from __future__ import annotations

from flask import Blueprint, jsonify, request

from app.services.fuel_conversion import convert_value, list_fuel_factors


api_bp = Blueprint("api", __name__, url_prefix="/api/v1")


@api_bp.get("/health")
def health() -> tuple[str, int] | tuple[dict[str, str], int] | object:
    return jsonify({"status": "ok", "service": "ksp-data-hangar"})


@api_bp.get("/fuel-converter/fuels")
def fuel_factors() -> object:
    return jsonify({"fuels": list_fuel_factors()})


@api_bp.route("/fuel-converter/convert", methods=["GET", "POST"])
def convert_fuel() -> object:
    payload = request.get_json(silent=True) or request.args
    mode = payload.get("mode", "")
    value = payload.get("value")

    try:
        result = convert_value(mode=mode, raw_value=value)
    except ValueError as exc:
        return jsonify({"error": str(exc)}), 400

    return jsonify(result)