local VictoryScreen = Object:extend()

local TweenManager = require "game.modules.tweenmanager"

local BATTLECOMPLETE_START = 2
local BATTLECOMPLETE_STOP  = 4

local gui         = require "game.modules.gui"

local charutils   = require "game.utils.characters"

local tw, th = 280+48, 64
local rankWidth, rankHeight = 64, 48

local rankFactor = {1, 1.2, 1.5, 2}

function VictoryScreen:new(scene)
  self.scene  = scene
  self.assets = scene.assets
  self.turnSystem = scene.turns

  self:setVariables()
  self:getRewards()

  self.infoBox    = self:createInfoBox()
  self.rankBox    = gui.newTextBox("assets/gui/dialogbox.png", rankWidth, rankHeight)

  self.tweens = TweenManager(self)
  self:prepareAnimation()
end

function VictoryScreen:setVariables()
  -- Vignette Opacity
  self.vignetteOpacity  = 0

  -- Battle FInished Label
  self.labelOpacity     = 0
  local _, height = core.screen:getDimensions()
  self.labelY           = height/2

  -- Infobox
  self.tbSize     = 0.6
  self.tbOpacity  = 0

  -- Ranks
  self.rankOpacity  = 0
  self.rankSize     = 4

  self.addExp       = false

  self.charDone = {}
  self.nbrCharDone = 0
end

function VictoryScreen:prepareAnimation()
  -- Vignette
  self.tweens:newTween(0, 0.6, {vignetteOpacity=0.75}, 'inExpo')

  -- Label
  self.tweens:newTween(0, 0.6, {labelOpacity=1}, 'inExpo')
  self.tweens:newTween(0.9, 0.4, {labelY=32}, 'inExpo')

  -- Infobox
  self.tweens:newTween(1.4, 0.4, {tbSize=1, tbOpacity=1}, 'inExpo')

  -- Ranks
  self.tweens:newTween(1.9, 0.4, {rankSize=1, rankOpacity=1}, 'inExpo')
  self.tweens:newTween(2.4, 0.3, {shownExp=self.realExp, shownRings=self.realRings}, 'inExpo')
  self.tweens:newSwitch(2.7, {"addExp"})
end

function VictoryScreen:getRewards()
  self.rank = self.turnSystem:getRank()

  local exp, rings = self.turnSystem:getRewards()
  self.shownExp, self.shownRings = exp, rings
  self.realExp = exp * rankFactor[self.rank]
  self.realRings = rings * rankFactor[self.rank]

  for i,character in ipairs(self.turnSystem.player.list) do
    character.targetExp = character.exp + self.realExp
  end

  game.loot.rings = game.loot.rings + self.realRings
end

function VictoryScreen:createInfoBox()
  local textBox = gui.newTextBox("assets/gui/dialogbox.png", tw, th)
  local canvas = love.graphics.newCanvas(tw, th)
  love.graphics.setCanvas(canvas)
  love.graphics.draw(textBox, 0, 0)
  self.assets.fonts["SA2font"]:print("ENNEMIES:", 6, 6)
  self.assets.fonts["SA2font"]:print(self.turnSystem.ennemies:count(), tw - 6, 6, "right")
  self.assets.fonts["SA2font"]:print("COMBOS:", 6, th - 6 - 22)
  self.assets.fonts["SA2font"]:print("0/0", tw - 6, th - 6 - 22, "right")
  love.graphics.setCanvas()
  local imagedata = canvas:newImageData()
  local texture   = love.graphics.newImage( imagedata )
  imagedata:release()
  canvas:release()

  return texture
end

function VictoryScreen:update(dt)
  self.tweens:update(dt)

  if ( self.addExp and (not self:allCharDone())) then
    for i,character in ipairs(self.turnSystem.player.list) do
      self:addCharacterExp(dt, character)
    end
  end

  if (self:allCharDone()) then
    local keys =  self.scene:getKeys(1)
    if (keys["A"].isPressed) then
      --placeholder, pour l'instant on retourne juste au menu
      scenes.debug.menu()
    end
  end

end

function VictoryScreen:addCharacterExp(dt, character)
  if (self.charDone[character.name] == "done") then
    return 0
  end

