#!/usr/bin/env python3
"""One transaction, one insights call, assert 200s -- phase-0-base-project-spec.md §12."""
import json
import os
import sys
import urllib.request

import psycopg

GATEWAY_URL = os.environ.get("GATEWAY_URL", "http://localhost:8000")
DSN = os.environ.get("POSTGRES_DSN", "postgresql://ledgerline:ledgerline@localhost:5432/ledgerline")


def _get(url):
    with urllib.request.urlopen(url, timeout=10) as resp:
        return resp.status, json.loads(resp.read())


def _post(url, payload):
    data = json.dumps(payload).encode()
    req = urllib.request.Request(url, data=data, headers={"Content-Type": "application/json"}, method="POST")
    try:
        with urllib.request.urlopen(req, timeout=10) as resp:
            return resp.status, json.loads(resp.read())
    except urllib.error.HTTPError as exc:
        return exc.code, json.loads(exc.read())


def main():
    with psycopg.connect(DSN, autocommit=True) as conn:
        with conn.cursor() as cur:
            cur.execute("SELECT data FROM seed_manifest LIMIT 1")
            row = cur.fetchone()
    if not row:
        print("smoke: no seed manifest found -- run `make seed` first", file=sys.stderr)
        sys.exit(1)
    account_id = row[0]["clean_account_id"]

    status, body = _post(
        f"{GATEWAY_URL}/api/transactions",
        {
            "account_id": account_id,
            "kind": "deposit",
            "amount_minor": 500,
            "currency": "EUR",
            "merchant_name": "Smoke Test Merchant",
        },
    )
    assert status == 201, f"transaction failed: {status} {body}"
    print(f"transaction ok: {body['transaction_id']} status={body['status']}")

    status, body = _get(f"{GATEWAY_URL}/api/accounts/{account_id}/insights")
    assert status == 200, f"insights failed: {status} {body}"
    print(f"insights ok: {body}")

    print("smoke test passed")


if __name__ == "__main__":
    main()