fix(settings): restore wechat and payment config persistence

backend/internal/service/setting_service_wechat_config_test.go

@@ -0,0 +1,77 @@
+//go:build unit
+
+package service
+
+import (
+	"context"
+	"testing"
+
+	"github.com/Wei-Shaw/sub2api/internal/config"
+	"github.com/stretchr/testify/require"
+)
+
+type settingWeChatRepoStub struct {
+	values map[string]string
+}
+
+func (s *settingWeChatRepoStub) Get(context.Context, string) (*Setting, error) {
+	panic("unexpected Get call")
+}
+
+func (s *settingWeChatRepoStub) GetValue(_ context.Context, key string) (string, error) {
+	if value, ok := s.values[key]; ok {
+		return value, nil
+	}
+	return "", ErrSettingNotFound
+}
+
+func (s *settingWeChatRepoStub) Set(context.Context, string, string) error {
+	panic("unexpected Set call")
+}
+
+func (s *settingWeChatRepoStub) GetMultiple(_ context.Context, keys []string) (map[string]string, error) {
+	out := make(map[string]string, len(keys))
+	for _, key := range keys {
+		if value, ok := s.values[key]; ok {
+			out[key] = value
+		}
+	}
+	return out, nil
+}
+
+func (s *settingWeChatRepoStub) SetMultiple(context.Context, map[string]string) error {
+	panic("unexpected SetMultiple call")
+}
+
+func (s *settingWeChatRepoStub) GetAll(context.Context) (map[string]string, error) {
+	panic("unexpected GetAll call")
+}
+
+func (s *settingWeChatRepoStub) Delete(context.Context, string) error {
+	panic("unexpected Delete call")
+}
+
+func TestSettingService_GetWeChatConnectOAuthConfig_UsesDatabaseOverrides(t *testing.T) {
+	repo := &settingWeChatRepoStub{
+		values: map[string]string{
+			SettingKeyWeChatConnectEnabled:             "true",
+			SettingKeyWeChatConnectAppID:               "wx-db-app",
+			SettingKeyWeChatConnectAppSecret:           "wx-db-secret",
+			SettingKeyWeChatConnectMode:                "mp",
+			SettingKeyWeChatConnectScopes:              "snsapi_base",
+			SettingKeyWeChatConnectRedirectURL:         "https://api.example.com/api/v1/auth/oauth/wechat/callback",
+			SettingKeyWeChatConnectFrontendRedirectURL: "/auth/wechat/callback",
+		},
+	}
+	svc := NewSettingService(repo, &config.Config{})
+
+	got, err := svc.GetWeChatConnectOAuthConfig(context.Background())
+	require.NoError(t, err)
+	require.True(t, got.Enabled)
+	require.Equal(t, "wx-db-app", got.AppID)
+	require.Equal(t, "wx-db-secret", got.AppSecret)
+	require.Equal(t, "mp", got.Mode)
+	require.Equal(t, "snsapi_base", got.Scopes)
+	require.Equal(t, "https://api.example.com/api/v1/auth/oauth/wechat/callback", got.RedirectURL)
+	require.Equal(t, "/auth/wechat/callback", got.FrontendRedirectURL)
+}