#!/bin/bash
# Shannon CLI - AI Penetration Testing Framework

set -e

# Prevent MSYS from converting Unix paths (e.g. /repos/my-repo) to Windows paths
case "$OSTYPE" in
  msys*) export MSYS_NO_PATHCONV=1 ;;
esac

# Detect Podman vs Docker and set compose files accordingly
# Podman doesn't support host-gateway, so we only include the Docker override for actual Docker
COMPOSE_BASE="docker-compose.yml"
if command -v podman &>/dev/null; then
  # Podman detected (either native or via Docker Desktop shim) - use base config only
  COMPOSE_OVERRIDE=""
else
  # Docker detected - include extra_hosts override for Linux localhost access
  COMPOSE_OVERRIDE="-f docker-compose.docker.yml"
fi
COMPOSE_FILE="$COMPOSE_BASE"

# Load .env if present
if [ -f .env ]; then
  set -a
  source .env
  set +a
fi

show_help() {
  cat << 'EOF'

  ███████╗██╗  ██╗ █████╗ ███╗   ██╗███╗   ██╗ ██████╗ ███╗   ██╗
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  ╚════██║██╔══██║██╔══██║██║╚██╗██║██║╚██╗██║██║   ██║██║╚██╗██║
  ███████║██║  ██║██║  ██║██║ ╚████║██║ ╚████║╚██████╔╝██║ ╚████║
  ╚══════╝╚═╝  ╚═╝╚═╝  ╚═╝╚═╝  ╚═══╝╚═╝  ╚═══╝ ╚═════╝ ╚═╝  ╚═══╝

           AI Penetration Testing Framework

Usage:
  ./shannon start URL=<url> REPO=<name>   Start a pentest workflow
  ./shannon workspaces                    List all workspaces
  ./shannon logs ID=<workflow-id>         Tail logs for a specific workflow
  ./shannon stop                          Stop all containers
  ./shannon help                          Show this help message

Options for 'start':
  REPO=<name>            Folder name under ./repos/ (e.g. REPO=repo-name)
  CONFIG=<path>          Configuration file (YAML)
  OUTPUT=<path>          Output directory for reports (default: ./audit-logs/)
  WORKSPACE=<name>       Named workspace (auto-resumes if exists, creates if new)
  PIPELINE_TESTING=true  Use minimal prompts for fast testing
  ROUTER=true            Route requests through claude-code-router (multi-model support)

Options for 'stop':
  CLEAN=true             Remove all data including volumes

Examples:
  ./shannon start URL=https://example.com REPO=repo-name
  ./shannon start URL=https://example.com REPO=repo-name WORKSPACE=q1-audit
  ./shannon start URL=https://example.com REPO=repo-name CONFIG=./config.yaml
  ./shannon start URL=https://example.com REPO=repo-name OUTPUT=./my-reports
  ./shannon workspaces
  ./shannon logs ID=example.com_shannon-1234567890
  ./shannon stop CLEAN=true

Monitor workflows at http://localhost:8233
EOF
}

# Parse KEY=value arguments into variables
parse_args() {
  for arg in "$@"; do
    case "$arg" in
      URL=*) URL="${arg#URL=}" ;;
      REPO=*) REPO="${arg#REPO=}" ;;
      CONFIG=*) CONFIG="${arg#CONFIG=}" ;;
      OUTPUT=*) OUTPUT="${arg#OUTPUT=}" ;;
      ID=*) ID="${arg#ID=}" ;;
      CLEAN=*) CLEAN="${arg#CLEAN=}" ;;
      PIPELINE_TESTING=*) PIPELINE_TESTING="${arg#PIPELINE_TESTING=}" ;;
      REBUILD=*) REBUILD="${arg#REBUILD=}" ;;
      ROUTER=*) ROUTER="${arg#ROUTER=}" ;;
      WORKSPACE=*) WORKSPACE="${arg#WORKSPACE=}" ;;
    esac
  done
}

# Check if Temporal is running and healthy
is_temporal_ready() {
  docker compose -f "$COMPOSE_FILE" $COMPOSE_OVERRIDE exec -T temporal \
    temporal operator cluster health --address localhost:7233 2>/dev/null | grep -q "SERVING"
}

# Ensure containers are running with correct mounts
ensure_containers() {
  # If custom OUTPUT_DIR is set, always refresh worker to ensure correct volume mount
  # Docker compose will only recreate if the mount actually changed
  if [ -n "$OUTPUT_DIR" ]; then
    echo "Ensuring worker has correct output mount..."
    docker compose -f "$COMPOSE_FILE" $COMPOSE_OVERRIDE up -d worker 2>/dev/null || true
  fi

