local ReplaySelectScene = SCENE:extend()
ReplaySelectScene.title = "Replay"

require 'funcs'

function ReplaySelectScene:new()
    self:initList()
    PENTO_MODE = false
end

function ReplaySelectScene:initList()
    self.replays = {}
    replay_list = love.filesystem.getDirectoryItems('saves/replays/')
    table.sort(replay_list, function(a,b) return a > b end)
    self.replay_text = {}
    self.page_flip = 16
    self.page = 1
    gradeNames = {
        "19k", "18k", "17k", "16k", "15k", "14k", "13k", "12k", "11k", 
        "10k", "9k", "8k", "7k", "6k", "5k", "4k", "3k", "2k", "1k",
        "1D", "2D", "3D", "4D", "5D", "6D", "7D", "8D", "9D"
        }
    for i=1, #replay_list do
        replay_found = string.find(replay_list[i], "_replay.sav")
        if replay_found ~= nil then 
            table.insert(self.replays, replay_list[i])
            line_components = {}
            for str in string.gmatch(replay_list[i], "([^".."_".."]+)") do
                table.insert(line_components, str)
            end
            player_name = line_components[2]
            player_grade = gradeNames[tonumber(line_components[3])]
            player_score = line_components[4]
            if #player_grade == 2 then player_grade = ' '..player_grade end
            table.insert(self.replay_text, player_name..'  -   '..player_grade..' - '..string.format('%6d',player_score))
        end
    end
    self.dialog = false
    self.dialog_select = 1
    self.replay_select = 1
end

function ReplaySelectScene:render()
    MainBackground()
    love.graphics.setColor(0.4, 1, 1, 0.5)
    love.graphics.rectangle("fill", 0, 20 + 20 * self.replay_select, 640, 22)

    drawText('Name - Grade - Score', 40, 20, 1000, "left")
    drawText(string.format('Page %s', self.page), 20, 440, 1000, "left")
    j = 1
    i = 1
    while i <= #self.replay_text do
        if j > self.page_flip then j = 1
        elseif j < 1 then j = self.page_flip
        end
        if i > (self.page-1) * self.page_flip and i <= self.page * self.page_flip then 
            drawText(self.replay_text[i], 40, 20 + 20 * j, 1000, "left")
        end
        j = j + 1
        i = i + 1
    end
    if self.dialog then
        love.graphics.setColor(0, 0, 0, 0.5)
        love.graphics.rectangle("fill", 23, 43 + 20 * self.replay_select, 65, 40, 5, 5)
        love.graphics.setColor(0.3, 0.8, 0.8, 1)
        love.graphics.rectangle("fill", 20, 40 + 20 * self.replay_select, 65, 40, 5, 5)
        drawText("Play", 30, 40 + 20 * self.replay_select, 1000, "left")
        drawText("Delete", 30, 60 + 20 * self.replay_select, 1000, "left")
        drawText("o", 20, 40+((self.dialog_select-1) * 20) + (20 * self.replay_select), 1000, "left")

    end
    if self.replays[1] == nil then
        drawText('No replays yet!', 40, 40, 1000, "left")
    end
end

function ReplaySelectScene:changeOption(rel)
    local len = #self.replays
    self.replay_select = self.replay_select + rel
    if self.replay_select + ((self.page-1) * self.page_flip) > len then
        self.page = 1
        self.replay_select = 1
    elseif self.replay_select < 1 and self.page == 1 then
        self.page = 1+(math.floor(len / self.page_flip))
        self.replay_select = len - ((self.page-1) * self.page_flip)
    end
    if self.replay_select > self.page_flip then
        self.page = self.page + 1
        self.replay_select = 1
    elseif self.replay_select < 1 then
        self.page = self.page - 1
        self.replay_select = self.page_flip
    end
end

function ReplaySelectScene:changeDialog(rel)
    self.dialog_select = self.dialog_select + rel
    if self.dialog_select > 2 then self.dialog_select = 1
    elseif self.dialog_select < 1 then self.dialog_select = 2
    end
end

function ReplaySelectScene:onInputPress(e)
    selected_replay = self.replays[self.replay_select + ((self.page-1) * self.page_flip)]
    selected_replay_text = self.replay_text[self.replay_select + ((self.page-1) * self.page_flip)]
    if e.input == "menu_decide" or e.input == "rotate_left" or e.scancode == "return" then
        if self.replays[1] == nil then 
            SCENE = TitleScene()
        --if not self.dialog then
        --    self.dialog_select = 1
        --    self.dialog = true
        --elseif self.dialog_select == 2 then
        --    love.filesystem.remove(selected_replay)
        --    self:initList()
        --elseif self.dialog_select == 1 then
        --    line_components = {}
        --    for str in string.gmatch(selected_replay_text, "([^".."-".."]+)") do
        --        table.insert(line_components, str)
        --    end
        --    player_name = line_components[1]
        --    player_grade = string.gsub(line_components[2], " ", "")
        --    scene = GameScene(player_name, selected_replay, player_grade)
        --end
        else
            line_components = {}
            for str in string.gmatch(selected_replay_text, "([^".."-".."]+)") do
                table.insert(line_components, str)
            end
            player_name = line_components[1]
            player_grade = string.gsub(line_components[2], " ", "")
            SCENE = GameScene(player_name, selected_replay, player_grade)
        end
    elseif e.input == "up" or e.scancode == "up" then
        if self.replays[1] == nil then SCENE = TitleScene() end
        if not self.dialog then self:changeOption(-1)
        else self:changeDialog(-1) end
    elseif e.input == "down" or e.scancode == "down" then
        if self.replays[1] == nil then SCENE = TitleScene() end
        if not self.dialog then self:changeOption(1)
        else self:changeDialog(1) end
    elseif e.input == "menu_back" or e.input == "rotate_right" or e.scancode == "backspace" or e.scancode == "delete" then
        if self.replays[1] == nil then SCENE = TitleScene() end
        if not self.dialog then SCENE = TitleScene()
        else self.dialog = false end
    end
end

return ReplaySelectScene