package main

import (
	"fmt"
	"os"

	"gopkg.in/yaml.v3"
)

type Config struct {
	Camera struct {
		RTSPURL string `yaml:"rtsp_url"`
	} `yaml:"camera"`
	HomeAssistant struct {
		URL   string `yaml:"url"`
		Token string `yaml:"token"`
	} `yaml:"home_assistant"`
	Processing struct {
		SampleInterval         int `yaml:"sample_interval"`
		ChangeThresholdPercent int `yaml:"change_threshold_percent"`
		MaxDriftSeconds        int `yaml:"max_drift_seconds"`
	} `yaml:"processing"`
	Logging struct {
		Level string `yaml:"level"`
		File  string `yaml:"file"`
	} `yaml:"logging"`
}

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

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

	return &config, nil
}