//go:generate go run github.com/99designs/gqlgen generate
package graph

import (
	"context"
	"log/slog"
	"net/http"

	"github.com/99designs/gqlgen/graphql"
	"github.com/99designs/gqlgen/graphql/handler"
	"github.com/99designs/gqlgen/graphql/handler/extension"
	"github.com/99designs/gqlgen/graphql/playground"
	"github.com/vektah/gqlparser/gqlerror"
	"gitserver.in/patialtech/rano/graph/generated"
	"gitserver.in/patialtech/rano/pkg/logger"
)

// This file will not be regenerated automatically.
//
// It serves as dependency injection for your app, add any dependencies you require here.

type Resolver struct{}

var srv *handler.Server

func init() {
	srv = handler.NewDefaultServer(schema())
	// limit query complexity
	srv.Use(extension.FixedComplexityLimit(90))

	// recover
	srv.SetRecoverFunc(func(ctx context.Context, err interface{}) error {
		oc := graphql.GetOperationContext(ctx)
		// TODO: sanitize oc.RawQuery
		logger.Error(err.(error), slog.String("gqlQuery", oc.RawQuery))
		return gqlerror.Errorf("Internal server error!")
	})
}

// schema creates a graphql executable schema.
func schema() graphql.ExecutableSchema {
	c := generated.Config{
		Resolvers: &Resolver{},
	}

	// c.Directives.Authorize = func(ctx context.Context, obj interface{}, next graphql.Resolver, groups []*permission.Group) (res interface{}, err error) {
	// 	// get session user
	// 	user := account.CtxUser(ctx)
	// 	if user == nil {
	// 		// session user isn't found
	// 		return nil, errors.New("401 Unauthorized")
	// 	}

	// 	// has roles count more than 0
	// 	if len(groups) == 0 { // we just want to authorize, no need to check has a role
	// 		return next(ctx)
	// 	}

	// 	// user is in desired role
	// 	for _, g := range groups {
	// 		if g == nil {
	// 			continue
	// 		}

	// 		// Role Check
	// 		switch *g {
	// 		case permission.GroupRFXAdmin,
	// 			permission.GroupDealerAdmin,
	// 			permission.GroupInstallerAdmin,
	// 			permission.GroupIntegratorAdmin:
	// 			if enum.RoleAdmin != user.Role {
	// 				continue
	// 			}

	// 		case permission.GroupRFXUser,
	// 			permission.GroupDealerUser,
	// 			permission.GroupInstallerUser,
	// 			permission.GroupIntegratorUser:
	// 			if enum.RoleSiteUser != user.Role {
	// 				continue
	// 			}

	// 		default:
	// 			continue
	// 		}

	// 		// ORG must be present
	// 		if user.Partner == nil {
	// 			continue
	// 		}

	// 		// ORG Type Check
	// 		switch *g {
	// 		case permission.GroupRFXAdmin, permission.GroupRFXUser:
	// 			if enum.PartnerRFX == user.Partner.Type {
	// 				return next(ctx)
	// 			}
	// 		case permission.GroupDealerAdmin, permission.GroupDealerUser:
	// 			if enum.PartnerDealer == user.Partner.Type {
	// 				return next(ctx)
	// 			}
	// 		case permission.GroupInstallerAdmin, permission.GroupInstallerUser:
	// 			if enum.PartnerInstaller == user.Partner.Type {
	// 				return next(ctx)
	// 			}
	// 		case permission.GroupIntegratorAdmin, permission.GroupIntegratorUser:
	// 			if enum.PartnerIntegrator == user.Partner.Type {
	// 				return next(ctx)
	// 			}
	// 		}
	// 	}

	// 	// failed, user is not authorized to go next
	// 	return nil, msg.NewError(msg.NotAuthorized)
	// }

	// c.Directives.FieldFor = func(
	// 	ctx context.Context, obj interface{}, next graphql.Resolver, roles []*enum.Role, defaultVal interface{},
	// ) (res interface{}, err error) {
	// 	// get session user
	// 	user := account.CtxUser(ctx)
	// 	if user == nil { // return empty if user info not found
	// 		return "", nil
	// 	}

	// 	// check user has a role allowed for current operation
	// 	for _, role := range roles {
	// 		if role != nil && user.Role == *role {
	// 			// on match just call next
	// 			return next(ctx)
	// 		}
	// 	}

	// 	return defaultVal, nil
	// }

	return generated.NewExecutableSchema(c)
}

// GraphiQL route handler
func GraphiQL(queryEndpoint string) func(w http.ResponseWriter, r *http.Request) {
	return func(w http.ResponseWriter, r *http.Request) {
		h := playground.Handler("GraphQL", queryEndpoint)
		h.ServeHTTP(w, r)
	}
}

// Query graph
func Query(w http.ResponseWriter, r *http.Request) {
	// srv.ServeHTTP(w, r.WithContext(userCtx(r)))
	srv.ServeHTTP(w, r)
}