package handlers

import (
	"log"
	"net/http"
	"time"
)

// LoggingMiddleware logs HTTP requests
func LoggingMiddleware(next http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		startTime := time.Now()
		log.Printf("[HTTP] %s %s %s", r.Method, r.URL.Path, r.RemoteAddr)
		next.ServeHTTP(w, r)
		log.Printf("[HTTP] %s %s completed in %v", r.Method, r.URL.Path, time.Since(startTime))
	})
}

// CORSMiddleware adds CORS headers to responses
func CORSMiddleware(next http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		// Set CORS headers
		w.Header().Set("Access-Control-Allow-Origin", "*")
		w.Header().Set("Access-Control-Allow-Methods", "GET, POST, OPTIONS")
		w.Header().Set("Access-Control-Allow-Headers", "Content-Type, Authorization")

		// Handle preflight requests
		if r.Method == http.MethodOptions {
			w.WriteHeader(http.StatusOK)
			return
		}

		// Call the next handler
		next.ServeHTTP(w, r)
	})
}

// RecoveryMiddleware recovers from panics
func RecoveryMiddleware(next http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		defer func() {
			if err := recover(); err != nil {
				log.Printf("[PANIC] %v", err)
				http.Error(w, "Internal server error", http.StatusInternalServerError)
			}
		}()
		next.ServeHTTP(w, r)
	})
}