import { addExtensionSettings } from "@/seqta/utils/Adders/AddExtensionSettings";
import { loadHomePage } from "@/seqta/utils/Loaders/LoadHomePage";
import { SendNewsPage } from "@/seqta/utils/SendNewsPage";
import { setupSettingsButton } from "@/seqta/utils/setupSettingsButton";

import { GetThresholdOfColor } from "@/seqta/ui/colors/getThresholdColour";
import { appendBackgroundToUI } from "./ImageBackgrounds";
import stringToHTML from "@/seqta/utils/stringToHTML";
import { settingsState } from "@/seqta/utils/listeners/SettingsState";
import { updateAllColors } from "./colors/Manager";
import { delay } from "@/seqta/utils/delay";

let cachedUserInfo: any = null;

async function getUserInfo() {
  if (cachedUserInfo) return cachedUserInfo;

  try {
    const response = await fetch(`${location.origin}/seqta/student/login`, {
      method: "POST",
      headers: {
        "Content-Type": "application/json; charset=utf-8",
      },
      body: JSON.stringify({
        mode: "normal",
        query: null,
        redirect_url: location.origin,
      }),
    });

    const responseData = await response.json();
    cachedUserInfo = responseData.payload;
    return cachedUserInfo;
  } catch (error) {
    console.error("Error fetching user info:", error);
    throw error;
  }
}

export async function AddBetterSEQTAElements() {
  if (settingsState.onoff) {
    if (settingsState.DarkMode) {
      document.documentElement.classList.add("dark");
    }

    const fragment = document.createDocumentFragment();
    const menu = document.getElementById("menu")!;
    const menuList = menu.firstChild as HTMLElement;

    createHomeButton(fragment, menuList);
    createNewsButton(fragment, menu);

    menuList.insertBefore(fragment, menuList.firstChild);

    try {
      await Promise.all([
        appendBackgroundToUI(),
        handleUserInfo(),
        handleStudentData(),
      ]);
    } catch (error) {
      console.error("Error initializing UI elements:", error);
    }

    setupEventListeners();
    await addDarkLightToggle();
    customizeMenuToggle();
  }

  addExtensionSettings();
  await createSettingsButton();
  setupSettingsButton();
}

function createHomeButton(fragment: DocumentFragment, _: HTMLElement) {
  const container = document.getElementById("content")!;
  const div = document.createElement("div");
  div.classList.add("titlebar");
  container.append(div);

  const NewButton = stringToHTML(
    '<li class="item" data-key="home" id="homebutton" data-path="/home" data-betterseqta="true"><label><svg style="width:24px;height:24px" viewBox="0 0 24 24"><path fill="currentColor" d="M10,20V14H14V20H19V12H22L12,3L2,12H5V20H10Z" /></svg><span>Home</span></label></li>',
  );
  if (NewButton.firstChild) {
    fragment.appendChild(NewButton.firstChild);
  }
}

async function handleUserInfo() {
  try {
    const info = await getUserInfo();
    updateUserInfo(info);
  } catch (error) {
    console.error("Error fetching and processing student data:", error);
  }
}

function updateUserInfo(info: {
  basic: boolean;
  clientIP: string[] | null;
  email: string | null;
  id: number | null;
  lastAccessedTime: number | null;
  meta: {
    code: string | null;
    governmentID: string | null;
  };
  personUUID: string | null;
  status: number | null;
  synergeticCommunityUrl: string | null;
  type: string | null;
  userCode: string | null;
  userDesc: string | null;
  userName: string | null;
}) {
  const titlebar = document.getElementsByClassName("titlebar")[0];

  const userInfo = stringToHTML(/* html */ `
    <div class="userInfosvgdiv tooltip">
      <svg class="userInfosvg" viewBox="0 0 24 24"><path fill="var(--text-primary)" d="M12,19.2C9.5,19.2 7.29,17.92 6,16C6.03,14 10,12.9 12,12.9C14,12.9 17.97,14 18,16C16.71,17.92 14.5,19.2 12,19.2M12,5A3,3 0 0,1 15,8A3,3 0 0,1 12,11A3,3 0 0,1 9,8A3,3 0 0,1 12,5M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12C22,6.47 17.5,2 12,2Z"></path></svg>
      <div class="tooltiptext topmenutooltip" id="logouttooltip"></div>
    </div>
  `).firstChild;
  titlebar.append(userInfo!);

