--Data tables used in button creation
ref_modifyPitchButtons = {
  { offset = -0.37, func = function() click_modify(-1, 0) end },
  { offset = -1.11, func = function() click_modify(-5, 0) end },
  { offset = 0.37,  func = function() click_modify(1, 0) end },
  { offset = 1.11,  func = function() click_modify(5, 0) end },
}
ref_modifyDistanceButtons = {
  { offset = -0.37, func = function() click_modify(-1, 1) end },
  { offset = -1.11, func = function() click_modify(-5, 1) end },
  { offset = 0.37,  func = function() click_modify(1, 1) end },
  { offset = 1.11,  func = function() click_modify(5, 1) end },
}

--On-demand save function, remembers pitch and distance values
function updateSave()
  self.script_state = JSON.encode({ pitch = pitch, distance = distance })
end

--Startup, loading memory
function onload(saved_data)
  --Loads the tracking for if the game has started yet
  if saved_data ~= "" then
    local loaded_data = JSON.decode(saved_data)
    pitch = loaded_data.pitch
    distance = loaded_data.distance
  else
    pitch = 45
    distance = 30
  end

  createInputs()
  createButtons()
end

--Activated by finishing writing in the input box, updates save info
function input_entered(inputString, stillEditing, typeIndex)
  if stillEditing == false then
    --Check to avoid empty input strings
    if tonumber(inputString) == nil then inputString = 0 end
    --Update save data
    if typeIndex == 0 then
      pitch = inputString
    else
      distance = inputString
    end
    updateSave()
  end
end

--Activated by button, the -5 -1 +1 +5 buttons
function click_modify(amount, typeIndex)
  if typeIndex == 0 then
    pitch = pitch + amount
    self.editInput({ index = typeIndex, value = pitch })
  else
    distance = distance + amount
    self.editInput({ index = typeIndex, value = distance })
  end
  updateSave()
end

--Activated by button, uses the data to move the camera
function click_setCamera(_, color)
  --Check if there is another object to use instead of self
  local targetObj = self
  local nameGUID = string.sub(self.getName(), 1, 6)
  if getObjectFromGUID(nameGUID) ~= nil then
    targetObj = getObjectFromGUID(nameGUID)
  end

  --Check if there is an offset to use instead of 180
  local offsetY = 180
  local offsetString = string.sub(self.getName(), 7)
  if tonumber(string.match(offsetString, "%d+")) ~= nil then
    offsetY = tonumber(string.match(offsetString, "%d+"))
  end

  --Move camera into position around object
  local pos = targetObj.getPosition()
  local rot = targetObj.getRotation()
  rot.y = rot.y + offsetY
  Player[color].lookAt({ position = pos, pitch = pitch, yaw = rot.y, distance = distance })

  --Send values to main tile
  for _, v in ipairs(getObjects()) do
    if v.getName() == "jaqenZann's Navigation Overlay Tile" then
      v.call('updateEditCamera', { { pos.x, pos.y, pos.z }, tonumber(pitch), rot.y, tonumber(distance) })
      break
    end
  end
end

--Button/Input creation
--Text boxes for number input
function createInputs()
  local funcName = "inputFuncNamePitch"
  local func = function(_, _, x, z) input_entered(x, z, 0) end
  self.setVar(funcName, func)
  self.createInput({
    input_function = funcName,
    function_owner = self,
    label = "input",
    alignment = 2,
    position = { -3.4, 0.35, -0.21 },
    rotation = { 0, 0, 0 },
    height = 420,
    width = 1400,
    font_size = 400,
    color = { 57 / 255, 46 / 255, 40 / 255 },
    font_color = { 1, 1, 1 },
    value = pitch,
    validation = 3
  })
  local funcName = "inputFuncNameDistance"
  local func = function(_, _, x, z) input_entered(x, z, 1) end
  self.setVar(funcName, func)
  self.createInput({
    input_function = funcName,
    function_owner = self,
    label = "input",
    alignment = 4,
    position = { 3.4, 0.35, -0.21 },
    rotation = { 0, 0, 0 },
    height = 420,
    width = 1400,
    font_size = 400,
    color = { 57 / 255, 46 / 255, 40 / 255 },
    font_color = { 1, 1, 1 },
    value = distance,
    validation = 3
  })
end

--Center button and -5 - +5 buttons
function createButtons()
  self.createButton({
    click_function = "click_setCamera",
    function_owner = self,
    position = { 0, 0.4, 0 },
    height = 900,
    width = 900,
    color = { 1, 1, 1, 0 },
    tooltip = "Set camera to this angle"
  })

  for i, ref in ipairs(ref_modifyPitchButtons) do
    local funcName = "pitchModifyFunction_" .. i
    self.setVar(funcName, ref.func)
    local pos = { -3.4 + ref.offset, 0.3, 0.6 }
    self.createButton({
      click_function = funcName,
      function_owner = self,
      position = pos,
      height = 240,
      width = 320,
      color = { 1, 1, 1, 0 }
    })
  end

  for i, ref in ipairs(ref_modifyDistanceButtons) do
    local funcName = "distanceModifyFunction_" .. i
    self.setVar(funcName, ref.func)
    local pos = { 3.4 + ref.offset, 0.3, 0.6 }
    self.createButton({
      click_function = funcName,
      function_owner = self,
      position = pos,
      height = 240,
      width = 320,
      color = { 1, 1, 1, 0 }
    })
  end
end