package main

import (
	"fmt"
	"os"

	"git.thomasvoss.com/gsp/formatter"
	"git.thomasvoss.com/gsp/parser"
)

func main() {
	if len(os.Args) != 2 {
		fmt.Fprintf(os.Stderr, "Usage: %s file\n", os.Args[0])
		os.Exit(1)
	}
	file, err := os.Open(os.Args[1])
	if err != nil {
		die(err)
	}
	defer file.Close()
	ast, err := parser.ParseFile(file)
	if err != nil {
		die(err)
	}

	formatter.PrintHtml(ast)
	fmt.Print("\n")
}

func die(strings ...any) {
	fmt.Fprint(os.Stderr, os.Args[0])
	for _, s := range strings {
		fmt.Fprintf(os.Stderr, ": %v", s)
	}
	fmt.Fprint(os.Stderr, "\n")
	os.Exit(1)
}