local DonBGBase       = require("background/bg_objects/donbg/base")
local BGNormal        = require("background/bg_objects/bg_normal")
local Footer          = require("background/bg_objects/footer")
local ChibiController = require("background/bg_objects/chibi")

local COLLAB_PATH     = "background/collab/dan"

-- Custom DonBG: DonBG6 draw-shape but with extra bg_overlay_2 scroll
local DanDonBG        = setmetatable({}, { __index = DonBGBase })
DanDonBG.__index      = DanDonBG

function DanDonBG.new(player_num)
    local self = setmetatable({}, DanDonBG)
    local base = DonBGBase.new(1, player_num, COLLAB_PATH)
    for k, v in pairs(base) do self[k] = v end
    self.overlay_move = tex.get_animation(2, "background")
    local bg_overlay_info = tex.get_texture_info(self.name, "bg_overlay")
    self.bg_overlay_width = bg_overlay_info and bg_overlay_info.width or 0
    local bg_overlay_2_info = tex.get_texture_info(self.name, "bg_overlay_2")
    self.bg_overlay_2_width = bg_overlay_2_info and bg_overlay_2_info.width or 0
    self.overlay_move_2 = anim.move(8000, {
        total_distance = -self.bg_overlay_2_width, loop = true
    })
    self._id_bg_overlay   = tex.get_texture(COLLAB_PATH .. "/" .. self.name .. "/" .. "bg_overlay") or 0
    self._id_bg_overlay_2 = tex.get_texture(COLLAB_PATH .. "/" .. self.name .. "/" .. "bg_overlay_2") or 0
    self._id_overlay_1    = tex.get_texture(COLLAB_PATH .. "/" .. self.name .. "/" .. "overlay_1") or 0
    self._id_bg_overlay_3 = tex.get_texture(COLLAB_PATH .. "/" .. self.name .. "/" .. "bg_overlay_3") or 0
    self._id_overlay_2    = tex.get_texture(COLLAB_PATH .. "/" .. self.name .. "/" .. "overlay_2") or 0
    return self
end

function DanDonBG:update(current_time_ms)
    DonBGBase.update(self, current_time_ms)
    self.overlay_move:update(current_time_ms)
    self.overlay_move_2:update(current_time_ms)
end

function DanDonBG:draw_textures(fade, y, frame)
    local sc = tex.get_screen_scale()
    tex.draw_texture(self._id_bg)
    for i = 0, math.floor(3 * sc) - 1 do
        tex.draw_texture(self._id_bg_overlay, { x = i * self.bg_overlay_width, y = y })
    end
    for i = 0, math.floor(3 * sc) - 1 do
        tex.draw_texture(self._id_bg_overlay_2, {
            x = (i * self.bg_overlay_2_width) + self.overlay_move_2.attribute, y = y
        })
    end
    local step = math.floor(2 * sc)
    for i = 0, math.floor(6 * sc) - 1, step do
        tex.draw_texture(self._id_overlay_1, {
            x = (i * 264 * sc) + self.move.attribute * 3,
            y = -self.move.attribute * 0.85 + y
        })
    end
    tex.draw_texture(self._id_bg_overlay_3)
    for i = 0, math.floor(5 * sc) - 1 do
        tex.draw_texture(self._id_overlay_2, {
            x = (i * 328 * sc) + self.move.attribute,
            y = self.overlay_move.attribute + y
        })
    end
end

-- Background

local DanBackground = {}
DanBackground.__index = DanBackground

function DanBackground.new(player_num, bpm)
    local self     = setmetatable({}, DanBackground)
    self.donbg     = DanDonBG.new(player_num)
    self.bg_normal = BGNormal.Base.new(0, COLLAB_PATH)
    self.footer    = Footer.new(COLLAB_PATH, 0)
    self.chibi     = ChibiController.new(bpm, COLLAB_PATH, 2)
    return self
end

function DanBackground:update(current_ms, bpm)
    self.donbg:update(current_ms, bpm)
    self.chibi:update(current_ms, bpm)
end

function DanBackground:handle_good(player_num) self.chibi:add_chibi(player_num, false) end

function DanBackground:handle_ok(player_num) self.chibi:add_chibi(player_num, false) end

function DanBackground:handle_bad(player_num) self.chibi:add_chibi(player_num, true) end

function DanBackground:handle_drumroll(player_num) end

function DanBackground:handle_balloon(player_num) end

function DanBackground:handle_gauge(player_num, progress, is_clear, is_rainbow)
    self.donbg:set_clear(is_clear)
end

function DanBackground:draw_back()
    self.bg_normal:draw()
    self.donbg:draw()
    self.footer:draw()
    self.chibi:draw()
end

function DanBackground:draw_fore() end

function DanBackground:destroy()
    self.donbg:destroy()
    self.bg_normal:destroy()
    self.footer:destroy()
    self.chibi:destroy()
end

return DanBackground