// Copyright © SixtyFPS GmbH <info@sixtyfps.io>
// SPDX-License-Identifier: (GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)


import { LineEditInner, TextEdit, AboutSlint } from "../common/common.slint";
import { StandardButton } from "../common/standardbutton.slint";
import { StyleMetrics, ScrollView, Button, Palette  } from "std-widgets-impl.slint";
export { StyleMetrics, ScrollView, Button, StandardButton, TextEdit, AboutSlint }

export CheckBox := Rectangle {
    callback toggled;
    property <string> text;
    property <bool> checked;
    property<bool> enabled <=> touch-area.enabled;
    height: 20px;
    horizontal-stretch: 0;
    vertical-stretch: 0;

    HorizontalLayout {
        spacing: 8px;
        // the check box iteself
        indicator := Rectangle {
            width: 40px;
            border-width: 1px;
            border-radius: root.height / 2;
            border-color: root.enabled ? (root.checked ? Palette.highlight-background : black) : Palette.text-color-disabled;
            background: root.checked ? (root.enabled ? Palette.highlight-background : Palette.text-color-disabled) : white;
            animate background { duration: 100ms; }

            bubble := Rectangle {
                width: root.height - 8px;
                height: bubble.width;
                border-radius: bubble.height / 2;
                y: 4px;
                x: 4px + a * (indicator.width - bubble.width - 8px);
                property <float> a: root.checked ? 1 : 0;
                background: root.checked ? white : (root.enabled ? Palette.button-background : Palette.text-color-disabled);
                animate a, background { duration: 200ms; easing: ease;}
            }
        }

        Text {
            min-width: max(100px, preferred-width);
            text: root.text;
            vertical-alignment: center;
            color: root.enabled ? Palette.text-color : Palette.text-color-disabled;
        }

    }

    touch-area := TouchArea {
        width: root.width;
        height: root.height;
        clicked => {
            if (root.enabled) {
                root.checked = !root.checked;
                root.toggled();
            }
        }
    }

}

SpinBoxButton := Rectangle {
    callback clicked;
    property<string> text;
    property <length> font-size;
    property<bool> enabled <=> touch.enabled;
    border-width: 1px;
    border-radius: 2px;
    border-color: black;
    background: !enabled ? Palette.button-background-disabled : touch.pressed ? Palette.button-pressed : (touch.has-hover ? Palette.button-hover : Palette.button-background);
    animate background { duration: 100ms; }
    touch := TouchArea {
        clicked => {
            root.clicked();
        }
    }
    Text {
        x: enabled && touch.pressed ? 1px : 0px;
        y: enabled && touch.pressed ? 1px : 0px;
        width: parent.width;
        height: parent.height;
        vertical-alignment: center;
        horizontal-alignment: center;
        text: root.text;
        font-size: root.font-size;
        color: root.enabled ? Palette.text-color : Palette.text-color-disabled;
    }
}

export SpinBox := Rectangle {
    callback toggled;
    property <string> text;
    property <bool> checked;
    property <int> value;
    property <int> minimum;
    property <int> maximum: 100;
    property <length> font-size;
    property<bool> enabled: true;

    background: white;

    max-height: 32px;
    min-height: 32px;
    min-width: 120px;
    horizontal-stretch: 1;
    vertical-stretch: 0;

    SpinBoxButton {
        text: "-";
        font-size: root.font-size;
        clicked => {
            if (root.value > root.minimum) {
                root.value -= 1;
            }
        }
        width: parent.height;
        height: parent.height;
        enabled <=> root.enabled;
    }

    plus-button := SpinBoxButton {
        width: parent.height;
        height: parent.height;
        enabled <=> root.enabled;
        x: parent.width - self.width;
        font-size: root.font-size;
        text: "+";
        clicked => {
            if (root.value < root.maximum) {
                root.value += 1;
            }
        }
    }

