"use client";

import { useParams, notFound } from "next/navigation";
import Link from "next/link";
import { useState, useEffect } from "react";
import { Card, Badge } from "@/shared/components";
import ProviderIcon from "@/shared/components/ProviderIcon";
import { MEDIA_PROVIDER_KINDS, AI_PROVIDERS, getProviderAlias } from "@/shared/constants/providers";
import { getModelsByProviderId } from "@/shared/constants/models";
import { useCopyToClipboard } from "@/shared/hooks/useCopyToClipboard";
import ConnectionsCard from "@/app/(dashboard)/dashboard/providers/components/ConnectionsCard";
import ModelsCard from "@/app/(dashboard)/dashboard/providers/components/ModelsCard";
import { TTS_PROVIDER_CONFIG } from "@/shared/constants/ttsProviders";

// Shared row layout — defined outside components to avoid re-mount on re-render
function Row({ label, children }) {
  return (
    <div className="flex items-center gap-3">
      <span className="text-xs text-text-muted w-20 shrink-0">{label}</span>
      <div className="flex-1">{children}</div>
    </div>
  );
}

const DEFAULT_RESPONSE_EXAMPLE = `{
  "object": "list",
  "data": [{
    "object": "embedding",
    "index": 0,
    "embedding": [0.002301, -0.019212, 0.004815, -0.031249, ...]
  }],
  "model": "...",
  "usage": { "prompt_tokens": 9, "total_tokens": 9 }
}`;

// EmbeddingExampleCard
function EmbeddingExampleCard({ providerId }) {
  const providerAlias = getProviderAlias(providerId);
  const embeddingModels = getModelsByProviderId(providerId).filter((m) => m.type === "embedding");

  const [selectedModel, setSelectedModel] = useState(embeddingModels[0]?.id ?? "");
  const [input, setInput] = useState("The quick brown fox jumps over the lazy dog");
  const [apiKey, setApiKey] = useState("");
  const [useTunnel, setUseTunnel] = useState(false);
  const [localEndpoint, setLocalEndpoint] = useState("");
  const [tunnelEndpoint, setTunnelEndpoint] = useState("");
  const [result, setResult] = useState(null);
  const [running, setRunning] = useState(false);
  const [error, setError] = useState("");
  const { copied: copiedCurl, copy: copyCurl } = useCopyToClipboard();
  const { copied: copiedRes, copy: copyRes } = useCopyToClipboard();

  useEffect(() => {
    setLocalEndpoint(window.location.origin);
    fetch("/api/keys")
      .then((r) => r.json())
      .then((d) => { setApiKey((d.keys || []).find((k) => k.isActive !== false)?.key || ""); })
      .catch(() => {});
    fetch("/api/tunnel/status")
      .then((r) => r.json())
      .then((d) => { if (d.publicUrl) setTunnelEndpoint(d.publicUrl); })
      .catch(() => {});
  }, []);

  const endpoint = useTunnel ? tunnelEndpoint : localEndpoint;
  const modelFull = selectedModel ? `${providerAlias}/${selectedModel}` : "";

  const curlSnippet = `curl -X POST ${endpoint}/v1/embeddings \\
  -H "Content-Type: application/json" \\
  -H "Authorization: Bearer ${apiKey || "YOUR_KEY"}" \\
  -d '{"model": "${modelFull}", "input": "${input}"}'`;

  const handleRun = async () => {
    if (!input.trim() || !modelFull) return;
    setRunning(true);
    setError("");
    setResult(null);
    const start = Date.now();
    try {
      const headers = { "Content-Type": "application/json" };
      if (apiKey) headers["Authorization"] = `Bearer ${apiKey}`;
      const res = await fetch("/api/v1/embeddings", {
        method: "POST",
        headers,
        body: JSON.stringify({ model: modelFull, input: input.trim() }),
      });
      const latencyMs = Date.now() - start;
      const data = await res.json();
      if (!res.ok) { setError(data?.error?.message || data?.error || `HTTP ${res.status}`); return; }
      setResult({ data, latencyMs });
    } catch (e) {
      setError(e.message || "Network error");
    } finally {
      setRunning(false);
    }
  };

