from flask import Blueprint, render_template, current_app, request, flash, redirect, url_for
from .models import ScheduleConfig, VolumeConfig
from .db import db

bp = Blueprint('main', __name__)


@bp.route("/")
def index():
    return render_template("index.html")


@bp.route("/upload", methods=["GET", "POST"])
def upload():
    if request.method == "POST":
        # CSV upload logic here
        pass
    return render_template("upload.html")


@bp.route("/papers")
def papers():
    return render_template("papers.html", app_title="PaperScraper")


@bp.route("/schedule", methods=["GET", "POST"])
def schedule():
    if request.method == "POST":
        try:
            # Check if we're updating volume or schedule
            if 'total_volume' in request.form:
                # Volume update
                try:
                    new_volume = float(request.form.get('total_volume', 0))
                    if new_volume <= 0 or new_volume > 1000:
                        raise ValueError("Volume must be between 1 and 1000")

                    volume_config = VolumeConfig.query.first()
                    if not volume_config:
                        volume_config = VolumeConfig(volume=new_volume)
                        db.session.add(volume_config)
                    else:
                        volume_config.volume = new_volume

                    db.session.commit()
                    flash("Volume updated successfully!", "success")

                except ValueError as e:
                    db.session.rollback()
                    flash(f"Error updating volume: {str(e)}", "error")
            else:
                # Schedule update logic
                # Validate form data
                for hour in range(24):
                    key = f"hour_{hour}"
                    if key not in request.form:
                        raise ValueError(f"Missing data for hour {hour}")

                    try:
                        weight = float(request.form.get(key, 0))
                        if weight < 0 or weight > 5:
                            raise ValueError(
                                f"Weight for hour {hour} must be between 0 and 5")
                    except ValueError:
                        raise ValueError(f"Invalid weight value for hour {hour}")

                # Update database if validation passes
                for hour in range(24):
                    key = f"hour_{hour}"
                    weight = float(request.form.get(key, 0))
                    config = ScheduleConfig.query.get(hour)
                    if config:
                        config.weight = weight
                    else:
                        db.session.add(ScheduleConfig(hour=hour, weight=weight))

                db.session.commit()
                flash("Schedule updated successfully!", "success")

        except ValueError as e:
            db.session.rollback()
            flash(f"Error updating schedule: {str(e)}", "error")

    schedule = {sc.hour: sc.weight for sc in ScheduleConfig.query.order_by(
        ScheduleConfig.hour).all()}
    volume = VolumeConfig.query.first()
    return render_template("schedule.html", schedule=schedule, volume=volume.volume, app_title="PaperScraper")


@bp.route("/logs")
def logs():
    return render_template("logs.html", app_title="PaperScraper")


@bp.route("/about")
def about():
    return render_template("about.html", app_title="PaperScraper")