"""Hotel Search App — Gradio Interface

A free-form, natural-language hotel search application.
Deployed on Hugging Face Spaces.
"""

import os
from pathlib import Path

import gradio as gr
from dotenv import load_dotenv

# Load .env from the same directory as this script so it works
# both locally and on Hugging Face Spaces.
_env_path = Path(__file__).resolve().parent / ".env"
load_dotenv(dotenv_path=_env_path, override=True)

from search import hotel_search

TITLE = "🏨 Hotel Search — Find Your Perfect Stay"

DESCRIPTION = """\
**Describe your ideal hotel in plain English** and this app will find matching hotels \
with direct links to their websites — no travel agency middlemen.

Mention your **location**, **dates**, **budget**, and any **amenities** you need. \
You can mark features as *required* ("must have a pool") or *preferred* \
("ideally has a spa") and the app will rank results accordingly.
"""

EXAMPLES = [
    [
        "I'm looking for a beachfront hotel in Miami, Florida for March 15-18, 2026. "
        "I need free parking and it must be under $200 per night. "
        "A pool and spa would be nice but aren't required."
    ],
    [
        "Find me a pet-friendly hotel in downtown Austin, Texas for next weekend. "
        "Must have free breakfast. Ideally has a rooftop bar and is walkable to "
        "live music venues. Budget around $150/night."
    ],
    [
        "I need a luxury hotel in Manhattan, New York for 2 guests, April 5-8, 2026. "
        "Must have a fitness center and concierge service. "
        "Would prefer a room with a city view and a hotel restaurant."
    ],
    [
        "Budget-friendly hotel near Disneyland in Anaheim, California for a family "
        "of 4. Must be under $120/night and have free Wi-Fi. "
        "Would be nice to have a shuttle to the park and a pool for the kids."
    ],
    [
        "Romantic boutique hotel in Savannah, Georgia for a weekend getaway. "
        "Must be in the historic district. Prefer a hotel with a garden, "
        "complimentary wine hour, and within walking distance of restaurants."
    ],
]


def search_wrapper(user_input: str) -> str:
    """Thin wrapper so Gradio can call the search pipeline."""
    return hotel_search(user_input)


with gr.Blocks(
    title="Hotel Search",
    theme=gr.themes.Soft(
        primary_hue="blue",
        secondary_hue="sky",
        font=gr.themes.GoogleFont("Inter"),
    ),
) as demo:
    gr.Markdown(f"# {TITLE}")
    gr.Markdown(DESCRIPTION)

    with gr.Row():
        with gr.Column(scale=3):
            user_input = gr.Textbox(
                label="Describe Your Ideal Hotel",
                placeholder=(
                    "e.g. I need a beachfront hotel in Miami for March 15-18 "
                    "under $200/night with free parking. A pool would be nice..."
                ),
                lines=5,
            )
            search_btn = gr.Button("🔍 Search Hotels", variant="primary", size="lg")
        with gr.Column(scale=1):
            gr.Markdown(
                "### Tips for Best Results\n"
                "- **Be specific** about location\n"
                "- **Include dates** if you have them\n"
                "- **Set a budget** (e.g. under $150/night)\n"
                "- **Say 'must have'** for requirements\n"
                "- **Say 'would be nice'** for preferences\n"
                "- Avoid requiring features rarely listed "
                "(e.g. Wi-Fi is universal but rarely advertised)"
            )

    results_output = gr.Markdown(label="Search Results")

    search_btn.click(fn=search_wrapper, inputs=user_input, outputs=results_output)
    user_input.submit(fn=search_wrapper, inputs=user_input, outputs=results_output)

    gr.Examples(
        examples=EXAMPLES,
        inputs=user_input,
        label="Example Searches — Click to Try",
    )

    gr.Markdown(
        "---\n"
        "*This app uses AI to interpret your request and searches the web for "
        "matching hotels. All links point to hotel websites directly — never to "
        "travel agencies like Expedia or Booking.com.*"
    )

if __name__ == "__main__":
    demo.launch()