import { db } from './index';
import type { GameState, ActivityEntry } from './schema';

// Initialize or get game state
export async function getOrCreateGameState(): Promise<GameState> {
  const states = await db.gameState.toArray();

  if (states.length > 0) {
    // Update last played
    await db.gameState.update(states[0].id!, { lastPlayed: new Date() });
    return states[0];
  }

  // Create initial game state
  const newState: Omit<GameState, 'id'> = {
    lastActivityRefresh: new Date(),
    lastPlayed: new Date(),
    totalDiscoveries: 0,
    uniqueDiscoveries: 0,
    variationsFound: 0,
    rarityScore: 0,
    currentStreak: 0
  };

  const id = await db.gameState.add(newState);
  return { ...newState, id };
}

// Update progress
export async function updateProgress(updates: Partial<GameState>): Promise<void> {
  const state = await getOrCreateGameState();
  await db.gameState.update(state.id!, updates);
}

// Increment discovery counters
export async function incrementDiscoveryCounter(counter: 'totalDiscoveries' | 'uniqueDiscoveries' | 'variationsFound'): Promise<void> {
  const state = await getOrCreateGameState();
  await db.gameState.update(state.id!, {
    [counter]: (state[counter] || 0) + 1
  });
}

// Add rarity score points
export async function addRarityScore(points: number): Promise<void> {
  const state = await getOrCreateGameState();
  await db.gameState.update(state.id!, {
    rarityScore: (state.rarityScore || 0) + points
  });
}

// Create a new activity entry
export async function createActivityEntry(entry: Omit<ActivityEntry, 'id' | 'createdAt'>): Promise<number> {
  return await db.activityEntries.add({
    ...entry,
    createdAt: new Date()
  });
}

// Get recent activity
export async function getRecentActivity(limit: number = 10): Promise<ActivityEntry[]> {
  return await db.activityEntries
    .orderBy('createdAt')
    .reverse()
    .limit(limit)
    .toArray();
}

// Check if should refresh activity (e.g., every 30 minutes)
export async function shouldRefreshActivity(): Promise<boolean> {
  const state = await getOrCreateGameState();
  const minutesSinceRefresh = (Date.now() - state.lastActivityRefresh.getTime()) / (1000 * 60);
  return minutesSinceRefresh >= 30;
}

// Mark activity as refreshed
export async function markActivityRefreshed(): Promise<void> {
  const state = await getOrCreateGameState();
  await db.gameState.update(state.id!, {
    lastActivityRefresh: new Date()
  });
}

// Update current streak
export async function updateStreak(daysActive: number): Promise<void> {
  const state = await getOrCreateGameState();
  await db.gameState.update(state.id!, {
    currentStreak: daysActive
  });
}

// Calculate rarity points for a discovery
export function calculateRarityPoints(scanCount: number): number {
  if (scanCount <= 5) return 100;  // Legendary
  if (scanCount <= 20) return 50;  // Epic
  if (scanCount <= 50) return 20;  // Rare
  if (scanCount <= 100) return 10; // Uncommon
  return 5; // Common
}