#!/usr/bin/env bash
set -euo pipefail

F="/opt/hx-ki/com2-stack/docker-compose.yml"
[ -f "$F" ] || { echo "FEHLT: $F"; exit 1; }

echo "=== COM2: FIX MAUTIC DB SERVICE REF (deterministisch) ==="

python3 - <<'PY'
from pathlib import Path
import re

p = Path("/opt/hx-ki/com2-stack/docker-compose.yml")
s = p.read_text()

# 1) Services auf Top-Level unter "services:" einsammeln (2-space indentation)
m = re.search(r'(?ms)^services:\s*\n(.*?)(?=^\S|\Z)', s)
if not m:
    raise SystemExit("FEHLT: Top-Level 'services:' Block")

services_block = m.group(1)
service_names = re.findall(r'(?m)^\s{2}([A-Za-z0-9_.-]+):\s*$', services_block)

print("[A] Gefundene Services:", ", ".join(service_names) if service_names else "KEINE?!")

# 2) Kandidaten für MariaDB finden
candidates = [n for n in service_names if "mariadb" in n.lower() or n.lower() in ("db","mysql")]
if not candidates:
    raise SystemExit("FEHLT: Kein DB-Service gefunden (mariadb/db/mysql). Du musst den DB-Service im Compose haben.")

db_service = candidates[0]
print("[B] DB-Service gewählt:", db_service)

# 3) Mautic-Block finden
ma = re.search(r'(?ms)^\s{2}mautic:\s*\n(.*?)(?=^\s{2}[A-Za-z0-9_.-]+:\s*$|\Z)', services_block)
if not ma:
    raise SystemExit("FEHLT: Service 'mautic' existiert nicht im Compose.")

mautic_block = ma.group(0)

# 4) depends_on im mautic-Block patchen:
# - mapping style:
#     depends_on:
#       hxki-mariadb:
#         condition: service_started
# - list style:
#     depends_on:
#       - hxki-mariadb
def patch_depends_on(block: str, db_service: str) -> str:
    # mapping key ersetzen: "    <something>:" direkt unter depends_on
    block = re.sub(
        r'(?ms)(^\s{4}depends_on:\s*\n)(?:^\s{6}[A-Za-z0-9_.-]+:\s*\n(?:^\s{8}.*\n)*)',
        lambda m: m.group(1) + f"      {db_service}:\n        condition: service_started\n",
        block,
        count=1
    )
    # list style: "- <something>" unter depends_on
    block = re.sub(
        r'(?ms)(^\s{4}depends_on:\s*\n)(?:^\s{6}-\s*[A-Za-z0-9_.-]+\s*\n)+',
        lambda m: m.group(1) + f"      - {db_service}\n",
        block,
        count=1
    )
    return block

patched = patch_depends_on(mautic_block, db_service)

# 5) Optional: MAUTIC_DB_HOST/DB_HOST im mautic env patchen (nur wenn vorhanden)
patched = re.sub(r'(?m)^(\s{6}(MAUTIC_DB_HOST|DB_HOST|MYSQL_HOST)\s*:\s*).*$',
                 rf'\1{db_service}', patched)

# 6) Compose wieder zusammensetzen
services_block_new = services_block.replace(mautic_block, patched)
s_new = s[:m.start(1)] + services_block_new + s[m.end(1):]
p.write_text(s_new)

print("[C] OK: mautic referenziert jetzt DB-Service:", db_service)
PY

echo "[D] VALIDATE"
docker compose -f "$F" config >/dev/null
echo "OK: Compose valide."

echo "=== ENDE ==="