  # Quick check: if Temporal is already healthy, we're good
  if is_temporal_ready; then
    return 0
  fi

  # Need to start containers
  echo "Starting Shannon containers..."
  if [ "$REBUILD" = "true" ]; then
    # Force rebuild without cache (use when code changes aren't being picked up)
    echo "Rebuilding with --no-cache..."
    docker compose -f "$COMPOSE_FILE" $COMPOSE_OVERRIDE build --no-cache worker
  fi
  docker compose -f "$COMPOSE_FILE" $COMPOSE_OVERRIDE up -d --build

  # Wait for Temporal to be ready
  echo "Waiting for Temporal to be ready..."
  for i in $(seq 1 30); do
    if is_temporal_ready; then
      echo "Temporal is ready!"
      return 0
    fi
    if [ "$i" -eq 30 ]; then
      echo "Timeout waiting for Temporal"
      exit 1
    fi
    sleep 2
  done
}

cmd_start() {
  parse_args "$@"

  # Validate required vars
  if [ -z "$URL" ] || [ -z "$REPO" ]; then
    echo "ERROR: URL and REPO are required"
    echo "Usage: ./shannon start URL=<url> REPO=<name>"
    exit 1
  fi

  # Check for API key (router mode can use alternative provider API keys)
  if [ -z "$ANTHROPIC_API_KEY" ] && [ -z "$CLAUDE_CODE_OAUTH_TOKEN" ]; then
    if [ "$ROUTER" = "true" ] && { [ -n "$OPENAI_API_KEY" ] || [ -n "$OPENROUTER_API_KEY" ]; }; then
      # Router mode with alternative provider - set a placeholder for SDK init
      export ANTHROPIC_API_KEY="router-mode"
    else
      echo "ERROR: Set ANTHROPIC_API_KEY or CLAUDE_CODE_OAUTH_TOKEN in .env"
      echo "       (or use ROUTER=true with OPENAI_API_KEY or OPENROUTER_API_KEY)"
      exit 1
    fi
  fi

  # Determine container path for REPO
  # - If REPO is already a container path (/benchmarks/*, /repos/*), use as-is
  # - Otherwise, treat as a folder name under ./repos/ (mounted at /repos in container)
  case "$REPO" in
    /benchmarks/*|/repos/*)
      CONTAINER_REPO="$REPO"
      ;;
    *)
      if [ ! -d "./repos/$REPO" ]; then
        echo "ERROR: Repository not found at ./repos/$REPO"
        echo ""
        echo "Place your target repository under the ./repos/ directory"
        exit 1
      fi
      CONTAINER_REPO="/repos/$REPO"
      ;;
  esac

  # Handle custom OUTPUT directory
  # Export OUTPUT_DIR for docker-compose volume mount BEFORE starting containers
  if [ -n "$OUTPUT" ]; then
    # Create output directory with write permissions for container user (UID 1001)
    mkdir -p "$OUTPUT"
    chmod 777 "$OUTPUT"
    export OUTPUT_DIR="$OUTPUT"
  fi

  # Handle ROUTER flag - start claude-code-router for multi-model support
  if [ "$ROUTER" = "true" ]; then
    # Check if router is already running
    if docker compose -f "$COMPOSE_FILE" $COMPOSE_OVERRIDE --profile router ps router 2>/dev/null | grep -q "running"; then
      echo "Router already running, skipping startup..."
    else
      echo "Starting claude-code-router..."

      # Check for provider API keys
      if [ -z "$OPENAI_API_KEY" ] && [ -z "$OPENROUTER_API_KEY" ]; then
        echo "WARNING: No provider API key set (OPENAI_API_KEY or OPENROUTER_API_KEY). Router may not work."
      fi

      # Start router with profile
      docker compose -f "$COMPOSE_FILE" $COMPOSE_OVERRIDE --profile router up -d router

      # Give router a few seconds to start (health check disabled for now - TODO: debug later)
      echo "Waiting for router to start..."
      sleep 5
    fi

    # Set ANTHROPIC_BASE_URL to route through router
    export ANTHROPIC_BASE_URL="http://router:3456"
    # Set auth token to match router's APIKEY
    export ANTHROPIC_AUTH_TOKEN="shannon-router-key"
  fi

  # Ensure audit-logs directory exists with write permissions for container user (UID 1001)
  mkdir -p ./audit-logs
  chmod 777 ./audit-logs

