"""Wildlife journal blueprint — sighting log, stats, export."""

import csv
import io

from flask import Blueprint, Response, current_app, jsonify, render_template, request

wildlife_bp = Blueprint("wildlife", __name__, url_prefix="/wildlife")


def _engine():
    return current_app.config.get("DB_ENGINE")


@wildlife_bp.route("/")
def journal():
    return render_template("wildlife/journal.html")


@wildlife_bp.route("/api/sightings")
def sightings_api():
    engine = _engine()
    if engine is None:
        return jsonify({"sightings": []})
    from vigilar.storage.queries import get_wildlife_sightings_paginated
    sightings = get_wildlife_sightings_paginated(
        engine,
        species=request.args.get("species"),
        threat_level=request.args.get("threat_level"),
        camera_id=request.args.get("camera_id"),
        since_ts=request.args.get("since", type=float),
        until_ts=request.args.get("until", type=float),
        limit=min(request.args.get("limit", 50, type=int), 500),
        offset=request.args.get("offset", 0, type=int),
    )
    return jsonify({"sightings": sightings})


@wildlife_bp.route("/api/stats")
def stats_api():
    engine = _engine()
    if engine is None:
        return jsonify({"total": 0, "species_count": 0, "per_species": {}})
    from vigilar.storage.queries import get_wildlife_stats
    return jsonify(get_wildlife_stats(engine))


@wildlife_bp.route("/api/frequency")
def frequency_api():
    engine = _engine()
    if engine is None:
        return jsonify({})
    from vigilar.storage.queries import get_wildlife_frequency
    return jsonify(get_wildlife_frequency(engine))


@wildlife_bp.route("/api/export")
def export_csv():
    engine = _engine()
    if engine is None:
        return Response("No data", mimetype="text/csv")
    from vigilar.storage.queries import get_wildlife_sightings_paginated
    sightings = get_wildlife_sightings_paginated(engine, limit=10000, offset=0)
    output = io.StringIO()
    writer = csv.writer(output)
    writer.writerow(["id", "timestamp", "species", "threat_level", "camera_id",
                      "confidence", "temperature_c", "conditions"])
    for s in sightings:
        writer.writerow([s["id"], s["ts"], s["species"], s["threat_level"],
            s["camera_id"], s.get("confidence"), s.get("temperature_c"), s.get("conditions")])
    return Response(output.getvalue(), mimetype="text/csv",
        headers={"Content-Disposition": "attachment; filename=wildlife_sightings.csv"})