package params

import (
	"os"
	"strings"
)

// LoadFromFile loads parameters from a JSON or YAML file.
// File format is determined by extension (.json or .yaml/.yml).
func LoadFromFile(filepath string) (*Params, error) {
	data, err := os.ReadFile(filepath)
	if err != nil {
		return nil, err
	}

	// Determine format by extension
	ext := strings.ToLower(filepath[strings.LastIndex(filepath, "."):])
	switch ext {
	case ".yaml", ".yml":
		return LoadFromYAML(data)
	case ".json":
		return LoadFromJSON(data)
	default:
		// Default to JSON if unknown extension
		return LoadFromJSON(data)
	}
}