    Text {
        text: root.value;
        font-size: root.font-size;
        x: parent.height + 15px;
        width: plus-button.x - self.x - 15px;
        height: parent.height;
        horizontal-alignment: center;
        vertical-alignment: center;
        color: root.enabled ? Palette.text-color : Palette.text-color-disabled;
    }
}

export Slider := Rectangle {
    property<float> maximum: 100;
    property<float> minimum: 0;
    property<float> value;
    property<bool> enabled <=> touch-area.enabled;
    callback changed(float);

    max-height: 32px;
    min-height: 32px;
    min-width: 120px;
    horizontal-stretch: 1;
    vertical-stretch: 0;

    slider-filled := Rectangle {
        width: parent.width;
        y: parent.height / 3;
        height: parent.height / 3;
        border-width: 1px;
        border-radius: 2px;
        border-color: black;
        background: root.enabled ? Palette.highlight-background : Palette.text-color-disabled;
    }

    slider-empty := Rectangle {
        y: slider-filled.y;
        x: handle.x;
        width: parent.width - self.x;
        height: slider-filled.height;
        border-width: slider-filled.border-width;
        border-radius: slider-filled.border-radius;
        border-color: slider-filled.border-color;
        background: root.enabled ? Palette.button-background : white;
    }

    handle := Rectangle {
        width: parent.height / 3;
        height: parent.height;
        border-width: 1px;
        border-radius: 3px;
        border-color: black;
        background: (touch-area.pressed && enabled) ? Palette.button-pressed : white;
        animate background { duration: 100ms; }
        x: (root.width - handle.width) * (new-value - minimum)/(maximum - minimum);
        property<float> new-value-tmp : (touch-area.pressed && enabled)
            ? root.value + (touch-area.mouse-x - touch-area.pressed-x) * (maximum - minimum) / (root.width - handle.width)
            : root.value;
        property<float> new-value : new-value-tmp < root.minimum ? root.minimum
            : new-value-tmp > root.maximum ? root.maximum : new-value-tmp;
    }
    touch-area := TouchArea {
        width: parent.width;
        height: parent.height;
        clicked => {
            if (enabled) {
                root.value = handle.new-value;
                root.changed(root.value);
            }
        }
    }
}

export GroupBox := GridLayout {
    property <string> title <=> label.text;
    property<bool> enabled: true;

    spacing: 5px;
    Row {
        label := Text {
            vertical-stretch: 0;
            color: root.enabled ? Palette.text-color : Palette.text-color-disabled;
        }
    }
    Row {
        Rectangle {
            vertical-stretch: 1;
            border-width: 1px;
            border-color: Palette.border-color;
            border-radius: 2px;
            background: white;

            GridLayout {
                padding: 10px;
                @children
            }
        }
    }
}

export TabWidgetImpl := Rectangle {
    property <length> content-x: 0;
    property <length> content-y: tabbar-preferred-height;
    property <length> content-height: height - tabbar-preferred-height;
    property <length> content-width: width;
    property <length> tabbar-x: 0;
    property <length> tabbar-y: 0;
    property <length> tabbar-height: tabbar-preferred-height;
    property <length> tabbar-width: width;

    property <length> tabbar-preferred-height;
    property <length> tabbar-preferred-width;
    property <length> content-min-height;
    property <length> content-min-width;
    property <int> current-index;

    border-width: 1px;
    border-color: Palette.border-color;
    border-radius: 2px;

    preferred-width: content-min-width;
    min-width: content-min-width;
    preferred-height: content-min-height + tabbar-preferred-height;
    min-height: content-min-height + tabbar-preferred-height;

}
export TabImpl := Rectangle {
    property<string> title <=> t.text;
    //property<image> icon;
    property<bool> enabled : true;
    property<bool> pressed;
    property<int> current;
    property<int> tab-index;
    property<int> num-tabs;
    preferred-height: t.preferred-height + 8px;
    preferred-width: t.preferred-width + 12px;

    border-width: 1px;
    border-radius: 2px;
    border-color: black;
    background: !enabled ? Palette.button-background-disabled : (touch.pressed || current == tab-index) ? Palette.button-pressed : (touch.has-hover ? Palette.button-hover : Palette.button-background);
    animate background { duration: 100ms; }
    touch := TouchArea {
        clicked => {
            current = tab-index;
        }
    }
    t:= Text {
        x: enabled && (touch.pressed || current == tab-index) ? 1px : 0px;
        y: enabled && (touch.pressed || current == tab-index) ? 1px : 0px;
        width: parent.width;
        height: parent.height;
        vertical-alignment: center;
        horizontal-alignment: center;
        color: root.enabled ? Palette.text-color : Palette.text-color-disabled;
    }
}

