from __future__ import annotations

import logging
import re
import sys
from typing import Any, Optional

import click
import yaml
from rich.padding import Padding
from rich.rule import Rule
from rich.tree import Tree

from unshackle.commands.dl import dl
from unshackle.core import binaries
from unshackle.core.config import config
from unshackle.core.console import console
from unshackle.core.constants import context_settings
from unshackle.core.proxies import Basic, Hola, NordVPN, SurfsharkVPN
from unshackle.core.service import Service
from unshackle.core.services import Services
from unshackle.core.utils.click_types import ContextData
from unshackle.core.utils.collections import merge_dict


@click.command(
    short_help="Search for titles from a Service.",
    cls=Services,
    context_settings=dict(**context_settings, token_normalize_func=Services.get_tag),
)
@click.option(
    "-p", "--profile", type=str, default=None, help="Profile to use for Credentials and Cookies (if available)."
)
@click.option(
    "--proxy",
    type=str,
    default=None,
    help="Proxy URI to use. If a 2-letter country is provided, it will try get a proxy from the config.",
)
@click.option("--no-proxy", is_flag=True, default=False, help="Force disable all proxy use.")
@click.pass_context
def search(ctx: click.Context, no_proxy: bool, profile: Optional[str] = None, proxy: Optional[str] = None):
    if not ctx.invoked_subcommand:
        raise ValueError("A subcommand to invoke was not specified, the main code cannot continue.")

    log = logging.getLogger("search")

    service = Services.get_tag(ctx.invoked_subcommand)
    profile = profile

    if profile:
        log.info(f"Using profile: '{profile}'")

    with console.status("Loading Service Config...", spinner="dots"):
        service_config_path = Services.get_path(service) / config.filenames.config
        if service_config_path.exists():
            service_config = yaml.safe_load(service_config_path.read_text(encoding="utf8"))
            log.info("Service Config loaded")
        else:
            service_config = {}
        merge_dict(config.services.get(service), service_config)

    proxy_providers = []
    if no_proxy:
        ctx.params["proxy"] = None
    else:
        with console.status("Loading Proxy Providers...", spinner="dots"):
            if config.proxy_providers.get("basic"):
                proxy_providers.append(Basic(**config.proxy_providers["basic"]))
            if config.proxy_providers.get("nordvpn"):
                proxy_providers.append(NordVPN(**config.proxy_providers["nordvpn"]))
            if config.proxy_providers.get("surfsharkvpn"):
                proxy_providers.append(SurfsharkVPN(**config.proxy_providers["surfsharkvpn"]))
            if binaries.HolaProxy:
                proxy_providers.append(Hola())
            for proxy_provider in proxy_providers:
                log.info(f"Loaded {proxy_provider.__class__.__name__}: {proxy_provider}")

        if proxy:
            requested_provider = None
            if re.match(r"^[a-z]+:.+$", proxy, re.IGNORECASE):
                # requesting proxy from a specific proxy provider
                requested_provider, proxy = proxy.split(":", maxsplit=1)
            if re.match(r"^[a-z]{2}(?:\d+)?$", proxy, re.IGNORECASE):
                proxy = proxy.lower()
                with console.status(f"Getting a Proxy to {proxy}...", spinner="dots"):
                    if requested_provider:
                        proxy_provider = next(
                            (x for x in proxy_providers if x.__class__.__name__.lower() == requested_provider), None
                        )
                        if not proxy_provider:
                            log.error(f"The proxy provider '{requested_provider}' was not recognised.")
                            sys.exit(1)
                        proxy_uri = proxy_provider.get_proxy(proxy)
                        if not proxy_uri:
                            log.error(f"The proxy provider {requested_provider} had no proxy for {proxy}")
                            sys.exit(1)
                        proxy = ctx.params["proxy"] = proxy_uri
                        log.info(f"Using {proxy_provider.__class__.__name__} Proxy: {proxy}")
                    else:
                        for proxy_provider in proxy_providers:
                            proxy_uri = proxy_provider.get_proxy(proxy)
                            if proxy_uri:
                                proxy = ctx.params["proxy"] = proxy_uri
                                log.info(f"Using {proxy_provider.__class__.__name__} Proxy: {proxy}")
                                break
            else:
                log.info(f"Using explicit Proxy: {proxy}")

    ctx.obj = ContextData(config=service_config, cdm=None, proxy_providers=proxy_providers, profile=profile)


@search.result_callback()
def result(service: Service, profile: Optional[str] = None, **_: Any) -> None:
    log = logging.getLogger("search")

    service_tag = service.__class__.__name__

    with console.status("Authenticating with Service...", spinner="dots"):
        cookies = dl.get_cookie_jar(service_tag, profile)
        credential = dl.get_credentials(service_tag, profile)
        service.authenticate(cookies, credential)
        if cookies or credential:
            log.info("Authenticated with Service")

    search_results = Tree("Search Results", hide_root=True)
    with console.status("Searching...", spinner="dots"):
        for result in service.search():
            result_text = f"[bold text]{result.title}[/]"
            if result.url:
                result_text = f"[link={result.url}]{result_text}[/link]"
            if result.label:
                result_text += f"  [pink]{result.label}[/]"
            if result.description:
                result_text += f"\n[text2]{result.description}[/]"
            result_text += f"\n[bright_black]id: {result.id}[/]"
            search_results.add(result_text + "\n")

    # update cookies
    cookie_file = dl.get_cookie_path(service_tag, profile)
    if cookie_file:
        dl.save_cookies(cookie_file, service.session.cookies)

    console.print(Padding(Rule(f"[rule.text]{len(search_results.children)} Search Results"), (1, 2)))

    if search_results.children:
        console.print(Padding(search_results, (0, 5)))
    else:
        console.print(
            Padding("[bold text]No matches[/]\n[bright_black]Please check spelling and search again....[/]", (0, 5))
        )