reader.jakt

/// Expect: Skip

import utility

function lines_int(day: i64, examples: bool = false, separator: c_char = '\n') throws -> [i32] {
    mut lines_int: [i32] = []
    let lines_string = read_input(day, examples).split(separator)
    
    for line in lines_string.iterator() {
        let number = line.to_int()

        if number.has_value() {
            lines_int.push(number!)
        }
    }

    return lines_int;
}

function lines_string(day: i64, examples: bool = false) throws -> [String] {
    return read_input(day, examples).split('\n')
}

function chars(day: i64, examples: bool = false) throws -> [u8] {
    return utility::string_to_char_array(read_input(day, examples))
}

function read_input(day: i64, examples: bool) throws -> String {
    let folder = match examples {
        true => "examples"
        else => "input"
    }

    let path = format("{}/{}", folder, day)
    mut file = File::open_for_reading(path)
    
    return bytes_to_string(file.read_all())
}

function bytes_to_string(anon bytes: [u8]) throws -> String {
    mut builder = StringBuilder::create()

    for byte in bytes.iterator() {
        builder.append(byte)
    }

    return builder.to_string()
}