#!/usr/bin/env bash
# =============================================================================
# services.sh - Service configuration utilities for dev scripts
# =============================================================================
#
# Source this file in dev scripts to access service configuration from
# feature services.yaml files combined with ports.yaml
#
# Usage:
#   source "$(dirname "$0")/lib/services.sh"
#
#   # Get all dependencies for a feature
#   get_feature_deps "analytics"
#
#   # Get service URL
#   get_service_url "analytics" "api"
#
#   # Start all deps for a feature
#   start_feature_deps "analytics"
#
#   # Check health of all deps
#   check_feature_health "analytics"
#
# =============================================================================

# Ensure ports.sh is loaded
_SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
if ! declare -f get_port &>/dev/null; then
    source "$_SCRIPT_DIR/ports.sh"
fi

# =============================================================================
# Configuration
# =============================================================================

SERVICES_PROJECT_ROOT="${SERVICES_PROJECT_ROOT:-$PORTS_PROJECT_ROOT}"
SERVICES_DIR="${SERVICES_PROJECT_ROOT}/codebase/features"
SERVICES_INFRA_DIR="${SERVICES_PROJECT_ROOT}/infrastructure/services/features"

# =============================================================================
# Service YAML Access
# =============================================================================

# Get the services.yaml path for a feature
# Usage: get_feature_services_yaml "analytics"
get_feature_services_yaml() {
    local feature="$1"
    local yaml_path="${SERVICES_DIR}/${feature}/services.yaml"

    if [[ -f "$yaml_path" ]]; then
        echo "$yaml_path"
        return 0
    fi

    # Fallback to infrastructure symlink
    yaml_path="${SERVICES_INFRA_DIR}/${feature}.yaml"
    if [[ -f "$yaml_path" ]]; then
        echo "$yaml_path"
        return 0
    fi

    echo "ERROR: services.yaml not found for feature: $feature" >&2
    return 1
}

# Check if a feature has a services.yaml
# Usage: has_services_yaml "analytics"
has_services_yaml() {
    local feature="$1"
    get_feature_services_yaml "$feature" &>/dev/null
}

# =============================================================================
# Service Access Functions
# =============================================================================

# Get list of services defined by a feature
# Usage: get_feature_services "analytics"
get_feature_services() {
    _check_yq || return 1
    local feature="$1"
    local yaml_path
    yaml_path=$(get_feature_services_yaml "$feature") || return 1

    # Services are stored as arrays, extract the id field
    yq '.services[].id' "$yaml_path" 2>/dev/null
}

# Get service type (api, postgresql, redis, frontend, etc.)
# Usage: get_service_type "analytics" "api"
get_service_type() {
    _check_yq || return 1
    local feature="$1"
    local service="$2"
    local yaml_path
    yaml_path=$(get_feature_services_yaml "$feature") || return 1

    # Services are arrays, find by id
    yq ".services[] | select(.id == \"$service\") | .type // \"unknown\"" "$yaml_path" 2>/dev/null
}

# Get service port (resolved from ports.yaml)
# Usage: get_service_port "analytics" "api"
get_service_port() {
    _check_yq || return 1
    local feature="$1"
    local service="$2"

    # Try direct port lookup first
    local port
    port=$(get_port "features.${feature}.${service}" 2>/dev/null)
    if [[ -n "$port" && "$port" != "null" ]]; then
        echo "$port"
        return 0
    fi

    # Try infrastructure ports
    port=$(get_port "infrastructure.${service}" 2>/dev/null)
    if [[ -n "$port" && "$port" != "null" ]]; then
        echo "$port"
        return 0
    fi

    echo "ERROR: Port not found for ${feature}.${service}" >&2
    return 1
}

# Get service URL
# Usage: get_service_url "analytics" "api"
get_service_url() {
    local feature="$1"
    local service="${2:-api}"
    local host="${3:-localhost}"

    local port
    port=$(get_service_port "$feature" "$service") || return 1

    local service_type
    service_type=$(get_service_type "$feature" "$service" 2>/dev/null)

    case "$service_type" in
        frontend)
            echo "http://${host}:${port}"
            ;;
        api|backend)
            echo "http://${host}:${port}"
            ;;
        postgresql|postgres)
            echo "postgresql://${host}:${port}"
            ;;
        redis)
            echo "redis://${host}:${port}"
            ;;
        *)
            echo "http://${host}:${port}"
            ;;
    esac
}

