module('spritebatch')
module('camera')
module('color')
module('ui')
module('screen')
module('time')
module('glm')
module('text')
module('tileset')
module('texture')
module('input')

CELL_STATE_DEFAULT = 0
CELL_STATE_HOVER = 1
CELL_STATE_DOWN = 2
CELL_STATE_DISABLED = 3

screenSetBackground(colorBlack())
camera = cameraCreate(CAMERA_PROJECTION_TYPE_ORTHOGRAPHIC)

-- tilesetUi = tilesetGetByName("ui")
-- textureUi = textureLoad(tilesetUi.texture)

-- tilesetBorder = tilesetGetByName("border")
-- textureBorder = textureLoad(tilesetBorder.texture)

-- textureGrid = textureLoad("minesweeper/grid_bg.dpi")

-- tilesetCell = tilesetGetByName("cell")
-- textureCell = textureLoad(tilesetCell.texture)
-- cellSliceDefault = tilesetPositionGetUV(tilesetCell, 3, 5)
-- cellSliceHover = tilesetPositionGetUV(tilesetCell, 3, 4)
-- cellSliceDown = tilesetPositionGetUV(tilesetCell, 3, 6)
-- cellSliceDisabled = tilesetPositionGetUV(tilesetCell, 3, 7)

-- sweepwerCols = 10
-- sweeperRows = 14

-- mouseX = -1
-- mouseY = -1
-- centerX = 0
-- centerY = 0
-- boardWidth = sweepwerCols * tilesetCell.tileWidth
-- boardHeight = sweeperRows * tilesetCell.tileHeight

-- i = 0
-- cells = {}
-- for y = 1, sweeperRows do
--   for x = 1, sweepwerCols do
--     cells[i] = CELL_STATE_DEFAULT
--     i = i + 1
--   end
-- end

function cellDraw(x, y, type)
  local slice = cellSliceDefault
  if type == CELL_STATE_HOVER then
    slice = cellSliceHover
  elseif type == CELL_STATE_DOWN then
    slice = cellSliceDown
  elseif type == CELL_STATE_DISABLED then
    slice = cellSliceDisabled
  end

  spriteBatchPush(textureCell,
    x, y,
    x + tilesetCell.tileWidth, y + tilesetCell.tileHeight,
    colorWhite(),
    slice.u0, slice.v0,
    slice.u1, slice.v1
  )
end

function backgroundDraw()
  local t = (TIME.time / 40) % 1
  local scaleX = screenGetWidth() / textureGrid.width
  local scaleY = screenGetHeight() / textureGrid.height
  local u0 = t * scaleX
  local v0 = t * scaleY
  local u1 = scaleX + u0
  local v1 = scaleY + v0

  spriteBatchPush(textureGrid,
    0, 0,
    screenGetWidth(), screenGetHeight(),
    colorWhite(),
    u0, v0,
    u1, v1
  )
end

function borderDraw(x, y, innerWidth, innerHeight)
  -- Top Left
  local uv = tilesetPositionGetUV(tilesetBorder, 0, 0)
  spriteBatchPush(textureBorder,
    x - tilesetBorder.tileWidth, y  - tilesetBorder.tileWidth,
    x, y,
    colorWhite(),
    uv.u0, uv.v0,
    uv.u1, uv.v1
  )

  -- Top Right
  uv = tilesetPositionGetUV(tilesetBorder, 10, 0)
  spriteBatchPush(textureBorder,
    x + innerWidth, y - tilesetBorder.tileHeight,
    x + innerWidth + tilesetBorder.tileWidth, y,
    colorWhite(),
    uv.u0, uv.v0,
    uv.u1, uv.v1
  )

  -- Bottom Left
  uv = tilesetPositionGetUV(tilesetBorder, 0, 10)
  spriteBatchPush(textureBorder,
    x - tilesetBorder.tileWidth, y + innerHeight,
    x, y + innerHeight + tilesetBorder.tileHeight,
    colorWhite(),
    uv.u0, uv.v0,
    uv.u1, uv.v1
  )

