LibrePCB

import {
    Badge,
    Button,
    FilterTermEdit,
    IconButton,
    LinkText,
    ListScrollView,
    MessagePopup,
    PanelHeader,
    ProgressBar,
    Switch,
} from "../widgets.slint";
import {
    Action,
    Backend,
    Data,
    LibraryAction,
    LibraryInfoData,
    LibraryListData,
} from "../api.slint";

component LibraryUninstallPopup inherits MessagePopup {
    in-out property <[LibraryInfoData]> model;
    in property <int> index;

    title: @tr("Uninstall {}", model[index].name);
    arrow: left;
    has-ok: false;
    has-yes: true;
    has-cancel: true;

    Text {
        font-weight: 700;
        color: root.text-color;
        text: @tr("Attention").to-uppercase() + ": " + @tr("This will remove the whole library directory and is not reversible:");
    }

    Text {
        font-family: "monospace";
        color: root.text-color;
        wrap: word-wrap;
        text: model[index].path;
    }

    Text {
        color: root.text-color;
        text: @tr("Are you really sure to remove '{}'?", model[index].name);
    }

    accepted => {
        Backend.trigger-library(model[index].path, LibraryAction.uninstall);
        self.close();
    }
}

component LibraryListViewItem inherits Rectangle {
    in-out property <[LibraryInfoData]> model;
    in property <int> index;
    in property <bool> remote: false;
    in property <bool> is-current: false;
    in property <bool> enabled: true;
    property <LibraryInfoData> lib: model[index];
    property <bool> has-switch: remote && (!lib.uuid.is-empty);
    property <bool> buttons-visible: ta.has-hover || is-current;

    property <string> status-text;
    property <color> status-color;
    property <image> status-icon;
    states [
        duplicate when lib.duplicate: {
            status-text: @tr("Duplicate, will be removed");
            status-color: Data.theme.base-text-warning;
            status-icon: @image-url("../../../font-awesome/svgs/solid/triangle-exclamation.svg");
        }
        outdated when lib.outdated: {
            status-text: @tr("Outdated:") + " v" + lib.installed-version + " < v" + lib.online-version;
            status-color: Data.theme.base-text-error;
            status-icon: @image-url("../../../font-awesome/svgs/solid/angles-up.svg");
        }
        up-to-date when (!lib.installed-version.is-empty) && (!lib.online-version.is-empty): {
            status-text: @tr("Up-to-date:") + " v" + lib.installed-version;
            status-color: Data.theme.base-text-success;
            status-icon: @image-url("../../../font-awesome/svgs/solid/check.svg");
        }
    ]

    background: {
        if !enabled {
            Data.theme.control-disabled
        } else if is-current {
            Data.theme.control-checked
        } else if ta.has-hover {
            Data.theme.control-hovered
        } else {
            Data.theme.control
        }
    };
    border-color: Data.theme.accent;
    border-width: lib.highlight ? 1px : 0;

    // Accessibility
    accessible-role: list-item;
    accessible-description: lib.description;
    accessible-enabled: self.enabled;
    accessible-label: lib.name;
    accessible-item-selectable: true;
    accessible-item-selected: is-current;
    accessible-item-index: index;
    accessible-action-default => {
        ta.double-clicked();
    }

    callback clicked <=> ta.clicked;
    callback uninstall-clicked(index: int);

    init => {
        if lib.highlight {
            clicked();  // Make sure the library is visible in the view.
        }
    }

    if has-switch && (lib.outdated || (lib.installed-version.is-empty == lib.checked)): Rectangle {
        x: parent.width - self.width;
        y: 0;
        width: 12px;
        height: self.width;

        Path {
            commands: "M 100 100 L 100 0 L 0 0 Z";
            fill: Data.theme.base-text-warning;
        }
    }

    ta := TouchArea {
        enabled: root.enabled;

        HorizontalLayout {
            padding: 2px;
            padding-left: 4px;
            padding-right: 9px;
            spacing: 3px;

            img := Image {
                width: root.height - 6px;
                height: root.height - 6px;
                image-fit: contain;
                source: lib.icon;
                accessible-role: none;
            }

            VerticalLayout {
                z: 100;  // For the tooltips.
                horizontal-stretch: 1;
                padding: 3px;

