package httpapi

import (
	"encoding/json"
	"testing"
)

func TestUserIDJSONAcceptsIMUserID(t *testing.T) {
	var body struct {
		RecorderUserID  userID   `json:"recorder_user_id"`
		AttendeeUserIDs []userID `json:"attendee_user_ids"`
	}
	raw := []byte(`{"recorder_user_id":"usrag7w9xJ6hto","attendee_user_ids":["usr1RqTFgHSenM"]}`)
	if err := json.Unmarshal(raw, &body); err != nil {
		t.Fatalf("unmarshal: %v", err)
	}
	if body.RecorderUserID == 0 || len(body.AttendeeUserIDs) != 1 || body.AttendeeUserIDs[0] == 0 {
		t.Fatalf("decoded zero ids: %+v", body)
	}
	if got := formatUserID(int64(body.RecorderUserID)); got != "usrag7w9xJ6hto" {
		t.Fatalf("roundtrip recorder=%q", got)
	}
}

func TestUserIDCodecMatchesIMServer(t *testing.T) {
	const (
		publicID = "usrOj2NWDNdlMU"
		dbID     = int64(1574592702383656960)
	)
	got, err := parseUserID(publicID)
	if err != nil {
		t.Fatalf("parseUserID: %v", err)
	}
	if got != dbID {
		t.Fatalf("parseUserID(%q)=%d, want %d", publicID, got, dbID)
	}
	if formatted := formatUserID(dbID); formatted != publicID {
		t.Fatalf("formatUserID(%d)=%q, want %q", dbID, formatted, publicID)
	}
}

func TestUserIDJSONRejectsNumericID(t *testing.T) {
	var id userID
	if err := json.Unmarshal([]byte(`1573862062872858624`), &id); err == nil {
		t.Fatal("expected numeric user id to be rejected")
	}
}