local logging = require("modules.logging")
local json = require("modules.json")
local files= require("modules.files")

local font = love.graphics.newFont("fonts/FridayNightFunkin-Regular.ttf", 60)
local data = love.filesystem.getSaveDirectory()

local settingList = { -- Path for the positions in JSON
    Left = "Keybinds.1",
    Down = "Keybinds.2",
    Up = "Keybinds.3",
    Right = "Keybinds.4",
    Downscroll = "Downscroll",
    Offset = "Offset"
}

local categoryList = { -- The way its on the screen
    {
        name = "Keybinds",
        settings = {
            "Left",
            "Down",
            "Up",
            "Right"
        },
    },
    {
        name = "Gameplay",
        settings = {
            "Downscroll",
            "Offset"
        }
    }
}

local globalList = {}
local categories = {}
for index, category in next, categoryList do
    globalList[#globalList+1] = category.name
    categories[category.name] = true
    for index, setting in next, category.settings do
        globalList[#globalList+1] = setting
    end
end

return function()
    ---@class StateClass
    local state = {}

    local getting

    local currentSetting = 1
    local evilCurrentSetting = 1

    local settings = json.parse(files.read_file(data.."/Settings.json"))

    local function getSettingPath(setting)
        local pathString = settingList[setting]:split(".")
        print(logging.dump(pathString))
        local path = settings
        local last
        for index, pathPiece in next, pathString do
            if tonumber(pathPiece) then
                pathPiece = tonumber(pathPiece)
            end
            if index == #pathString then
                last = pathPiece
                break
            else
                path = path[pathPiece]
            end
        end
        return path, last
    end

    function state.keypressed(key)
        if getting then
            local path, last = getSettingPath(getting)
            path[last] = key
            getting = false
            return
        end
        if key == "down" then
            currentSetting = currentSetting + 1 > #globalList and 1 or currentSetting + 1
        elseif key == "up" then
            currentSetting = currentSetting - 1 <= 0 and #globalList or currentSetting - 1
        elseif key == "return" then
            local listSetting = globalList[currentSetting]
            if categories[listSetting] then return end
            local settingPath, settingLast = getSettingPath(listSetting)
            local setting = settingPath[settingLast]

            if type(setting) == "string" then
                getting = listSetting
            elseif type(setting) == "boolean" then
                settingPath[settingLast] = not settingPath[settingLast]
            end
        elseif key == "escape" then
            files.write_file(data.."/Settings.json", json.stringify(settings))

            state.changeState("menustate")
        elseif key == "right" or key == "left" then
            
            local listSetting = globalList[currentSetting]
            if categories[listSetting] then return end
            local settingPath, settingLast = getSettingPath(listSetting)
            local setting = settingPath[settingLast]

            if type(setting) == "number" then
                settingPath[settingLast] = settingPath[settingLast] + (key == "right" and 1 or -1)
            end
        end
    end

    function state.load()
        love.window.setTitle("TaggedEngine: Options")

        local bg = Image("images/menuBG.png")
        bg.layer = -5
    end

    function state.update(delta)
        evilCurrentSetting = Lerp(evilCurrentSetting, currentSetting, .05)

        render.cameraPosition = Vector2()
        render.cameraTarget = Vector2()
        render.updateSprites(delta)
    end

    function state.draw()
        render.drawSprites()
        render.drawUI()
        local curPos = -100 + (evilCurrentSetting - 1) * -100
        print(globalList[currentSetting])
        for index, category in next, categoryList do
            curPos = curPos + 100
            local color = globalList[currentSetting] == category.name and {.5,.5,.5} or {0,0,0}
            love.graphics.print({color, category.name}, font, 0, love.graphics.getHeight() / 2 + curPos - 10, 0)
            for settingIndex, setting in next, category.settings do
                curPos = curPos + 100
                local path, last = getSettingPath(setting)
                local val = path[last]
                local color = globalList[currentSetting] == setting and {.5,.5,.5} or {0,0,0}
                love.graphics.print({color, string.format("%s:   %s", setting, val)}, font, 0, love.graphics.getHeight() / 2 + curPos - 10, 0)
            end
        end
    end

    return state
end