                HorizontalLayout {
                    z: 100;  // For the tooltips.
                    vertical-stretch: 0;
                    spacing: 5px;
                    alignment: start;

                    name-txt := Text {
                        horizontal-stretch: 0;
                        color: {
                            if !enabled {
                                Data.theme.control-text-muted
                            } else {
                                Data.theme.control-text
                            }
                        };
                        font-size: 13px;
                        font-weight: 700;
                        vertical-alignment: bottom;
                        overflow: elide;
                        text: lib.name;
                        accessible-role: none;
                    }

                    if !status-text.is-empty: status-btn := IconButton {
                        height: 13px;
                        width: self.height;
                        style: read-only;
                        icon: status-icon;
                        tooltip: status-text;
                        color-disabled: status-color.with-alpha(0.5);
                        color-enabled: status-color;
                        enabled: enabled;
                    }

                    if status-text.is-empty && buttons-visible: version-txt := Text {
                        horizontal-stretch: 0;
                        color: name-txt.color;
                        font-size: 10px;
                        vertical-alignment: bottom;
                        text: "v" + (lib.installed-version.is-empty ? lib.online-version : lib.installed-version);
                        accessible-role: none;
                    }
                }

                if lib.progress == 0: description-txt := Text {
                    vertical-stretch: 1;
                    vertical-alignment: center;
                    color: name-txt.color;
                    font-size: 10px;
                    overflow: TextOverflow.elide;
                    wrap: word-wrap;
                    text: lib.description;
                    accessible-role: none;
                }

                if lib.progress > 0: Rectangle {
                    progress-bar := ProgressBar {
                        height: 5px;
                        progress: lib.progress / 100;
                        accessible-role: none;
                    }
                }
            }

            if remote && lib.recommended && lib.installed-version.is-empty: recommended-btn := IconButton {
                z: 100;
                width: 16px;
                style: read-only;
                icon: @image-url("../../../font-awesome/svgs/solid/star.svg");
                tooltip: @tr("Recommended");
                tooltip-position: left;
                color-disabled: self.color-enabled.with-alpha(0.5);
                color-enabled: Data.theme.base-text-warning;
                enabled: enabled;
                accessible-role: none;
            }

            if !has-switch: uninstall-btn := IconButton {
                width: 18px;
                style: hyperlink;
                icon: @image-url("../../../font-awesome/svgs/solid/trash-can.svg");
                tooltip: @tr("Uninstall");
                tooltip-position: left;
                enabled: enabled;
                visible: buttons-visible;  // Only hide to avoid layout changes on hover.

                clicked => {
                    root.clicked();
                    uninstall-clicked(index);
                }
            }

            if has-switch: checked-sw := Switch {
                // Avoid disconnecting from model when toggling.
                property <bool> lib-checked: lib.checked;
                changed lib-checked => {
                    self.checked = lib-checked;
                }

                horizontal-stretch: 0;
                checked: lib-checked;
                enabled: enabled;
                read-only: lib.duplicate;
                focusable: false;
                accessible-label: "use library";

                states [
                    install when lib.installed-version.is-empty && lib.checked: {
                        checked-color: Data.theme.accent;
                        checked-knob-color: Data.theme.accent-text;
                    }
                    update when (!lib.installed-version.is-empty) && lib.outdated && lib.checked: {
                        checked-color: Data.theme.info;
                        checked-knob-color: Data.theme.info-text;
                    }
                    uninstall when (!lib.installed-version.is-empty) && (!lib.checked): {
                        unchecked-color: Data.theme.error;
                        unchecked-knob-color: Data.theme.error-text;
                    }
                    unchanged when (!lib.outdated) && (lib.installed-version.is-empty != lib.checked): {
                        checked-color: Data.theme.accent;
                        unchecked-color: Data.theme.control-checked;
                        unchecked-knob-color: Data.theme.control-text-muted;
                    }
                ]

                toggled(checked) => {
                    model[index].checked = checked;
                }
            }
        }

        double-clicked => {
            if !lib.path.is-empty {
                Backend.trigger-library(lib.path, LibraryAction.open);
            }
        }
    }
}

component LibrariesPanelSection inherits FocusScope {
    in property <string> title;
    in property <string> title-count;
    in-out property <[LibraryInfoData]> libraries;
    in property <LibraryListData> data;
    in property <bool> remote;
    in property <int> min-items-height: 1;
    property <int> current-index: -1;
    property <length> item-height: 50px;

    min-height: l.min-height + max(min(libraries.length, min-items-height) - 1, 0) * item-height;

    function set-current-index(index: int) {
        if (index + 1) * item-height > view.height - view.content-y {
            view.content-y = -(index + 1) * item-height + view.height;
        } else if index * item-height < -(view.content-y) {
            view.content-y = -(index * item-height);
        }
        current-index = index;
    }

