package main

import (
	"encoding/json"
	"flag"
	"fmt"
	"os"
	"strings"

	"git.kotmisia.pl/Mm2PL/examples"
)

func main() {
	files := flag.String("files", "", "Comma separated list of files to convert to JSON.")
	flag.Parse()
	if *files == "" {
		fmt.Fprintf(os.Stderr, "The -files flag is required.")
		return
	}
	var allExamples []examples.Example
	for _, file := range strings.Split(*files, ",") {
		file = strings.Trim(file, " ")
		f, err := os.Open(file)
		if err != nil {
			fmt.Fprintf(os.Stderr, "Failed to open %s for reading: %s\n", file, err)
			continue
		}
		exs, err := examples.ReadFile(f)
		if err != nil {
			fmt.Fprintf(os.Stderr, "Failed to parse %s: %s\n", file, err)
			continue
		}
		allExamples = append(allExamples, exs...)
	}
	err := json.NewEncoder(os.Stdout).Encode(&allExamples)
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to encode JSON: %s\n", err)
		return
	}
}