local logger = require("utils/logger")
local lovehandler = require("utils/love_file_handler")
local zip = require("utils/zip")

local multi,  thread = require("multi"):init({priority=true})
multi.setClock(require("socket").gettime) -- When on linux os.clock doesn't reture actual seconds the program has elapsed for
local GLOBAL, THREAD = require("multi.integration.loveManager"):init()

local fileHandler, logCtrl = lovehandler.new("logs/jeopardy.log", {
    max_size   = 512 * 1024,  -- rotate at 512 KB
    max_files  = 3,
    buffered   = false,       -- write every line immediately (safest for games)
})

lovehandler.auto_flush_on_quit(logCtrl)

log = logger.new("jeopardy", {
  level    = logger.LEVELS.INFO,
  handlers = {
    logger.handlers.ConsoleHandler({ colours = true }),
    fileHandler,
  },
})

local gui    = require("gui")
local color  = require("gui.core.color")
local title  = require("menus.title")
local menu   = require("gui.core.menus")

color.indexColor("bg","#2b348b")
color.indexColor("tile_bg","#5459e4")
color.indexColor("header_tile","#2a2e91")
color.indexColor("status_font", "#e4b82a")
color.indexColor("title_font","#b16d24")
color.indexColor("question_bg","#363ac8")
color.indexColor("tile_font","#ffffff")
color.indexColor("header_font","#fef6eeda")
color.indexColor("correct", "#52b11b")
color.indexColor("skip", "#5d5d5d")
color.indexColor("wrong", "#bd2626")
color.indexColor("shaderColA","rgb01(0.10, 0.12, 0.38)")
color.indexColor("shaderColB","rgb01(0.20, 0.22, 0.58)")
color.indexColor("shaderColC","rgb01(0.55, 0.58, 0.78)")

require("gui.addons")

gui:setHotKey({"f11"})(function()
    fullscreen, fstype = love.window.getFullscreen()
	love.window.setFullscreen(not fullscreen, "desktop")
end)

local loadLog = log:child("load")
local old = multi.error

multi.error = function(self, err)
    loadLog:error("Error: %s", err)
    loadLog:error(debug.traceback())
    love.quit()
end

function readFileData(path)
    return io.open(path,"r"):read("*a")
end

function love.load()
    -- local z = zip.new()
    -- z:add("main.lua",readFileData("main.lua"))
    -- z:add("package.bat",readFileData("package.bat"))
    -- local data = z:build()
    -- local file = io.open("test.zip","wb")
    -- file:write(data)
    -- file:close()

    loadLog:info("Starting Jeopardy Game")
    loadLog:debug("Setting game identity to jeopardy")
    for i,v in ipairs(color.listColors(showAllColors)) do
        loadLog:debug("Indexed color %s",v)
    end
    love.filesystem.setIdentity("jeopardy")
    loadLog:trace("Creating save directory")
    success = love.filesystem.createDirectory("")
    if not success then
        loadLog:fatal("Unable to create save directory")
        love.quit()
    end
    loadLog:trace("Creating save directory")
    gui:cacheImage({"assets/images/checked.png","assets/images/unchecked.png","assets/images/speaker.png"})
    gui:setAspectSize(1920, 1080)
    gui.aspect_ratio = true
    loadLog:debug("Creating main background image")
    local bg = gui:newImageLabel("assets/images/background.png")
    bg:fullFrame()

    loadLog:debug("Init menu module")
    menu.init(bg)
    loadLog:debug("Displaying title menu")
    title:visible(true)
end

function love.update(dt)
    gui.update(dt)
    multi:uManager(dt)
end

function love.draw()
    gui.draw()
end

-- custom shaders

gui.NewShader("background", [[
    extern float time;
    extern vec2  size;
    extern vec3  colA;
    extern vec3  colB;
    extern vec3  colC;

    // Hash function (pseudo-random from 2D input)
    float hash(vec2 p) {
        p = fract(p * vec2(127.1, 311.7));
        p += dot(p, p + 19.19);
        return fract(p.x * p.y);
    }

    // Smooth value noise
    float noise(vec2 p) {
        vec2 i = floor(p);
        vec2 f = fract(p);
        // Quintic smoothstep
        vec2 u = f * f * f * (f * (f * 6.0 - 15.0) + 10.0);

        float a = hash(i);
        float b = hash(i + vec2(1.0, 0.0));
        float c = hash(i + vec2(0.0, 1.0));
        float d = hash(i + vec2(1.0, 1.0));

        return mix(mix(a, b, u.x), mix(c, d, u.x), u.y);
    }

    // Fractional Brownian Motion – layers of noise at different scales
    float fbm(vec2 p) {
        float value = 0.0;
        float amplitude = 0.5;
        float frequency = 1.0;
        for (int i = 0; i < 6; i++) {
            value     += amplitude * noise(p * frequency);
            frequency *= 2.0;
            amplitude *= 0.5;
        }
        return value;
    }

    vec4 effect(vec4 color, Image tex, vec2 texCoord, vec2 screenCoord) {
        // Normalized UV with aspect ratio correction
        vec2 uv = screenCoord / size;

        // Slow, asymmetric time offsets per axis for lava-lamp feel
        float t1 = time * 0.008;
        float t2 = time * 0.005;

        // Domain-warped FBM: feed FBM output back into itself
        // This creates the bulging, self-folding blob shapes.
        vec2 q = vec2(
            fbm(uv + vec2(0.0,  0.0) + t1),
            fbm(uv + vec2(5.2,  1.3) + t2)
        );

        vec2 r = vec2(
            fbm(uv + 4.0 * q + vec2(1.7, 9.2) + t1 * 0.7),
            fbm(uv + 4.0 * q + vec2(8.3, 2.8) + t2 * 0.9)
        );

        float n = fbm(uv + 4.0 * r + t1 * 0.4);

        vec3 col = mix(colA, colB, clamp(n * 2.0,       0.0, 1.0));
            col = mix(col,  colC, clamp(n * 2.0 - 0.6, 0.0, 1.0));

        return vec4(col, 1.0);
    }
]])