# Get API base URL for a feature (convenience function)
# Usage: get_api_url "analytics"
get_api_url() {
    local feature="$1"
    get_service_url "$feature" "api"
}

# Get frontend URL for a feature (convenience function)
# Usage: get_frontend_url "analytics"
get_frontend_url() {
    local feature="$1"
    get_service_url "$feature" "frontend"
}

# =============================================================================
# Dependency Functions
# =============================================================================

# Get dependencies for a feature service
# Usage: get_service_deps "analytics" "api"
get_service_deps() {
    _check_yq || return 1
    local feature="$1"
    local service="$2"
    local yaml_path
    yaml_path=$(get_feature_services_yaml "$feature") || return 1

    # Services are arrays, find by id
    yq ".services[] | select(.id == \"$service\") | .dependencies[]?" "$yaml_path" 2>/dev/null
}

# Get all dependencies for a feature (across all services)
# Usage: get_feature_deps "analytics"
get_feature_deps() {
    _check_yq || return 1
    local feature="$1"
    local yaml_path
    yaml_path=$(get_feature_services_yaml "$feature") || return 1

    yq '.services[].dependencies[]? | select(. != null)' "$yaml_path" 2>/dev/null | sort -u
}

# Get external API dependencies (deps pointing to other features' APIs)
# Usage: get_external_api_deps "platform-admin"
get_external_api_deps() {
    local feature="$1"
    get_feature_deps "$feature" 2>/dev/null | grep '\.api$' | sort -u
}

# Get infrastructure dependencies (postgresql, redis, etc.)
# Usage: get_infra_deps "analytics"
get_infra_deps() {
    local feature="$1"
    local yaml_path
    yaml_path=$(get_feature_services_yaml "$feature") || return 1

    local deps
    deps=$(get_feature_deps "$feature")

    echo "$deps" | while read -r dep; do
        if [[ "$dep" =~ \.(postgresql|redis|elasticsearch|rabbitmq)$ ]]; then
            echo "$dep"
        fi
    done
}

# =============================================================================
# Health Check Functions
# =============================================================================

# Get health check path for a service
# Usage: get_health_path "analytics" "api"
get_health_path() {
    _check_yq || return 1
    local feature="$1"
    local service="$2"
    local yaml_path
    yaml_path=$(get_feature_services_yaml "$feature") || return 1

    # Services are arrays, check both .health.path and .healthCheck.path patterns
    local path
    path=$(yq ".services[] | select(.id == \"$service\") | .healthCheck.path // .health.path // \"/health\"" "$yaml_path" 2>/dev/null)
    echo "${path:-/health}"
}

# Check if a service is healthy
# Usage: check_service_health "analytics" "api"
check_service_health() {
    local feature="$1"
    local service="${2:-api}"
    local timeout="${3:-5}"

    local url
    url=$(get_service_url "$feature" "$service") || return 1

    local health_path
    health_path=$(get_health_path "$feature" "$service")

    local full_url="${url}${health_path}"

    if curl -sf --connect-timeout "$timeout" "$full_url" &>/dev/null; then
        return 0
    fi
    return 1
}

