// static/js/09-profile.js
"use strict";
window.Glow = window.Glow || {};

Glow.escapeHtml = value =>
  String(value ?? "")
    .replaceAll("&", "&")
    .replaceAll("<", "&lt;")
    .replaceAll(">", "&gt;")
    .replaceAll('"', "&quot;");

Glow.renderProfileBody = profile => {
  const wrap = document.createElement("div");
  wrap.className = "profile-rendered";
  const content = String(profile?.bio_html || "").trim();
  if (!content) {
    const empty = document.createElement("div");
    empty.className = "profile-empty";
    empty.textContent = "No profile bio yet.";
    return empty;
  }
  wrap.innerHTML = content;
  return wrap;
};

Glow.openProfile = async username => {
  Glow.state.activeView = "profile";
  Glow.state.activeProfile = null;
  Glow.updateViewUI();
  const box = Glow.els.profileBox;
  box.setAttribute("aria-busy", "true");
  box.replaceChildren();
  try {
    const data = await Glow.apiGetPublicProfile(username);
    Glow.state.activeProfile = data.profile;
    Glow.renderProfileView(false);
  } catch (error) {
    box.replaceChildren();
    const state = document.createElement("div");
    state.className = "empty-state";
    const card = document.createElement("div");
    card.className = "empty-card";
    card.textContent = error.message || "Could not load profile.";
    state.append(card);
    box.append(state);
    Glow.showToast(error.message || "Could not load profile.", "error");
  } finally {
    box.setAttribute("aria-busy", "false");
  }
};

Glow.openMyProfile = async (edit = false) => {
  if (!Glow.state.currentUser) {
    Glow.showToast("Sign in to view your profile.", "error");
    return;
  }
  Glow.state.activeView = "profile";
  Glow.state.activeProfile = null;
  Glow.updateViewUI();
  const box = Glow.els.profileBox;
  box.setAttribute("aria-busy", "true");
  box.replaceChildren();
  try {
    const data = await Glow.apiGetMyProfile();
    Glow.state.activeProfile = data.profile;
    Glow.renderProfileView(edit);
  } catch (error) {
    Glow.showToast(error.message || "Could not load your profile.", "error");
  } finally {
    box.setAttribute("aria-busy", "false");
  }
};

Glow.uploadBannerForProfile = async file => {
  const result = await Glow.uploadAttachment(file);
  return result?.attachment || null;
};

Glow.renderProfileView = (editing = false) => {
  const box = Glow.els.profileBox;
  const profile = Glow.state.activeProfile;
  box.replaceChildren();

  if (!profile) {
    const state = document.createElement("div");
    state.className = "empty-state";
    const card = document.createElement("div");
    card.className = "empty-card";
    card.textContent = "Profile not found.";
    state.append(card);
    box.append(state);
    return;
  }

  box.style.background =
    profile.profile_background_color || "transparent";

  const card = document.createElement("div");
  card.className = "profile-card";

  const banner = document.createElement("div");
  banner.className = "profile-banner";
  if (profile.profile_banner_color) {
    banner.style.background =
      `linear-gradient(135deg, ${profile.profile_banner_color}, transparent 72%), ${profile.profile_banner_color}`;
  }
  if (profile.banner_image_url) {
    banner.style.backgroundImage =
      `linear-gradient(135deg, rgba(0,0,0,0.18), rgba(0,0,0,0.04)), url("${profile.banner_image_url}")`;
    banner.style.backgroundSize = "cover";
    banner.style.backgroundPosition = "center";
  }

  const content = document.createElement("div");
  content.className = "profile-content";

  const header = document.createElement("div");
  header.className = "profile-header";

  const avatar = document.createElement("div");
  avatar.className = "profile-avatar";
  avatar.textContent = (profile.display_name || profile.username || "?")
    .slice(0, 1)
    .toUpperCase();

  const actions = document.createElement("div");
  actions.className = "profile-actions";
  if (profile.is_self) {
    const editButton = document.createElement("button");
    editButton.className = "button";
    editButton.type = "button";
    editButton.textContent = editing ? "View profile" : "Edit profile";
    editButton.addEventListener("click", () => {
      Glow.renderProfileView(!editing);
    });