  # Ensure repo deliverables directory is writable by container user (UID 1001)
  if [ -d "./repos/$REPO" ]; then
    mkdir -p "./repos/$REPO/deliverables"
    chmod 777 "./repos/$REPO/deliverables"
  fi

  # Ensure containers are running (starts them if needed)
  ensure_containers

  # Build optional args
  ARGS=""
  [ -n "$CONFIG" ] && ARGS="$ARGS --config $CONFIG"

  # Pass container path for output (where OUTPUT_DIR is mounted)
  # Also pass display path so client can show the host path to user
  if [ -n "$OUTPUT" ]; then
    ARGS="$ARGS --output /app/output --display-output $OUTPUT"
  fi

  [ "$PIPELINE_TESTING" = "true" ] && ARGS="$ARGS --pipeline-testing"
  [ -n "$WORKSPACE" ] && ARGS="$ARGS --workspace $WORKSPACE"

  # Run the client to submit workflow
  docker compose -f "$COMPOSE_FILE" $COMPOSE_OVERRIDE exec -T worker \
    node dist/temporal/client.js "$URL" "$CONTAINER_REPO" $ARGS
}

cmd_logs() {
  parse_args "$@"

  if [ -z "$ID" ]; then
    echo "ERROR: ID is required"
    echo "Usage: ./shannon logs ID=<workflow-id>"
    exit 1
  fi

  # Auto-discover the workflow log file
  # 1. Check default location first
  # 2. Search common output directories
  # 3. Fall back to find command
  WORKFLOW_LOG=""

  if [ -f "./audit-logs/${ID}/workflow.log" ]; then
    WORKFLOW_LOG="./audit-logs/${ID}/workflow.log"
  else
    # For resume workflow IDs (e.g. workspace_resume_123), check the original workspace
    WORKSPACE_ID="${ID%%_resume_*}"
    if [ "$WORKSPACE_ID" != "$ID" ] && [ -f "./audit-logs/${WORKSPACE_ID}/workflow.log" ]; then
      WORKFLOW_LOG="./audit-logs/${WORKSPACE_ID}/workflow.log"
    fi

    # For named workspace IDs (e.g. workspace_shannon-123), check the workspace name
    if [ -z "$WORKFLOW_LOG" ]; then
      WORKSPACE_ID="${ID%%_shannon-*}"
      if [ "$WORKSPACE_ID" != "$ID" ] && [ -f "./audit-logs/${WORKSPACE_ID}/workflow.log" ]; then
        WORKFLOW_LOG="./audit-logs/${WORKSPACE_ID}/workflow.log"
      fi
    fi

    if [ -z "$WORKFLOW_LOG" ]; then
      # Search for the workflow directory (handles custom OUTPUT paths)
      FOUND=$(find . -maxdepth 3 -path "*/${ID}/workflow.log" -type f 2>/dev/null | head -1)
      if [ -n "$FOUND" ]; then
        WORKFLOW_LOG="$FOUND"
      fi
    fi
  fi

  if [ -n "$WORKFLOW_LOG" ]; then
    echo "Tailing workflow log: $WORKFLOW_LOG"
    tail -f "$WORKFLOW_LOG"
  else
    echo "ERROR: Workflow log not found for ID: $ID"
    echo ""
    echo "Possible causes:"
    echo "  - Workflow hasn't started yet"
    echo "  - Workflow ID is incorrect"
    echo ""
    echo "Check the Temporal Web UI at http://localhost:8233 for workflow details"
    exit 1
  fi
}

cmd_workspaces() {
  # Ensure containers are running (need worker to execute node)
  ensure_containers

  docker compose -f "$COMPOSE_FILE" $COMPOSE_OVERRIDE exec -T worker \
    node dist/temporal/workspaces.js
}

cmd_stop() {
  parse_args "$@"

  if [ "$CLEAN" = "true" ]; then
    docker compose -f "$COMPOSE_FILE" $COMPOSE_OVERRIDE --profile router down -v
  else
    docker compose -f "$COMPOSE_FILE" $COMPOSE_OVERRIDE --profile router down
  fi
}

# Main command dispatch
case "${1:-help}" in
  start)
    shift
    cmd_start "$@"
    ;;
  logs)
    shift
    cmd_logs "$@"
    ;;
  workspaces)
    shift
    cmd_workspaces
    ;;
  stop)
    shift
    cmd_stop "$@"
    ;;
  help|--help|-h|*)
    show_help
    ;;
esac