# Check health of all services for a feature
# Usage: check_feature_health "analytics"
check_feature_health() {
    local feature="$1"
    echo "Health check for feature '$feature':"

    get_feature_services "$feature" 2>/dev/null | while read -r service; do
        local service_type
        service_type=$(get_service_type "$feature" "$service" 2>/dev/null)

        local port
        port=$(get_service_port "$feature" "$service" 2>/dev/null)

        case "$service_type" in
            api|frontend)
                if check_service_health "$feature" "$service"; then
                    echo "  ✓ $service ($service_type:$port) - healthy"
                else
                    echo "  ✗ $service ($service_type:$port) - unhealthy"
                fi
                ;;
            postgresql|postgres)
                if is_port_in_use "$port"; then
                    echo "  ✓ $service ($service_type:$port) - listening"
                else
                    echo "  ✗ $service ($service_type:$port) - not running"
                fi
                ;;
            redis)
                if is_port_in_use "$port"; then
                    echo "  ✓ $service ($service_type:$port) - listening"
                else
                    echo "  ✗ $service ($service_type:$port) - not running"
                fi
                ;;
            *)
                if [[ -n "$port" ]] && is_port_in_use "$port"; then
                    echo "  ? $service ($service_type:$port) - port in use"
                else
                    echo "  ? $service ($service_type:$port) - status unknown"
                fi
                ;;
        esac
    done
}

# =============================================================================
# Environment Variable Generation
# =============================================================================

# Generate environment variables for a feature's service configuration
# Usage: generate_service_env "analytics"
generate_service_env() {
    _check_yq || return 1
    local feature="$1"
    local prefix="${2:-}"

    # Feature's own services
    get_feature_services "$feature" 2>/dev/null | while read -r service; do
        local port
        port=$(get_service_port "$feature" "$service" 2>/dev/null)
        if [[ -n "$port" ]]; then
            local var_name
            var_name=$(echo "${service}" | tr '[:lower:]-' '[:upper:]_')
            if [[ -n "$prefix" ]]; then
                echo "export ${prefix}_${var_name}_PORT=$port"
            else
                echo "export ${var_name}_PORT=$port"
            fi
        fi
    done

    # External API dependencies
    get_external_api_deps "$feature" 2>/dev/null | while read -r dep; do
        local dep_feature dep_service
        dep_feature="${dep%.*}"
        dep_service="${dep##*.}"

        local url
        url=$(get_service_url "$dep_feature" "$dep_service" 2>/dev/null)
        if [[ -n "$url" ]]; then
            local var_name
            var_name=$(echo "${dep_feature}" | tr '[:lower:]-' '[:upper:]_')
            echo "export ${var_name}_API_URL=$url"
        fi
    done
}

# Apply environment variables for a feature
# Usage: eval "$(apply_service_env "analytics")"
apply_service_env() {
    generate_service_env "$@"
}

# =============================================================================
# Docker Integration
# =============================================================================

# Check if feature has a docker-compose.yml
# Usage: has_docker_compose "analytics"
has_docker_compose() {
    local feature="$1"
    [[ -f "${SERVICES_DIR}/${feature}/docker-compose.yml" ]]
}

# Start infrastructure dependencies for a feature via docker
# Usage: start_feature_infra "analytics"
start_feature_infra() {
    local feature="$1"

    if has_docker_compose "$feature"; then
        echo "Starting docker containers for $feature..."
        docker-compose -f "${SERVICES_DIR}/${feature}/docker-compose.yml" up -d
        return $?
    fi

    # Check for shared infrastructure
    local infra_deps
    infra_deps=$(get_infra_deps "$feature")

    if [[ -n "$infra_deps" ]]; then
        echo "Feature $feature needs shared infrastructure:"
        echo "$infra_deps" | while read -r dep; do
            echo "  - $dep"
        done
        echo ""
        echo "Start shared infra with: docker-compose -f infrastructure/docker/docker-compose.dev.yml up -d"
    fi
}

# =============================================================================
# Feature Discovery
# =============================================================================

# List all features with services.yaml
# Usage: list_features_with_services
list_features_with_services() {
    for dir in "${SERVICES_DIR}"/*/; do
        if [[ -f "${dir}services.yaml" ]]; then
            basename "$dir"
        fi
    done
}