    function uninstall-library(index: int) {
        set-current-index(index);  // Update current-index & scroll to item.
        uninstall-popup.show();
    }

    l := VerticalLayout {
        alignment: start;

        header := PanelHeader {
            z: 10;  // For the tooltip.
            title: title + " (" + title-count + ")";
            highlight: root.has-focus;
            show-spinner: data.refreshing;

            if remote && (!data.refreshing) && (self.max-buttons >= 5): LinkText {
                width: self.preferred-width + 2px;
                horizontal-alignment: left;
                vertical-alignment: center;
                font-size: 10px;
                text-color: Data.theme.control-text-muted;
                text: @tr("Toggle All");
                enabled: root.enabled;

                clicked => {
                    Backend.trigger(Action.library-panel-toggle-all);
                }
            }

            if remote: Rectangle {
                width: 2px;
            }

            if !data.refreshing-error.is-empty: IconButton {
                width: self.height;
                style: read-only;
                icon: @image-url("../../../font-awesome/svgs/solid/triangle-exclamation.svg");
                icon-scale: 0.7;
                color-disabled: self.color-enabled.darker(1);
                color-enabled: Data.theme.base-text-warning;
                tooltip: data.refreshing-error;
                enabled: root.enabled;
            }

            if !remote: download-by-url-btn := IconButton {
                width: self.height;
                icon: @image-url("../../../bootstrap-icons/icons/cloud-arrow-down-fill.svg");
                icon-scale: 0.7;
                tooltip: @tr("Download a Library by URL") + "...";
                enabled: root.enabled;

                clicked => {
                    Backend.trigger(Action.library-download);
                }
            }

            if !remote: create-btn := IconButton {
                width: self.height;
                icon: @image-url("../../../font-awesome/svgs/solid/plus.svg");
                icon-scale: 0.7;
                tooltip: @tr("Create a New Library") + "...";
                enabled: root.enabled;

                clicked => {
                    Backend.trigger(Action.library-create);
                }
            }

            property <bool> check-for-updates-enabled: true;
            if remote && (!data.refreshing): check-for-updates-btn := IconButton {
                width: self.height;
                icon: @image-url("../../../font-awesome/svgs/solid/rotate.svg");
                icon-scale: 0.65;
                tooltip: @tr("Check For Updates");
                enabled: root.enabled && check-for-updates-enabled;

                clicked => {
                    check-for-updates-enabled = false;  // DoS attack prevention ;-)
                    Backend.trigger(Action.library-panel-check-for-updates);
                }
            }

            if remote && data.refreshing: cancel-update-check-btn := IconButton {
                width: self.height;
                icon: @image-url("../../../font-awesome/svgs/solid/ban.svg");
                icon-scale: 0.7;
                tooltip: @tr("Cancel Update Check");

                clicked => {
                    Backend.trigger(Action.library-panel-cancel-update-check);
                }
            }
        }

        // Show a recommendation to install remote libraries if none are
        // installed. However, if several local libraries are installed, do not
        // shot the recommendation as this is a sign that the user has installed
        // all the libraries (even the official ones) with Git (the typical
        // development setup for library contributors).
        if remote && (data.installed == 0) && (data.count > 0) && (Data.local-libraries-data.count < 5): HorizontalLayout {
            padding: 8px;

            Rectangle {
                height: no-remote-libs-installed-txt.height;
                background: Data.theme.warning;
                border-radius: 5px;

                no-remote-libs-installed-txt := Text {
                    x: 6px;
                    width: parent.width - (2 * self.x);
                    height: self.preferred-height + (2 * self.x);
                    font-italic: true;
                    wrap: word-wrap;
                    color: Data.theme.warning-text;
                    vertical-alignment: center;
                    text: @tr("No remote part libraries are currently installed. To get parts like resistors, LEDs, microcontrollers etc., choose some libraries to be downloaded from the internet.");
                }
            }
        }

        if (!remote) && (data.count == 0): HorizontalLayout {
            padding: 8px;

            no-local-libs-installed-txt := Text {
                color: Data.theme.control-text;
                font-italic: true;
                wrap: word-wrap;
                text: @tr("No local libraries exist in this workspace. In order to create your own parts, add a new local library first with the button above.");
            }
        }

        if (!Data.libraries-panel-filter.is-empty) && (libraries.length == 0) && (data.installed > 0): HorizontalLayout {
            padding: 8px;

            no-libs-matching-filter-txt := Text {
                color: Data.theme.control-text-muted;
                font-italic: true;
                wrap: word-wrap;
                text: @tr("No libraries matching the filter.");
            }
        }

        view := ListScrollView {
            property <int> item-count: libraries.length;

            vertical-stretch: 0;
            min-height: item-height;
            preferred-height: libraries.length * item-height;
            content-height: libraries.length * item-height;
            force-show-scrollbars: root.has-focus;

