#include "boss/ui.hpp"
#include "constants.hpp"
#include "components.hpp"
#include "animation.hpp"
#include <chrono>
#include <thread>
#include "sound.hpp"

const bool DEBUG=false;

namespace boss {
  using namespace guecs;

  UI::UI(shared_ptr<World> world, Entity boss_id) :
    $world(world),
    $boss_id(boss_id),
    $scene(world->get<components::AnimatedScene>($boss_id)),
    $combat_ui(true)
  {
    std::string sprite_name = $scene.actors["boss"]["sprite"];
    $boss_sprite = textures::get_sprite(sprite_name);

    // floor is std::optional
    if($scene.floor) {
      $floor_sprite = textures::get_sprite(*$scene.floor);
    }

    $player_sprite = textures::get_sprite($scene.actors["player"]["sprite"]);

    dbc::check(animation::has(sprite_name), "add boss animation to animations.json");
    $boss_anim = animation::load(sprite_name);

    for(auto& fixture : $scene.fixtures) {
      std::string name = fixture["name"];
      auto st = textures::get_sprite(name);
      // clone the sprite so it can be positioned
      st.sprite = std::make_shared<sf::Sprite>(*st.texture);
      float scale_x = fixture["scale_x"];
      float scale_y = fixture["scale_y"];

      auto anim = animation::load(name);
      anim.scale_x = scale_x;
      anim.scale_y = scale_y;
      anim.play();

      std::string cell = fixture["cell"];
      float x = fixture["x"];
      float y = fixture["y"];

      $fixtures.emplace_back(st, anim, cell, scale_x, scale_y, x, y);
    }
  }

  void UI::init() {
    $arena.position(SCREEN_WIDTH-BOSS_VIEW_WIDTH,0, BOSS_VIEW_WIDTH, SCREEN_HEIGHT);
    $arena.set<Background>($arena.MAIN, {$arena.$parser, THEME.TRANSPARENT});
    auto& background = $arena.get<Background>($arena.MAIN);
    background.set_sprite($scene.background, true);

    $arena.layout(
        "[status|boss1 |boss2 |boss3 |boss4 |_]"
        "[torch1|boss5 |boss6 |boss7 |boss8 |torch2]"
        "[floor1|boss9 |boss10|boss11|boss12|_]"
        "[floor2|boss13|boss14|boss15|boss16|_]"
        "[floor3|player1|player2|player3|player4|_]"
        "[floor4|player5|player6|player7|player8|_]"
        );

    $boss_pos = move_actor($boss_sprite, "boss", $scene.actors["boss"]["start_pos"]);
    move_actor($player_sprite, "player", $scene.actors["player"]["start_pos"]);

    if($scene.floor) {
      position_sprite($floor_sprite, $scene.floor_pos, 1.0f, 1.0f, false);
    }

    for(auto& fixture : $fixtures) {
      position_sprite(fixture.st, fixture.cell,
          fixture.scale_x, fixture.scale_y, false, fixture.x, fixture.y);
      fixture.pos = fixture.st.sprite->getPosition();
    }

    $arena.init();

    $actions.position(0,0, SCREEN_WIDTH-BOSS_VIEW_WIDTH, SCREEN_HEIGHT);
    $actions.layout(
        "[*(200,400)combat|_]"
        "[_|_]"
        "[_|_]"
        "[_|_]"
        "[*(200,300)stats]"
        "[_]"
        "[_]");
    auto stats = $actions.entity("stats");
    $actions.set<Rectangle>(stats, {});
    $actions.set<Text>(stats, {L"stats"});

    $actions.init();

    auto& cell = $actions.cell_for("combat");
    $combat_ui.init(cell.x, cell.y, cell.w, cell.h);
  }

  sf::Vector2f UI::position_sprite(textures::SpriteTexture& st, const std::string& cell_name, float scale_x, float scale_y, bool at_mid, float x_diff, float y_diff) {
    auto& cell = $arena.cell_for(cell_name);
    float x = float(at_mid ? cell.mid_x : cell.x);
    float y = float(at_mid ? cell.mid_y : cell.y);

    sf::Vector2f pos{x + x_diff, y + y_diff};
    st.sprite->setPosition(pos);
    st.sprite->setScale({scale_x, scale_y});

    return pos;
  }

  void UI::render(sf::RenderWindow& window) {
    $actions.render(window);
    $combat_ui.render(window);

    if($floor_sprite.sprite) {
      window.draw(*$floor_sprite.sprite);
    }

    $arena.render(window);

    for(auto& fixture : $fixtures) {
      window.draw(*fixture.st.sprite);
    }

    window.draw(*$boss_sprite.sprite);
    window.draw(*$player_sprite.sprite);

    if(DEBUG) $arena.debug_layout(window);
  }

  bool UI::mouse(float x, float y, Modifiers mods) {
    return $arena.mouse(x, y, mods)
      || $combat_ui.mouse(x, y, mods)
      || $actions.mouse(x, y, mods);
  }

  void UI::status(const std::wstring& msg) {
    $arena.show_text("status", msg);
  }

  sf::Vector2f UI::move_actor(textures::SpriteTexture& st, const std::string& actor, const std::string& cell_name) {
    float scale = $scene.actors[actor]["scale"];
    return position_sprite(st, cell_name, scale, scale, $scene.actors[actor]["mid_cell"]);
  }

  void UI::play_animations() {
    for(auto& fixture : $fixtures) {
      if(fixture.anim.playing) {
        animation::apply(fixture.anim, *fixture.st.sprite, fixture.pos);
      }
    }

    if($boss_anim.playing) {
      if($boss_anim.current == 0) {
        auto scream = $world->get<components::Sound>($boss_id);
        sound::play(scream.attack);
      }

      animation::apply($boss_anim, *$boss_sprite.sprite, $boss_pos);
    }
  }
}