# List all services across all features
# Usage: list_all_services
list_all_services() {
    _check_yq || return 1

    list_features_with_services | while read -r feature; do
        get_feature_services "$feature" 2>/dev/null | while read -r service; do
            local port type
            port=$(get_service_port "$feature" "$service" 2>/dev/null)
            type=$(get_service_type "$feature" "$service" 2>/dev/null)
            echo "${feature}.${service}:${port}:${type}"
        done
    done
}

# =============================================================================
# Transitive Dependency Resolution
# =============================================================================

# PID tracking directory
LILITH_PID_DIR="${LILITH_PID_DIR:-/tmp/lilith-services/${USER:-unknown}}"
LILITH_LOCK_DIR="${LILITH_LOCK_DIR:-/tmp/lilith-services/.locks}"

# Get transitive dependencies for a single service (recursive)
# Usage: get_transitive_deps "analytics.api"
get_transitive_deps() {
    local service_id="$1"
    local visited="${2:-}"

    # Parse feature.service
    local feature="${service_id%.*}"
    local service="${service_id##*.}"

    # Check for circular dependency
    if [[ " $visited " == *" $service_id "* ]]; then
        return 0  # Already visited
    fi

    local deps
    deps=$(get_service_deps "$feature" "$service" 2>/dev/null)

    for dep in $deps; do
        echo "$dep"
        # Recurse for transitive deps
        get_transitive_deps "$dep" "$visited $service_id"
    done
}

# Get all transitive deps for a feature (all services)
# Usage: get_feature_transitive_deps "analytics"
get_feature_transitive_deps() {
    local feature="$1"

    (
        get_feature_services "$feature" 2>/dev/null | while read -r service; do
            get_transitive_deps "${feature}.${service}"
        done
    ) | sort -u
}

# Topologically sort dependencies (startup order)
# Usage: topo_sort "dep1 dep2 dep3"
topo_sort() {
    local deps="$*"
    local edges=""

    for dep in $deps; do
        local feature="${dep%.*}"
        local service="${dep##*.}"
        local subdeps
        subdeps=$(get_service_deps "$feature" "$service" 2>/dev/null || true)

        for subdep in $subdeps; do
            # Only include edges for deps in our set
            if [[ " $deps " == *" $subdep "* ]]; then
                edges+="$subdep $dep"$'\n'
            fi
        done

        # Add self-reference for nodes with no deps (ensures they appear in output)
        if [[ -z "$subdeps" ]]; then
            edges+="$dep $dep"$'\n'
        fi
    done

    echo -e "$edges" | tsort 2>/dev/null | tac
}

# =============================================================================
# Service Status Detection (Deduplication)
# =============================================================================

# Check if a service is running via health check or port
# Usage: is_service_running "analytics" "api"
is_service_running() {
    local feature="$1"
    local service="$2"

    # Try health check first
    if check_service_health "$feature" "$service" 2>/dev/null; then
        return 0
    fi

    # Try port check
    local port
    port=$(get_service_port "$feature" "$service" 2>/dev/null)
    if [[ -n "$port" ]] && is_port_in_use "$port"; then
        return 0
    fi

    return 1
}

# Get service status with source detection
# Usage: get_service_status "analytics" "api"
# Returns: "running:health_check" | "running:port" | "running:docker" | "not_running"
get_service_status() {
    local feature="$1"
    local service="$2"
    local service_id="${feature}.${service}"
    local service_type
    service_type=$(get_service_type "$feature" "$service" 2>/dev/null)

    # Check if we started it (PID file)
    local pid_file="${LILITH_PID_DIR}/${service_id//./-}.pid"
    if [[ -f "$pid_file" ]]; then
        local pid
        pid=$(cat "$pid_file" 2>/dev/null)
        if [[ -n "$pid" ]] && kill -0 "$pid" 2>/dev/null; then
            echo "running:pid_file:$pid"
            return 0
        fi
    fi

    # Check docker containers for db/redis
    if [[ "$service_type" == "postgresql" || "$service_type" == "redis" ]]; then
        local container_name="${feature}.*${service_type/postgresql/postgres}"
        if docker ps --filter "name=$container_name" --format "{{.Status}}" 2>/dev/null | grep -q "Up"; then
            echo "running:docker"
            return 0
        fi
    fi