            // Accessibility
            accessible-role: list;
            accessible-item-count: libraries.length;

            changed item-count => {
                if !Data.libraries-panel-filter.is-empty {
                    self.content-y = 0;
                    current-index = (item-count > 0) ? 0 : -1;
                }
            }

            for lib[index] in libraries: LibraryListViewItem {
                width: parent.width;
                height: item-height;
                model: libraries;
                index: index;
                remote: remote;
                is-current: index == current-index;
                enabled: root.enabled;

                clicked => {
                    set-current-index(index);
                    root.focus();
                }

                uninstall-clicked(index) => {
                    uninstall-library(index);
                }
            }
        }
    }

    key-pressed(event) => {
        if event.text == Key.DownArrow {
            set-current-index(min(current-index + 1, libraries.length - 1));
            return accept;
        } else if event.text == Key.UpArrow {
            set-current-index(max(current-index - 1, 0));
            return accept;
        } else if event.modifiers.control && (event.text == "a") {
            Backend.trigger(Action.library-panel-toggle-all);
            return accept;
        } else if (event.text == Key.Escape) && remote && (Data.remote-libraries-pending-operations > 0) {
            Backend.trigger(Action.library-panel-cancel);
            return accept;
        } else if event.modifiers.control && (event.text == Key.Return) && remote && (Data.remote-libraries-pending-operations > 0) {
            Backend.trigger(Action.library-panel-apply);
            return accept;
        } else if (current-index >= 0) && (current-index < libraries.length) {
            if (event.text == Key.Return) && (!libraries[current-index].path.is-empty) {
                Backend.trigger-library(libraries[current-index].path, LibraryAction.open);
                return accept;
            } else if event.text == Key.Delete {
                uninstall-library(current-index);
            } else if (event.text == Key.Space) && remote && (!libraries[current-index].uuid.is-empty) {
                libraries[current-index].checked = !libraries[current-index].checked;
                return accept;
            } else if (event.text == Key.Delete) && remote && (!libraries[current-index].uuid.is-empty) {
                libraries[current-index].checked = false;
                return accept;
            }
        }
        Backend.libraries-key-pressed(event)
    }

    uninstall-popup := LibraryUninstallPopup {
        x: root.width;
        y: view.y + (current-index * item-height) + (item-height / 2) - (self.height / 2) + view.content-y;
        model: libraries;
        index: current-index;
    }
}

export component LibrariesPanel inherits VerticalLayout {
    forward-focus: local-libs;

    init => {
        Backend.trigger(Action.library-panel-ensure-populated);
        local-libs.focus();
    }

    local-libs := LibrariesPanelSection {
        property <length> max-height-impl: (root.height * self.preferred-height) / (self.preferred-height + remote-libs.preferred-height);

        vertical-stretch: 0;
        max-height: (self.preferred-height > max-height-impl) ? max-height-impl : self.preferred-height;
        title: @tr("Local Libraries").to-uppercase();
        title-count: Data.local-libraries-data.count;
        libraries: Data.local-libraries;
        data: Data.local-libraries-data;
        remote: false;
        min-items-height: (root.height >= 500px) ? 3 : 1;
        enabled: !Data.libraries-operation-in-progress;
    }

    Rectangle {
        height: 20px;
    }

    remote-libs := LibrariesPanelSection {
        vertical-stretch: 1;
        title: @tr("Remote Libraries").to-uppercase();
        title-count: Data.remote-libraries-data.installed + "/" + Data.remote-libraries-data.count;
        libraries: Data.remote-libraries;
        data: Data.remote-libraries-data;
        remote: true;
        enabled: (!Data.libraries-operation-in-progress) && (!Data.remote-libraries-data.refreshing);
    }

    Rectangle {
        property <bool> show: Data.preview-mode ? Data.remote-libraries[0].checked : (Data.remote-libraries-pending-operations > 0);

        height: show ? self.preferred-height : 0;
        background: Data.theme.window;

        // Clip for the slide-in/out effect, but do not clip in steady
        // state for the tooltips.
        clip: self.height != self.preferred-height;

        animate height { duration: 150ms; }

        Rectangle {
            y: 0;
            height: 1px;
            background: Data.theme.base-border;
        }

        VerticalLayout {
            spacing: 8px;
            padding-bottom: 8px;

            HorizontalLayout {
                padding-top: 5px;
                padding-left: 8px;
                padding-right: 3px;
                spacing: 3px;
                z: 10;  // For the tooltips.

