package main

import (
	"flag"
	"fmt"
	"os"

	"opencode-proxy/internal/proxy"
	"opencode-proxy/internal/server"
)

const appVersion = "1.0.0"

func main() {
	port := flag.String("port", "", "Server port (default: 6446)")
	host := flag.String("host", "", "Server host (default: 127.0.0.1)")
	apiKey := flag.String("api-key", "", "API key to protect the proxy (optional, can also be set via OPENCODE_PROXY_KEY env var)")
	showVersion := flag.Bool("version", false, "Show version and exit")
	flag.Parse()

	if *showVersion {
		fmt.Printf("opencode-proxy v%s\n", appVersion)
		return
	}

	// Resolve API key: flag takes precedence, then env var
	key := *apiKey
	if key == "" {
		key = os.Getenv("OPENCODE_PROXY_KEY")
	}

	p := proxy.NewProxy(key)
	srv := server.NewServer(p)

	if *port != "" {
		srv.SetPort(*port)
	}
	if *host != "" {
		srv.SetHost(*host)
	}

	fmt.Printf("OpenCode Zen Proxy v%s\n", appVersion)
	fmt.Printf("Starting on %s:%s\n", srv.Host(), srv.Port())
	if key != "" {
		fmt.Println("API key protection: ENABLED")
	} else {
		fmt.Println("API key protection: DISABLED (no key set)")
	}
	fmt.Printf("Free models available: %d\n", len(p.Models()))

	if err := srv.Start(); err != nil {
		fmt.Fprintf(os.Stderr, "Server error: %v\n", err)
		os.Exit(1)
	}
}