#!/usr/bin/env bash
# entrypoint.sh — container-startup
#
# Verantwoordelijkheden:
#   1. Schrijfbare dirs op de bind-mounts garanderen (UID/GID matching)
#   2. Health-server starten als achtergrondproces
#   3. gosu naar de agent-user en daemon-loop starten
#
# Loopt als root tot stap 3 — daarvoor hebben we root nodig om
# bind-mounts goed te zetten als de share met andere ownership is
# aangemaakt.

set -euo pipefail

log() { printf '[entrypoint] %s\n' "$*" >&2; }

: "${AGENT_UID:=1000}"
: "${AGENT_GID:=1000}"
: "${AGENT_STATE_DIR:=/var/run/agent}"
: "${AGENT_LOG_DIR:=/var/log/agent}"
: "${AGENT_REPO_CACHE:=/var/cache/repos}"
: "${AGENT_HEALTH_PORT:=8080}"

# ----- 1. dirs op bind-mounts -------------------------------------------
log "ensuring directories on bind-mounts"
mkdir -p \
    "${AGENT_STATE_DIR}" \
    "${AGENT_LOG_DIR}/runs" \
    "${AGENT_LOG_DIR}/jobs" \
    "${AGENT_REPO_CACHE}" \
    /var/cache/npm \
    /var/cache/pnpm

# Alleen ownership corrigeren als de share als andere user is aangemaakt
# — niet recursief op /var/cache/repos want dat kan groot zijn en de
# eerste boot vertragen.
chown "${AGENT_UID}:${AGENT_GID}" \
    "${AGENT_STATE_DIR}" \
    "${AGENT_LOG_DIR}" \
    "${AGENT_LOG_DIR}/runs" \
    "${AGENT_LOG_DIR}/jobs" \
    "${AGENT_REPO_CACHE}" \
    /var/cache/npm \
    /var/cache/pnpm 2>/dev/null || true

# ----- 2. health-server in de achtergrond -------------------------------
log "starting health-server on :${AGENT_HEALTH_PORT}"
gosu agent node /opt/agent/bin/health-server.js \
    > "${AGENT_LOG_DIR}/health-server.log" 2>&1 &
HEALTH_PID=$!
log "health-server pid=${HEALTH_PID}"

# Initial state: starting
gosu agent /bin/bash -c 'cat > "${AGENT_STATE_DIR}/state.json"' <<EOF
{
  "status": "starting",
  "startedAt": "$(date -u +%Y-%m-%dT%H:%M:%SZ)",
  "lastBatchAt": null,
  "lastBatchExit": null,
  "consecutiveFailures": 0
}
EOF

# ----- 3. drop privileges en start daemon-loop --------------------------
log "dropping to agent user and starting run-agent.sh"
exec gosu agent /opt/agent/bin/run-agent.sh