                Rectangle {
                    Text {
                        x: 0;
                        y: (parent.height - self.height) / 2 + 1px;
                        width: 100%;
                        height: 100%;
                        font-weight: 700;
                        overflow: elide;
                        vertical-alignment: center;
                        color: Data.theme.base-text;
                        text: @tr("Pending Operations").to-uppercase();
                        accessible-role: none;
                    }
                }

                if Data.remote-libraries-data.pending-installs > 0: pending-installs-badge := Badge {
                    font-weight: 700;
                    font-size: 12px;
                    border-width: 0;
                    background: Data.theme.accent;
                    text-color: Data.theme.accent-text;
                    text: "+" + Data.remote-libraries-data.pending-installs;
                }

                if Data.remote-libraries-data.pending-updates > 0: pending-updates-badge := Badge {
                    font-weight: 700;
                    font-size: 12px;
                    border-width: 0;
                    background: Data.theme.info;
                    text-color: Data.theme.info-text;
                    text: "↑" + Data.remote-libraries-data.pending-updates;
                }

                if Data.remote-libraries-data.pending-uninstalls > 0: pending-uninstalls-badge := Badge {
                    font-weight: 700;
                    font-size: 12px;
                    border-width: 0;
                    background: Data.theme.error;
                    text-color: Data.theme.error-text;
                    text: "–" + Data.remote-libraries-data.pending-uninstalls;
                }
            }

            VerticalLayout {
                padding-left: 8px;
                padding-right: 8px;
                spacing: 8px;

                if Data.remote-libraries-data.pending-oneway-uninstalls > 0: Rectangle {
                    height: nonreversible-warning-txt.preferred-height + 12px;
                    border-radius: 5px;
                    background: Data.theme.error;

                    nonreversible-warning-txt := Text {
                        width: parent.width - 12px;
                        color: Data.theme.error-text;
                        font-weight: 700;
                        horizontal-alignment: left;
                        wrap: word-wrap;
                        text: @tr("Warning").to-uppercase() + ": " + @tr("Some libraries marked for uninstallation are currently not available for installation, thus their deletion will be non-reversible!");
                    }
                }

                HorizontalLayout {
                    spacing: 6px;

                    apply-btn := Button {
                        horizontal-stretch: 1;
                        icon: {
                            if Data.remote-libraries-data.pending-oneway-uninstalls > 0 {
                                @image-url("../../../font-awesome/svgs/solid/triangle-exclamation.svg");
                            } else {
                                @image-url("../../../font-awesome/svgs/solid/check.svg");
                            }
                        };
                        text: (root.width > 300px) ? @tr("" | "Apply {n} Modification(s)" % Data.remote-libraries-pending-operations) : @tr("Apply");
                        primary: Data.remote-libraries-data.pending-oneway-uninstalls == 0;
                        border-color: {
                            if !self.enabled {
                                Data.theme.control-border-disabled
                            } else if (Data.remote-libraries-data.pending-oneway-uninstalls > 0) {
                                Data.theme.base-text-error.with-alpha(self.has-focus ? 1 : 0.5)
                            } else if self.has-focus {
                                Data.theme.accent
                            } else {
                                Data.theme.control-border
                            }
                        };
                        enabled: !Data.libraries-operation-in-progress;

                        clicked => {
                            Backend.trigger(Action.library-panel-apply);
                        }
                    }

                    cancel-btn := Button {
                        horizontal-stretch: 0;
                        text: @tr("Cancel");

                        clicked => {
                            Backend.trigger(Action.library-panel-cancel);
                        }
                    }
                }
            }
        }
    }

    if !Data.libraries-panel-filter.is-empty: Rectangle {
        background: Data.theme.window;

        Rectangle {
            y: 0;
            height: 1px;
            background: Data.theme.base-border;
        }

        filter-l := HorizontalLayout {
            padding: 5px;

            filter-edt := FilterTermEdit {
                height: self.preferred-height;
                term: Data.libraries-panel-filter;

                animate height { duration: 100ms; }

                clear-clicked => {
                    Backend.libraries-key-pressed({ text: Key.Escape })
                }
            }
        }
    }
}