import asyncio
from datetime import datetime
import json
import os
import pathlib
import click
import importlib

from rec.districts import get_districts
from data_access import Listing
import csv_exporter
from rec.query import ListingType, FurnishType, QueryParameters
from rec.routing import API_KEY_ENVIRONMENT_VARIABLE, TravelMode
from repositories.listing_repository import ListingRepository
from ui_exporter import export_immoweb as export_immoweb_ui
from functools import wraps
from database import engine


dump_listings_module = importlib.import_module("1_dump_listings")
dump_images_module = importlib.import_module("3_dump_images")
detect_floorplan_module = importlib.import_module("4_detect_floorplan")
routing_module = importlib.import_module("5_routing")


def listing_filter_options(func):
    """Decorator to add common options for filtering listings."""

    @click.option(
        "--type",
        "-t",
        help="Type of listing to scrape",
        type=click.Choice(
            ListingType.__members__.keys(),
            case_sensitive=False,
        ),
        required=True,
    )
    @click.option(
        "--min-bedrooms",
        default=1,
        help="Minimum number of bedrooms",
        type=click.IntRange(min=1),
    )
    @click.option(
        "--max-bedrooms",
        default=5,
        help="Maximum number of bedrooms",
        type=click.IntRange(min=1),
    )
    @click.option(
        "--min-price",
        default=0,
        help="Minimum price",
        type=click.IntRange(min=0),
    )
    @click.option(
        "--max-price",
        default=1000000,
        help="Maximum price",
        type=click.IntRange(min=0),
    )
    @click.option(
        "--district",
        default=None,
        help="Districts to scrape",
        type=click.Choice(get_districts().keys(), case_sensitive=False),
        multiple=True,
    )
    @click.option(
        "--furnish-types",
        "-f",
        help="Furnish types for rented listings",
        type=click.Choice(
            [furnish_type.name for furnish_type in FurnishType.__members__.values()],
            case_sensitive=False,
        ),
        multiple=True,
    )
    @click.option(
        "--available-from",
        help="Let date available from",
        default=None,
        type=click.DateTime(),
    )
    @click.option(
        "--last-seen-days",
        help="Last seen (days). If set, only listings that were seen in the last N days will be included.",
        default=14,
        type=int,
    )
    @click.option(
        "--min-sqm",
        help="Minimum square meters for the listing",
        default=None,
        type=int,
    )
    @wraps(func)
    def wrapper(*args, **kwargs):
        return func(*args, **kwargs)

    return wrapper


@click.group()
@click.option(
    "--data-dir",
    default=pathlib.Path("data/rs/"),
    help="Districts to scrape",
    type=click.Path(
        writable=True,
        file_okay=False,
        dir_okay=True,
        resolve_path=True,
    ),
)
@click.pass_context
def cli(ctx, data_dir: str):
    ctx.ensure_object(dict)
    ctx.obj["data_dir"] = data_dir


@cli.command()
@listing_filter_options
@click.pass_context
def dump_listings(
    ctx: click.core.Context,
    district: list[str],
    min_bedrooms: int,
    max_bedrooms: int,
    min_price: int,
    max_price: int,
    type: str,
    furnish_types: list[str],
    available_from: datetime | None,
    last_seen_days: int,
    min_sqm: int | None = None,
):
    data_dir: str = ctx.obj["data_dir"]
    query_parameters = QueryParameters(
        listing_type=ListingType[type],
        district_names=set(district),
        min_bedrooms=min_bedrooms,
        max_bedrooms=max_bedrooms,
        min_price=min_price,
        max_price=max_price,
        furnish_types=[FurnishType[furnish_type] for furnish_type in furnish_types],
        let_date_available_from=available_from,
        last_seen_days=last_seen_days,
        min_sqm=min_sqm,
    )
    click.echo(
        f"Running dump_listings for districts {district}, data dir {data_dir} and parameters: "
        f"{query_parameters}"
    )
    data_dir_path = pathlib.Path(data_dir)
    repository = ListingRepository(engine=engine)
    asyncio.run(
        dump_listings_module.dump_listings(query_parameters, repository, data_dir_path)
    )


@cli.command()
@click.pass_context
def dump_images(ctx: click.core.Context):
    data_dir = ctx.obj["data_dir"]
    click.echo(f"Running dump_images for listings stored in {engine.url}")
    repository = ListingRepository(engine=engine)
    asyncio.run(dump_images_module.dump_images(repository, image_base_path=data_dir))


@cli.command()
@click.pass_context
def detect_floorplan(ctx: click.core.Context):
    data_dir = ctx.obj["data_dir"]
    click.echo(f"Running detect_floorplan for listings stored in {engine.url}")
    repository = ListingRepository(engine=engine)
    asyncio.run(detect_floorplan_module.detect_floorplan(repository))


