#include "../include/UsersSidePanel.hpp"
#include "../include/RoomTopPanel.hpp"
#include "../include/RoomSidePanel.hpp"
#include "../include/ResourceCache.hpp"
#include "../include/StaticImage.hpp"
#include "../include/Gif.hpp"
#include "../include/Settings.hpp"
#include "../include/ColorScheme.hpp"
#include "../include/Room.hpp"
#include <SFML/Graphics/RectangleShape.hpp>
#include <SFML/Graphics/CircleShape.hpp>
#include <SFML/Graphics/Sprite.hpp>
#include <SFML/Graphics/Text.hpp>
#include <dchat/Room.hpp>
#include <vector>
#include <cmath>
#include <sibs/Functional.hpp>

using namespace std;

namespace dchat
{
    const float WIDTH = 250.0f;
    const unsigned int FONT_SIZE = 20;
    
    const float AVATAR_DIAMETER = 40.0f;
    const float AVATAR_PADDING_SIDE = 10.0f;
    const float PADDING_BOTTOM = 20.0f;
    const i64 USER_TIMEOUT_SEC = 25;
    
    static void renderUser(Cache *cache, const User *user, sf::Shader *circleShader, sf::RenderWindow &window, sf::Vector2f &position, const sf::Font *font, const float textHeight, bool isUserOnline)
    {
        if(position.y + AVATAR_DIAMETER > 0.0f && position.y < window.getSize().y)
        {
            // Max avatar size = 1mb
            const ContentByUrlResult avatarResult = cache->getContentByUrl(user->avatarUrl, 1024 * 1024);
            if(avatarResult.type == ContentByUrlResult::Type::CACHED)
            {
                circleShader->setUniform("texture", sf::Shader::CurrentTexture);
                
                if(avatarResult.cachedType == ContentByUrlResult::CachedType::STATIC_IMAGE)
                {
                    auto *staticImage = static_cast<SfmlStaticImage*>(avatarResult.staticImage);
                    // TODO: Store this sprite somewhere, might not be efficient to create a new sprite object every frame
                    sf::Sprite sprite(staticImage->texture);
                    auto textureSize = staticImage->texture.getSize();
                    sprite.setPosition(sf::Vector2f(floor(position.x), floor(position.y)));
                    sprite.setScale(sf::Vector2f(AVATAR_DIAMETER * Settings::getScaling() / (float)textureSize.x, AVATAR_DIAMETER * Settings::getScaling() / (float)textureSize.y));
                    sprite.setColor(isUserOnline ? sf::Color::White : sf::Color(255, 255, 255, 100));
                    window.draw(sprite, circleShader);
                }
                else if(avatarResult.cachedType == ContentByUrlResult::CachedType::GIF)
                {
                    auto *gif = static_cast<SfmlGif*>(avatarResult.gif);
                    gif->update();
                    auto gifSize = gif->getSize();

                    sf::Sprite sprite(gif->texture);
                    sprite.setPosition(sf::Vector2f(floor(position.x), floor(position.y)));
                    sprite.setScale(sf::Vector2f(AVATAR_DIAMETER * Settings::getScaling() / (float)gifSize.x, AVATAR_DIAMETER * Settings::getScaling() / (float)gifSize.y));
                    sprite.setColor(isUserOnline ? sf::Color::White : sf::Color(255, 255, 255, 100));
                    window.draw(sprite, circleShader);
                }
            }
            else
            {
                sf::CircleShape avatarCircle(AVATAR_DIAMETER * 0.5f * Settings::getScaling(), 60 * Settings::getScaling());
                avatarCircle.setPosition(sf::Vector2f(floor(position.x), floor(position.y)));
                avatarCircle.setFillColor(isUserOnline ? ColorScheme::getBackgroundColor() + sf::Color(30, 30, 30) : ColorScheme::getBackgroundColor() * sf::Color(255, 255, 255, 100));
                window.draw(avatarCircle);
            }
            