    const settingsButton = document.createElement("button");
    settingsButton.className = "button secondary";
    settingsButton.type = "button";
    settingsButton.textContent = "Settings";
    settingsButton.addEventListener("click", () => {
      Glow.openSettings?.();
    });
    actions.append(editButton, settingsButton);
  }
  header.append(avatar, actions);

  const name = document.createElement("div");
  name.className = "profile-name";
  name.textContent = profile.display_name || profile.username;
  name.style.color = Glow.resolveUserNameColor({
    role: profile.role,
    name_color: profile.name_color
  });

  const handle = document.createElement("div");
  handle.className = "profile-handle";
  handle.textContent = `@${profile.username}`;
  handle.style.color = Glow.resolveUserNameColor({
    role: profile.role,
    name_color: profile.name_color
  });

  const badges = document.createElement("div");
  badges.className = "profile-badges";

  const roleBadge = document.createElement("span");
  roleBadge.className = "profile-badge";
  roleBadge.textContent = profile.role;

  const statusBadge = document.createElement("span");
  statusBadge.className = "profile-badge";
  statusBadge.textContent = profile.status;

  const presenceBadge = document.createElement("span");
  presenceBadge.className = "profile-badge";
  presenceBadge.textContent = profile.presence_mode || "online";

  badges.append(roleBadge, statusBadge, presenceBadge);

  const grid = document.createElement("div");
  grid.className = "profile-grid";

  if (editing && profile.is_self) {
    grid.append(Glow.buildProfileEditor(profile));
  } else {
    const bioSection = document.createElement("section");
    bioSection.className = "profile-section";
    const bioTitle = document.createElement("h3");
    bioTitle.textContent = "Bio";
    bioSection.append(bioTitle, Glow.renderProfileBody(profile));

    const metaSection = document.createElement("section");
    metaSection.className = "profile-section";
    const metaTitle = document.createElement("h3");
    metaTitle.textContent = "Profile";
    const metaList = document.createElement("dl");
    metaList.className = "profile-meta-list";

    const addMeta = (label, value) => {
      const dt = document.createElement("dt");
      dt.textContent = label;
      const dd = document.createElement("dd");
      dd.textContent = value || "—";
      metaList.append(dt, dd);
    };

    addMeta("Display name", profile.display_name || profile.username);
    addMeta("Status message", profile.status_message || "");
    addMeta("Presence mode", profile.presence_mode || "online");
    addMeta("Website", profile.website || "");
    addMeta("Location", profile.location || "");
    addMeta(
      "Joined",
      profile.created_at ? new Date(profile.created_at).toLocaleDateString() : ""
    );
    addMeta(
      "Last active",
      profile.last_active_at ? new Date(profile.last_active_at).toLocaleString() : ""
    );
    addMeta("Bio mode", profile.bio_mode || "txt");
    addMeta("Name color", profile.name_color || "role default");

    metaSection.append(metaTitle, metaList);
    grid.append(bioSection, metaSection);
  }

  content.append(header, name, handle);

  if (profile.status_message) {
    const statusMessage = document.createElement("div");
    statusMessage.className = "profile-status-message";
    statusMessage.textContent = profile.status_message;
    content.append(statusMessage);
  }

  content.append(badges, grid);
  card.append(banner, content);
  box.append(card);
};

Glow.buildProfileEditor = profile => {
  const section = document.createElement("section");
  section.className = "profile-section";
  const title = document.createElement("h3");
  title.textContent = "Edit profile";

  const editor = document.createElement("div");
  editor.className = "profile-editor";

  const displayName = document.createElement("input");
  displayName.className = "field";
  displayName.type = "text";
  displayName.maxLength = 80;
  displayName.placeholder = "Display name";
  displayName.value = profile.display_name || "";

  const statusMessage = document.createElement("input");
  statusMessage.className = "field";
  statusMessage.type = "text";
  statusMessage.maxLength = 160;
  statusMessage.placeholder = "Status message";
  statusMessage.value = profile.status_message || "";