  -- Bottom Right
  uv = tilesetPositionGetUV(tilesetBorder, 10, 10)
  spriteBatchPush(textureBorder,
    x + innerWidth, y + innerHeight,
    x + innerWidth + tilesetBorder.tileWidth, y + innerHeight + tilesetBorder.tileHeight,
    colorWhite(),
    uv.u0, uv.v0,
    uv.u1, uv.v1
  )

  -- Top
  uv = tilesetPositionGetUV(tilesetBorder, 1, 0)
  spriteBatchPush(textureBorder,
    x, y - tilesetBorder.tileHeight,
    x + innerWidth, y,
    colorWhite(),
    uv.u0, uv.v0,
    uv.u1, uv.v1
  )

  -- Bottom
  uv = tilesetPositionGetUV(tilesetBorder, 1, 10)
  spriteBatchPush(textureBorder,
    x, y + innerHeight,
    x + innerWidth, y + innerHeight + tilesetBorder.tileHeight,
    colorWhite(),
    uv.u0, uv.v0,
    uv.u1, uv.v1
  )

  -- Left
  uv = tilesetPositionGetUV(tilesetBorder, 0, 1)
  spriteBatchPush(textureBorder,
    x - tilesetBorder.tileWidth, y,
    x, y + innerHeight,
    colorWhite(),
    uv.u0, uv.v0,
    uv.u1, uv.v1
  )

  -- Right
  uv = tilesetPositionGetUV(tilesetBorder, 10, 1)
  spriteBatchPush(textureBorder,
    x + innerWidth, y,
    x + innerWidth + tilesetBorder.tileWidth, y + innerHeight,
    colorWhite(),
    uv.u0, uv.v0,
    uv.u1, uv.v1
  )
end

function sceneDispose()
end

function sceneUpdate()
end

function sceneRender()
  -- Update camera
  cameraPushMatrix(camera)
  camera.bottom = screenGetHeight()
  camera.right = screenGetWidth()

  -- Update mouse position
  if INPUT_POINTER then
    mouseX = inputGetValue(INPUT_ACTION_POINTERX) * screenGetWidth()
    mouseY = inputGetValue(INPUT_ACTION_POINTERY) * screenGetHeight()

    -- Draw cursor
    spriteBatchPush(
      nil,
      mouseX - 2, mouseY - 2,
      mouseX + 2, mouseY + 2,
      colorRed(),
      0, 0,
      1, 1
    )
  end


  textDraw(10, 10, "Hello World")
  
  -- centerX = math.floor(screenGetWidth() / 2)
  -- centerY = math.floor(screenGetHeight() / 2)

  -- Draw elements
  -- backgroundDraw()
  -- borderDraw(
  --   centerX - (boardWidth / 2), centerY - (boardHeight / 2),
  --   boardWidth, boardHeight
  -- )

  -- i = 0
  -- -- Foreach cell
  -- local offX = centerX - (boardWidth / 2)
  -- local offY = centerY - (boardHeight / 2)
  -- for y = 0, sweeperRows - 1 do
  --   for x = 0, sweepwerCols - 1 do
  --     i = y * sweepwerCols + x
      
  --     -- Hovered
  --     if
  --       cells[i] == CELL_STATE_DEFAULT and
  --       mouseX >= x * tilesetCell.tileWidth + offX and mouseX < (x + 1) * tilesetCell.tileWidth + offX and
  --       mouseY >= y * tilesetCell.tileHeight + offY and mouseY < (y + 1) * tilesetCell.tileHeight + offY
  --     then
  --       cells[i] = CELL_STATE_HOVER
  --     else
  --       cells[i] = CELL_STATE_DEFAULT
  --     end
      
  --     cellDraw(
  --       x * tilesetCell.tileWidth + offX,
  --       y * tilesetCell.tileHeight + offY,
  --       cells[i]
  --     )
  --   end
  -- end
  spriteBatchFlush()

  cameraPopMatrix()
end