#!/bin/bash
set -e

# Colors for output
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
RED='\033[0;31m'
NC='\033[0m' # No Color

# Configuration
API_BASE_URL="${NEXT_PUBLIC_API_BASE_URL:-http://localhost:8000}"
API_URL="$API_BASE_URL/api/v1/openapi.json"
OUTPUT_DIR="./src/lib/api/generated"

echo -e "${YELLOW}🔧 API Client Generation${NC}"
echo -e "${YELLOW}========================${NC}"
echo ""
echo -e "API URL: ${GREEN}$API_URL${NC}"
echo -e "Output Directory: ${GREEN}$OUTPUT_DIR${NC}"
echo ""

# Check if backend is running
echo -e "${YELLOW}📡 Checking backend availability...${NC}"
if curl -s -f "$API_BASE_URL/health" > /dev/null 2>&1 || curl -s -f "$API_URL" > /dev/null 2>&1; then
    echo -e "${GREEN}✓ Backend is reachable${NC}"
else
    echo -e "${RED}✗ Backend is not reachable at $API_BASE_URL${NC}"
    echo -e "${YELLOW}ℹ Make sure the backend is running:${NC}"
    echo -e "  cd ../backend && uvicorn app.main:app --reload"
    exit 1
fi

# Fetch OpenAPI spec
echo -e "${YELLOW}📥 Fetching OpenAPI specification...${NC}"
if ! curl -s -f "$API_URL" -o /tmp/openapi.json; then
    echo -e "${RED}✗ Failed to fetch OpenAPI spec from $API_URL${NC}"
    exit 1
fi
echo -e "${GREEN}✓ OpenAPI spec fetched successfully${NC}"

# Create output directory
echo -e "${YELLOW}📁 Creating output directory...${NC}"
mkdir -p "$OUTPUT_DIR"
echo -e "${GREEN}✓ Output directory ready${NC}"

# Generate TypeScript client
echo -e "${YELLOW}⚙️  Generating TypeScript API client...${NC}"
if npx @hey-api/openapi-ts \
    --input /tmp/openapi.json \
    --output "$OUTPUT_DIR" \
    --client axios \
    --name ApiClient \
    --useOptions true \
    --exportSchemas true; then
    echo -e "${GREEN}✓ API client generated successfully${NC}"
else
    echo -e "${RED}✗ Failed to generate API client${NC}"
    exit 1
fi

# Clean up
rm /tmp/openapi.json

echo ""
echo -e "${GREEN}✅ API client generation complete!${NC}"
echo -e "${YELLOW}📝 Generated files:${NC}"
echo -e "  - $OUTPUT_DIR/index.ts"
echo -e "  - $OUTPUT_DIR/schemas/"
echo -e "  - $OUTPUT_DIR/services/"
echo ""
echo -e "${YELLOW}💡 Next steps:${NC}"
echo -e "  Import in your code:"
echo -e "  ${GREEN}import { ApiClient } from '@/lib/api/generated';${NC}"
echo ""