"""Flask app: status/preview page + one settings form per screen + rotation settings."""

import requests
from flask import Flask, redirect, render_template, request, url_for


def create_app(config, screens: dict, scheduler) -> Flask:
    app = Flask(__name__)

    @app.route("/")
    def index():
        status = scheduler.get_status()
        return render_template(
            "index.html",
            status=status,
            screens=screens,
            rotation=config.get_rotation(),
            navidrome_priority=config.get_navidrome_priority(),
        )

    @app.route("/actions/refresh", methods=["POST"])
    def refresh_now():
        scheduler.request_manual_refresh()
        return redirect(url_for("index"))

    @app.route("/actions/switch/<screen_id>", methods=["POST"])
    def switch_now(screen_id):
        if screen_id in screens:
            scheduler.request_switch(screen_id)
        return redirect(url_for("index"))

    @app.route("/settings/navidrome", methods=["GET", "POST"])
    def settings_navidrome():
        if request.method == "POST":
            config.update_screen_settings("navidrome", {
                "url": request.form.get("url", "").strip(),
                "username": request.form.get("username", "").strip(),
                "password": request.form.get("password", ""),
                "filter_user": request.form.get("filter_user", "").strip(),
                "show_progress": "show_progress" in request.form,
                "show_genre": "show_genre" in request.form,
                "show_source": "show_source" in request.form,
                "boost_cover": "boost_cover" in request.form,
                "grayscale_cover": "grayscale_cover" in request.form,
            })
            return redirect(url_for("settings_navidrome", saved=1))
        return render_template("settings_navidrome.html", settings=config.get_screen_settings("navidrome"))

    @app.route("/settings/weather", methods=["GET", "POST"])
    def settings_weather():
        error = None
        if request.method == "POST":
            city = request.form.get("city", "").strip()
            lat_raw = request.form.get("latitude", "").strip()
            lon_raw = request.form.get("longitude", "").strip()

            if city:
                try:
                    result = screens["weather"].geocode(city)
                except requests.exceptions.RequestException:
                    result = None
                if result is None:
                    error = f'Could not find "{city}" -- try a different spelling, or fill in coordinates manually below instead.'
                else:
                    config.update_screen_settings("weather", {
                        "city": result["label"],
                        "latitude": result["latitude"],
                        "longitude": result["longitude"],
                    })
                    return redirect(url_for("settings_weather", saved=1))
            else:
                config.update_screen_settings("weather", {
                    "city": "",
                    "latitude": float(lat_raw) if lat_raw else None,
                    "longitude": float(lon_raw) if lon_raw else None,
                })
                return redirect(url_for("settings_weather", saved=1))

        return render_template("settings_weather.html", settings=config.get_screen_settings("weather"), error=error)

    @app.route("/settings/rotation", methods=["GET", "POST"])
    def settings_rotation():
        if request.method == "POST":
            raw = request.form.get("screens", "")
            selected = [s.strip() for s in raw.split(",") if s.strip() in screens]
            interval_minutes = int(request.form.get("interval_minutes", 5) or 5)
            enabled = "rotation_enabled" in request.form
            config.set_rotation(selected, interval_minutes, enabled)
            config.set_navidrome_priority("navidrome_priority" in request.form)
            return redirect(url_for("settings_rotation", saved=1))
        return render_template(
            "settings_rotation.html",
            screens=screens,
            rotation=config.get_rotation(),
            navidrome_priority=config.get_navidrome_priority(),
        )

    return app