// overview.js — Dashboard: Quick Actions, Modelle & Recent Jobs

import { api } from "../core/api.js";
import { $, esc, icon, toast } from "../core/ui.js";

let S = null;   // letzter Status
let J = [];     // letzte Job-Liste
let SYS = null;

const RUNNING = new Set(["running", "ready", "loading", "starting"]);

function counts() {
  const models = S?.models || [];
  return {
    total:   models.length,
    running: models.filter(m => RUNNING.has(m.state)).length,
  };
}

function renderHero() {
  $("#hero").innerHTML = `<div class="hero">
    <div>
      <div class="eyebrow">Dashboard</div>
      <h1>Mission Control</h1>
      <p>Steuerzentrale für deinen lokalen llama-swap-Stack. Hier verwaltest du Modelle, Downloads und Server-Wartung.</p>
    </div>
  </div>`;
}

async function triggerAction(action) {
  if (action === "restart_llama") {
    toast("Neustart ausgelöst...");
    try {
      await api("/api/service/llama-swap/restart", { method: "POST" });
      toast("llama-swap wird neugestartet.");
    } catch(e) {
      toast("Fehler: " + e.message, true);
    }
  } else if (action === "update_mc") {
    toast("Update gestartet! Siehe Aktivitäten.");
    try {
      await api("/api/update", { method: "POST" });
      document.querySelector('.nav-item[data-view="activity"]').click();
    } catch(e) {
      toast("Fehler: " + e.message, true);
    }
  }
}

// Global hook für onclick
window.triggerAction = triggerAction;

function renderQuickActions() {
  let actionsHtml = "";
  
  if (SYS) {
    const ram_percent = SYS.ram.percent || 0;
    // Wenn RAM über 90% ist, zeige Warnung. 
    // Wir nehmen 90 für Produktion, aber für den Test könnte es angepasst werden.
    if (ram_percent >= 90) {
      actionsHtml += `
        <div class="card" style="background:var(--red-dim); border:1px solid var(--red); grid-column:1/-1;">
          <div class="flex justify-between items-center">
            <div>
              <h3 style="color:var(--red); margin:0;">⚠️ Arbeitsspeicher kritisch (${ram_percent.toFixed(0)}%)</h3>
              <p style="color:var(--red); margin-top:4px;">Der RAM/VRAM ist fast voll. Dies kann zu Systeminstabilität führen.</p>
            </div>
            <button class="primary warn" onclick="window.triggerAction('restart_llama')">VRAM leeren (Neustart)</button>
          </div>
        </div>
      `;
    }
    
    // Simulierter Update-Check (Idealerweise vom Backend, hier als permanenter Button wenn man manuell checken will, 
    // oder wir blenden ihn ein wenn ein lokales flag gesetzt ist. Wir zeigen ihn hier als Feature-Highlight)
    // Da wir aktuell keinen echten Git-Check im Backend haben, zeigen wir einen "Update Prüfen" Button in den QuickActions.
  }

  // 3 Standard Kacheln (Cookbook, Server-Status, Aktivität/Guides)
  $("#ov-quick").innerHTML = actionsHtml + `
    <button class="card-btn" onclick="document.querySelector('.nav-item[data-view=\\'cookbook\\']').click()">
      <div class="flex justify-between items-center">
        <h3>Modell finden</h3>
        <span class="text-act">${icon("book")}</span>
      </div>
      <p>Durchsuche HuggingFace nach neuen Modellen im Cookbook.</p>
    </button>
    
    <button class="card-btn" onclick="window.triggerAction('update_mc')">
      <div class="flex justify-between items-center">
        <h3>Container Updates</h3>
        <span class="text-act">${icon("download")}</span>
      </div>
      <p>Prüfe auf Updates für Mission-Control und Llama.cpp.</p>
    </button>

    <button class="card-btn" onclick="document.querySelector('.nav-item[data-view=\\'server\\']').click()">
      <div class="flex justify-between items-center">
        <h3>Wartung</h3>
        <span class="text-act">${icon("server")}</span>
      </div>
      <p>Server neustarten, VRAM leeren oder OS aktualisieren.</p>
    </button>
  `;
}

function modelRow(m) {
  const on = RUNNING.has(m.state);
  const dot = m.state === "loading" || m.state === "starting" ? "load" : (on || m.state === "bereit") ? "on" : "";
  const state = on ? (m.state === "loading" ? "lädt…" : "geladen") : "bereit";
  
  let caps = "";
  if (m.meta && m.meta.caps) {
      caps = m.meta.caps.map(c => {
         if (c === "Code") return `<span title="Code" style="color:var(--blue);font-size:0.9em;margin-left:6px">{ }</span>`;
         if (c === "Bild") return `<span title="Vision" style="color:var(--purple);font-size:0.9em;margin-left:6px">👁</span>`;
         return "";
      }).join("");
  }

  const filename = m.meta?.filename ? `<div class="li-sub" style="font-family:var(--mono); color:var(--mut);">${esc(m.meta.filename)}</div>` : '';
  
  return `<div class="li">
    <span class="li-dot ${dot}"></span>
    <div class="li-main">
      <div class="li-id" style="font-weight:500">${esc(m.name)}${caps}</div>
      ${filename}
    </div>
    <div class="li-right">
      <div class="li-time">${state}</div>
    </div>
  </div>`;
}

function renderModels() {
  const models = S?.models || [];
  $("#ov-models").innerHTML = `
    <div class="card-h"><h3>Aktuelle Modelle im Stack</h3><span class="meta">${models.length || ""}</span></div>
    ${models.length
      ? `<div class="list">${models.map(modelRow).join("")}</div>`
      : `<div class="empty-c"><div class="e-t">Keine Modelle konfiguriert</div>
           <div class="e-s">Hol dir unter „Cookbook“ eins von HuggingFace.</div></div>`}`;
}

function renderRecentJobs() {
  const latest = J.slice(0, 4);
  
  const statusBadge = (s) => {
    if (s === "done") return '<span class="badge b-run" style="font-size:10px">fertig</span>';
    if (s === "failed") return '<span class="badge b-err" style="font-size:10px">fehler</span>';
    return '<span class="badge b-load" style="font-size:10px">lädt…</span>';
  };

  $("#ov-recent-jobs").innerHTML = `
    <div class="card-h"><h3>Letzte Aktivitäten</h3><span class="meta" style="cursor:pointer" onclick="document.querySelector('.nav-item[data-view=\\'activity\\']').click()">Alle ansehen →</span></div>
    ${latest.length
      ? `<div class="list">
          ${latest.map(j => `
            <div class="li">
              <div class="li-main">
                <div class="li-id text-sm">${esc(j.label)}</div>
              </div>
              <div class="li-right">${statusBadge(j.state)}</div>
            </div>
          `).join("")}
         </div>`
      : `<div class="empty-c"><div class="e-t">Keine Aktivitäten</div><div class="e-s">Alles läuft ruhig.</div></div>`
    }
  `;
}

function renderAll() { 
  renderHero(); 
  renderQuickActions(); 
  renderModels(); 
  renderRecentJobs(); 
}

function mount() { renderAll(); }
function onStatus(s) { S = s; renderModels(); }
function onJobs(jobs) { J = jobs || []; renderRecentJobs(); }
function onSystem(sys) { SYS = sys; }

export default { id: "overview", mount, onStatus, onJobs, onSystem };