#include "autowalker.hpp"


void Autowalker::autowalk() {
  fmt::println("I'M WALKIN' HEAR!");

  fsm.$window.handleEvents(
      [&](const sf::Event::KeyPressed &) {
        fsm.autowalking = false;
        fmt::println("ABORT AUTOWALK");
      },
      [&](const sf::Event::MouseButtonPressed &) {
        fsm.autowalking = false;
        fmt::println("ABORT AUTOWALK");
      }
  );

  if(!fsm.autowalking) return;

  while(fsm.in_state(gui::State::IN_COMBAT) || fsm.in_state(gui::State::ATTACKING)) {
    if(fsm.in_state(gui::State::ATTACKING)) {
      fsm.event(gui::Event::TICK);
    } else {
      fsm.event(gui::Event::ATTACK);
    }

    fsm.handle_world_events();
  }

  auto& player_position = fsm.$level.world->get<components::Position>(fsm.$level.player);
  auto current = player_position.location;
  Point target = current;
  bool found = fsm.$level.map->neighbors(target, false, -1);
  if(!found) {
    dbc::log("no neighbor found, aborting autowalk");
    fsm.autowalking = false;
    return;
  }

  if(!fsm.$level.map->can_move(target)) {
    dbc::log("neighbors is telling me to go to a bad spot.");
    fsm.autowalking = false;
    return;
  }

  int delta_x = int(target.x) - int(current.x);
  int delta_y = int(target.y) - int(current.y);

  int facing = fsm.$main_ui.$compass_dir;
  int target_facing = 0;

  if(delta_x == -1 && delta_y == 0) {
    // west
    fmt::println("WEST: {}, {}", target.x, target.y);
    target_facing = 4;
  } else if(delta_x == 1 && delta_y == 0) {
    // east
    fmt::println("EAST: {}, {}", target.x, target.y);
    target_facing = 0;
  } else if(delta_x == 0 && delta_y == 1) {
    fmt::println("SOUTH: {}, {}", target.x, target.y);
    // south
    target_facing = 2;
  } else if(delta_x == 0 && delta_y == -1) {
    fmt::println("NORTH: {}, {}", target.x, target.y);
    // north
    target_facing = 6;
  } else {
    dbc::sentinel(
        fmt::format("got more than 4 direction result: "
          "current={},{} "
          "target={},{} "
          "delta={},{} ",
          current.x, current.y,
          target.x, target.y,
          delta_x, delta_y));
  }

  auto dir = facing < target_facing ? gui::Event::ROTATE_LEFT : gui::Event::ROTATE_RIGHT;

  while(facing != target_facing) {
    fsm.event(dir);
    fsm.render();
    fsm.handle_world_events();
    facing = fsm.$main_ui.$compass_dir;
  }

  dbc::check(fsm.$main_ui.$compass_dir == target_facing,
      "player isn't facing the correct direction");

  if(!fsm.in_state(gui::State::IN_COMBAT)) {
    if(fsm.in_state(gui::State::ATTACKING)) {
      fsm.event(gui::Event::TICK);
    } else {
      fsm.event(gui::Event::MOVE_FORWARD);
    }

    fsm.handle_world_events();

    do {
        fmt::println("IN WHILE MOVING");
        fsm.event(gui::Event::TICK);
        fsm.event(gui::Event::ATTACK);
        fsm.render();
        fsm.handle_world_events();
    } while(fsm.in_state(gui::State::MOVING));
  }
}

void Autowalker::start_autowalk() {
  fsm.autowalking = true;
}