  // Compact embedding array: first 4 values + count
  const formatResultJson = (data) => {
    if (!data) return DEFAULT_RESPONSE_EXAMPLE;
    const clone = JSON.parse(JSON.stringify(data));
    (clone.data || []).forEach((item) => {
      if (Array.isArray(item.embedding) && item.embedding.length > 4) {
        item.embedding = [...item.embedding.slice(0, 4).map((v) => parseFloat(v.toFixed(6))), `... (${item.embedding.length} dims)`];
      }
    });
    return JSON.stringify(clone, null, 2);
  };

  const resultJson = result ? JSON.stringify(result.data, null, 2) : "";

  return (
    <Card>
      <h2 className="text-lg font-semibold mb-4">Example</h2>

      <div className="flex flex-col gap-2.5">
        {/* Model */}
        <Row label="Model">
          <select
            value={selectedModel}
            onChange={(e) => setSelectedModel(e.target.value)}
            className="w-full px-3 py-1.5 text-sm border border-border rounded-lg bg-background focus:outline-none focus:border-primary"
          >
            {embeddingModels.map((m) => (
              <option key={m.id} value={m.id}>{m.name || m.id}</option>
            ))}
          </select>
        </Row>

        {/* Endpoint */}
        <Row label="Endpoint">
          <div className="flex items-center gap-2">
            <input
              value={endpoint}
              onChange={(e) => useTunnel ? setTunnelEndpoint(e.target.value) : setLocalEndpoint(e.target.value)}
              className="flex-1 px-3 py-1.5 text-sm border border-border rounded-lg bg-background focus:outline-none focus:border-primary font-mono"
              placeholder="http://localhost:3000"
            />
            {/* Tunnel toggle — only show if tunnel URL is available */}
            {tunnelEndpoint && (
              <button
                onClick={() => setUseTunnel((v) => !v)}
                title={useTunnel ? "Using tunnel" : "Using local"}
                className={`flex items-center gap-1 text-xs px-2 py-1.5 rounded-lg border shrink-0 transition-colors ${
                  useTunnel ? "border-primary/40 bg-primary/10 text-primary" : "border-border text-text-muted hover:text-primary"
                }`}
              >
                <span className="material-symbols-outlined text-[14px]">wifi_tethering</span>
                Tunnel
              </button>
            )}
          </div>
        </Row>

        {/* API Key */}
        <Row label="API Key">
          <input
            type="password"
            value={apiKey}
            onChange={(e) => setApiKey(e.target.value)}
            placeholder="sk-..."
            className="w-full px-3 py-1.5 text-sm border border-border rounded-lg bg-background focus:outline-none focus:border-primary font-mono"
          />
        </Row>

        {/* Input */}
        <Row label="Input">
          <div className="relative">
            <input
              value={input}
              onChange={(e) => setInput(e.target.value)}
              className="w-full px-3 py-1.5 pr-7 text-sm border border-border rounded-lg bg-background focus:outline-none focus:border-primary"
            />
            {input && (
              <button
                type="button"
                onClick={() => setInput("")}
                className="absolute right-2 top-1/2 -translate-y-1/2 text-text-muted hover:text-primary transition-colors"
              >
                <span className="material-symbols-outlined text-[14px]">close</span>
              </button>
            )}
          </div>
        </Row>

        {/* Curl + Run */}
        <div className="mt-1">
          <div className="flex items-center justify-between mb-1.5">
            <span className="text-xs font-semibold text-text-muted uppercase tracking-wider">Request</span>
            <div className="flex items-center gap-2">
              <button
                onClick={() => copyCurl(curlSnippet)}
                className="flex items-center gap-1 text-xs text-text-muted hover:text-primary transition-colors"
              >
                <span className="material-symbols-outlined text-[14px]">{copiedCurl ? "check" : "content_copy"}</span>
                {copiedCurl ? "Copied" : "Copy"}
              </button>
              <button
                onClick={handleRun}
                disabled={running || !input.trim() || !modelFull}
                className="flex items-center gap-1.5 px-3 py-1 rounded-lg bg-primary text-white text-xs font-medium hover:bg-primary/90 transition-colors disabled:opacity-50 disabled:cursor-not-allowed"
              >
                <span className="material-symbols-outlined text-[14px]" style={running ? { animation: "spin 1s linear infinite" } : undefined}>
                  {running ? "progress_activity" : "play_arrow"}
                </span>
                {running ? "Running..." : "Run"}
              </button>
            </div>
          </div>
          <pre className="bg-sidebar rounded-lg px-3 py-2.5 text-xs font-mono text-text-main overflow-x-auto whitespace-pre">{curlSnippet}</pre>
        </div>

