// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

import Quickshell
import Quickshell.Widgets
import QtQuick
import ".."
import "../modules/sound"
import "../modules/sonix/Sonix.js" as S

// The Sonix player's controls: cover, title, heart, quality, seek,
// transport, volume, mode, battery. Polls only while open (Sonix.hold).
Column {
    id: panel

    property bool open: false
    signal close()

    readonly property var p: Sonix.player
    readonly property bool live: Sonix.present && Sonix.error === ""

    function glyph(cp) { return String.fromCodePoint(cp); }

    onOpenChanged: open ? Sonix.hold() : Sonix.release()
    Component.onDestruction: if (open) Sonix.release()

    // Position runs locally between polls; each poll resets it.
    property real pos: 0
    // The heart and volume show the local value until a poll agrees, the
    // command fails, or overrideExpiry fires.
    property var favOverride: null
    Connections {
        target: Sonix
        function onPlayerChanged() {
            panel.pos = Sonix.player.position || 0;
            if (panel.favOverride !== null && !!Sonix.player.favourite === panel.favOverride) panel.favOverride = null;
            if (panel.pendingVol >= 0 && !volSend.running && Sonix.player.volume === panel.pendingVol) panel.pendingVol = -1;
        }
    }
    Timer {
        id: overrideExpiry
        interval: 3000
        onTriggered: { panel.favOverride = null; if (!volSend.running) panel.pendingVol = -1; }
    }
    Timer {
        interval: 1000; repeat: true
        running: panel.open && panel.p.state === 1
        onTriggered: panel.pos = Math.min(panel.pos + 1, panel.p.duration || 0)
    }

    // Volume is sent once the slider settles.
    property int pendingVol: -1
    readonly property int shownVol: pendingVol >= 0 ? pendingVol : (p.volume || 0)
    Timer {
        id: volSend
        interval: 400
        onTriggered: {
            const v = panel.pendingVol;
            if (v < 0) return;
            Sonix.command({ do: "volume", value: v }, null,
                (ok, d, err) => { panel.report(ok, d, err); if (!ok) panel.pendingVol = -1; });
            overrideExpiry.restart();
        }
    }

    property string error: ""
    function report(ok, d, err) { panel.error = ok ? "" : err; }

    // The art is prepared on demand: a 202 first, then the picture. Retried
    // a few times with a cache-busting counter.
    property int artTry: 0
    readonly property string artUrl: p.path
        ? `${Sonix.base}/api/art?${S.query({ path: p.path, max: 256 })}&t=${artTry}` : ""
    readonly property string artPath: p.path || ""
    onArtPathChanged: { artTry = 0; artRetry.stop(); favOverride = null; }
    Timer { id: artRetry; interval: 1000; onTriggered: panel.artTry++ }

    spacing: 14

    // --- header ----------------------------------------------------------

    Item {
        width: panel.width
        height: 26

        IconImage {
            id: headIcon
            anchors.verticalCenter: parent.verticalCenter
            implicitSize: 22
            source: Quickshell.iconPath("multimedia-player", true)
        }

        Text {
            textFormat: Text.PlainText
            anchors {
                left: headIcon.right; leftMargin: 10; right: battery.left; rightMargin: 8
                verticalCenter: parent.verticalCenter
            }
            elide: Text.ElideRight
            text: (Sonix.name || "Sonix").toUpperCase()
            font { family: Theme.fontFamily; pixelSize: Theme.fontSize - 1; letterSpacing: 2 }
            color: Theme.text
        }

        Text {
            id: battery
            anchors { right: closeGlyph.left; rightMargin: 12; verticalCenter: parent.verticalCenter }
            visible: panel.p.battery !== undefined
            text: panel.p.battery + "%" + (panel.p.charging ? " " + panel.glyph(0xF0241) : "")  // md-flash
            font { family: Theme.fontFamily; pixelSize: Theme.fontSize - 3 }
            color: panel.p.battery <= 15 && !panel.p.charging ? Theme.red : Theme.subtext
        }

        Text {
            id: closeGlyph
            anchors { right: parent.right; verticalCenter: parent.verticalCenter }
            text: panel.glyph(0xF0156)  // md-close
            font { family: Theme.iconFamily; pixelSize: 18 }
            color: closeHit.containsMouse ? Theme.text : Theme.subtext
            MouseArea {
                id: closeHit
                anchors.fill: parent
                hoverEnabled: true
                cursorShape: Qt.PointingHandCursor
                onClicked: panel.close()
            }
        }
    }

    Text {
        visible: !panel.live
        width: panel.width
        wrapMode: Text.Wrap
        text: !Sonix.present ? "The player is not on the network." : "Not answering: " + Sonix.error
        font { family: Theme.fontFamily; pixelSize: Theme.fontSize - 3 }
        color: Theme.subtext
    }

    // --- now playing ------------------------------------------------------

    Row {
        width: panel.width
        spacing: 12
        enabled: panel.live

        Rectangle {
            width: 72; height: 72; radius: 8
            color: Theme.surface
            clip: true
            Image {
                anchors.fill: parent
                source: panel.artUrl
                cache: false
                asynchronous: true
                fillMode: Image.PreserveAspectCrop
                onStatusChanged: if (status === Image.Error && panel.artTry < 3) artRetry.restart()
            }
        }

