local love = assert( love, "This tool requires LOVE: love2d.org" )
--assert( require('mobdebug') ).start() --remote debugger
local map = require 'map'
local button = require 'button'
local SAVEDIRECTORY = "out/"
local Camera = require 'camera'
local wasKeyPressed

function love.load()

  local lfs = assert( love.filesystem )
  lfs.setIdentity( "dcearth", false )
  assert( lfs.createDirectory( SAVEDIRECTORY.."data/earth" ))
  assert( lfs.createDirectory( SAVEDIRECTORY.."data/graphics" ))


  love.graphics.setNewFont( 12, "mono" )
end

function love.directorydropped( path )
  if map.path then assert( love.filesystem.unmount( map.path ) ) end
  love.filesystem.mount( path, "" )
  return map.load( path )
end

function love.update( dt )
  local tx, ty = 0, 0
  local moveCamera = false
  if love.keyboard.isScancodeDown( "w" ) then moveCamera = true; ty = ty + 30 * dt end
  if love.keyboard.isScancodeDown( "a" ) then moveCamera = true; tx = tx - 30 * dt end
  if love.keyboard.isScancodeDown( "s" ) then moveCamera = true; ty = ty - 30 * dt end
  if love.keyboard.isScancodeDown( "d" ) then moveCamera = true; tx = tx + 30 * dt end
  if love.keyboard.isScancodeDown( "q" ) then Camera.Zoom( dt ) end
  if love.keyboard.isScancodeDown( "e" ) then Camera.Zoom( -dt ) end
  if moveCamera then Camera.Translate( tx, ty ) end


end

local toolButtons = {
  "Brush",
  "Move Nodes",
  "Add Nodes",
  "Edit Node",
  "Draw Polygon",
  "Erase Polygon"
}

local layerButtons = {
  "Africa",
  "Europe",
  "North America",
  "South America",
  "Asia",
  "Russia",
  "Travel Nodes",
  "AI Markers",
  "Cities",
  "Coastlines",
  "Coastlines Low",
  "Sailable"
}


function love.draw()
  if not map.loaded then
    return love.graphics.print( "Drag and drop folder to begin.")
  end

  love.graphics.push( "all" )
  map.draw()
  love.graphics.pop()

  --Layer buttons.
  do
    love.graphics.setColor( 1, 1, 1, 1 )
    local h = love.graphics.getHeight() - 60
    for x = 0, 300, 30 do
      love.graphics.rectangle( "line", x, h, 30, 30 )
    end

  end

  --Status bar.
  local x, y = love.mouse.getPosition()
  local wx, wy = Camera.GetWorldCoordinate( x, y )
  local bx, by = Camera.GetBitmapCoordinate( x, y )
  local h = love.graphics.getHeight() - 30
  love.graphics.setColor( 0.2, 0.1, 0.1, 1.0 )
  love.graphics.rectangle( "fill", 0, h, love.graphics.getWidth() / 2, 30 )
  love.graphics.setColor( 1, 1, 1, 1 )
  love.graphics.rectangle( "line", 0, h, love.graphics.getWidth() / 2, 30 )
  love.graphics.print(("SCREEN\t%d\t%d\nWORLD \t%5.2f\t%5.2f"):format(x, y, wx, wy), 0, h)
  love.graphics.print(("BITMAP\t%5.2f\t%5.2f"):format(bx, by), 200, h )

  --Edit box.
  love.graphics.rectangle( "line", love.graphics.getWidth() / 2, h, love.graphics.getWidth() / 2, 30 )
  if map.selected then
    love.graphics.setColor( 0.2, 0.1, 0.1, 1.0 )
    love.graphics.rectangle( "fill", 0, 0, 150 ,100 )    
    love.graphics.setColor( 1, 1, 1, 1 )
    love.graphics.rectangle( "line", 0, 0, 150 ,100 )   
    love.graphics.setColor( 1.2, 1.1, 1.1, 1.5 )
    love.graphics.print( map.selected:formatDisplayInfo(), 0, 0 )
  end
end

function love.resize(w, h)
  Camera.Resize( w, h )
end

function love.wheelmoved(x, y)
  Camera.Zoom( (y > 0) and 0.5 or -0.5 )
end

function love.mousepressed( x, y, button, istouch, presses )
  local wx, wy = Camera.GetWorldCoordinate( x, y )
  if map.loaded then
    if button == 1 then
      map.cities.lockSelection()
    else
      map.cities.unlockSelection()
    end
  end
  print( ("MOUSE\tx %f\ty %f\twx %f\twy %f"):format(x, y, wx, wy) )
end

function love.mousemoved( x, y, dx, dy, istouch )
  local wx, wy = Camera.GetWorldCoordinate( x, y )
  if map.loaded then 
    if map.cities.visible then map.selected = map.cities:selectNearest( wx, wy )
    elseif map.travelnodes.visible then map.selected = map.travelnodes:selectNearest( wx, wy )
    elseif map.ainodes.visible then map.selected = map.ainodes:selectNearest( wx, wy )
    end
  end
end

local function ToggleVisibility( layer )
  if not layer then return end
  local ml
  if map[layer] then ml = map[layer] end 
  if map.territory[layer] then ml = map.territory[layer] end
  assert( ml )
  ml.visible = not( ml.visible )
  print( layer, ml.visible )
end

local layerVisibilityKeybinds = {
  ["1"] = "africa",
  ["2"] = "europe",
  ["3"] = "northamerica",
  ["4"] = "southamerica",
  ["5"] = "southasia",
  ["6"] = "russia",
  ["7"] = "sailable",
  ["8"] = "coastlines",
  ["9"] = "coastlinesLow",
  ["0"] = "international",
  ["-"] = "cities",
  ["="] = "travelnodes",
  ["backspace"] = "ainodes",
}

function love.keypressed(key)
  ToggleVisibility( layerVisibilityKeybinds[key] )
  wasKeyPressed = true
  
  if key == "l" then
    return map.save()
  end
end