            // TODO: Remove this shit
            sf::String str = sf::String::fromUtf8(user->nickname.begin(), user->nickname.end());
            sf::Text text(str, *font, FONT_SIZE * Settings::getScaling());
            text.setPosition(floor(position.x + (AVATAR_DIAMETER + AVATAR_PADDING_SIDE) * Settings::getScaling()), floor(position.y + AVATAR_DIAMETER * 0.5f - textHeight * 0.5f));
            text.setFillColor(isUserOnline ? sf::Color(15, 192, 252) : sf::Color(15, 192, 252, 100));
            window.draw(text);
        }
        position.y += ((AVATAR_DIAMETER + PADDING_BOTTOM) * Settings::getScaling());
    }
    
    void UsersSidePanel::draw(sf::RenderWindow &window, Cache *cache)
    {
        auto windowSize = window.getSize();
        float posY = std::min((windowSize.y - RoomTopPanel::getHeight()) * 0.5f, RoomSidePanel::getHeight());
        
        std::shared_ptr<Room> currentRoom = getCurrentRoom();
        if(!currentRoom) return;
        
        const sf::Font *font = ResourceCache::getFont("fonts/Nunito-Regular.ttf");
        sf::Vector2f position(10.0f, posY);
        
        const float textHeight = font->getLineSpacing(FONT_SIZE * Settings::getScaling());
        
        //i64 timestampSec = currentRoom->getSyncedTimestampUtcInSec();
        auto &channelUsers = currentRoom->getUsers();
       // auto currentChannelUsers = sibs::makeFunction(channelUsers.data(), channelUsers.data() + channelUsers.size());
       // for(BridgeService *bridgeService : currentRoom->getBridgeServices())
       // {
      //      auto &bridgeServiceUsers = bridgeService->getUsers();
      //      currentChannelUsers.merge(sibs::makeFunction(bridgeServiceUsers.data(), bridgeServiceUsers.data() + bridgeServiceUsers.size()));
      //  }
        
        u32 numOnlineUsers = 0;
        u32 numOfflineUsers = 0;
        for(auto &it : channelUsers)
        {
            const User *user = it.second.get();
            // TODO: Fix this
            //if(user->isConnected(timestampSec))
            //    ++numOnlineUsers;
            //else
            //    ++numOfflineUsers;
        }
        
        // TODO: Remove this shit
        sf::String str = "Online - ";
        str += to_string(numOnlineUsers);
        sf::Text text(str, *font, FONT_SIZE * Settings::getScaling());
        text.setPosition(position);
        text.setFillColor(ColorScheme::getTextRegularColor() * sf::Color(255, 255, 255, 100));
        window.draw(text);
        position.y += floor(font->getLineSpacing(text.getCharacterSize()));
        position.y += PADDING_BOTTOM * Settings::getScaling() * 0.5f;
        
        sf::Shader *circleShader = ResourceCache::getShader("shaders/circleMask.glsl", sf::Shader::Fragment);
        
        for(auto &it : channelUsers)
        {
            const User *user = it.second.get();
            // TODO: Fix this
            //if(user->isConnected(timestampSec))
                renderUser(cache, user, circleShader, window, position, font, textHeight, true);
        }
        
        if(numOfflineUsers == 0) return;
        position.y += PADDING_BOTTOM * Settings::getScaling();
        
        // TODO: Remove this shit
        str = "Offline - ";
        str += to_string(numOfflineUsers);
        text.setString(str);
        text.setPosition(position);
        text.setFillColor(ColorScheme::getTextRegularColor() * sf::Color(255, 255, 255, 100));
        window.draw(text);
        position.y += floor(font->getLineSpacing(text.getCharacterSize()));
        position.y += PADDING_BOTTOM * Settings::getScaling() * 0.5f;
        
        // TODO: Fix this
        //for(const User *user : channelUsers)
        //{
       //     const User *user = it.second.get();
            // TODO: Fix this
            //if(!user->isConnected(timestampSec))
      //          renderUser(cache, user, circleShader, window, position, font, textHeight, false);
      //  }
    }
    
    float UsersSidePanel::getWidth()
    {
        return floor(WIDTH * Settings::getScaling());
    }
}