package handlers

import (
	"net/http"
	"strconv"

	"nebula/views"
)

// RegisterRoutes sets up all HTTP routes for the application
func RegisterRoutes(mux *http.ServeMux) {
	// Welcome page routes
	mux.HandleFunc("GET /", handleWelcome)
	mux.HandleFunc("GET /welcome", handleWelcome)
	mux.HandleFunc("GET /welcome/step/{step}", handleWelcomeStep)
}

// handleWelcome renders the full welcome page at step 1
func handleWelcome(w http.ResponseWriter, r *http.Request) {
	views.WelcomePage(1).Render(r.Context(), w)
}

// handleWelcomeStep handles HTMX partial updates for step navigation
func handleWelcomeStep(w http.ResponseWriter, r *http.Request) {
	stepStr := r.PathValue("step")
	step, err := strconv.Atoi(stepStr)
	if err != nil || step < 1 || step > 3 {
		step = 1
	}

	// Check if this is an HTMX request
	if r.Header.Get("HX-Request") == "true" {
		// Return only the step content fragment
		views.WelcomeStepContent(step).Render(r.Context(), w)
		return
	}

	// Full page render for non-HTMX requests
	views.WelcomePage(step).Render(r.Context(), w)
}