package main

import (
	"fmt"
	"log"
	"net/http"
	"time"

	"github.com/gin-gonic/gin"
	"github.com/google/uuid"
)

type LaunchRequest struct {
	Domain     string `json:"domain" binding:"required"`
	Email      string `json:"email" binding:"required,email"`
	CardNumber string `json:"cardNumber" binding:"required"`
}

type LaunchResponse struct {
	Success     bool   `json:"success"`
	Message     string `json:"message"`
	CustomerID  string `json:"customer_id,omitempty"`
	Domain      string `json:"domain,omitempty"`
	Provisioned bool   `json:"provisioned,omitempty"`
}

type HealthResponse struct {
	Status    string    `json:"status"`
	Message   string    `json:"message"`
	Timestamp time.Time `json:"timestamp"`
	Version   string    `json:"version"`
}

func main() {
	// Set Gin mode
	gin.SetMode(gin.ReleaseMode)
	
	r := gin.Default()
	
	// Enable CORS for all origins
	r.Use(func(c *gin.Context) {
		c.Header("Access-Control-Allow-Origin", "*")
		c.Header("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS")
		c.Header("Access-Control-Allow-Headers", "Origin, Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization")
		
		if c.Request.Method == "OPTIONS" {
			c.AbortWithStatus(http.StatusNoContent)
			return
		}
		
		c.Next()
	})
	
	// Serve landing page
	r.GET("/", func(c *gin.Context) {
		c.File("web/templates/accessible_landing.html")
	})
	
	// Health check endpoint
	r.GET("/health", func(c *gin.Context) {
		c.JSON(http.StatusOK, HealthResponse{
			Status:    "ok",
			Message:   "YourDreamNameHere API is running",
			Timestamp: time.Now(),
			Version:   "1.0.0",
		})
	})
	
	// API status endpoint
	r.GET("/api/status", func(c *gin.Context) {
		c.JSON(http.StatusOK, gin.H{
			"status": "operational",
			"services": gin.H{
				"ovh":      "connected",
				"stripe":   "connected", 
				"cloudron": "ready",
				"dolibarr": "connected",
			},
			"uptime": "0h 0m",
		})
	})
	
	// Launch endpoint - handles the main business logic
	r.POST("/api/launch", func(c *gin.Context) {
		var req LaunchRequest
		if err := c.ShouldBindJSON(&req); err != nil {
			c.JSON(http.StatusBadRequest, LaunchResponse{
				Success: false,
				Message: fmt.Sprintf("Invalid request: %v", err),
			})
			return
		}
		
		// Validate inputs
		if req.Domain == "" || req.Email == "" || req.CardNumber == "" {
			c.JSON(http.StatusBadRequest, LaunchResponse{
				Success: false,
				Message: "All fields are required",
			})
			return
		}
		
		// Generate customer ID
		customerID := uuid.New().String()
		
		// Mock the provisioning process
		log.Printf("Starting provisioning for domain: %s, email: %s, customer: %s", req.Domain, req.Email, customerID)
		
		// Simulate async processing
		go func() {
			// Mock domain registration
			time.Sleep(2 * time.Second)
			log.Printf("Domain %s registered for customer %s", req.Domain, customerID)
			
			// Mock VPS provisioning  
			time.Sleep(5 * time.Second)
			log.Printf("VPS provisioned for domain %s", req.Domain)
			
			// Mock Cloudron installation
			time.Sleep(10 * time.Second)
			log.Printf("Cloudron installed for domain %s", req.Domain)
			
			// Mock Dolibarr setup
			time.Sleep(3 * time.Second)
			log.Printf("Dolibarr configured for customer %s", customerID)
			
			log.Printf("Provisioning completed for %s - customer %s", req.Domain, customerID)
		}()
		
		// Return immediate response
		c.JSON(http.StatusOK, LaunchResponse{
			Success:     true,
			Message:     "Your hosting business is being provisioned! You'll receive an email when setup is complete.",
			CustomerID:  customerID,
			Domain:      req.Domain,
			Provisioned: false, // Will be true when async process completes
		})
	})
	
	// Check provisioning status
	r.GET("/api/status/:customerID", func(c *gin.Context) {
		customerID := c.Param("customerID")
		
		// Mock status check - in real implementation, check database
		c.JSON(http.StatusOK, gin.H{
			"customer_id":  customerID,
			"status":       "provisioning",
			"progress":     25,
			"estimated_time": "15 minutes",
			"steps": []gin.H{
				{"name": "Domain Registration", "status": "completed"},
				{"name": "VPS Provisioning", "status": "in_progress"},
				{"name": "Cloudron Installation", "status": "pending"},
				{"name": "DNS Configuration", "status": "pending"},
				{"name": "Business Setup", "status": "pending"},
			},
		})
	})
	
	// Static assets
	r.Static("/static", "./web/static")
	
	// Start server
	port := "8080"
	log.Printf("🚀 YourDreamNameHere starting on port %s", port)
	log.Printf("📱 Landing page: http://localhost:%s", port)
	log.Printf("🔗 Health check: http://localhost:%s/health", port)
	log.Printf("📊 API status: http://localhost:%s/api/status", port)
	
	if err := r.Run(":" + port); err != nil {
		log.Fatal("Failed to start server:", err)
	}
}