#include "combat_ui.hpp"
#include "constants.hpp"
#include "color.hpp"

namespace gui {
  CombatUI::CombatUI(GameLevel level) :
      $layout(RAY_VIEW_X, RAY_VIEW_HEIGHT,
          RAY_VIEW_WIDTH, SCREEN_HEIGHT - RAY_VIEW_HEIGHT),
      $level(level),
      $font{FONT_FILE_NAME}
  {
    bool good = $layout.parse($grid);
    dbc::check(good, "failed to parse combat layout");
    render();
  }

  void CombatUI::render() {
    $background.setPosition({float($layout.grid_x), float($layout.grid_y)});
    $background.setSize({float($layout.grid_w), float($layout.grid_h)});
    $background.setFillColor({0, 0, 0});

    for(auto& [name, cell] : $layout.cells) {
      if(name == "bar_hp") {
        $meters.try_emplace(name, cell);
      } else if(name == "label_hp") {
        gui::Label label(cell, "hp:", $font);
        $labels.emplace_back(cell, "hp:", $font);
      } else if(name.starts_with("button_")) {
        $buttons.try_emplace(name, cell, name, $font);
      }
    }
  }

  void CombatUI::draw(sf::RenderWindow& window) {
    window.draw($background);
    auto &player = $level.world->get_the<components::Player>();
    auto &combat = $level.world->get<components::Combat>(player.entity);

    float hp_now = float(combat.hp) / float(combat.max_hp);
    auto& bar_hp = $meters.at("bar_hp");
    bar_hp.set_percent(hp_now);

    for(auto& [name, button] : $buttons) {
      button.draw(window);
    }

    for(auto& [name, meter] : $meters) {
      meter.draw(window);
    }

    for(auto& label : $labels) {
      label.draw(window);
    }

  }

  void CombatUI::click(int x, int y) {
    if(auto name = $layout.hit(x, y)) {
      if((*name).starts_with("button_")) {
        auto& button = $buttons.at(*name);
        button.shape.setFillColor({100, 0, 0});
      }
    }
  }
}