        {/* Error */}
        {error && <p className="text-xs text-red-500 break-words">{error}</p>}

        {/* Response — default example or real result */}
        <div>
          <div className="flex items-center justify-between mb-1.5">
            <span className="text-xs font-semibold text-text-muted uppercase tracking-wider">
              Response {result && <span className="font-normal normal-case">&#9889; {result.latencyMs}ms</span>}
            </span>
            {result && (
              <button
                onClick={() => copyRes(resultJson)}
                className="flex items-center gap-1 text-xs text-text-muted hover:text-primary transition-colors"
              >
                <span className="material-symbols-outlined text-[14px]">{copiedRes ? "check" : "content_copy"}</span>
                {copiedRes ? "Copied" : "Copy"}
              </button>
            )}
          </div>
          <pre className="bg-sidebar rounded-lg px-3 py-2.5 text-xs font-mono text-text-main overflow-x-auto whitespace-pre opacity-70">
            {formatResultJson(result?.data)}
          </pre>
        </div>
      </div>
    </Card>
  );
}

// ─── TTS Example Card ────────────────────────────────────────────────────────
function TtsExampleCard({ providerId }) {
  const providerAlias = getProviderAlias(providerId);
  const config = TTS_PROVIDER_CONFIG[providerId] || TTS_PROVIDER_CONFIG["edge-tts"];

  // Voice state
  const [selectedVoice, setSelectedVoice]     = useState("");
  const [selectedVoiceName, setSelectedVoiceName] = useState("");
  const [voiceId, setVoiceId]               = useState(""); // editable voice id (elevenlabs)
  // Voices shown below Voice row after language selected
  const [countryVoices, setCountryVoices]     = useState([]);
  const [selectedLang, setSelectedLang]       = useState("");
  const [selectedModel, setSelectedModel]     = useState(() => {
    if (config.hasModelSelector && config.modelKey) {
      const models = getModelsByProviderId(config.modelKey);
      return models?.[0]?.id || "";
    }
    return "";
  });

  // Form state
  const [input, setInput]               = useState("Hello, this is a text to speech test.");
  const [apiKey, setApiKey]             = useState("");
  const [useTunnel, setUseTunnel]       = useState(false);
  const [localEndpoint, setLocalEndpoint]   = useState("");
  const [tunnelEndpoint, setTunnelEndpoint] = useState("");
  const [responseFormat, setResponseFormat] = useState("mp3"); // mp3 | json
  const [audioUrl, setAudioUrl]         = useState("");
  const [jsonResponse, setJsonResponse] = useState(null); // Store JSON response
  const [running, setRunning]           = useState(false);
  const [error, setError]               = useState("");
  const [latency, setLatency]           = useState(null);
  const { copied: copiedCurl, copy: copyCurl } = useCopyToClipboard();

  // Country picker modal state
  const [modalOpen, setModalOpen]           = useState(false);
  const [languages, setLanguages]           = useState([]);
  const [modalLoading, setModalLoading]     = useState(false);
  const [modalSearch, setModalSearch]       = useState("");
  const [modalError, setModalError]         = useState("");
  const [byLang, setByLang]                 = useState({});

  useEffect(() => {
    setLocalEndpoint(window.location.origin);
    fetch("/api/keys")
      .then((r) => r.json())
      .then((d) => { setApiKey((d.keys || []).find((k) => k.isActive !== false)?.key || ""); })
      .catch(() => {});
    fetch("/api/tunnel/status")
      .then((r) => r.json())
      .then((d) => { if (d.publicUrl) setTunnelEndpoint(d.publicUrl); })
      .catch(() => {});

