package bundle

import (
	"fmt"
	"os"
	"strings"

	"cliprepo/internal/config"
	"github.com/atotto/clipboard"
)

const maxFileSize = 1 * 1024 * 1024 // 1MB

func Build(key string) (string, error) {
	cfg, err := config.Load()
	if err != nil {
		return "", err
	}

	files, ok := cfg.Bundles[key]
	if !ok {
		return "", fmt.Errorf("bundle not found: %s", key)
	}

	var builder strings.Builder

	for _, file := range files {
		info, err := os.Stat(file)
		if err != nil {
			continue
		}

		if info.Size() > maxFileSize {
			continue
		}

		data, err := os.ReadFile(file)
		if err != nil {
			continue
		}

		builder.WriteString(fmt.Sprintf("===== %s =====\n", file))
		builder.Write(data)
		builder.WriteString("\n\n")
	}

	return builder.String(), nil
}

func Copy(content string) error {
	return clipboard.WriteAll(content)
}