  const userinfo = stringToHTML(/* html */ `
    <div class="userInfo">
      <div class="userInfoText">
        <div style="display: flex; align-items: center;">
          <p class="userInfohouse userInfoCode"></p>
          <p class="userInfoName">${info.userDesc}</p>
        </div>
        <p class="userInfoCode">${info.meta.code} // ${info.meta.governmentID}</p>
      </div>
    </div>
  `).firstChild;
  titlebar.append(userinfo!);

  var logoutbutton = document.getElementsByClassName("logout")[0];
  var userInfosvgdiv = document.getElementById("logouttooltip")!;
  userInfosvgdiv.appendChild(logoutbutton);
}

async function handleStudentData() {
  try {
    const response = await fetch(
      `${location.origin}/seqta/student/load/message/people`,
      {
        method: "POST",
        headers: {
          "Content-Type": "application/json; charset=utf-8",
        },
        body: JSON.stringify({ mode: "student" }),
      },
    );

    const responseData = await response.json();
    let students = responseData.payload;
    await updateStudentInfo(students);
  } catch (error) {
    console.error("Error fetching and processing student data:", error);
  }
}

async function updateStudentInfo(students: any) {
  const info = await getUserInfo();
  var index = students.findIndex(function (person: any) {
    return (
      person.firstname == info.userDesc.split(" ")[0] &&
      person.surname == info.userDesc.split(" ")[1]
    );
  });

  let houseelement1 = document.getElementsByClassName("userInfohouse")[0];
  const houseelement = houseelement1 as HTMLElement;

  if (students[index]?.house) {
    if (students[index]?.house_colour) {
      houseelement.style.background = students[index].house_colour;
      try {
        let colorresult = GetThresholdOfColor(students[index]?.house_colour);
        houseelement.style.color =
          colorresult && colorresult > 300 ? "black" : "white";
        houseelement.innerText = students[index].year + students[index].house;
      } catch (error) {
        houseelement.innerText = students[index].house;
      }
    }
  } else {
    try {
      houseelement.innerText = students[index].year;
    } catch (err) {
      houseelement.innerText = "N/A";
    }
  }
}

function createNewsButton(fragment: DocumentFragment, menu: HTMLElement) {
  const NewsButtonStr =
    '<li class="item" data-key="news" id="newsbutton" data-path="/news" data-betterseqta="true"><label><svg style="width:24px;height:24px" viewBox="0 0 24 24"><path fill="currentColor" d="M20 3H4C2.89 3 2 3.89 2 5V19C2 20.11 2.89 21 4 21H20C21.11 21 22 20.11 22 19V5C22 3.89 21.11 3 20 3M5 7H10V13H5V7M19 17H5V15H19V17M19 13H12V11H19V13M19 9H12V7H19V9Z" /></svg><span>News</span></label></li>';
  const NewsButton = stringToHTML(NewsButtonStr);

  if (NewsButton.firstChild) {
    fragment.appendChild(NewsButton.firstChild);
  }

  let iconCover = document.createElement("div");
  iconCover.classList.add("icon-cover");
  iconCover.id = "icon-cover";
  menu.appendChild(iconCover);
}

function setupEventListeners() {
  const menuCover = document.querySelector("#icon-cover");
  const homebutton = document.getElementById("homebutton");
  const newsbutton = document.getElementById("newsbutton");

  homebutton?.addEventListener("click", function () {
    if (
      !homebutton.classList.contains("draggable") &&
      !homebutton.classList.contains("active")
    ) {
      loadHomePage();
    }
  });

  newsbutton?.addEventListener("click", function () {
    if (
      !newsbutton.classList.contains("draggable") &&
      !newsbutton.classList.contains("active")
    ) {
      SendNewsPage();
    }
  });

  menuCover?.addEventListener("click", function () {
    location.href = "../#?page=/home";
    loadHomePage();
    (
      document.getElementById("menu")!.firstChild! as HTMLElement
    ).classList.remove("noscroll");
  });
}

