package main

import (
	"net/http"
	"tercul/internal/adapters/graphql"
	"tercul/internal/observability"
	"tercul/internal/platform/auth"

	"github.com/99designs/gqlgen/graphql/handler"
)

// NewServer creates a new GraphQL server with the given resolver
func NewServer(resolver *graphql.Resolver) http.Handler {
	c := graphql.Config{Resolvers: resolver}
	c.Directives.Binding = graphql.Binding
	srv := handler.NewDefaultServer(graphql.NewExecutableSchema(c))

	// Create a mux to handle GraphQL endpoint only (no playground here; served separately in production)
	mux := http.NewServeMux()
	mux.Handle("/query", srv)

	return mux
}

// NewServerWithAuth creates a new GraphQL server with authentication and observability middleware
func NewServerWithAuth(resolver *graphql.Resolver, jwtManager *auth.JWTManager, metrics *observability.Metrics) http.Handler {
	c := graphql.Config{Resolvers: resolver}
	c.Directives.Binding = graphql.Binding

	// Create the server with the custom error presenter
	srv := handler.NewDefaultServer(graphql.NewExecutableSchema(c))
	srv.SetErrorPresenter(graphql.NewErrorPresenter())

	// Create a middleware chain
	var chain http.Handler
	chain = srv
	chain = auth.GraphQLAuthMiddleware(jwtManager)(chain)
	chain = metrics.PrometheusMiddleware(chain)
	chain = observability.TracingMiddleware(chain)
	chain = observability.RequestIDMiddleware(chain)

	// Create a mux to handle GraphQL endpoint
	mux := http.NewServeMux()
	mux.Handle("/query", chain)

	return mux
}