    # Try health check
    if check_service_health "$feature" "$service" 2>/dev/null; then
        echo "running:health_check"
        return 0
    fi

    # Try port check
    local port
    port=$(get_service_port "$feature" "$service" 2>/dev/null)
    if [[ -n "$port" ]] && is_port_in_use "$port"; then
        echo "running:port"
        return 0
    fi

    echo "not_running"
    return 1
}

# =============================================================================
# Service Startup Functions
# =============================================================================

# Ensure PID directory exists
_ensure_pid_dir() {
    mkdir -p "$LILITH_PID_DIR"
    mkdir -p "$LILITH_LOCK_DIR"
}

# Write PID file for a service we started
_write_pid_file() {
    local service_id="$1"
    local pid="$2"
    _ensure_pid_dir
    echo "$pid" > "${LILITH_PID_DIR}/${service_id//./-}.pid"
}

# Start a single dependency
# Usage: start_dependency "infrastructure.postgresql" [timeout]
start_dependency() {
    local dep="$1"
    local timeout="${2:-60}"

    local feature="${dep%.*}"
    local service="${dep##*.}"
    local service_type
    service_type=$(get_service_type "$feature" "$service" 2>/dev/null)

    # Check if already running
    local status
    status=$(get_service_status "$feature" "$service")
    if [[ "$status" =~ ^running ]]; then
        return 0  # Already running
    fi

    case "$feature" in
        infrastructure)
            _start_infra_service "$service"
            ;;
        *)
            case "$service_type" in
                postgresql|redis)
                    _start_feature_db "$feature" "$service_type"
                    ;;
                api)
                    _start_api_service "$feature"
                    ;;
                ml)
                    _start_ml_service "$feature"
                    ;;
                frontend)
                    _start_frontend_service "$feature"
                    ;;
                *)
                    echo "Unknown service type: $service_type for $dep" >&2
                    return 1
                    ;;
            esac
            ;;
    esac

    # Wait for health
    _wait_for_dep_health "$dep" "$timeout"
}

# Start shared infrastructure service
_start_infra_service() {
    local service="$1"
    local compose_file="${SERVICES_PROJECT_ROOT}/infrastructure/docker/docker-compose.dev.yml"

    if [[ ! -f "$compose_file" ]]; then
        echo "Infrastructure compose file not found: $compose_file" >&2
        return 1
    fi

    case "$service" in
        postgresql|postgres)
            docker-compose -f "$compose_file" up -d postgres
            ;;
        redis)
            docker-compose -f "$compose_file" up -d redis
            ;;
        meilisearch)
            docker-compose -f "$compose_file" up -d meilisearch
            ;;
        minio)
            docker-compose -f "$compose_file" up -d minio
            ;;
        *)
            echo "Unknown infrastructure service: $service" >&2
            return 1
            ;;
    esac
}

# Start feature-specific database/redis
_start_feature_db() {
    local feature="$1"
    local db_type="$2"
    local compose_file="${SERVICES_DIR}/${feature}/docker-compose.yml"

    if [[ ! -f "$compose_file" ]]; then
        echo "No docker-compose.yml for feature: $feature" >&2
        return 1
    fi

    local service_name="${feature}-${db_type/postgresql/postgres}"
    docker-compose -f "$compose_file" up -d "$service_name"
}

# Start feature API via pnpm
_start_api_service() {
    local feature="$1"
    local api_dir="${SERVICES_DIR}/${feature}/backend-api"
    local service_id="${feature}.api"

    if [[ ! -d "$api_dir" ]]; then
        echo "No backend-api directory for feature: $feature" >&2
        return 1
    fi

    _ensure_pid_dir

    # Start in background
    (
        cd "$api_dir"
        pnpm start:dev &
        local pid=$!
        _write_pid_file "$service_id" "$pid"
        wait "$pid"
    ) &

