// Album card for the Discover sections.
//
// Mirrors the Svelte AlbumCardLite, scaled to a 200px column / 200px artwork
// with a bottom-left award ribbon and a hover overlay (dark scrim,
// genre/year meta, and play / favorite / more action buttons), then a
// tight title / artist stack alongside an icon-only quality badge.
// Deterministic 266px height.
//
// The "more" overlay button opens a context menu; its actions bubble up
// as media-action(kind, id, action).

import { Theme } from "../foundation/semantic-colors.slint";
import { Typography } from "../foundation/typography.slint";
import { Radius } from "../foundation/radius.slint";
import { Spacing } from "../foundation/spacing.slint";
import { AlbumCardItem, NavState } from "../state.slint";
import { QbzIcon } from "../primitives/QbzIcon.slint";
import { QualityBadge } from "../primitives/QualityBadge.slint";
import { ContextMenu } from "../primitives/ContextMenu.slint";
import { ContextMenuItem } from "../primitives/ContextMenuItem.slint";

// Circular hover-overlay action button. Solid (semi-transparent) fill so
// the whole circle is a stable hit/hover surface — an outline-only button
// makes the pointer flicker between the ring and the transparent center.
component OverlayButton inherits Rectangle {
    in property <image> icon;
    in property <bool> primary: false;
    in property <length> diameter: 36px;
    in property <length> icon-size: 16px;
    in property <bool> active: false;
    out property <bool> hovered: ta.has-hover;
    callback clicked();

    width: root.diameter;
    height: root.diameter;
    border-radius: root.diameter / 2;
    background: root.primary
        ? (ta.has-hover ? #ffffffd6 : #ffffff)
        : (ta.has-hover ? #ffffff3d : #ffffff24);
    border-width: root.primary ? 0px : 1.5px;
    border-color: #ffffffcc;

    QbzIcon {
        source: root.icon;
        width: root.icon-size;
        height: root.icon-size;
        x: Math.round((parent.width - self.width) / 2 / 1px) * 1px;
        y: Math.round((parent.height - self.height) / 2 / 1px) * 1px;
        tint: root.active
            ? Theme.accent
            : (root.primary ? #000000 : #ffffff);
    }

    ta := TouchArea {
        mouse-cursor: pointer;
        clicked => {
            root.clicked();
        }
        // Forward the mouse back/forward buttons to history nav (a TouchArea
        // swallows them, so they never reach the AppShell catcher).
        pointer-event(e) => {
            if (e.kind == PointerEventKind.down && e.button == PointerEventButton.back) {
                NavState.request-back();
            }
            if (e.kind == PointerEventKind.down && e.button == PointerEventButton.forward) {
                NavState.request-forward();
            }
        }
    }
}

export component AlbumCard inherits Rectangle {
    in property <AlbumCardItem> album;
    // Hide the favorite heart + its menu item in non-favoritable contexts
    // (e.g. Local Library albums). Mirrors Tauri's AlbumCardLibraryLite.
    in property <bool> show-favorite: true;
    // Always-visible source badge on the artwork (Local Library: local |
    // qobuz-offline | plex). Off elsewhere (single-source catalogs).
    in property <bool> show-source-badge: false;
    // Fade out when the card is being removed (favorites un-favorite).
    opacity: root.album.removing ? 0.0 : 1.0;
    animate opacity { duration: 250ms; }
    callback clicked(string);
    // kind ("album") , album id, action ("play" | "queue" | "favorite").
    callback media-action(string, string, string);

    // Fully deterministic height: artwork 200 + 6 spacer + 40 meta.
    width: 200px;
    height: 246px;

    // The overlay stays up while the pointer is anywhere over the artwork
    // OR over one of its buttons. A child button steals `has-hover` from
    // the artwork detector, so the states are OR-combined.
    property <bool> overlay-on: hover.has-hover
        || fav-btn.hovered || play-btn.hovered || more-btn.hovered;

    VerticalLayout {
        alignment: start;
        spacing: 0px;

        // --- Artwork + hover overlay -------------------------------------
        Rectangle {
            width: 200px;
            height: 200px;
            border-radius: Radius.sm;
            background: Theme.surface-elevated;
            clip: true;