@cli.command()
@click.option(
    "--destination-address",
    "-d",
    help="Destination address for routing",
    required=True,
    type=click.STRING,
)
@click.option(
    "--travel-mode",
    "-m",
    help="Travel mode for routing",
    type=click.Choice(
        TravelMode.__members__.keys(),
        case_sensitive=False,
    ),
    required=True,
)
@click.option(
    "--limit",
    "-l",
    help="Limit the number of listings to process",
    type=click.IntRange(min=1),
    default=1,  # by default limit to 1 to avoid accidental API usage
)
@click.pass_context
def routing(
    ctx: click.core.Context, destination_address: str, travel_mode: str, limit: int
):
    data_dir = ctx.obj["data_dir"]
    click.echo(f"Running routing for the first {limit} listings in {data_dir}")
    listing_paths = sorted(list(pathlib.Path(data_dir).glob("*/listing.json")))
    listing_paths = listing_paths[:limit]
    if os.environ.get(API_KEY_ENVIRONMENT_VARIABLE) is None:
        raise click.exceptions.MissingParameter(
            f"{API_KEY_ENVIRONMENT_VARIABLE} environment variable is not set. "
            "Please set it to your API key for the routing service."
        )

    repository = ListingRepository(engine=engine)
    asyncio.run(
        routing_module.calculate_route(
            repository,
            destination_address,
            # destination_address_coordinates,
            TravelMode[travel_mode],
            limit=limit,
        )
    )


@cli.command()
@click.option(
    "--columns",
    "-C",
    help="Columns to include in the CSV file",
    type=click.Choice(
        Listing.ALL_COLUMNS,
        case_sensitive=False,
    ),
    multiple=True,
    default=Listing.ALL_COLUMNS,
)
@click.option(
    "--output-file",
    "-O",
    help="Path to the output CSV file",
    required=True,
    type=click.Path(
        writable=True,
        file_okay=True,
        dir_okay=False,
        resolve_path=True,
    ),
)
@click.pass_context
@listing_filter_options
def export_csv(
    ctx: click.core.Context,
    output_file: str,
    columns: tuple[str],
    district: list[str],
    min_bedrooms: int,
    max_bedrooms: int,
    min_price: int,
    max_price: int,
    type: str,
    furnish_types: list[str],
    available_from: datetime | None,
    last_seen_days: int,
    min_sqm: int | None = None,
):
    data_dir = ctx.obj["data_dir"]
    query_parameters = QueryParameters(
        listing_type=ListingType[type],
        district_names=set(district),
        min_bedrooms=min_bedrooms,
        max_bedrooms=max_bedrooms,
        min_price=min_price,
        max_price=max_price,
        furnish_types=[FurnishType[furnish_type] for furnish_type in furnish_types],
        let_date_available_from=available_from,
        last_seen_days=last_seen_days,
        min_sqm=min_sqm,
    )
    click.echo(
        f"Exporting data to {output_file} using {data_dir=} and query parameters: {query_parameters}"
    )
    output_file_path = pathlib.Path(output_file)
    listing_paths = sorted(list(pathlib.Path(data_dir).glob("*/listing.json")))
    listings = Listing.get_all_listings([path for path in listing_paths])
    asyncio.run(
        csv_exporter.export_to_csv(
            listings,
            output_file_path,
            list(columns),
            query_parameters=query_parameters,
        ),
    )


@cli.command()
@click.option(
    "--output-file",
    "-O",
    help="Path to the output immoweb file",
    required=True,
    type=click.Path(
        writable=True,
        file_okay=True,
        dir_okay=False,
        resolve_path=True,
    ),
)
@listing_filter_options
@click.pass_context
def export_immoweb(
    ctx: click.core.Context,
    output_file: str,
    district: list[str],
    min_bedrooms: int,
    max_bedrooms: int,
    min_price: int,
    max_price: int,
    type: str,
    furnish_types: list[str],
    available_from: datetime | None,
    last_seen_days: int,
    min_sqm: int | None = None,
):
    query_parameters = QueryParameters(
        listing_type=ListingType[type],
        district_names=set(district),
        min_bedrooms=min_bedrooms,
        max_bedrooms=max_bedrooms,
        min_price=min_price,
        max_price=max_price,
        furnish_types=[FurnishType[furnish_type] for furnish_type in furnish_types],
        let_date_available_from=available_from,
        last_seen_days=last_seen_days,
        min_sqm=min_sqm,
    )
    click.echo(
        f"Exporting data to {output_file} that matches the query parameters: {query_parameters}"
    )
    asyncio.run(export_immoweb_ui(ctx, output_file, query_parameters))


@cli.command()
@click.pass_context
def populate_db(
    ctx: click.core.Context,
):
    data_dir = ctx.obj["data_dir"]
    click.echo(f"Populating the database with data from {data_dir}")
    repository = ListingRepository(engine=engine)
    listings = Listing.get_all_listings(
        [path for path in pathlib.Path(data_dir).glob("*/listing.json")]
    )
    asyncio.run(repository.upsert_listings(listings))


if __name__ == "__main__":
    cli()