/**
 * Hermes Hub — Client-side Workspace Switcher & Context Manager
 * Garantit l'isolation stricte du state front-end entre univers
 */

(function () {
  let activeUniverse = "tt";
  const iframe = document.getElementById("workspace-iframe");
  const loader = document.getElementById("hub-loader");
  const activeTitle = document.getElementById("active-universe-name");
  const activeScope = document.getElementById("active-universe-scope");
  const activeTagline = document.getElementById("active-universe-tagline");

  // Accent mappings
  const ACCENT_MAP = {
    tt: "var(--accent-tt)",
    nyora: "var(--accent-nyora)",
    perso: "var(--accent-perso)",
    nabil: "var(--accent-nabil)"
  };

  const ACCENT_GLOW_MAP = {
    tt: "var(--accent-tt-glow)",
    nyora: "var(--accent-nyora-glow)",
    perso: "var(--accent-perso-glow)",
    nabil: "var(--accent-nabil-glow)"
  };

  function applyThemeTokens(universeId) {
    const accent = ACCENT_MAP[universeId] || "var(--accent-tt)";
    const glow = ACCENT_GLOW_MAP[universeId] || "var(--accent-tt-glow)";
    document.documentElement.style.setProperty("--hub-accent-current", accent);
    document.documentElement.style.setProperty("--hub-accent-glow-current", glow);
  }

  function switchUniverse(universeId) {
    if (!universeId || (activeUniverse === universeId && iframe.src !== "about:blank")) {
      return;
    }

    const btn = document.querySelector(`.hub-universe-btn[data-universe="${universeId}"]`);
    if (!btn) return;

    // 1. ISOLATION TOTALE DU STATE CLIENT
    // Forcer le déchargement de l'iframe précédente pour éliminer tout résidu JS en mémoire
    loader.classList.remove("hidden");
    iframe.src = "about:blank";

    // 2. Mettre à jour l'univers actif
    activeUniverse = universeId;

    // 3. Mettre à jour la classe active sur la sidebar
    document.querySelectorAll(".hub-universe-btn").forEach((el) => el.classList.remove("active"));
    btn.classList.add("active");

    // 4. Appliquer les Design Tokens dynamiques
    applyThemeTokens(universeId);

    // 5. Mettre à jour les informations du header
    const name = btn.dataset.name || universeId.toUpperCase();
    const scope = btn.dataset.scope || universeId;
    const tagline = btn.dataset.tagline || "";

    if (activeTitle) activeTitle.textContent = name;
    if (activeScope) activeScope.textContent = `Scope: ${scope}`;
    if (activeTagline) activeTagline.textContent = tagline;

    // 6. Charger le nouvel univers via le proxy dédié
    const targetProxyUrl = `/u/${universeId}/`;
    setTimeout(() => {
      iframe.src = targetProxyUrl;
    }, 50);
  }

  // Écouter le chargement de l'iframe
  if (iframe) {
    iframe.addEventListener("load", () => {
      if (iframe.src !== "about:blank") {
        loader.classList.add("hidden");
      }
    });
  }

  // Polling de l'état de santé des univers
  async function refreshHealthStatus() {
    try {
      const res = await fetch("/api/universes");
      if (!res.ok) return;
      const data = await res.json();

      data.forEach((u) => {
        const dot = document.getElementById(`status-dot-${u.id}`);
        if (dot) {
          if (u.health && u.health.status === "online") {
            dot.className = "hub-status-dot online";
            dot.title = `En ligne (${u.health.latency_ms}ms)`;
          } else {
            dot.className = "hub-status-dot";
            dot.title = `Hors ligne ou dégradé (${u.health.status})`;
          }
        }
      });
    } catch (e) {
      console.warn("Health check error:", e);
    }
  }

  // Modal Personnalité
  const personaModal = document.getElementById("persona-modal");
  const cloneModal = document.getElementById("clone-modal");

  async function openPersonaModal() {
    try {
      const res = await fetch(`/api/universes/${activeUniverse}/persona`);
      if (!res.ok) throw new Error("Erreur de chargement de la persona");
      const persona = await res.json();

      document.getElementById("persona-modal-title").textContent = `Personnalité — ${activeUniverse.toUpperCase()}`;
      document.getElementById("persona-name").value = persona.name || "";
      document.getElementById("persona-tagline").value = persona.tagline || "";
      document.getElementById("persona-tone").value = persona.tone || "";
      document.getElementById("persona-style").value = persona.style || "";
      document.getElementById("persona-principles").value = (persona.principles || []).join("\n");
      document.getElementById("persona-prompt").value = persona.system_prompt || "";

      personaModal.classList.add("open");
    } catch (e) {
      alert("Impossible de charger la personnalité : " + e.message);
    }
  }

  async function savePersona() {
    const principlesText = document.getElementById("persona-principles").value;
    const payload = {
      universe_id: activeUniverse,
      name: document.getElementById("persona-name").value,
      tagline: document.getElementById("persona-tagline").value,
      tone: document.getElementById("persona-tone").value,
      style: document.getElementById("persona-style").value,
      principles: principlesText.split("\n").map(s => s.trim()).filter(Boolean),
      system_prompt: document.getElementById("persona-prompt").value,
      version: 1
    };

    try {
      const res = await fetch(`/api/universes/${activeUniverse}/persona`, {
        method: "PUT",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify(payload)
      });
      if (!res.ok) throw new Error("Erreur de sauvegarde");
      personaModal.classList.remove("open");
    } catch (e) {
      alert("Erreur lors de la sauvegarde : " + e.message);
    }
  }

  function openCloneModal() {
    document.getElementById("clone-source-name").textContent = activeUniverse.toUpperCase();
    document.getElementById("clone-name").value = `Clone ${activeUniverse.toUpperCase()} - Test`;
    cloneModal.classList.add("open");
  }

  async function submitClone() {
    const cloneName = document.getElementById("clone-name").value;
    if (!cloneName) return alert("Veuillez saisir un nom pour le clone.");

    try {
      const res = await fetch(`/api/universes/${activeUniverse}/clone`, {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({ clone_name: cloneName })
      });
      if (!res.ok) throw new Error("Erreur lors du clonage");
      const data = await res.json();
      alert(`Profil cloné avec succès : ${data.clone.clone_id}`);
      cloneModal.classList.remove("open");
    } catch (e) {
      alert("Erreur de clonage : " + e.message);
    }
  }

  // Setup Event Listeners
  document.addEventListener("DOMContentLoaded", () => {
    // Boutons de changement d'univers
    document.querySelectorAll(".hub-universe-btn").forEach((btn) => {
      btn.addEventListener("click", () => {
        const uId = btn.dataset.universe;
        switchUniverse(uId);
      });
    });

    // Outils Footer
    document.getElementById("btn-edit-persona")?.addEventListener("click", openPersonaModal);
    document.getElementById("btn-clone-universe")?.addEventListener("click", openCloneModal);
    document.getElementById("btn-save-persona")?.addEventListener("click", savePersona);
    document.getElementById("btn-submit-clone")?.addEventListener("click", submitClone);

    // Boutons fermer modales
    document.querySelectorAll(".hub-modal-close").forEach((btn) => {
      btn.addEventListener("click", () => {
        personaModal.classList.remove("open");
        cloneModal.classList.remove("open");
      });
    });

    // Démarrage : activer le premier univers (TT)
    switchUniverse("tt");

    // Lancer la vérification de santé
    refreshHealthStatus();
    setInterval(refreshHealthStatus, 15000);
  });
})();