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use crate::frame::FrameRef;
use crate::function::OptionalArg;
use crate::pyobject::PyObjectRef;
use crate::vm::VirtualMachine;

fn dump_frame(frame: &FrameRef) {
    eprintln!(
        "  File \"{}\", line {} in {}",
        frame.code.source_path,
        frame.get_lineno().row(),
        frame.code.obj_name
    )
}

fn dump_traceback(_file: OptionalArg<i64>, _all_threads: OptionalArg<bool>, vm: &VirtualMachine) {
    eprintln!("Stack (most recent call first):");

    for frame in vm.frames.borrow().iter() {
        dump_frame(frame);
    }
}

fn enable(_file: OptionalArg<i64>, _all_threads: OptionalArg<bool>) {
    // TODO
}

fn register(
    _signum: i64,
    _file: OptionalArg<i64>,
    _all_threads: OptionalArg<bool>,
    _chain: OptionalArg<bool>,
) {
    // TODO
}

pub fn make_module(vm: &VirtualMachine) -> PyObjectRef {
    let ctx = &vm.ctx;
    py_module!(vm, "faulthandler", {
        "dump_traceback" => ctx.new_function(dump_traceback),
        "enable" => ctx.new_function(enable),
        "register" => ctx.new_function(register),
    })
}