Delia

/** * Copyright (C) 2023 the project owner * * 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 <http://www.gnu.org/licenses/>. */ import { NextResponse } from "next/server" import { readFile } from "fs/promises" import { join } from "path" // Paths derived from DELIA_DATA_DIR env var (default: ../data/) const DATA_DIR = process.env.DELIA_DATA_DIR || join(process.cwd(), "..", "data") const CACHE_DIR = join(DATA_DIR, "cache") const STATS_FILE = join(CACHE_DIR, "usage_stats.json") const ENHANCED_STATS_FILE = join(CACHE_DIR, "enhanced_stats.json") interface ModelStats { calls: number tokens: number } interface UsageStats { quick: ModelStats coder: ModelStats moe: ModelStats } interface RecentCall { timestamp: string model: string task_type: string language: string tokens: number elapsed_ms: number preview: string thinking: boolean } interface ResponseTime { ts: string ms: number } interface EnhancedStats { task_stats: Record<string, number> recent_calls: RecentCall[] response_times: { quick: ResponseTime[] coder: ResponseTime[] moe: ResponseTime[] } } export async function GET() { try { // Read basic stats const data = await readFile(STATS_FILE, "utf-8") const stats: UsageStats = JSON.parse(data) // Ensure all tiers exist with defaults (backward compatibility) if (!stats.quick) stats.quick = { calls: 0, tokens: 0 } if (!stats.coder) stats.coder = { calls: 0, tokens: 0 } if (!stats.moe) stats.moe = { calls: 0, tokens: 0 } // Try to read enhanced stats let enhanced: EnhancedStats | null = null try { const enhancedData = await readFile(ENHANCED_STATS_FILE, "utf-8") enhanced = JSON.parse(enhancedData) } catch { // Enhanced stats file may not exist yet } return NextResponse.json({ stats, enhanced, timestamp: new Date().toISOString(), }) } catch (error) { // Return empty stats if file doesn't exist if ((error as NodeJS.ErrnoException).code === "ENOENT") { return NextResponse.json({ stats: { quick: { calls: 0, tokens: 0 }, coder: { calls: 0, tokens: 0 }, moe: { calls: 0, tokens: 0 }, }, enhanced: null, timestamp: new Date().toISOString(), }) } return NextResponse.json( { error: "Failed to read stats file" }, { status: 500 } ) } }