"""Main routes for the application."""

from datetime import datetime, timedelta
from zoneinfo import ZoneInfo

from flask import Blueprint, request
from sqlalchemy import desc, func

from app.database import db
from app.models.playlist import Playlist
from app.models.sound import Sound
from app.models.sound_played import SoundPlayed
from app.models.user import User
from app.services.decorators import require_auth

bp = Blueprint("main", __name__)


@bp.route("/health")
def health() -> dict[str, str]:
    """Health check endpoint."""
    return {"status": "ok"}


def get_period_filter(period: str) -> datetime | None:
    """Get the start date for the specified period."""
    now = datetime.now(tz=ZoneInfo("UTC"))

    if period == "today":
        return now.replace(hour=0, minute=0, second=0, microsecond=0)
    if period == "week":
        return now - timedelta(days=7)
    if period == "month":
        return now - timedelta(days=30)
    if period == "year":
        return now - timedelta(days=365)
    if period == "all":
        return None
    # Default to all time
    return None


@bp.route("/dashboard/stats")
@require_auth
def dashboard_stats() -> dict:
    """Get dashboard statistics."""
    # Count soundboard sounds (type = SDB)
    soundboard_count = Sound.query.filter_by(type="SDB").count()

    # Count tracks (type = STR)
    track_count = Sound.query.filter_by(type="STR").count()

    # Count playlists
    playlist_count = Playlist.query.count()

    # Calculate total size of all sounds (original + normalized)
    total_size_result = db.session.query(
        func.sum(Sound.size).label("original_size"),
        func.sum(Sound.normalized_size).label("normalized_size"),
    ).first()

    original_size = getattr(total_size_result, "original_size", 0) or 0
    normalized_size = getattr(total_size_result, "normalized_size", 0) or 0
    total_size = original_size + normalized_size

    return {
        "soundboard_sounds": soundboard_count,
        "tracks": track_count,
        "playlists": playlist_count,
        "total_size": total_size,
        "original_size": original_size,
        "normalized_size": normalized_size,
    }


@bp.route("/dashboard/top-sounds")
@require_auth
def top_sounds() -> dict:
    """Get top played sounds for a specific period."""
    period = request.args.get("period", "all")
    limit = int(request.args.get("limit", 5))

    period_start = get_period_filter(period)

    # Base query for soundboard sounds with play counts
    query = (
        db.session.query(
            Sound.id,
            Sound.name,
            Sound.filename,
            Sound.thumbnail,
            Sound.type,
            func.count(SoundPlayed.id).label("play_count"),
        )
        .outerjoin(SoundPlayed, Sound.id == SoundPlayed.sound_id)
        .filter(Sound.type == "SDB")  # Only soundboard sounds
        .group_by(
            Sound.id,
            Sound.name,
            Sound.filename,
            Sound.thumbnail,
            Sound.type,
        )
    )

    # Apply period filter if specified
    if period_start:
        query = query.filter(SoundPlayed.played_at >= period_start)

    # Order by play count and limit results
    results = query.order_by(desc("play_count")).limit(limit).all()

    # Convert to list of dictionaries
    top_sounds_list = [
        {
            "id": result.id,
            "name": result.name,
            "filename": result.filename,
            "thumbnail": result.thumbnail,
            "type": result.type,
            "play_count": result.play_count,
        }
        for result in results
    ]

    return {
        "period": period,
        "sounds": top_sounds_list,
    }


@bp.route("/dashboard/top-tracks")
@require_auth
def top_tracks() -> dict:
    """Get top played tracks for a specific period."""
    period = request.args.get("period", "all")
    limit = int(request.args.get("limit", 10))

    period_start = get_period_filter(period)

    # Base query for tracks with play counts
    query = (
        db.session.query(
            Sound.id,
            Sound.name,
            Sound.filename,
            Sound.thumbnail,
            Sound.type,
            func.count(SoundPlayed.id).label("play_count"),
        )
        .outerjoin(SoundPlayed, Sound.id == SoundPlayed.sound_id)
        .filter(Sound.type == "STR")  # Only tracks
        .group_by(
            Sound.id,
            Sound.name,
            Sound.filename,
            Sound.thumbnail,
            Sound.type,
        )
    )

    # Apply period filter if specified
    if period_start:
        query = query.filter(SoundPlayed.played_at >= period_start)

    # Order by play count and limit results
    results = query.order_by(desc("play_count")).limit(limit).all()

    # Convert to list of dictionaries
    top_tracks_list = [
        {
            "id": result.id,
            "name": result.name,
            "filename": result.filename,
            "thumbnail": result.thumbnail,
            "type": result.type,
            "play_count": result.play_count,
        }
        for result in results
    ]

    return {
        "period": period,
        "tracks": top_tracks_list,
    }


@bp.route("/dashboard/top-users")
@require_auth
def top_users() -> dict:
    """Get top users by play count for a specific period."""
    period = request.args.get("period", "all")
    limit = int(request.args.get("limit", 10))

    period_start = get_period_filter(period)

    # Base query for users with play counts
    query = (
        db.session.query(
            User.id,
            User.name,
            User.email,
            User.picture,
            func.count(SoundPlayed.id).label("play_count"),
        )
        .outerjoin(SoundPlayed, User.id == SoundPlayed.user_id)
        .group_by(User.id, User.name, User.email, User.picture)
    )

    # Apply period filter if specified
    if period_start:
        query = query.filter(SoundPlayed.played_at >= period_start)

    # Order by play count and limit results
    results = query.order_by(desc("play_count")).limit(limit).all()

    # Convert to list of dictionaries
    top_users_list = [
        {
            "id": result.id,
            "name": result.name,
            "email": result.email,
            "picture": result.picture,
            "play_count": result.play_count,
        }
        for result in results
    ]

    return {
        "period": period,
        "users": top_users_list,
    }