package main

import "core:fmt"
import "core:os"

main :: proc() {
	handle: os.Handle
	if len(os.args) >= 2 {
		errno: os.Errno
		handle, errno = os.open(os.args[1])
		if errno != 0 {
			fmt.printf("Error opening file\n", errno)
				return
		}
	} else {
		handle = os.stdin
	}
	defer os.close(handle)

	data, err := os.read_entire_file_from_handle(handle)
	if !err {
		fmt.printf("Error reading file\n", err)
		return
	}

	u8_arr : [dynamic]u8
	for ch in data {
		append(&u8_arr, u8(ch))
	}

	lexer := lexer_create(&u8_arr)
	parser := parser_create(lexer)

	ast := parser_parse(&parser)
	type_check(ast, nil)
	if len(g_message_list) > 0 {
		for msg in g_message_list {
			fmt.printf("%s\n", msg)
		}
		return
	}

	node_print(ast)
}