            // Cover art. Empty until the artwork pipeline resolves it,
            // leaving the elevated placeholder visible underneath.
            Image {
                width: 100%;
                height: 100%;
                source: root.album.artwork;
                image-fit: cover;
            }

            // Hover scrim.
            Rectangle {
                width: 100%;
                height: 100%;
                background: #000000;
                opacity: root.overlay-on ? 0.6 : 0.0;
                animate opacity { duration: 150ms; }
            }

            // Hover meta — genre + year, top-left. The year sits one
            // single line below the genre.
            VerticalLayout {
                x: 12px;
                y: 12px;
                spacing: 2px;
                opacity: root.overlay-on ? 1.0 : 0.0;
                animate opacity { duration: 150ms; }

                if root.album.genre != "": Text {
                    text: root.album.genre;
                    height: 20px;
                    color: #ffffffeb;
                    font-size: 13px;
                    font-weight: Typography.bold;
                    vertical-alignment: center;
                }
                if root.album.year != "": Text {
                    text: root.album.year;
                    height: 17px;
                    color: #ffffffcc;
                    font-size: 12px;
                    vertical-alignment: center;
                }
            }

            // Card-open + hover detector. Declared before the action
            // buttons so those, when interactive, win the pointer.
            hover := TouchArea {
                width: 100%;
                height: 100%;
                mouse-cursor: pointer;
                clicked => {
                    root.clicked(root.album.id);
                }
            }

            // Hover action buttons — favorite / play / more.
            HorizontalLayout {
                x: 0px;
                y: 120px;
                width: 200px;
                height: 44px;
                alignment: center;
                spacing: 12px;
                opacity: root.overlay-on ? 1.0 : 0.0;
                animate opacity { duration: 150ms; }

                VerticalLayout {
                    alignment: center;
                    fav-btn := OverlayButton {
                        visible: root.show-favorite;
                        icon: root.album.is-favorite
                            ? @image-url("../assets/icons/heart-filled.svg")
                            : @image-url("../assets/icons/heart.svg");
                        active: root.album.is-favorite;
                        clicked => {
                            root.media-action("album", root.album.id, "favorite");
                        }
                    }
                }
                play-btn := OverlayButton {
                    icon: @image-url("../assets/icons/play-fill.svg");
                    primary: true;
                    diameter: 44px;
                    icon-size: 18px;
                    clicked => {
                        root.media-action("album", root.album.id, "play");
                    }
                }
                VerticalLayout {
                    alignment: center;
                    more-btn := OverlayButton {
                        icon: @image-url("../assets/icons/ellipsis.svg");
                        clicked => {
                            album-menu.show();
                        }
                    }
                }
            }

            // Award ribbon — content-width only (it is a ribbon, not a
            // full-width band), capped so long labels still elide.
            if root.album.ribbon != "": Rectangle {
                x: 0px;
                y: parent.height - self.height - 8px;
                height: 20px;
                // Hug the label; cap below the card width so a runaway
                // label elides instead of spanning the whole card.
                width: Math.min(ribbon-row.preferred-width, 200px);
                background: root.album.ribbon-kind == "press"
                    ? #d49511
                    : #000000e0;
                border-top-right-radius: 3px;
                border-bottom-right-radius: 3px;
                clip: true;

                // Left accent stripe (not on the gold press ribbon).
                Rectangle {
                    x: 0px;
                    width: root.album.ribbon-kind == "press" ? 0px : 3px;
                    background: root.album.ribbon-kind == "qobuzissime"
                        ? #8b5cf6
                        : #eab308;
                }
                ribbon-row := HorizontalLayout {
                    padding-left: 10px;
                    padding-right: 10px;
                    Text {
                        text: root.album.ribbon;
                        color: root.album.ribbon-kind == "press"
                            ? #1f1407
                            : #ffffff;
                        font-size: 9px;
                        font-weight: Typography.semibold;
                        vertical-alignment: center;
                        overflow: elide;
                    }
                }
            }

