// Copyright 2026 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT

package credstore

import (
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
	"github.com/zalando/go-keyring"
)

func TestKeyringStoreSaveAndLoad(t *testing.T) {
	keyring.MockInit()
	store := NewStringKeyringStore("test-service")

	require.NoError(t, store.Save("my-client", "eyJhbGciOiJSUzI1NiJ9"))

	loaded, err := store.Load("my-client")
	require.NoError(t, err)
	assert.Equal(t, "eyJhbGciOiJSUzI1NiJ9", loaded)
}

func TestKeyringStoreLoadNotFound(t *testing.T) {
	keyring.MockInit()
	store := NewStringKeyringStore("test-service")

	_, err := store.Load("nonexistent")
	assert.ErrorIs(t, err, ErrNotFound)
}

func TestKeyringStoreDelete(t *testing.T) {
	keyring.MockInit()
	store := NewStringKeyringStore("test-service")

	require.NoError(t, store.Save("test-client", "test-token"))
	require.NoError(t, store.Delete("test-client"))

	_, err := store.Load("test-client")
	assert.ErrorIs(t, err, ErrNotFound)
}

func TestKeyringStoreDeleteNonexistent(t *testing.T) {
	keyring.MockInit()
	store := NewStringKeyringStore("test-service")

	// Should not error when deleting nonexistent key
	assert.NoError(t, store.Delete("nonexistent"))
}

func TestKeyringStoreOverwriteExisting(t *testing.T) {
	keyring.MockInit()
	store := NewStringKeyringStore("test-service")

	require.NoError(t, store.Save("test-client", "token-v1"))
	require.NoError(t, store.Save("test-client", "token-v2"))

	loaded, err := store.Load("test-client")
	require.NoError(t, err)
	assert.Equal(t, "token-v2", loaded)
}

func TestKeyringStoreSaveEmptyClientID(t *testing.T) {
	keyring.MockInit()
	store := NewStringKeyringStore("test-service")

	err := store.Save("", "tok")
	assert.ErrorIs(t, err, ErrEmptyClientID)
}

func TestKeyringStoreString(t *testing.T) {
	store := NewStringKeyringStore("my-service")
	assert.Equal(t, "keyring: my-service", store.String())
}

func TestKeyringStoreNilCodecPanics(t *testing.T) {
	assert.Panics(t, func() {
		NewKeyringStore[string]("svc", nil)
	})
}