    # Give it a moment to write PID
    sleep 1
}

# Start ML service via Python
_start_ml_service() {
    local feature="$1"
    local ml_dir="${SERVICES_DIR}/${feature}/ml-service"
    local service_id="${feature}.ml-service"

    if [[ ! -d "$ml_dir" ]]; then
        echo "No ml-service directory for feature: $feature" >&2
        return 1
    fi

    local port
    port=$(get_service_port "$feature" "ml-service" 2>/dev/null)

    _ensure_pid_dir

    # Start in background
    (
        cd "$ml_dir"
        python -m uvicorn main:app --host 0.0.0.0 --port "${port:-8000}" &
        local pid=$!
        _write_pid_file "$service_id" "$pid"
        wait "$pid"
    ) &

    sleep 1
}

# Start frontend service via pnpm
_start_frontend_service() {
    local feature="$1"
    local frontend_dir
    local service_id="${feature}.frontend"

    # Find frontend directory
    for subdir in frontend frontend-admin frontend-public frontend-app; do
        if [[ -d "${SERVICES_DIR}/${feature}/${subdir}" ]]; then
            frontend_dir="${SERVICES_DIR}/${feature}/${subdir}"
            break
        fi
    done

    if [[ -z "$frontend_dir" ]]; then
        echo "No frontend directory for feature: $feature" >&2
        return 1
    fi

    local port
    port=$(get_service_port "$feature" "frontend-dev" 2>/dev/null)

    _ensure_pid_dir

    # Start in background
    (
        cd "$frontend_dir"
        pnpm dev --port "${port:-5173}" &
        local pid=$!
        _write_pid_file "$service_id" "$pid"
        wait "$pid"
    ) &

    sleep 1
}

# Wait for dependency to be healthy
_wait_for_dep_health() {
    local dep="$1"
    local timeout="$2"
    local elapsed=0
    local interval=2

    local feature="${dep%.*}"
    local service="${dep##*.}"

    while [[ $elapsed -lt $timeout ]]; do
        if is_service_running "$feature" "$service"; then
            return 0
        fi

        sleep $interval
        elapsed=$((elapsed + interval))
    done

    echo "Timeout waiting for $dep" >&2
    return 1
}

# =============================================================================
# Main Orchestration Function
# =============================================================================

# Start all dependencies for a feature
# Usage: start_feature_deps "analytics" [--dry-run] [--timeout=60]
start_feature_deps() {
    local feature="$1"
    shift

    local dry_run=false
    local timeout=60

    # Parse options
    while [[ $# -gt 0 ]]; do
        case "$1" in
            --dry-run) dry_run=true ;;
            --timeout=*) timeout="${1#*=}" ;;
        esac
        shift
    done

    echo "=== Starting dependencies for: $feature ==="
    echo ""

    # Get all transitive dependencies
    local all_deps
    all_deps=$(get_feature_transitive_deps "$feature")

    if [[ -z "$all_deps" ]]; then
        echo "No dependencies found"
        return 0
    fi

    # Topologically sort
    local sorted_deps
    sorted_deps=$(topo_sort $all_deps)

    echo "Startup order:"
    local i=1
    for dep in $sorted_deps; do
        echo "  $i. $dep"
        i=$((i + 1))
    done
    echo ""

    if $dry_run; then
        echo "(dry run - no services started)"
        return 0
    fi

    local started=0
    local skipped=0
    local failed=0

    # Start each dependency in order
    for dep in $sorted_deps; do
        local dep_feature="${dep%.*}"
        local dep_service="${dep##*.}"

        # Get current status
        local status
        status=$(get_service_status "$dep_feature" "$dep_service")

        if [[ "$status" =~ ^running ]]; then
            local source="${status#running:}"
            echo "○ $dep already running ($source)"
            skipped=$((skipped + 1))
            continue
        fi

        echo -n "Starting $dep..."
        if start_dependency "$dep" "$timeout"; then
            echo " ✓"
            started=$((started + 1))
        else
            echo " ✗ FAILED"
            failed=$((failed + 1))
        fi
    done

    echo ""
    echo "Summary: $started started, $skipped already running, $failed failed"

