"""
Shared KGX3 API Endpoint – Calling KGX3 on PreprintWatch.com. Uploads research papers to the shared endpoint (secured with X-API-Key),
retrieves a signed temporary link, and sends it to the PreprintWatch KGX3 API. Output: JSON formatted Kuhnian Classification Report
"""

import gradio as gr
import requests, json, pathlib, mimetypes, re

# === CONFIGURATION ===
WP_UPLOAD_URL = "https://preprintwatch.com/wp-json/kgx3/v1/upload"   # your WP REST route
WP_UPLOAD_KEY = "lmsijtadti7tiDD6750xNdN"                             # shared secret
API_ENDPOINT  = "https://preprintwatch.com/wp-json/pw-kgx3/v1/submit" # KGX3 proxy
API_KEY       = "sk-X1zY9wS3-vU4tQ0-rOjH5gK2fE7mN6"                   # internal KGX3 key


# === HELPERS ===
def upload_private_pdf(pdf_path: str) -> str:
    """Upload to WordPress secure uploader and return signed fetch URL."""
    with open(pdf_path, "rb") as f:
        r = requests.post(
            WP_UPLOAD_URL,
            headers={"X-API-Key": WP_UPLOAD_KEY},
            files={"file": f},
            timeout=60
        )
    r.raise_for_status()
    data = r.json()
    if "fetch_url" not in data:
        raise RuntimeError(f"Upload failed: {data}")
    return data["fetch_url"]


# === MAIN WORKFLOW ===
def call_kgx3(title, email, pdf_file, agreement):
    if not agreement:
        return "⚠️ You must accept the disclaimer before running KGX3.", ""
    if not pdf_file:
        return "Please select a PDF file.", ""
    if not email or not re.match(r"[^@]+@[^@]+\.[^@]+", email):
        return "A valid email address is required to run KGX3.", ""

    pdf_path = pdf_file.name
    if not pdf_path.lower().endswith(".pdf"):
        return "Only PDF files are supported.", ""

    # --- Upload to WP and get temporary signed URL ---
    try:
        file_url = upload_private_pdf(pdf_path)
    except Exception as e:
        return f"Upload error: {e}", ""

    # --- Forward to KGX3 ---
    headers = {"X-API-Key": API_KEY, "Content-Type": "application/json"}
    payload = {"title": title or pathlib.Path(pdf_path).stem, "pdf_url": file_url, "email": email}

    try:
        resp = requests.post(API_ENDPOINT, headers=headers, json=payload, timeout=180)
        try:
            body = json.dumps(resp.json(), indent=2, ensure_ascii=False)
        except Exception:
            body = resp.text
        return body, file_url
    except requests.RequestException as e:
        return f"Request error: {e}", file_url


# === STYLE (high-contrast Matrix aesthetic) ===
FUTURE_CSS = """
/* === UNIVERSAL RESET === */
html, body, .gradio-container, section, div, .form, .gr-block, .gr-panel, .gr-box, .gr-column, .gr-row, .container, .file-preview, .upload-box, .wrap-inner {
  background-color: #000 !important;
  color: #00ff99 !important;
  font-family: 'Courier New', monospace !important;
  box-sizing: border-box;
}

/* === GENERAL TEXT === */
* { color: #00ff99 !important; }
h1, h2, h3, label, .label {
  font-weight: 700 !important;
  text-transform: uppercase;
  border-bottom: 1px solid #00ff99;
  margin-bottom: 6px;
  padding-bottom: 4px;
  letter-spacing: 0.5px;
}

/* === CONTAINERS === */
.gr-box, .gr-panel, .gr-block, .gr-column, .gr-row, .form {
  border: 1px solid #00ff99 !important;
  border-radius: 6px;
  background-color: #000 !important;
  padding: 8px !important;
}

/* === INPUTS & TEXTAREAS === */
input, textarea, select {
  background-color: #000 !important;
  color: #00ff99 !important;
  border: 1px solid #00ff99 !important;
  border-radius: 4px;
  padding: 6px 8px !important;
}
input:focus, textarea:focus {
  outline: none !important;
  border: 1px solid #00ffcc !important;
  background-color: #001a10 !important;
}
::placeholder { color: #00ff99 !important; opacity: 0.6; }

/* === FILE UPLOAD === */
.upload-box, .file-preview, .wrap-inner, .file-preview-container {
  background-color: #000 !important;
  border: 2px solid #00ff99 !important;
  border-radius: 6px !important;
  padding: 10px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: all 0.2s ease-in-out;
}
.upload-box:hover, .file-preview:hover {
  background-color: #001a10 !important;
  border-color: #00ffaa !important;
}

/* === BUTTONS === */
button {
  background-color: #000 !important;
  color: #00ff99 !important;
  border: 2px solid #00ff99 !important;
  border-radius: 4px;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 8px 16px !important;
  transition: all 0.15s ease-in-out;
}
button:hover {
  background-color: #00ff99 !important;
  color: #000 !important;
}

/* === OUTPUT / CODE AREA === */
pre, code, .cm-editor, .cm-content, .cm-line, .output-html, .output-markdown {
  background-color: #000 !important;
  color: #00ff99 !important;
  border: 1px solid #00ff99 !important;
  border-radius: 6px;
  padding: 10px !important;
  font-size: 0.9rem;
}

/* === CHECKBOX === */
input[type=checkbox] {
  accent-color: #00ff99 !important;
  transform: scale(1.2);
}

/* === SCROLLBARS === */
::-webkit-scrollbar { width: 8px; background: #000; }
::-webkit-scrollbar-thumb { background: #00ff99; border-radius: 4px; }

/* === FOOTER === */
footer, .footer, small {
  color: #00ff99 !important;
  opacity: 0.8;
  text-align: center;
  letter-spacing: 0.4px;
}
"""

# === BUILD INTERFACE ===
with gr.Blocks(css=FUTURE_CSS, title="KGX3 Research Analyzer") as demo:
    gr.Markdown("""
    # **KGX3 Engine**
    Upload a scientific preprint PDF. The app sends it to the shared KGX3 API endpoint demonstrating the API function.
    """)

    # --- Disclaimer ---
    gr.Markdown("""
    ### ⚠️ Disclaimer
    By using this interface, you confirm that:
    - You are responsible and accountable for the files you upload.  
    - All uploaded files are automatically deleted within **24 hours**.  
    - System logs of KGX3 activity are retained securely for **up to 60 days** for auditing.  
    - You must ensure that any material you upload is lawful, non-confidential, and free of third-party rights restrictions.
    """)
    agreement = gr.Checkbox(
        label="I have read and accept full responsibility and accountability for the files I upload.",
        value=False
    )

    # --- Layout ---
    with gr.Row():
        with gr.Column(scale=1):
            title_box = gr.Textbox(label="Enter the paper title", placeholder="Enter or paste the paper title")
            email_box = gr.Textbox(label="Email (required)", placeholder="you@example.com")
            file_box  = gr.File(label="Upload PDF", file_types=[".pdf"], type="filepath")
            run_btn   = gr.Button("Run KGX3", variant="primary")
        with gr.Column(scale=1):
            output_json = gr.Code(label="KGX3 Response", language="json")
            output_url  = gr.Textbox(label="Temporary PDF Link", interactive=False)

    run_btn.click(call_kgx3,
                  inputs=[title_box, email_box, file_box, agreement],
                  outputs=[output_json, output_url])

    gr.Markdown("<small>Built on Gradio • Thomas Kuhn Foundation © All rights reserved.</small>")

demo.launch()