/**
 * Copyright (c) 2021 Dominic Masters
 * 
 * This software is released under the MIT License.
 * https://opensource.org/licenses/MIT
 */
#include "holdemgame.h"

holdemgame_t HOLDEM_GAME_STATE;

void holdemGameInit() {
  int32_t lWidth, rWidth, height;
  card_t card;
  tilesetdiv_t *cardBack;

  // Create the initial frame buffers
  lWidth = HOLDEM_GAME_FRAME_LEFT_WIDTH, rWidth = HOLDEM_GAME_FRAME_RIGHT_WIDTH;
  height = HOLDEM_GAME_FRAME_HEIGHT;
  HOLDEM_GAME_STATE.frameLeft = frameBufferCreate(lWidth, height);
  HOLDEM_GAME_STATE.frameRight = frameBufferCreate(rWidth, height);
  HOLDEM_GAME_STATE.quadLeft = quadCreate(0, 0, 0, 0, 0, lWidth, height, 1, 1);
  HOLDEM_GAME_STATE.quadRight = quadCreate(0, 0, 0, 0, 0, rWidth, height, 1, 1);

  // Font
  HOLDEM_GAME_STATE.fontTexture = assetTextureLoad("font.png");
  HOLDEM_GAME_STATE.fontTileset = tilesetCreate(20, 20,
    HOLDEM_GAME_STATE.fontTexture->width,
    HOLDEM_GAME_STATE.fontTexture->height,
    1, 1, 1, 1
  );
  HOLDEM_GAME_STATE.fontBatch = spriteBatchCreate(1024);

  // Poker Table
  HOLDEM_GAME_STATE.tablePrimitive = pokerTableCreate();
  HOLDEM_GAME_STATE.tableTexture = assetTextureLoad("pokertable.png");

  // Kagami
  HOLDEM_GAME_STATE.kagamiTexture = assetTextureLoad("kagami.png");
  HOLDEM_GAME_STATE.kagamiTileset = tilesetCreate(3, 2,
    HOLDEM_GAME_STATE.kagamiTexture->width,
    HOLDEM_GAME_STATE.kagamiTexture->height,
    0, 0, 0, 0
  );
  HOLDEM_GAME_STATE.kagamiQuad = quadCreate(0, 0, 0, 0, 0, 1, 1, 1, 1);

  // Load Cards Texture
  HOLDEM_GAME_STATE.cardTexture = assetTextureLoad("cards_normal.png");
  HOLDEM_GAME_STATE.cardTileset = tilesetCreate(CARD_COUNT_PER_SUIT, 6,
    HOLDEM_GAME_STATE.cardTexture->width, HOLDEM_GAME_STATE.cardTexture->height,
    0, 0, 0, 0
  );

  // Cards Primitive
  cardBack = HOLDEM_GAME_STATE.cardTileset->divisions+(
    HOLDEM_GAME_STATE.cardTileset->columns * 4
  );
  HOLDEM_GAME_STATE.cardPrimitive = primitiveCreate(
    QUAD_VERTICE_COUNT * 2, QUAD_INDICE_COUNT * 2
  );
  quadBuffer(HOLDEM_GAME_STATE.cardPrimitive, -HOLDEM_GAME_CARD_DEPTH,
    -HOLDEM_GAME_CARD_WIDTH, -HOLDEM_GAME_CARD_HEIGHT,
    cardBack->x0, cardBack->y1,
    HOLDEM_GAME_CARD_WIDTH, HOLDEM_GAME_CARD_HEIGHT,
    cardBack->x1, cardBack->y0,
    QUAD_VERTICE_COUNT, QUAD_INDICE_COUNT
  );