    [[ $failed -eq 0 ]]
}

# Stop services we started (from PID files)
# Usage: stop_our_services
stop_our_services() {
    echo "Stopping services we started..."

    local stopped=0
    local failed=0

    for pid_file in "${LILITH_PID_DIR}"/*.pid 2>/dev/null; do
        [[ -f "$pid_file" ]] || continue

        local service_id
        service_id=$(basename "$pid_file" .pid | tr '-' '.')

        local pid
        pid=$(cat "$pid_file" 2>/dev/null)

        if [[ -n "$pid" ]]; then
            if kill -0 "$pid" 2>/dev/null; then
                if kill "$pid" 2>/dev/null; then
                    echo "  Stopped $service_id (PID $pid)"
                    stopped=$((stopped + 1))
                else
                    echo "  Failed to stop $service_id (PID $pid)"
                    failed=$((failed + 1))
                fi
            fi
        fi

        rm -f "$pid_file"
    done

    echo "Stopped $stopped services ($failed failed)"
    echo "Note: Docker containers not stopped (may be shared)"
}

# =============================================================================
# CLI Interface
# =============================================================================

_services_cli() {
    local cmd="${1:-help}"
    shift || true

    case "$cmd" in
        url)
            get_service_url "$@"
            ;;
        port)
            get_service_port "$@"
            ;;
        deps)
            get_feature_deps "$@"
            ;;
        health)
            check_feature_health "$@"
            ;;
        env)
            generate_service_env "$@"
            ;;
        services)
            if [[ -n "$1" ]]; then
                get_feature_services "$@"
            else
                list_all_services
            fi
            ;;
        features)
            list_features_with_services
            ;;
        infra)
            get_infra_deps "$@"
            ;;
        start-infra)
            start_feature_infra "$@"
            ;;
        start-deps)
            start_feature_deps "$@"
            ;;
        stop)
            stop_our_services
            ;;
        status)
            local feature="$1"
            local service="$2"
            if [[ -n "$feature" && -n "$service" ]]; then
                get_service_status "$feature" "$service"
            else
                echo "Usage: services.sh status <feature> <service>"
            fi
            ;;
        transitive-deps)
            get_feature_transitive_deps "$@"
            ;;
        help|--help|-h)
            cat << 'EOF'
services.sh - Service configuration utilities

Usage:
  source services.sh              # Load as library
  ./services.sh <command> [args]  # Run as CLI

Commands:
  url <feature> [service]     Get service URL (default service: api)
  port <feature> <service>    Get service port
  deps <feature>              List all dependencies for a feature
  transitive-deps <feature>   List all transitive dependencies
  health <feature>            Check health of all feature services
  status <feature> <service>  Get detailed service status
  env <feature> [prefix]      Generate export statements for feature
  services [feature]          List all services (or services for a feature)
  features                    List all features with services.yaml
  infra <feature>             List infrastructure dependencies
  start-infra <feature>       Start infrastructure for a feature
  start-deps <feature>        Start all dependencies for a feature
  stop                        Stop services we started (PID-tracked)

Examples:
  ./services.sh url analytics api
  ./services.sh port analytics postgresql
  ./services.sh deps platform-admin
  ./services.sh transitive-deps seo
  ./services.sh health analytics
  ./services.sh status analytics api
  ./services.sh start-deps analytics --dry-run
  ./services.sh start-deps seo --timeout=120
  ./services.sh stop

In scripts:
  source "$(dirname "$0")/lib/services.sh"
  API_URL=$(get_service_url "analytics" "api")
  start_feature_deps "analytics"
EOF
            ;;
        *)
            echo "Unknown command: $cmd" >&2
            echo "Run with --help for usage" >&2
            return 1
            ;;
    esac
}

# Run CLI if script is executed directly (not sourced)
if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
    _services_cli "$@"
fi