    // Pre-select default voice based on provider config
    if (config.voiceSource === "hardcoded") {
      const voiceKey = config.voiceKey || providerId;
      const voices = getModelsByProviderId(voiceKey).filter((m) => m.type === "tts");
      if (voices.length) {
        if (config.hasLanguageDropdown) {
          // Google TTS: just set voice
          setSelectedVoice(voices[0].id);
          setSelectedVoiceName(voices[0].name || voices[0].id);
        } else {
          // OpenAI: set voice chips
          setCountryVoices(voices);
          setSelectedVoice(voices[0].id);
          setSelectedVoiceName(voices[0].name || voices[0].id);
        }
      }
    }
    // api-language (edge-tts, local-device, elevenlabs): NO default load, wait for user to pick language
  }, [providerId]);

  // Open modal — load language list
  const openModal = async () => {
    setModalOpen(true);
    setModalSearch("");
    setModalError("");
    if (languages.length) return; // already loaded
    setModalLoading(true);
    try {
      // Use provider-specific apiEndpoint if available, else default to edge-tts voices API
      const url = config.apiEndpoint
        ? config.apiEndpoint
        : `/api/media-providers/tts/voices?provider=${providerId === "local-device" ? "local-device" : "edge-tts"}`;
      const r = await fetch(url);
      const d = await r.json();
      if (d.error) { setModalError(d.error); return; }
      setLanguages(d.languages || []);
      setByLang(d.byLang || {});
    } catch (e) {
      setModalError(e.message);
    } finally {
      setModalLoading(false);
    }
  };

  // Click language → close modal → show voices below
  const handlePickLanguage = (lang) => {
    setModalOpen(false);
    setSelectedLang(lang.code);
    const voices = byLang[lang.code]?.voices || [];
    setCountryVoices(voices);
    // Auto-select first voice
    if (voices.length) {
      setSelectedVoice(voices[0].id);
      setSelectedVoiceName(voices[0].name);
      if (config.hasVoiceIdInput) setVoiceId(voices[0].id);
    }
  };

  const filteredLanguages = modalSearch
    ? languages.filter((c) =>
        c.name.toLowerCase().includes(modalSearch.toLowerCase()) ||
        c.code.toLowerCase().includes(modalSearch.toLowerCase())
      )
    : languages;

  const endpoint = useTunnel ? tunnelEndpoint : localEndpoint;
  // For ElevenLabs: use voiceId (editable) instead of selectedVoice
  const activeVoiceId = config.hasVoiceIdInput ? voiceId : selectedVoice;
  const modelFull = config.hasModelSelector && activeVoiceId && selectedModel
    ? `${providerAlias}/${selectedModel}/${activeVoiceId}`
    : activeVoiceId ? `${providerAlias}/${activeVoiceId}` : "";

  const curlSnippet = `curl -X POST ${endpoint}/v1/audio/speech${responseFormat === "json" ? "?response_format=json" : ""} \\
  -H "Content-Type: application/json" \\
  -H "Authorization: Bearer ${apiKey || "YOUR_KEY"}" \\
  -d '{"model": "${modelFull}", "input": "${input}"}' \\
  ${responseFormat === "json" ? "" : "--output speech.mp3"}`;

  const handleRun = async () => {
    if (!input.trim() || !modelFull) return;
    setRunning(true);
    setError("");
    setAudioUrl("");
    setJsonResponse(null);
    const start = Date.now();
    try {
      const headers = { "Content-Type": "application/json" };
      if (apiKey) headers["Authorization"] = `Bearer ${apiKey}`;
      const url = `/api/v1/audio/speech${responseFormat === "json" ? "?response_format=json" : ""}`;
      const res = await fetch(url, {
        method: "POST",
        headers,
        body: JSON.stringify({ model: modelFull, input: input.trim() }),
      });
      setLatency(Date.now() - start);
      if (!res.ok) {
        const d = await res.json().catch(() => ({}));
        setError(d?.error?.message || d?.error || `HTTP ${res.status}`);
        return;
      }
      