            // Always-visible source badge (Local Library) — bottom-right of
            // the art, on top of the scrim/buttons. Small rounded square
            // (ADR-008: not a pill). Logos render in their own colors; the
            // hard-drive glyph is tinted white.
            if root.show-source-badge && root.album.source != "": Rectangle {
                x: parent.width - self.width - 6px;
                y: parent.height - self.height - 6px;
                width: 24px;
                height: 24px;
                border-radius: 4px;
                background: root.album.source == "qobuz_download" ? transparent : #000000b3;
                Image {
                    source: root.album.source == "plex"
                        ? @image-url("../assets/icons/plex-logo.svg")
                        : (root.album.source == "qobuz_download"
                            ? @image-url("../assets/icons/qobuz-logo-filled.svg")
                            : @image-url("../assets/icons/hard-drive.svg"));
                    colorize: root.album.source == "local" ? #ffffff : transparent;
                    width: root.album.source == "plex" ? 16px
                        : (root.album.source == "qobuz_download" ? 22px : 14px);
                    height: self.width;
                    x: Math.round((parent.width - self.width) / 2 / 1px) * 1px;
                    y: Math.round((parent.height - self.height) / 2 / 1px) * 1px;
                    image-fit: contain;
                }
            }

            // Context menu for the "more" button.
            album-menu := PopupWindow {
                x: 26px;
                y: 56px;
                width: 196px;
                height: 142px;
                ContextMenu {
                    ContextMenuItem {
                        icon: @image-url("../assets/icons/library-big.svg");
                        label: @tr("Open album");
                        clicked => {
                            root.clicked(root.album.id);
                        }
                    }
                    ContextMenuItem {
                        icon: @image-url("../assets/icons/play.svg");
                        label: @tr("Play");
                        clicked => {
                            root.media-action("album", root.album.id, "play");
                        }
                    }
                    ContextMenuItem {
                        icon: @image-url("../assets/icons/list-plus.svg");
                        label: @tr("Play next");
                        clicked => {
                            root.media-action("album", root.album.id, "play-next");
                        }
                    }
                    ContextMenuItem {
                        icon: @image-url("../assets/icons/list-end.svg");
                        label: @tr("Add to queue");
                        clicked => {
                            root.media-action("album", root.album.id, "queue");
                        }
                    }
                    if root.show-favorite: ContextMenuItem {
                        icon: @image-url("../assets/icons/heart.svg");
                        label: @tr("Add to favorites");
                        clicked => {
                            root.media-action("album", root.album.id, "favorite");
                        }
                    }
                }
            }
        }

        Rectangle { height: 6px; }

        // --- Title / artist + quality badge ------------------------------
        HorizontalLayout {
            height: 40px;
            spacing: Spacing.sm;

            VerticalLayout {
                alignment: center;
                spacing: 2px;
                horizontal-stretch: 1;

                Text {
                    text: root.album.title;
                    height: 20px;
                    color: Theme.text-primary;
                    font-size: Typography.body - 2px;
                    font-weight: Typography.medium;
                    vertical-alignment: center;
                    overflow: elide;
                }
                // Artist name — clickable when an artist id is known,
                // navigating to the artist page (1:1 with Tauri).
                artist-area := TouchArea {
                    height: 18px;
                    mouse-cursor: root.album.artist-id != "" ? pointer : default;
                    clicked => {
                        if (root.album.artist-id != "") {
                            root.media-action("artist", root.album.artist-id, "open");
                        }
                    }
                    artist-text := Text {
                        // Fill the title column and elide. Binding the TouchArea
                        // width to this text's preferred-width clamped the whole
                        // title column to the (often short) artist name, which
                        // truncated titles to a few letters and shoved the quality
                        // badge inward instead of letting it float right.
                        width: 100%;
                        text: root.album.artist;
                        color: root.album.artist-id != "" && artist-area.has-hover
                            ? Theme.text-primary
                            : Theme.text-muted;
                        font-size: Typography.link - 1px;
                        vertical-alignment: center;
                        overflow: elide;
                    }
                }
            }

            // Icon-only quality badge with an exact-quality hover tooltip.
            VerticalLayout {
                alignment: center;
                QualityBadge {
                    tier: root.album.quality-tier;
                    label: root.album.quality-label;
                    detail: root.album.quality-detail;
                }
            }
        }
    }
}