  local level = character.abstract.level
  local xpAddRatio = charutils.getLevelExpRange(level) * 0.5
  local newExp = character.exp + (xpAddRatio * dt)

  if (newExp < character.targetExp) then
    character.exp = newExp
    local nextLevelExp = charutils.getExpValue(level + 1)
    if (character.exp >= nextLevelExp) then
      character.abstract:levelUp()
    end
  else
    character.exp = character.targetExp
    character.abstract.exp = character.exp
    self.charDone[character.name] = "done"
    self.nbrCharDone = self.nbrCharDone + 1
  end
end

function VictoryScreen:allCharDone()
  return (self.nbrCharDone >= self.turnSystem.player:count())
end

function VictoryScreen:draw()
  local width, height = core.screen:getDimensions()
  self:drawVignette(width, height)
  self:drawLabel(width/2, self.labelY, self.labelOpacity)

  self:drawInfobox(width/2, height/2 - 32, self.tbSize, self.tbOpacity)

  local startx = (width/2 - tw/2)
  local endx = (width/2 + tw/2)
  local scorex = startx + rankWidth + 8
  local starty = height/2 + 8
  local endy = starty + rankHeight

  self:drawRankBox(startx, starty, self.rankSize, self.tbOpacity, self.rankOpacity)
  self:drawText(scorex, starty, endx, "EXP:", math.floor(self.shownExp), self.tbOpacity)
  self:drawText(scorex, endy - 24, endx, "RINGS:", math.floor(self.shownRings), self.tbOpacity)

  for i,character in ipairs(self.turnSystem.player.list) do
    self:drawCharacterExp(startx + ((i-1)*84), endy + 8, character, self.tbOpacity)
  end

  if (self:allCharDone()) then
    self.assets.fonts["small"]:print("Press the A key to continue...", width/2, endy + 32, "center")
  end

  utils.graphics.resetColor()
end

function VictoryScreen:drawVignette(width, height)
  love.graphics.setColor(0, 0, 0, self.vignetteOpacity)

  love.graphics.rectangle("fill", 0, 0, width, height)
end

function VictoryScreen:drawLabel(x, y, opacity)
  love.graphics.setColor(1, 1, 1, opacity)

  local w, h = self.assets.images["battlecompleted"]:getDimensions()
  self.assets.images["battlecompleted"]:draw(x, y, 0, 1, 1, w/2, h/2)
end

function VictoryScreen:drawInfobox(x, y, size, opacity)
  love.graphics.setColor(1, 1, 1, opacity)
  love.graphics.draw(self.infoBox, x, y, 0, size, size, tw/2, th/2)
end

function VictoryScreen:drawRankBox(x, y, rankSize, boxOpacity, rankOpacity)
  love.graphics.setColor(1, 1, 1, boxOpacity)
  love.graphics.draw(self.rankBox, x, y)
  love.graphics.setColor(1, 1, 1, rankOpacity)
  self.assets.tileset["ranks"]:drawTile(self.rank, x + (rankWidth/2), y + (rankHeight/2), 0, rankSize, rankSize, 13, 13)
end

function VictoryScreen:drawText(x, y, x2, text1, text2, opacity)
  love.graphics.setColor(1, 1, 1, opacity)
  self.assets.fonts["SA2font"]:print(text1, x, y)
  self.assets.fonts["SA2font"]:print(text2, x2, y, "right")
end

function VictoryScreen:drawCharacterExp(x, y, character, opacity)
  love.graphics.setColor(1, 1, 1, opacity)
  self.assets.images["expbar"]:draw(x, y)
  character:drawIcon(x+1, y+6)
  love.graphics.setColor(0, 0.8, 0.1, opacity)
  local level = character.abstract.level
  local exp = character.exp
  local remainingExp = charutils.getRemainingExp(exp, level)
  local expRatio = charutils.getRelativeExpValue(exp, level) / charutils.getLevelExpRange(level)
  gui.drawBar(x + 22, y + 11, math.floor(56 * expRatio), 7)
  love.graphics.setColor(1, 1, 1, opacity)
  self.assets.fonts["hudnbrs_small"]:print(math.floor(remainingExp), x + 71, y + 11, "right")
  self.assets.fonts["hudnbrs_small"]:print(level, x + 72, y + 1, "right")
end

return VictoryScreen