      if (responseFormat === "json") {
        const data = await res.json();
        setJsonResponse(data); // Store full JSON response
        const audioBlob = await fetch(`data:audio/mp3;base64,${data.audio}`).then(r => r.blob());
        setAudioUrl(URL.createObjectURL(audioBlob));
      } else {
        const blob = await res.blob();
        setAudioUrl(URL.createObjectURL(blob));
      }
    } catch (e) {
      setError(e.message || "Network error");
    } finally {
      setRunning(false);
    }
  };

  return (
    <>
      <Card>
        <h2 className="text-lg font-semibold mb-4">Example</h2>

        <div className="flex flex-col gap-2.5">
          {/* Endpoint + API Key as read-only text */}
          <Row label="Endpoint">
            <div className="flex items-center gap-2">
              <span className="flex-1 px-3 py-1.5 text-sm font-mono text-text-main bg-sidebar rounded-lg truncate">
                {endpoint}/v1/audio/speech
              </span>
              {tunnelEndpoint && (
                <button
                  onClick={() => setUseTunnel((v) => !v)}
                  title={useTunnel ? "Using tunnel" : "Using local"}
                  className={`flex items-center gap-1 text-xs px-2 py-1.5 rounded-lg border shrink-0 transition-colors ${
                    useTunnel ? "border-primary/40 bg-primary/10 text-primary" : "border-border text-text-muted hover:text-primary"
                  }`}
                >
                  <span className="material-symbols-outlined text-[14px]">wifi_tethering</span>
                  Tunnel
                </button>
              )}
            </div>
          </Row>
          <Row label="API Key">
            <span className="px-3 py-1.5 text-sm font-mono text-text-main bg-sidebar rounded-lg truncate block">
              {apiKey ? `${apiKey.slice(0, 8)}${"•".repeat(Math.min(20, apiKey.length - 8))}` : <span className="text-text-muted italic">No key configured</span>}
            </span>
          </Row>

          {/* Model selector (OpenAI, ElevenLabs) */}
          {config.hasModelSelector && config.modelKey && (
            <Row label="Model">
              <select
                value={selectedModel}
                onChange={(e) => setSelectedModel(e.target.value)}
                className="w-full px-3 py-1.5 text-sm border border-border rounded-lg bg-background focus:outline-none focus:border-primary"
              >
                {(getModelsByProviderId(config.modelKey) || []).map((m) => (
                  <option key={m.id} value={m.id}>{m.name || m.id}</option>
                ))}
              </select>
            </Row>
          )}

          {/* Language row + Browse button (edge-tts, local-device, elevenlabs) */}
          {config.hasBrowseButton && (
            <Row label="Language">
              <div className="flex items-center gap-2">
                <button
                  onClick={openModal}
                  className="flex-1 px-3 py-1.5 text-sm border border-border rounded-lg bg-background font-mono truncate text-left hover:border-primary/40 transition-colors"
                >
                  {selectedLang
                    ? <span className="text-text-main">{languages.find((l) => l.code === selectedLang)?.name || selectedLang}</span>
                    : <span className="text-text-muted">No language selected</span>}
                </button>
                <button
                  onClick={openModal}
                  className="flex items-center gap-1 text-xs px-2.5 py-1.5 rounded-lg border border-border text-text-muted hover:text-primary hover:border-primary/40 transition-colors shrink-0"
                >
                  <span className="material-symbols-outlined text-[14px]">language</span>
                  Browse
                </button>
              </div>
            </Row>
          )}

