MagicFontSettings.body,
        layout_style: {
            spacing: MagicLayoutSettings.control_spacing,
        }
    };
    min_width: content_layer.min_width;
    forward_focus: touch_area;
    accessible_role: switch;
    accessible_action_default => {
        touch_area.clicked();
    }

    touch_area := FocusTouchArea {
        width: 100%;
        height: 100%;
        enabled: root.enabled;
        mouse_cursor: root.enabled ? pointer : not-allowed;

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

    content_layer := HorizontalLayoutBase {
        style: root.style.layout_style;

        track := Border {
            width: 2 * self.height;
            min_height: MagicSizeSettings.box_height;
            horizontal_stretch: 0;
            style: root.style.border_style;
            border_radius: self.height / 2;

            state_layer := StateLayer {
                width: 100%;
                height: 100%;
                border_radius: track.border-radius;
                pressed: touch_area.pressed || touch_area.enter_pressed;
                has_hover: touch_area.has_hover;
                has_focus: touch_area.has_focus;
            }

            if root.checked_icon.width > 0 && root.checked_icon.height > 0 : MagicIcon {
                x: root.indicator_padding + (indicator.width - self.width) / 2;
                icon: root.checked_icon;
                style: root.style.box_icon_style;
            }


            if root.unchecked_icon.width > 0 && root.unchecked_icon.height > 0 : MagicIcon {
                x: parent.width - root.indicator_padding - (indicator.width - self.width) / 2 - self.width;
                icon: root.unchecked_icon;
                style: root.style.box_icon_style;
                colorize: root.style.text_style.foreground;
            }

            indicator := Border {
                x: root.indicator_padding;
                width: self.height;
                height: parent.height - 2 * root.indicator_padding;
                style: root.style.box_style;
                border_radius: self.height / 2;

                states [
                    checked when root.checked : {
                        x: parent.width - self.width - root.indicator_padding;
                        background: MagicPalette.background;
                    }
                ]

                animate x { duration: MagicAnimationSettings.fast_resize_duration; }
            }

            animate background { duration: MagicAnimationSettings.color_duration; }
        }

        if root.text != "" : MagicText {
            text: root.text;
            style: root.style.text_style;
            vertical_alignment: center;
        }
    }

    states [
        disabled when !root.enabled : {
            root.opacity: 0.5;
        }
    ]
}