async function createSettingsButton() {
  let SettingsButton = stringToHTML(/* html */ `
    <button class="addedButton tooltip" id="AddedSettings">
      <svg width="24" height="24" viewBox="0 0 24 24">
        <g><g><path d="M23.182,6.923c-.29,0-3.662,2.122-4.142,2.4l-2.8-1.555V4.511l4.257-2.456a.518.518,0,0,0,.233-.408.479.479,0,0,0-.233-.407,6.511,6.511,0,1,0-3.327,12.107,6.582,6.582,0,0,0,6.148-4.374,5.228,5.228,0,0,0,.333-1.542A.461.461,0,0,0,23.182,6.923Z"></path><path d="M9.73,10.418,7.376,12.883c-.01.01-.021.016-.03.025L1.158,19.1a2.682,2.682,0,1,0,3.793,3.793l4.583-4.582,0,0,4.1-4.005-.037-.037A9.094,9.094,0,0,1,9.73,10.418ZM3.053,21.888A.894.894,0,1,1,3.946,21,.893.893,0,0,1,3.053,21.888Z"></path></g></g>
      </svg>
      ${settingsState.onoff ? '<div class="tooltiptext topmenutooltip">BetterSEQTA+ Settings</div>' : ""}
    </button>
  `);
  let ContentDiv = document.getElementById("content");
  ContentDiv!.append(SettingsButton.firstChild!);
}

function GetLightDarkModeString() {
  if (settingsState.DarkMode) {
    return "Switch to light theme";
  } else {
    return "Switch to dark theme";
  }
}

async function addDarkLightToggle() {
  const tooltipString = GetLightDarkModeString();
  const SUN_ICON_SVG = /* html */ `<defs><clipPath id="__lottie_element_80"><rect width="24" height="24" x="0" y="0"></rect></clipPath></defs><g clip-path="url(#__lottie_element_80)"><g style="display: block;" transform="matrix(1,0,0,1,12,12)" opacity="1"><g opacity="1" transform="matrix(1,0,0,1,0,0)"><path fill-opacity="1" d=" M0,-4 C-2.2100000381469727,-4 -4,-2.2100000381469727 -4,0 C-4,2.2100000381469727 -2.2100000381469727,4 0,4 C2.2100000381469727,4 4,2.2100000381469727 4,0 C4,-2.2100000381469727 2.2100000381469727,-4 0,-4z"></path></g></g><g style="display: block;" transform="matrix(1,0,0,1,12,12)" opacity="1"><g opacity="1" transform="matrix(1,0,0,1,0,0)"><path fill-opacity="1" d=" M0,6 C-3.309999942779541,6 -6,3.309999942779541 -6,0 C-6,-3.309999942779541 -3.309999942779541,-6 0,-6 C3.309999942779541,-6 6,-3.309999942779541 6,0 C6,3.309999942779541 3.309999942779541,6 0,6z M8,-3.309999942779541 C8,-3.309999942779541 8,-8 8,-8 C8,-8 3.309999942779541,-8 3.309999942779541,-8 C3.309999942779541,-8 0,-11.3100004196167 0,-11.3100004196167 C0,-11.3100004196167 -3.309999942779541,-8 -3.309999942779541,-8 C-3.309999942779541,-8 -8,-8 -8,-8 C-8,-8 -8,-3.309999942779541 -8,-3.309999942779541 C-8,-3.309999942779541 -11.3100004196167,0 -11.3100004196167,0 C-11.3100004196167,0 -8,3.309999942779541 -8,3.309999942779541 C-8,3.309999942779541 -8,8 -8,8 C-8,8 -3.309999942779541,8 -3.309999942779541,8 C-3.309999942779541,8 0,11.3100004196167 0,11.3100004196167 C0,11.3100004196167 3.309999942779541,8 3.309999942779541,8 C3.309999942779541,8 8,8 8,8 C8,8 8,3.309999942779541 8,3.309999942779541 C8,3.309999942779541 11.3100004196167,0 11.3100004196167,0 C11.3100004196167,0 8,-3.309999942779541 8,-3.309999942779541z"></path></g></g></g>`;
  const MOON_ICON_SVG = /* html */ `<defs><clipPath id="__lottie_element_263"><rect width="24" height="24" x="0" y="0"></rect></clipPath></defs><g clip-path="url(#__lottie_element_263)"><g style="display: block;" transform="matrix(1.5,0,0,1.5,7,12)" opacity="1"><g opacity="1" transform="matrix(1,0,0,1,0,0)"><path fill-opacity="1" d=" M0,-4 C-2.2100000381469727,-4 -1.2920000553131104,-2.2100000381469727 -1.2920000553131104,0 C-1.2920000553131104,2.2100000381469727 -2.2100000381469727,4 0,4 C2.2100000381469727,4 4,2.2100000381469727 4,0 C4,-2.2100000381469727 2.2100000381469727,-4 0,-4z"></path></g></g><g style="display: block;" transform="matrix(-1,0,0,-1,12,12)" opacity="1"><g opacity="1" transform="matrix(1,0,0,1,0,0)"><path fill-opacity="1" d=" M0,6 C-3.309999942779541,6 -6,3.309999942779541 -6,0 C-6,-3.309999942779541 -3.309999942779541,-6 0,-6 C3.309999942779541,-6 6,-3.309999942779541 6,0 C6,3.309999942779541 3.309999942779541,6 0,6z M8,-3.309999942779541 C8,-3.309999942779541 8,-8 8,-8 C8,-8 3.309999942779541,-8 3.309999942779541,-8 C3.309999942779541,-8 0,-11.3100004196167 0,-11.3100004196167 C0,-11.3100004196167 -3.309999942779541,-8 -3.309999942779541,-8 C-3.309999942779541,-8 -8,-8 -8,-8 C-8,-8 -8,-3.309999942779541 -8,-3.309999942779541 C-8,-3.309999942779541 -11.3100004196167,0 -11.3100004196167,0 C-11.3100004196167,0 -8,3.309999942779541 -8,3.309999942779541 C-8,3.309999942779541 -8,8 -8,8 C-8,8 -3.309999942779541,8 -3.309999942779541,8 C-3.309999942779541,8 0,11.3100004196167 0,11.3100004196167 C0,11.3100004196167 3.309999942779541,8 3.309999942779541,8 C3.309999942779541,8 8,8 8,8 C8,8 8,3.309999942779541 8,3.309999942779541 C8,3.309999942779541 11.3100004196167,0 11.3100004196167,0 C11.3100004196167,0 8,-3.309999942779541 8,-3.309999942779541z"></path></g></g></g>`;
  