          {/* Voice chips — shown after language picked (edge-tts, local-device) or always (OpenAI/ElevenLabs) */}
          {countryVoices.length > 0 && (
            <Row label="Voice">
              <div className="flex flex-wrap gap-1.5">
                {countryVoices.map((v) => (
                  <button
                    key={v.id}
                    onClick={() => {
                      setSelectedVoice(v.id);
                      setSelectedVoiceName(v.name);
                      if (config.hasVoiceIdInput) setVoiceId(v.id);
                    }}
                    className={`px-2.5 py-1 rounded-full text-xs border transition-colors ${
                      selectedVoice === v.id
                        ? "bg-primary/15 border-primary/40 text-primary font-medium"
                        : "border-border text-text-muted hover:text-primary hover:border-primary/40"
                    }`}
                  >
                    {v.name}{v.gender ? ` · ${v.gender[0].toUpperCase()}` : ""}
                    {v.free_users_allowed === true && (
                      <span className="ml-1.5 px-1 py-0.5 text-[9px] font-semibold rounded bg-green-500/15 text-green-600 border border-green-500/20">Free</span>
                    )}
                    {v.free_users_allowed === false && (
                      <span className="ml-1.5 px-1 py-0.5 text-[9px] font-semibold rounded bg-amber-500/15 text-amber-600 border border-amber-500/20">Paid</span>
                    )}
                  </button>
                ))}
              </div>
            </Row>
          )}

          {/* Voice ID input (ElevenLabs) — manual entry or auto-fill from chip */}
          {config.hasVoiceIdInput && (
            <Row label="Voice ID">
              <div className="flex flex-col gap-1">
                <div className="relative">
                  <input
                    value={voiceId}
                    onChange={(e) => {
                      setVoiceId(e.target.value);
                      setSelectedVoice(e.target.value);
                    }}
                    placeholder="e.g. CwhRBWXzGAHq8TQ4Fs17"
                    className="w-full px-3 py-1.5 pr-7 text-sm border border-border rounded-lg bg-background focus:outline-none focus:border-primary font-mono"
                  />
                  {voiceId && (
                    <button
                      type="button"
                      onClick={() => { setVoiceId(""); setSelectedVoice(""); }}
                      className="absolute right-2 top-1/2 -translate-y-1/2 text-text-muted hover:text-primary transition-colors"
                    >
                      <span className="material-symbols-outlined text-[14px]">close</span>
                    </button>
                  )}
                </div>
              </div>
            </Row>
          )}

          {/* Google TTS: Language dropdown */}
          {config.hasLanguageDropdown && (
            <Row label="Language">
              <select
                value={selectedVoice}
                onChange={(e) => {
                  const m = getModelsByProviderId(providerId).filter((m) => m.type === "tts").find((m) => m.id === e.target.value);
                  setSelectedVoice(e.target.value);
                  setSelectedVoiceName(m?.name || e.target.value);
                }}
                className="w-full px-3 py-1.5 text-sm border border-border rounded-lg bg-background focus:outline-none focus:border-primary"
              >
                {getModelsByProviderId(providerId).filter((m) => m.type === "tts").map((m) => (
                  <option key={m.id} value={m.id}>{m.name || m.id}</option>
                ))}
              </select>
            </Row>
          )}

          {/* Input */}
          <Row label="Input">
            <div className="relative">
              <input
                value={input}
                onChange={(e) => setInput(e.target.value)}
                className="w-full px-3 py-1.5 pr-7 text-sm border border-border rounded-lg bg-background focus:outline-none focus:border-primary"
              />
              {input && (
                <button
                  type="button"
                  onClick={() => setInput("")}
                  className="absolute right-2 top-1/2 -translate-y-1/2 text-text-muted hover:text-primary transition-colors"
                >
                  <span className="material-symbols-outlined text-[14px]">close</span>
                </button>
              )}
            </div>
          </Row>

          {/* Output Format */}
          <Row label="Output Format">
            <select
              value={responseFormat}
              onChange={(e) => setResponseFormat(e.target.value)}
              className="w-full px-3 py-1.5 text-sm border border-border rounded-lg bg-background focus:outline-none focus:border-primary"
            >
              <option value="mp3">MP3 (Binary)</option>
              <option value="json">JSON (Base64)</option>
            </select>
          </Row>