  // Prepare match
  holdemMatchInit(&HOLDEM_GAME_STATE.match);
  holdemRoundInit(&HOLDEM_GAME_STATE.match);
  cardShuffle(HOLDEM_GAME_STATE.match.deck, HOLDEM_GAME_STATE.match.deckSize);
  holdemFlop(&HOLDEM_GAME_STATE.match);
}

void holdemGameUpdate() {
  int32_t lWidth, rWidth, height;

  if(true) {
    cameraPerspective(&HOLDEM_GAME_STATE.cameraLeft, 45, 
      ((float)RENDER_STATE.width/(float)RENDER_STATE.height), 1.0f, 1000.0f
    );
    cameraLookAt(&HOLDEM_GAME_STATE.cameraLeft, 2, 2, 2, 0, 0, 0);
    shaderUseCamera(GAME_STATE.shaderWorld, &HOLDEM_GAME_STATE.cameraLeft);
    holdemRenderWorld();
    return;
  }

  // Resize Frame buffers.
  lWidth = HOLDEM_GAME_FRAME_LEFT_WIDTH, rWidth = HOLDEM_GAME_FRAME_RIGHT_WIDTH;
  height = HOLDEM_GAME_FRAME_HEIGHT;
  if(
    HOLDEM_GAME_STATE.frameLeft->texture->width != lWidth ||
    HOLDEM_GAME_STATE.frameLeft->texture->height != height
  ) {
    frameBufferDispose(HOLDEM_GAME_STATE.frameLeft);
    frameBufferDispose(HOLDEM_GAME_STATE.frameRight);
    HOLDEM_GAME_STATE.frameLeft = frameBufferCreate(lWidth, height);
    HOLDEM_GAME_STATE.frameRight = frameBufferCreate(rWidth, height);
    quadBuffer(HOLDEM_GAME_STATE.quadLeft, 0,
      0, 0, 0, 1,
      lWidth, height, 1, 0,
      0, 0
    );
    quadBuffer(HOLDEM_GAME_STATE.quadRight, 0,
      0, 0, 0, 1,
      rWidth, height, 1, 0,
      0, 0
    );
  }

  // Render things on the left frame buffer
  glClearColor(0.3, 0, 0, 1);
  frameBufferUse(HOLDEM_GAME_STATE.frameLeft, true);
  cameraPerspective(&HOLDEM_GAME_STATE.cameraLeft, 45, 
    ((float)lWidth/height), 1.0f, 1000.0f
  );
  cameraLookAt(&HOLDEM_GAME_STATE.cameraLeft, 2, 2, 2, 0, 0, 0);
  shaderUseCamera(GAME_STATE.shaderWorld, &HOLDEM_GAME_STATE.cameraLeft);
  holdemRenderWorld();


  // Render things on the right frame buffer
  glClearColor(0.3, 0.3, 0, 1);
  frameBufferUse(HOLDEM_GAME_STATE.frameRight, true);
  cameraPerspective(&HOLDEM_GAME_STATE.cameraRight, 45, 
    ((float)rWidth/height), 0.25f, 100.0f
  );
  cameraLookAt(&HOLDEM_GAME_STATE.cameraRight, 0, 3, 3, 0, 0, 0);
  shaderUseCamera(GAME_STATE.shaderWorld, &HOLDEM_GAME_STATE.cameraRight);
  holdemRenderWorld();


  // Finally, render the frame buffers to the back buffer.
  glClearColor(0, 0, 0, 1);
  frameBufferUse(NULL, true);
  cameraOrtho(&GAME_STATE.cameraWorld, 0,
    RENDER_STATE.width, RENDER_STATE.height, 1, 0, 1
  );
  cameraLookAt(&GAME_STATE.cameraWorld, 0, 0, 0.5f, 0, 0, 0);
  shaderUseCamera(GAME_STATE.shaderWorld, &GAME_STATE.cameraWorld);

  // L
  shaderUsePosition(GAME_STATE.shaderWorld, 0, 0, 0, 0, 0, 0);
  shaderUseTexture(GAME_STATE.shaderWorld, HOLDEM_GAME_STATE.frameLeft->texture);
  primitiveDraw(HOLDEM_GAME_STATE.quadLeft, 0, -1);
  // R
  shaderUsePosition(GAME_STATE.shaderWorld,
    RENDER_STATE.width-rWidth, 0, 0, 0, 0, 0
  );
  shaderUseTexture(GAME_STATE.shaderWorld, HOLDEM_GAME_STATE.frameRight->texture);
  primitiveDraw(HOLDEM_GAME_STATE.quadRight, 0, -1);
}