// Package main is the entry point for the RemoteRig central hub.
package main

import (
	"fmt"
	"log"
	"os"
	"time"

	"gopkg.in/yaml.v3"
)

// Config holds the application configuration.
type Config struct {
	DBPath       string        `yaml:"db_path"`
	APIKey       string        `yaml:"api_key"`
	Port         string        `yaml:"port"`
	ReadTimeout  time.Duration `yaml:"read_timeout"`
	WriteTimeout time.Duration `yaml:"write_timeout"`
	IdleTimeout  time.Duration `yaml:"idle_timeout"`
	MQTT         struct {
		Broker   string `yaml:"broker"`
		ClientID string `yaml:"client_id"`
	} `yaml:"mqtt"`
	Platform struct {
		Type       string `yaml:"type"`
		MaxCameras int    `yaml:"max_cameras"`
	} `yaml:"platform"`
}

func main() {
	log.Println("RemoteRig hub starting...")

	// Load config
	cfg, err := loadConfig("config.yaml")
	if err != nil {
		log.Fatalf("Failed to load config: %v", err)
	}

	// Print config values
	log.Printf("Database: %s", cfg.DBPath)
	log.Printf("API key set: %t", cfg.APIKey != "")
	log.Printf("Server port: %s", cfg.Port)
	log.Printf("MQTT broker: %s", cfg.MQTT.Broker)
	log.Printf("Platform: %s (max %d cameras)", cfg.Platform.Type, cfg.Platform.MaxCameras)

	log.Println("RemoteRig hub ready")
}

func loadConfig(path string) (*Config, error) {
	data, err := os.ReadFile(path)
	if err != nil {
		return nil, fmt.Errorf("read config file: %w", err)
	}

	var cfg Config
	if err := yaml.Unmarshal(data, &cfg); err != nil {
		return nil, fmt.Errorf("parse config: %w", err)
	}

	// Defaults
	if cfg.Port == "" {
		cfg.Port = "8080"
	}
	if cfg.DBPath == "" {
		cfg.DBPath = "remoterig.db"
	}
	if cfg.MQTT.Broker == "" {
		cfg.MQTT.Broker = "localhost:1883"
	}
	if cfg.MQTT.ClientID == "" {
		cfg.MQTT.ClientID = "remoterig-hub"
	}

	return &cfg, nil
}