          {/* Curl + Run */}
          <div className="mt-1">
            <div className="flex items-center justify-between mb-1.5">
              <span className="text-xs font-semibold text-text-muted uppercase tracking-wider">Request</span>
              <div className="flex items-center gap-2">
                <button
                  onClick={() => copyCurl(curlSnippet)}
                  className="flex items-center gap-1 text-xs text-text-muted hover:text-primary transition-colors"
                >
                  <span className="material-symbols-outlined text-[14px]">{copiedCurl ? "check" : "content_copy"}</span>
                  {copiedCurl ? "Copied" : "Copy"}
                </button>
                <button
                  onClick={handleRun}
                  disabled={running || !input.trim() || !modelFull}
                  className="flex items-center gap-1.5 px-3 py-1 rounded-lg bg-primary text-white text-xs font-medium hover:bg-primary/90 transition-colors disabled:opacity-50 disabled:cursor-not-allowed"
                >
                  <span className="material-symbols-outlined text-[14px]" style={running ? { animation: "spin 1s linear infinite" } : undefined}>
                    {running ? "progress_activity" : "play_arrow"}
                  </span>
                  {running ? "Generating..." : "Run"}
                </button>
              </div>
            </div>
            <pre className="bg-sidebar rounded-lg px-3 py-2.5 text-xs font-mono text-text-main overflow-x-auto whitespace-pre">{curlSnippet}</pre>
          </div>

          {error && <p className="text-xs text-red-500 break-words">{error}</p>}

          {/* Audio player */}
          {audioUrl ? (
            <div>
              <div className="flex items-center justify-between mb-1.5">
                <span className="text-xs font-semibold text-text-muted uppercase tracking-wider">
                  Response {latency && <span className="font-normal normal-case">&#9889; {latency}ms</span>}
                </span>
                <a href={audioUrl} download="speech.mp3" className="flex items-center gap-1 text-xs text-text-muted hover:text-primary transition-colors">
                  <span className="material-symbols-outlined text-[14px]">download</span>
                  Download
                </a>
              </div>
              <audio controls src={audioUrl} className="w-full" />
              
              {/* JSON Response (if format is json) */}
              {jsonResponse && (
                <div className="mt-3">
                  <div className="flex items-center justify-between mb-1.5">
                    <span className="text-xs font-semibold text-text-muted uppercase tracking-wider">JSON Response</span>
                  </div>
                  <pre className="bg-sidebar rounded-lg px-3 py-2.5 text-xs font-mono text-text-main overflow-x-auto whitespace-pre-wrap break-all">
                    {JSON.stringify({
                      format: jsonResponse.format,
                      audio: jsonResponse.audio ? `${jsonResponse.audio.substring(0, 100)}...` : ""
                    }, null, 2)}
                  </pre>
                </div>
              )}
            </div>
          ) : (
            <p className="text-xs text-text-muted opacity-60">Audio will appear here after running.</p>
          )}
        </div>
      </Card>

      {/* Country Picker Modal */}
      {modalOpen && (
        <div
          className="fixed inset-0 z-50 flex items-center justify-center"
          style={{ backgroundColor: "rgba(0,0,0,0.6)", backdropFilter: "blur(2px)" }}
          onClick={() => setModalOpen(false)}
        >
          <div
            className="border border-border rounded-xl shadow-2xl w-full max-w-md mx-4 flex flex-col max-h-[80vh]"
            style={{ backgroundColor: "var(--color-bg)", isolation: "isolate" }}
            onClick={(e) => e.stopPropagation()}
          >
            {/* Header */}
            <div className="flex items-center justify-between px-4 py-3 border-b border-border shrink-0 rounded-t-xl">
              <h3 className="text-sm font-semibold">Select Language</h3>
              <button onClick={() => setModalOpen(false)} className="text-text-muted hover:text-primary transition-colors">
                <span className="material-symbols-outlined text-[20px]">close</span>
              </button>
            </div>

            {/* Search */}
            <div className="px-4 py-2.5 border-b border-border shrink-0">
              <input
                autoFocus
                value={modalSearch}
                onChange={(e) => setModalSearch(e.target.value)}
                placeholder="Search language..."
                className="w-full px-3 py-1.5 text-sm border border-border rounded-lg bg-background focus:outline-none focus:border-primary"
              />
            </div>

