// Playback reporting service
//
// Simplified service that delegates all logic to the Rust backend.
// The backend handles:
// - Local DB updates
// - Jellyfin server reporting
// - Offline queueing (via sync queue)
// - Connectivity checks
//
// TRACES: UR-005, UR-019, UR-025 | DR-028, DR-047

import { invoke } from "@tauri-apps/api/core";
import { auth } from "$lib/stores/auth";

/**
 * Report playback start to Jellyfin (or queue if offline)
 *
 * The Rust backend handles both local DB updates and server reporting,
 * automatically queueing for sync if the server is unreachable.
 *
 * TRACES: UR-005, UR-025 | DR-028
 */
export async function reportPlaybackStart(
  itemId: string,
  positionSeconds: number,
  contextType: "container" | "single" = "single",
  contextId: string | null = null
): Promise<void> {
  const positionTicks = Math.floor(positionSeconds * 10000000);
  const userId = auth.getUserId();

  console.log(
    "[PlaybackReporting] reportPlaybackStart - itemId:",
    itemId,
    "positionSeconds:",
    positionSeconds,
    "context:",
    contextType,
    contextId
  );

  // Update local DB with context (always works, even offline)
  if (userId) {
    try {
      await invoke("storage_update_playback_context", {
        userId,
        itemId,
        positionTicks,
        contextType,
        contextId,
      });
    } catch (e) {
      console.error("[PlaybackReporting] Failed to update playback context:", e);
    }
  }
}

/**
 * Report playback progress to Jellyfin (or queue if offline)
 *
 * Note: Progress reports are frequent and are not queued for sync.
 * The final position is captured by reportPlaybackStopped.
 *
 * TRACES: UR-005 | DR-028
 */
export async function reportPlaybackProgress(
  itemId: string,
  positionSeconds: number,
  _isPaused = false
): Promise<void> {
  const positionTicks = Math.floor(positionSeconds * 10000000);
  const userId = auth.getUserId();

  // Reduce logging for frequent progress updates
  if (Math.floor(positionSeconds) % 30 === 0) {
    console.log("[PlaybackReporting] reportPlaybackProgress - itemId:", itemId, "position:", positionSeconds);
  }

  // Update local DB only (progress updates are frequent, don't report to server)
  if (userId) {
    try {
      await invoke("storage_update_playback_progress", {
        userId,
        itemId,
        positionTicks,
      });
    } catch (e) {
      console.error("[PlaybackReporting] Failed to update local progress:", e);
    }
  }
}

/**
 * Report playback stopped to Jellyfin (or queue if offline)
 *
 * The Rust backend handles both local DB updates and server reporting,
 * automatically queuing for sync if the server is unreachable.
 *
 * TRACES: UR-005, UR-025 | DR-028
 */
export async function reportPlaybackStopped(itemId: string, positionSeconds: number): Promise<void> {
  const positionTicks = Math.floor(positionSeconds * 10000000);
  const userId = auth.getUserId();

  console.log("[PlaybackReporting] reportPlaybackStopped - itemId:", itemId, "positionSeconds:", positionSeconds);

  // Update local DB first (always works, even offline)
  if (userId) {
    try {
      await invoke("storage_update_playback_progress", {
        userId,
        itemId,
        positionTicks,
      });
    } catch (e) {
      console.error("[PlaybackReporting] Failed to update local progress:", e);
    }
  }

  // Queue for sync to server (the sync service will handle retry logic)
  if (userId && positionSeconds > 0) {
    try {
      // Get the repository to check if we should queue
      const repo = auth.getRepository();
      await repo.reportPlaybackStopped(itemId, positionTicks);
    } catch (e) {
      console.error("[PlaybackReporting] Failed to report to server:", e);
      // Server error - could queue, but for now just log
    }
  }
}

/**
 * Mark an item as played (100% progress)
 *
 * TRACES: UR-025 | DR-028
 */
export async function markAsPlayed(itemId: string): Promise<void> {
  const userId = auth.getUserId();

  console.log("[PlaybackReporting] markAsPlayed - itemId:", itemId);

  // Update local DB first
  if (userId) {
    try {
      await invoke("storage_mark_played", { userId, itemId });
    } catch (e) {
      console.error("[PlaybackReporting] Failed to mark as played in local DB:", e);
    }
  }

  // Try to report to server via repository (handles queuing internally)
  try {
    const repo = auth.getRepository();
    const item = await repo.getItem(itemId);

    if (item.runTimeTicks) {
      await repo.reportPlaybackStopped(itemId, item.runTimeTicks);
    }
  } catch (e) {
    console.error("[PlaybackReporting] Failed to report as played:", e);
  }
}