  const website = document.createElement("input");
  website.className = "field";
  website.type = "url";
  website.maxLength = 300;
  website.placeholder = "Website URL";
  website.value = profile.website || "";

  const location = document.createElement("input");
  location.className = "field";
  location.type = "text";
  location.maxLength = 120;
  location.placeholder = "Location";
  location.value = profile.location || "";

  const bannerInput = document.createElement("input");
  bannerInput.className = "field";
  bannerInput.type = "file";
  bannerInput.accept = ".png,.jpg,.jpeg,.gif,.webp";

  const modeRow = document.createElement("div");
  modeRow.className = "profile-mode-row";
  let selectedMode = profile.bio_mode || "txt";

  const body = document.createElement("textarea");
  body.className = "field";
  body.maxLength = 5000;
  body.placeholder = "Tell people about yourself";
  body.value = profile.bio || "";

  for (const mode of ["txt", "md", "html"]) {
    const button = document.createElement("button");
    button.className = `mode-pill${selectedMode === mode ? " active" : ""}`;
    button.type = "button";
    button.textContent = mode.toUpperCase();
    button.addEventListener("click", () => {
      selectedMode = mode;
      for (const el of modeRow.querySelectorAll(".mode-pill")) {
        el.classList.toggle("active", el.textContent.toLowerCase() === mode);
      }
    });
    modeRow.append(button);
  }

  const help = document.createElement("p");
  help.className = "header-subtitle";
  help.textContent =
    "HTML is sanitized on save/display. Scripts, event handlers, and unsafe URLs are removed.";

  const actions = document.createElement("div");
  actions.className = "settings-actions";

  const save = document.createElement("button");
  save.className = "button";
  save.type = "button";
  save.textContent = "Save profile";
  save.addEventListener("click", async () => {
    try {
      let bannerAttachmentId = profile.banner_attachment_id || null;
      const file = bannerInput.files?.[0];
      if (file) {
        const uploaded = await Glow.uploadBannerForProfile(file);
        bannerAttachmentId = uploaded?.id || bannerAttachmentId;
      }

      const data = await Glow.apiUpdateMyProfile({
        display_name: displayName.value,
        status_message: statusMessage.value,
        website: website.value,
        location: location.value,
        bio: body.value,
        bio_mode: selectedMode,
        banner_attachment_id: bannerAttachmentId
      });

      Glow.state.activeProfile = {
        ...data.profile,
        name_color: Glow.state.settings?.name_color || profile.name_color || null,
        profile_background_color: Glow.state.settings?.profile_background_color || null,
        profile_banner_color: Glow.state.settings?.profile_banner_color || null
      };
      Glow.showToast("Profile updated.");
      Glow.renderProfileView(false);
    } catch (error) {
      Glow.showToast(error.message || "Could not update profile.", "error");
    }
  });

  const preview = document.createElement("button");
  preview.className = "button secondary";
  preview.type = "button";
  preview.textContent = "Preview";
  preview.addEventListener("click", async () => {
    try {
      let bannerAttachmentId = profile.banner_attachment_id || null;
      const file = bannerInput.files?.[0];
      if (file) {
        const uploaded = await Glow.uploadBannerForProfile(file);
        bannerAttachmentId = uploaded?.id || bannerAttachmentId;
      }

      const data = await Glow.apiUpdateMyProfile({
        display_name: displayName.value,
        status_message: statusMessage.value,
        website: website.value,
        location: location.value,
        bio: body.value,
        bio_mode: selectedMode,
        banner_attachment_id: bannerAttachmentId
      });

      Glow.state.activeProfile = {
        ...data.profile,
        name_color: Glow.state.settings?.name_color || profile.name_color || null,
        profile_background_color: Glow.state.settings?.profile_background_color || null,
        profile_banner_color: Glow.state.settings?.profile_banner_color || null
      };
      Glow.renderProfileView(false);
    } catch (error) {
      Glow.showToast(error.message || "Could not preview profile.", "error");
    }
  });

  actions.append(save, preview);
  editor.append(
    displayName,
    statusMessage,
    website,
    location,
    bannerInput,
    modeRow,
    help,
    body,
    actions
  );
  section.append(title, editor);
  return section;
};