#!/bin/sh
# =============================================================
# EVOLV Flow Deployment Script
# Deploys a flow JSON file to the Node-RED instance
# Usage: deploy-flow.sh <flow-file.json>
# =============================================================
set -e

NODERED_URL="${NODERED_URL:-http://localhost:1880}"
FLOW_FILE="${1:-}"

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

if [ -z "$FLOW_FILE" ]; then
    echo "Usage: deploy-flow.sh <flow-file.json>"
    echo ""
    echo "Examples:"
    echo "  deploy-flow.sh nodes/rotatingMachine/examples/basic.flow.json"
    echo "  deploy-flow.sh /data/evolv/nodes/reactor/examples/basic.flow.json"
    exit 1
fi

# Resolve path inside container if relative
if [ ! -f "$FLOW_FILE" ] && [ -f "/data/evolv/$FLOW_FILE" ]; then
    FLOW_FILE="/data/evolv/$FLOW_FILE"
fi

if [ ! -f "$FLOW_FILE" ]; then
    printf "${RED}ERROR${NC}: Flow file not found: %s\n" "$FLOW_FILE"
    exit 1
fi

echo "=============================================="
echo " EVOLV Flow Deployment"
echo " File: $FLOW_FILE"
echo " Target: $NODERED_URL"
echo "=============================================="
echo ""

# ---------------------------------------------------------
# Verify Node-RED is running
# ---------------------------------------------------------
if ! curl -sf "$NODERED_URL/nodes" > /dev/null 2>&1; then
    printf "${RED}ERROR${NC}: Node-RED not reachable at %s\n" "$NODERED_URL"
    echo "Start it with: docker compose up -d"
    exit 1
fi

# ---------------------------------------------------------
# Deploy flow
# ---------------------------------------------------------
printf "Deploying flow... "

RESPONSE=$(curl -s -w "\n%{http_code}" \
    -X POST \
    -H "Content-Type: application/json" \
    -H "Node-RED-Deployment-Type: full" \
    -d @"$FLOW_FILE" \
    "$NODERED_URL/flows" 2>&1)

HTTP_CODE=$(echo "$RESPONSE" | tail -1)
BODY=$(echo "$RESPONSE" | sed '$d')

if [ "$HTTP_CODE" = "204" ] || [ "$HTTP_CODE" = "200" ]; then
    printf "${GREEN}SUCCESS${NC} (HTTP %s)\n" "$HTTP_CODE"
    echo ""
    echo "Flow deployed. Open Node-RED editor at: $NODERED_URL"
else
    printf "${RED}FAILED${NC} (HTTP %s)\n" "$HTTP_CODE"
    if [ -n "$BODY" ]; then
        echo "Response:"
        echo "$BODY" | sed 's/^/  /'
    fi
    exit 1
fi