export TabWidget := TabWidget {}

export TabBarImpl := HorizontalLayout {
    alignment: start;
}

export LineEdit := Rectangle {
    property <length> font-size <=> inner.font-size;
    property <string> text <=> inner.text;
    property <string> placeholder-text <=> inner.placeholder-text;
    property <bool> has-focus: inner.has-focus;
    property <bool> enabled <=> inner.enabled;
    callback accepted <=> inner.accepted;
    callback edited <=> inner.edited;
    forward-focus: inner;

    border-color: root.has-focus ? Palette.highlight-background : #ffffff;
    border-radius: 1px;
    border-width: 2px;
    horizontal-stretch: 1;
    vertical-stretch: 0;
    min-height: inner.preferred-height + 12px;
    min-width: 50px;

    GridLayout {
        padding: 3px;

        Rectangle {
            border-color: #ecedeb;
            border-radius: 1px;
            border-width: 1px;
            background: white;

            GridLayout {
                padding: 3px;
                inner := LineEditInner {
                   placeholder-color: Palette.placeholder-text;
                }
            }
        }

    }
}

export ListView := ScrollView {
    @children
}

export StandardListView := ListView {
    property<[StandardListViewItem]> model;
    property<int> current-item: -1;
    for item[idx] in model : Rectangle {
        l := HorizontalLayout {
            padding: 0px;
            spacing: 0px;
            t := Text {
                text: item.text;
                color: Palette.text-color;
            }
        }
        background: current-item == idx ? Palette.highlight-background : transparent;
        TouchArea {
            width: parent.width;
            height: parent.height;
            clicked => { current-item = idx; }
        }
    }
}

export ComboBox := Rectangle {
    property <[string]> model;
    property <int> current-index : -1;
    property <string> current-value;
    //property <bool> is-open: false;
    property<bool> enabled <=> touch-area.enabled;
    callback selected(string);

    border-width: 1px;
    border-radius: 2px;
    border-color: Palette.text-color;
    background: !enabled ? Palette.button-background-disabled : touch-area.pressed ? Palette.button-pressed : (touch-area.has-hover ? Palette.button-hover : Palette.button-background);
    animate background { duration: 100ms; }
    horizontal-stretch: 0;
    vertical-stretch: 0;
    min-width: 170px;

    HorizontalLayout {
        padding-top: root.border-radius + 8px;
        padding-bottom: root.border-radius + 8px;
        padding-left: root.border-radius + 8px;
        padding-right: root.border-radius + 8px;

        t := Text {
            text <=> root.current-value;
            horizontal-alignment: left;
            vertical-alignment: center;
            color: root.enabled ? Palette.text-color : Palette.text-color-disabled;
            horizontal-stretch: 1;
        }
        Text {
            text:"▼";
            color: root.enabled ? Palette.text-color : Palette.text-color-disabled;
            horizontal-stretch: 0;
            vertical-alignment: center;
        }
    }

    touch-area := TouchArea {
        width: 100%;
        height: 100%;
        clicked => {
            //is-open = !is-open;
            popup.show();
        }
    }

    popup := PopupWindow {
        y: root.height;
        width: root.width;
        VerticalLayout {
            spacing: 0px;
            for value[idx] in root.model: Rectangle {
                background: item-area.has-hover ? Palette.highlight-background : Palette.base-background-color;
                VerticalLayout { // FIXME: ideally this layout shouldn't be required
                    Text {
                        text: value;
                    }
                }
                item-area := TouchArea {
                    width: 100%;
                    height: 100%;
                    clicked => {
                        if (root.enabled) {
                            root.current-index = idx;
                            root.current-value = value;
                            root.selected(root.current-value);
                        }
                        //is-open = false;
                    }
                }
            }
        }
    }
}

export VerticalBox := VerticalLayout {
    spacing: StyleMetrics.layout-spacing;
    padding: StyleMetrics.layout-spacing;
}
export HorizontalBox := HorizontalLayout {
    spacing: StyleMetrics.layout-spacing;
    padding: StyleMetrics.layout-spacing;
}
export GridBox := GridLayout {
    spacing: StyleMetrics.layout-spacing;
    padding: StyleMetrics.layout-spacing;
}