package fileutil

import (
	"encoding/json"
	"fmt"
	"os"
)

// LoadJSON loads and unmarshals JSON from a file into the target struct.
// It automatically searches for the file using FindDataFile and handles
// all error wrapping with context.
//
// Example:
//
//	var cv CV
//	if err := fileutil.LoadJSON("data/cv-en.json", &cv); err != nil {
//	    log.Fatal(err)
//	}
func LoadJSON(filename string, target interface{}) error {
	filepath, err := FindDataFile(filename)
	if err != nil {
		return err
	}

	data, err := os.ReadFile(filepath)
	if err != nil {
		return fmt.Errorf("error reading file %s: %w", filename, err)
	}

	if err := json.Unmarshal(data, target); err != nil {
		return fmt.Errorf("error parsing JSON from %s: %w", filename, err)
	}

	return nil
}