#!/bin/bash
# CLI Coverage Audit Script
# Compares API endpoints to CLI commands to ensure sync
# Usage: ./scripts/audit-cli-coverage.sh

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(dirname "$SCRIPT_DIR")"
API_DIR="${PROJECT_ROOT}/src/app/api"

RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m'

log_info() { echo -e "${GREEN}✓${NC} $1"; }
log_warn() { echo -e "${YELLOW}⚠${NC} $1"; }
log_error() { echo -e "${RED}✗${NC} $1"; }

echo "═══════════════════════════════════════════════════════════"
echo "  CLI Coverage Audit"
echo "═══════════════════════════════════════════════════════════"
echo ""

# Check if API directory exists
if [ ! -d "$API_DIR" ]; then
  log_error "API directory not found: $API_DIR"
  exit 1
fi

# Find all API route files
echo "📁 Scanning API routes in $API_DIR..."
echo ""

# Extract API endpoints from route.ts files
declare -a API_ENDPOINTS=()

while IFS= read -r -d '' route_file; do
  # Get the directory path relative to api/
  rel_path=$(dirname "$route_file" | sed "s|$API_DIR/||")
  
  # Check for HTTP methods in the file
  if grep -q "export async function GET" "$route_file"; then
    API_ENDPOINTS+=("GET /api/$rel_path")
  fi
  if grep -q "export async function POST" "$route_file"; then
    API_ENDPOINTS+=("POST /api/$rel_path")
  fi
  if grep -q "export async function PATCH" "$route_file"; then
    API_ENDPOINTS+=("PATCH /api/$rel_path")
  fi
  if grep -q "export async function DELETE" "$route_file"; then
    API_ENDPOINTS+=("DELETE /api/$rel_path")
  fi
  if grep -q "export async function PUT" "$route_file"; then
    API_ENDPOINTS+=("PUT /api/$rel_path")
  fi
done < <(find "$API_DIR" -name "route.ts" -print0)

# Sort and dedupe API endpoints
IFS=$'\n' API_ENDPOINTS=($(sort <<< "${API_ENDPOINTS[*]}"))
unset IFS

echo "Found ${#API_ENDPOINTS[@]} API endpoint(s):"
for endpoint in "${API_ENDPOINTS[@]}"; do
  echo "  • $endpoint"
done
echo ""

# Check CLI coverage
echo "🔍 Checking CLI coverage..."
echo ""

# Extract CLI commands from gantt.sh (or similar unified CLI)
CLI_FILE="${SCRIPT_DIR}/gantt.sh"
if [ ! -f "$CLI_FILE" ]; then
  log_warn "Unified CLI not found at $CLI_FILE"
  log_info "Checking for individual scripts..."
  
  # Look for any shell scripts
  CLI_SCRIPTS=($(find "$SCRIPT_DIR" -name "*.sh" -type f ! -name "audit-cli-coverage.sh" | sort))
  
  if [ ${#CLI_SCRIPTS[@]} -eq 0 ]; then
    log_error "No CLI scripts found!"
    exit 1
  fi
  
  echo "Found CLI scripts:"
  for script in "${CLI_SCRIPTS[@]}"; do
    echo "  • $(basename "$script")"
  done
fi

# Compare API to CLI coverage
echo ""
echo "═══════════════════════════════════════════════════════════"
echo "  Coverage Report"
echo "═══════════════════════════════════════════════════════════"
echo ""

# This is project-specific - customize based on your CLI structure
# For gantt-board, we check against known CLI commands

declare -A CLI_MAP=(
  ["GET /api/tasks"]='task list'
  ["POST /api/tasks"]='task create'
  ["DELETE /api/tasks"]='task delete'
  ["POST /api/tasks/natural"]='task natural'
)

MISSING=0
COVERED=0

for endpoint in "${API_ENDPOINTS[@]}"; do
  if [ -n "${CLI_MAP[$endpoint]}" ]; then
    log_info "$endpoint → ${CLI_MAP[$endpoint]}"
    ((COVERED++))
  else
    log_error "$endpoint → NO CLI COMMAND"
    ((MISSING++))
  fi
done

echo ""
echo "═══════════════════════════════════════════════════════════"
echo "  Summary"
echo "═══════════════════════════════════════════════════════════"
echo ""

if [ $MISSING -eq 0 ]; then
  log_info "All API endpoints have CLI coverage!"
  echo ""
  echo "  Total endpoints: ${#API_ENDPOINTS[@]}"
  echo "  Covered: $COVERED"
  echo "  Missing: $MISSING"
  echo ""
  exit 0
else
  log_error "CLI coverage incomplete!"
  echo ""
  echo "  Total endpoints: ${#API_ENDPOINTS[@]}"
  echo "  Covered: $COVERED"
  echo "  Missing: $MISSING"
  echo ""
  echo "Add CLI commands for missing endpoints before committing."
  echo "See Rule 2.5 in MEMORY.md for details."
  echo ""
  exit 1
fi