package service

import (
	"context"
	"errors"
	"git.itzana.me/strafesnet/go-grpc/auth"
	"git.itzana.me/strafesnet/maps-service/pkg/api"
)

var (
	// ErrMissingSessionID there is no session id
	ErrMissingSessionID = errors.New("SessionID missing")
	// ErrInvalidSession caller does not have a valid session
	ErrInvalidSession = errors.New("Session invalid")
)

var (
	// has SubmissionPublish
	RoleMapAdmin int32 = 128
	// has SubmissionReview
	RoleMapCouncil int32 = 64
)

type Roles struct {
	// human roles
	SubmissionPublish bool
	SubmissionReview  bool
	ScriptWrite       bool
	// automated roles
	Maptest   bool
	Validator bool
}

type UserInfo struct {
	Roles  Roles
	UserID uint64
}

func (usr UserInfo) IsSubmitter(submitter uint64) bool {
	return usr.UserID == submitter
}

type SecurityHandler struct {
	Client auth.AuthServiceClient
}

func (svc SecurityHandler) HandleCookieAuth(ctx context.Context, operationName api.OperationName, t api.CookieAuth) (context.Context, error) {
	sessionId := t.GetAPIKey()
	if sessionId == "" {
		return nil, ErrMissingSessionID
	}

	session, err := svc.Client.GetSessionUser(ctx, &auth.IdMessage{
		SessionID: sessionId,
	})
	if err != nil {
		return nil, err
	}

	role, err := svc.Client.GetGroupRole(ctx, &auth.IdMessage{
		SessionID: sessionId,
	})
	if err != nil {
		return nil, err
	}

	validate, err := svc.Client.ValidateSession(ctx, &auth.IdMessage{
		SessionID: sessionId,
	})
	if err != nil {
		return nil, err
	}
	if !validate.Valid {
		return nil, ErrInvalidSession
	}

	roles := Roles{}

	// fix this when roblox udpates group roles
	for _, r := range role.Roles {
		if RoleMapAdmin <= r.Rank {
			roles.SubmissionPublish = true
		}
		if RoleMapCouncil <= r.Rank {
			roles.SubmissionReview = true
		}
	}

	newCtx := context.WithValue(ctx, "UserInfo", UserInfo{
		Roles:  roles,
		UserID: session.UserID,
	})

	return newCtx, nil
}