        Column {
            width: panel.width - 72 - 12
            spacing: 3

            Item {
                width: parent.width
                height: titleText.implicitHeight
                Text {
                    textFormat: Text.PlainText
                    id: titleText
                    anchors { left: parent.left; right: heart.left; rightMargin: 6 }
                    elide: Text.ElideRight
                    text: panel.p.title || (panel.p.state ? "" : "Nothing playing")
                    font { family: Theme.fontFamily; pixelSize: Theme.fontSize; bold: true }
                    color: Theme.text
                }
                Text {
                    id: heart
                    readonly property bool fav: panel.favOverride !== null ? panel.favOverride : !!panel.p.favourite
                    anchors.right: parent.right
                    visible: !!panel.p.path
                    text: panel.glyph(fav ? 0xF02D1 : 0xF02D5)  // md-heart / md-heart_outline
                    font { family: Theme.iconFamily; pixelSize: 18 }
                    color: fav ? Theme.accent : Theme.subtext
                    MouseArea {
                        anchors.fill: parent
                        cursorShape: Qt.PointingHandCursor
                        onClicked: {
                            const want = !heart.fav;
                            panel.favOverride = want;
                            overrideExpiry.restart();
                            Sonix.command({ do: "favourite", path: panel.p.path, value: want ? 1 : 0 }, null,
                                (ok, d, err) => { panel.report(ok, d, err); if (!ok) panel.favOverride = null; });
                        }
                    }
                }
            }
            Text {
                textFormat: Text.PlainText
                width: parent.width
                elide: Text.ElideRight
                text: [panel.p.artist, panel.p.album].filter(s => s).join(" · ")
                font { family: Theme.fontFamily; pixelSize: Theme.fontSize - 3 }
                color: Theme.subtext
            }
            Text {
                textFormat: Text.PlainText
                width: parent.width
                elide: Text.ElideRight
                text: S.qualityLine(panel.p) + (panel.p.lossless && panel.p.path ? "  lossless" : "")
                font { family: Theme.fontFamily; pixelSize: Theme.fontSize - 4 }
                color: Theme.subtext
            }
        }
    }

    // --- seek -------------------------------------------------------------

    Item {
        width: panel.width
        height: 22
        enabled: panel.live && (panel.p.duration || 0) > 0

        Rectangle {
            id: track
            anchors { left: parent.left; right: parent.right; top: parent.top }
            height: 6; radius: 3
            color: Theme.surface
            Rectangle {
                height: parent.height; radius: parent.radius
                width: parent.width * (panel.p.duration ? Math.min(1, panel.pos / panel.p.duration) : 0)
                color: Theme.accent
            }
            MouseArea {
                anchors { fill: parent; topMargin: -6; bottomMargin: -6 }
                cursorShape: Qt.PointingHandCursor
                onClicked: mouse => {
                    const s = Math.round(mouse.x / width * panel.p.duration);
                    panel.pos = s;
                    Sonix.command({ do: "seek", value: s }, null, panel.report);
                }
            }
        }
        Text {
            anchors { left: parent.left; bottom: parent.bottom }
            text: S.clock(panel.pos)
            font { family: Theme.fontFamily; pixelSize: Theme.fontSize - 5 }
            color: Theme.subtext
        }
        Text {
            anchors { right: parent.right; bottom: parent.bottom }
            text: S.clock(panel.p.duration || 0)
            font { family: Theme.fontFamily; pixelSize: Theme.fontSize - 5 }
            color: Theme.subtext
        }
    }

    // --- transport and mode -----------------------------------------------

    Item {
        width: panel.width
        height: 30
        enabled: panel.live

        Row {
            anchors.centerIn: parent
            spacing: 14
            TransportButton { glyph: "\uF048"; onClicked: Sonix.command({ do: "prev" }, null, panel.report) }
            TransportButton {
                glyph: panel.p.state === 1 ? "\uF04C" : "\uF04B"
                onClicked: Sonix.command({ do: "toggle" }, null, panel.report)
            }
            TransportButton { glyph: "\uF051"; onClicked: Sonix.command({ do: "next" }, null, panel.report) }
        }

        TransportButton {
            anchors { left: parent.left; verticalCenter: parent.verticalCenter }
            glyph: panel.glyph(S.shuffleGlyph(panel.p.mode))
            onClicked: Sonix.command({ do: "mode", value: S.toggleShuffle(panel.p.mode) }, null, panel.report)
        }

        TransportButton {
            anchors { right: parent.right; verticalCenter: parent.verticalCenter }
            glyph: panel.glyph(S.repeatGlyph(panel.p.mode))
            onClicked: Sonix.command({ do: "mode", value: S.nextRepeat(panel.p.mode) }, null, panel.report)
        }
    }

    PanelSlider {
        width: panel.width
        enabled: panel.live
        icon: "audio-volume-high"
        value: panel.shownVol / 100
        label: panel.shownVol + "%"
        onMoved: v => { panel.pendingVol = Math.round(v * 100); volSend.restart(); }
        onStepped: d => {
            panel.pendingVol = Math.max(0, Math.min(100, panel.shownVol + d * 5));
            volSend.restart();
        }
    }

    Text {
        visible: panel.error !== ""
        width: panel.width
        wrapMode: Text.Wrap
        text: panel.error
        font { family: Theme.fontFamily; pixelSize: Theme.fontSize - 4 }
        color: Theme.red
    }
}