/*
Slangin'
Menu Helpers
Author: Rudis Muiznieks
License: WTFPL
*/

const uint8_t PROGMEM spriteMenuCursor[] = {
  3, 5,
  0x1f, 0x0e, 0x04,
};

String lookupLocation(GameLocation loc) {
  switch (loc) {
    case LOC_BRONX:
      return F("Bronx");
    case LOC_GHETTO:
      return F("Ghetto");
    case LOC_CENTRAL_PARK:
      return F("Central Park");
    case LOC_MANHATTEN:
      return F("Manhatten");
    case LOC_CONEY_ISLAND:
      return F("Coney Island");
    case LOC_BROOKLYN:
      return F("Brooklyn");
    default:
      return F("");
  }
}

String lookupDrug(Drug drug) {
  switch (drug) {
    case DRUG_COCAINE:
      return F("Cocaine");
    case DRUG_HEROINE:
      return F("Heroine");
    case DRUG_ACID:
      return F("Acid");
    case DRUG_WEED:
      return F("Weed");
    case DRUG_SPEED:
      return F("Speed");
    case DRUG_LUDES:
      return F("Ludes");
    default:
      return F("");
  }
}

void computeMenuSizes(const bool small, const bool cols,
    const int itemCount, const String items[],
    int& x1, int& x2, int& y) {
  const int charWidth = small ? 4 : 5;
  const int charHeight = small ? 8 : 9;

  if (cols) { // two colums
    int col1Count = round(itemCount / 2.0);
    int col2Count = itemCount - col1Count;
    int col1Width = 0;
    int col2Width = 0;
    for (int i = 0; i < col1Count; i++) {
      const int newLen = items[i].length();
      if (newLen > col1Width) col1Width = newLen;
    }
    for (int i = 0; i < col2Count; i++) {
      const int newLen = items[i + col1Count].length();
      if (newLen > col2Width) col2Width = newLen;
    }
    x1 = 66 - round((col1Width + col2Width + 1.75) * (charWidth / 2.0));
    x2 = x1 + round((col1Width + 1.75) * charWidth);
    y = 42 - round(col1Count * (charHeight / 2.0));
  } else { // one column
    int colWidth = 0;
    for (int i = 0; i < itemCount; i++) {
      const int newLen = items[i].length();
      if (newLen > colWidth) colWidth = newLen;
    }
    x1 = 66 - round(colWidth * (charWidth / 2.0));
    x2 = -1;
    y = 42 - round(itemCount * (charHeight / 2.0));
  }
}

void drawMenu(const bool small, const bool cols,
    const int itemCount, const String items[]) {
  const int charWidth = small ? 4 : 5;
  const int charHeight = small ? 8 : 9;
  int x1, x2, y;
  computeMenuSizes(small, cols, itemCount, items, x1, x2, y);
  const int col1Count = round(itemCount / 2.0);
  for (int i = 0; i < itemCount; i++) {
    int cx, cy;
    if (cols) { // two columns
      const bool col1 = i < col1Count;
      cx = col1 ? x1 : x2;
      cy = col1
        ? i * charHeight + y
        : (i - col1Count) * charHeight + y;
    } else { // one column
      cx = x1;
      cy = i * charHeight + y;
    }
    if (small) {
      font3x5.setCursor(cx, cy);
      font3x5.print(items[i]);
    } else {
      font4x6.setCursor(cx, cy);
      font4x6.print(items[i]);
    }
  }
}

void drawMenuIndicator(const int menuSelected, const bool small,
    const bool cols, const int itemCount, const String items[],
    const bool clear) {
  const int charWidth = small ? 4 : 5;
  const int charHeight = small ? 8 : 9;
  int x1, x2, y;
  computeMenuSizes(small, cols, itemCount, items, x1, x2, y);
  int cx, cy;
  if (cols) { // two columns
    const int col1Count = round(itemCount / 2.0);
    const bool col1 = menuSelected < col1Count;
    cx = col1 ? x1 : x2;
    cy = col1
      ? menuSelected * charHeight + y
      : (menuSelected - col1Count) * charHeight + y;
  } else { // one column
    cx = x1;
    cy = menuSelected * charHeight + y;
  }
  if (clear) {
    arduboy.fillRect(cx - 4, cy + (small ? 1 : 2), 3, 5, BLACK);
  } else {
    Sprites::drawOverwrite(cx - 4, cy + (small ? 1 : 2), spriteMenuCursor, 0);
  }
}

void buildDrugMenu(const long extra[6]) {
  int lengths[6];
  int col1Max = 0;
  int col2Max = 0;
  for (int i = 0; i < 6; i++) {
    int extraLen = String(extra[i]).length();
    lengths[i] = lookupDrug(i).length() + 1 + extraLen;
    if (i < 3 && lengths[i] > col1Max) col1Max = lengths[i];
    if (i >= 3 && lengths[i] > col2Max) col2Max = lengths[i];
  }
  for (int i = 0; i < 6; i++) {
    const int colMax = i < 3 ? col1Max : col2Max;
    menu[i] = lookupDrug(i);
    menu[i] += F(" ");
    for (int s = 0; s < colMax - lengths[i]; s++) {
      menu[i] += F(" ");
    }
    menu[i] += String(extra[i]);
  }
  menuLength = 6;
  menuCols = true;
  menuSmall = col1Max + col2Max > 22;
}

int getMenuBackOut() {
  // this whole thing could have been done so much better :(
  // i suck at C++
  switch (sGameState) {
    case STATE_SELL_MENU:
    case STATE_BORROW_INPUT:
    case STATE_WITHDRAW_INPUT:
      return 1;
    case STATE_INVENTORY:
    case STATE_HIGH_SCORES:
      return 2;
    case STATE_JET_MENU:
      return 3;
    case STATE_SHARK_MENU:
      return 4;
    case STATE_BANK_MENU:
      return 5;
    case STATE_BUY_QTY_INPUT:
    case STATE_SELL_QTY_INPUT:
      return sCurrentDrug;
    case STATE_INFO_DIALOG:
      switch (sPreviousGameState) {
        case STATE_BUY_MENU:
        case STATE_SELL_MENU:
          return sCurrentDrug;
        default:
          return 0;
      }
    default:
      return 0;
  }
}