use chumsky::{input::Stream, prelude::*};

mod memory_sandbox;

mod spans;

mod lexer;
use crate::lexer::lexer;

mod parser;
use crate::parser::parser;

mod validator;

mod compiler;
use crate::compiler::Chunk;

mod value;

mod vm;
use vm::Vm;

pub fn run(src: &'static str) {
    let (tokens, lex_errs) = lexer().parse(src).into_output_errors();
    if !lex_errs.is_empty() {
        println!("{:?}", lex_errs);
        return;
    }

    let tokens = tokens.unwrap();

    let (parse_result, parse_errors) = parser()
        .parse(Stream::from_iter(tokens).map((0..src.len()).into(), |(t, s)| (t, s)))
        .into_output_errors();
    if !parse_errors.is_empty() {
        println!("{:?}", parse_errors);
        return;
    }

    let parsed = parse_result.unwrap();

    let mut chunk = Chunk::new(&parsed, "test", src);
    chunk.compile();
    chunk.disassemble();

    let mut vm = Vm::new(&chunk);
    let result = vm.interpret();
    let output = match result {
        Ok(val) => val.show(&chunk),
        Err(panic) => format!("{:?}", panic),
    };
    println!("{output}");
}

pub fn main() {
    let src = "
let foo = :let_foo

let bar = if true
    then {
        :foo
        :bar
        :baz
    }
    else {
        1
        2
        3
    }

foo

bar
    ";
    run(src);
}