    const initialSvgContent = settingsState.DarkMode ? SUN_ICON_SVG : MOON_ICON_SVG;

  const LightDarkModeButton = stringToHTML(/* html */ `
    <button class="addedButton DarkLightButton tooltip" id="LightDarkModeButton">
      <svg xmlns="http://www.w3.org/2000/svg">${initialSvgContent}</svg>
      <div class="tooltiptext topmenutooltip" id="darklighttooliptext">${tooltipString}</div>
    </button>
  `);

  let ContentDiv = document.getElementById("content");
  ContentDiv!.append(LightDarkModeButton.firstChild!);

  updateAllColors();

  const lightDarkModeButtonElement = document.getElementById("LightDarkModeButton")!;

  lightDarkModeButtonElement.addEventListener("click", async () => {
    const darklightText = document.getElementById("darklighttooliptext");

    if (
      settingsState.originalDarkMode != undefined &&
      settingsState.selectedTheme
    ) {
      darklightText!.innerText = "Locked by current theme";
      await delay(1000);
      darklightText!.innerText = GetLightDarkModeString();
      return;
    }

    if (!document.startViewTransition || !settingsState.animations || window.matchMedia("(prefers-reduced-motion: reduce)").matches) {
      settingsState.DarkMode = !settingsState.DarkMode;
      updateAllColors(); 
      
      const newSvgContent = settingsState.DarkMode ? SUN_ICON_SVG : MOON_ICON_SVG;
      const svgElement = lightDarkModeButtonElement.querySelector("svg");
      if (svgElement) svgElement.innerHTML = newSvgContent;
      darklightText!.innerText = GetLightDarkModeString();
      return;
    }

    settingsState.DarkMode = !settingsState.DarkMode;
    
    updateAllColors(); 
    
    const newSvgContent = settingsState.DarkMode ? SUN_ICON_SVG : MOON_ICON_SVG;
    const svgElement = lightDarkModeButtonElement.querySelector("svg");
    if (svgElement) svgElement.innerHTML = newSvgContent;
    
    darklightText!.innerText = GetLightDarkModeString();
  });
}

function customizeMenuToggle() {
  const menuToggle = document.getElementById("menuToggle");
  if (menuToggle) {
    menuToggle.innerHTML = "";
  }

  for (let i = 0; i < 3; i++) {
    const line = document.createElement("div");
    line.className = "hamburger-line";
    menuToggle!.appendChild(line);
  }
}