            {/* Language list */}
            <div className="overflow-y-auto flex-1 p-2">
              {modalError && <p className="text-xs text-red-500 px-2 py-1">{modalError}</p>}
              {modalLoading ? (
                <p className="text-xs text-text-muted px-2 py-3">Loading...</p>
              ) : (
                <div className="flex flex-col gap-0.5">
                  {filteredLanguages.map((c) => (
                    <button
                      key={c.code}
                      onClick={() => handlePickLanguage(c)}
                      className={`flex items-center justify-between w-full px-3 py-2 rounded-lg text-left hover:bg-sidebar transition-colors ${
                        selectedLang === c.code ? "bg-primary/10 text-primary" : ""
                      }`}
                    >
                      <span className="text-sm">{c.name}</span>
                      <div className="flex items-center gap-2 shrink-0">
                        <span className="text-xs text-text-muted">{c.voices.length} voices</span>
                        {selectedLang === c.code && (
                          <span className="material-symbols-outlined text-[16px] text-primary">check</span>
                        )}
                      </div>
                    </button>
                  ))}
                  {filteredLanguages.length === 0 && (
                    <p className="text-xs text-text-muted px-2 py-3">No languages found.</p>
                  )}
                </div>
              )}
            </div>
          </div>
        </div>
      )}
    </>
  );
}

// MediaProviderDetailPage
export default function MediaProviderDetailPage() {
  const { kind, id } = useParams();
  const kindConfig = MEDIA_PROVIDER_KINDS.find((k) => k.id === kind);
  if (!kindConfig) return notFound();

  const provider = AI_PROVIDERS[id];
  if (!provider) return notFound();

  const kinds = provider.serviceKinds ?? ["llm"];
  if (!kinds.includes(kind)) return notFound();

  return (
    <div className="flex flex-col gap-8">
      {/* Back */}
      <div>
        <Link
          href={`/dashboard/media-providers/${kind}`}
          className="inline-flex items-center gap-1 text-sm text-text-muted hover:text-primary transition-colors mb-4"
        >
          <span className="material-symbols-outlined text-lg">arrow_back</span>
          {kindConfig.label}
        </Link>

        {/* Header */}
        <div className="flex items-center gap-4">
          <div className="size-12 rounded-lg flex items-center justify-center shrink-0" style={{ backgroundColor: `${provider.color}15` }}>
            <ProviderIcon
              src={`/providers/${provider.id}.png`}
              alt={provider.name}
              size={48}
              className="object-contain rounded-lg max-w-[48px] max-h-[48px]"
              fallbackText={provider.textIcon || provider.id.slice(0, 2).toUpperCase()}
              fallbackColor={provider.color}
            />
          </div>
          <div>
            <h1 className="text-3xl font-semibold tracking-tight">{provider.name}</h1>
            <div className="flex items-center gap-1.5 mt-1 flex-wrap">
              {kinds.map((k) => (
                <Badge key={k} variant={k === kind ? "primary" : "default"} size="sm">
                  {k.toUpperCase()}
                </Badge>
              ))}
            </div>
          </div>
        </div>
      </div>

      {/* Connections */}
      {provider.noAuth ? (
        <Card>
          <div className="flex items-center gap-3">
            <div className="inline-flex items-center justify-center w-10 h-10 rounded-full bg-green-500/10 text-green-500">
              <span className="material-symbols-outlined text-[20px]">lock_open</span>
            </div>
            <div>
              <p className="text-sm font-medium">No authentication required</p>
              <p className="text-xs text-text-muted">This provider is ready to use.</p>
            </div>
          </div>
        </Card>
      ) : (
        <ConnectionsCard providerId={id} isOAuth={false} />
      )}

      {/* Models - only for non-tts kinds */}
      {kind !== "tts" && <ModelsCard providerId={id} kindFilter={kind} />}

      {/* Example — per kind */}
      {kind === "embedding" && <EmbeddingExampleCard providerId={id} />}
      {kind === "tts" && <TtsExampleCard providerId={id} />}
    </div>
  );
}