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

PROJECT_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"

stop_stale_api_processes() {
  local api_port="${HTTP_ADDR:-:8088}"
  api_port="${api_port##*:}"
  local api_cwd="${PROJECT_ROOT}/apps/api"

  if command -v pgrep >/dev/null 2>&1; then
    while read -r pid; do
      [[ -z "$pid" || "$pid" == "$$" ]] && continue
      local cwd
      cwd="$(lsof -a -p "$pid" -d cwd -Fn 2>/dev/null | awk '/^n/ {print substr($0, 2); exit}')"
      if [[ "$cwd" == "$api_cwd" ]]; then
        echo "[ai-gateway] stopping stale go-watch process: ${pid}"
        kill "$pid" 2>/dev/null || true
      fi
    done < <(pgrep -f "go-watch\\.mjs -- go run ./cmd/gateway" || true)
  fi

  if ! command -v lsof >/dev/null 2>&1; then
    return
  fi

  local pids
  pids="$(lsof -tiTCP:"$api_port" -sTCP:LISTEN 2>/dev/null || true)"
  [[ -z "$pids" ]] && return

  while read -r pid; do
    [[ -z "$pid" ]] && continue
    local cwd command
    cwd="$(lsof -a -p "$pid" -d cwd -Fn 2>/dev/null | awk '/^n/ {print substr($0, 2); exit}')"
    command="$(ps -p "$pid" -o command= 2>/dev/null || true)"
    if [[ "$cwd" == "$api_cwd" || "$command" == *"easyai-ai-gateway"* ]]; then
      echo "[ai-gateway] freeing API port ${api_port}, stopping stale process: ${pid}"
      kill "$pid" 2>/dev/null || true
    else
      echo "[ai-gateway] port ${api_port} is used by an unrelated process: ${pid} ${command}" >&2
      exit 1
    fi
  done <<< "$pids"

  sleep 0.5
}

if [[ -z "${AI_GATEWAY_PG_CONTAINER:-}" ]]; then
  if docker inspect easyai-pgvector >/dev/null 2>&1; then
    export AI_GATEWAY_PG_CONTAINER="easyai-pgvector"
  elif docker inspect postgres >/dev/null 2>&1; then
    export AI_GATEWAY_PG_CONTAINER="postgres"
  else
    export AI_GATEWAY_PG_CONTAINER="easyai-pgvector"
  fi
fi
export AI_GATEWAY_PG_USER="${AI_GATEWAY_PG_USER:-easyai}"
if [[ -z "${AI_GATEWAY_PG_PASSWORD:-}" ]] && docker inspect "$AI_GATEWAY_PG_CONTAINER" >/dev/null 2>&1; then
  AI_GATEWAY_PG_PASSWORD="$(
    docker inspect "$AI_GATEWAY_PG_CONTAINER" --format '{{range .Config.Env}}{{println .}}{{end}}' \
      | awk -F= '$1 == "POSTGRES_PASSWORD" {print $2; exit}'
  )"
  export AI_GATEWAY_PG_PASSWORD
fi
export AI_GATEWAY_PG_PASSWORD="${AI_GATEWAY_PG_PASSWORD:-easyai2025}"
export AI_GATEWAY_DATABASE_NAME="${AI_GATEWAY_DATABASE_NAME:-easyai_ai_gateway}"
export AI_GATEWAY_DATABASE_URL="${AI_GATEWAY_DATABASE_URL:-postgresql://${AI_GATEWAY_PG_USER}:${AI_GATEWAY_PG_PASSWORD}@localhost:5432/${AI_GATEWAY_DATABASE_NAME}?sslmode=disable}"

echo "[ai-gateway] using database: ${AI_GATEWAY_DATABASE_URL}"

scripts/create-database.sh
pnpm nx run api:migrate
stop_stale_api_processes
exec pnpm nx run-many -t dev -p api web --parallel=2