//
//  PlayerView.swift
//
//  Copyright 2026 Brendan Szymanski <hello@bscubed.dev>
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  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.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
//
//  SPDX-License-Identifier: GPL-3.0-or-later
//

import Adwaita
import Foundation
import LuminateCore

public struct PlayerView: View {

    public var item: Components.Schemas.BaseItemDto
    public var client: JellyfinClient
    public var userId: String
    public var mediaSourceId: String
    public var playSessionId: String
    public var streamURL: URL
    @State private var isPlaying = true
    @State private var position: Double = 0
    @State private var duration: Double = 0
    @State private var showControls = true
    public var onClose: () -> Void

    public init(
        item: Components.Schemas.BaseItemDto,
        client: JellyfinClient,
        userId: String,
        mediaSourceId: String,
        playSessionId: String,
        streamURL: URL,
        onClose: @escaping () -> Void
    ) {
        self.item = item
        self.client = client
        self.userId = userId
        self.mediaSourceId = mediaSourceId
        self.playSessionId = playSessionId
        self.streamURL = streamURL
        self.onClose = onClose
    }

    public var view: Body {
        VStack {
            VideoPlayerWidget(
                url: streamURL.absoluteString,
                isPlaying: $isPlaying,
                position: $position,
                duration: $duration
            )
            .hexpand(true)
            .vexpand(true)
            if showControls {
                PlayerControls(
                    isPlaying: $isPlaying,
                    position: $position,
                    duration: $duration,
                    onTogglePlay: { isPlaying.toggle() },
                    onSeekBack: { position = max(0, position - 10) },
                    onSeekForward: { position = min(duration, position + 10) },
                    onFullscreen: {},
                    onClose: {
                        stopPlayback()
                        onClose()
                    }
                )
            }
        }
    }

    private func startPlayback() {
        Task {
            try? await client.reportPlaybackStart(
                info: .init(
                    itemId: item.id,
                    mediaSourceId: mediaSourceId,
                    playSessionId: playSessionId
                )
            )
        }
    }

    private func stopPlayback() {
        Task {
            try? await client.reportPlaybackStopped(
                info: .init(
                    itemId: item.id,
                    mediaSourceId: mediaSourceId,
                    positionTicks: Int64(position * 10_000_000),
                    playSessionId: playSessionId
                )
            )
        }
    }
}