package service

import (
	"context"
	"errors"
	"os"
	"testing"

	assetPb "github.com/topfans/backend/pkg/proto/asset"
	"github.com/topfans/backend/pkg/logger"
	"github.com/topfans/backend/services/socialService/client"
	"github.com/stretchr/testify/assert"
)

// TestMain 在测试启动时初始化 logger（service 代码内部使用 logger.Logger）
func TestMain(m *testing.M) {
	_ = logger.Init(logger.Config{ServiceName: "social-service-test", Environment: "test"})
	os.Exit(m.Run())
}

// TestFireLikeNotification_OwnerUidZero_Skips
// 验证 owner_uid <= 0 时直接跳过，不调用 mock client
func TestFireLikeNotification_OwnerUidZero_Skips(t *testing.T) {
	mock := &client.MockNotificationClient{}
	svc := &AssetLikeService{notificationClient: mock}
	ctx := context.Background()

	asset := &assetPb.GetAssetForRPCResponse{
		AssetId:  1,
		OwnerUid: 0,
		Name:     "some-asset",
		CoverUrl: "https://example.com/cover.png",
	}

	svc.fireLikeNotification(ctx, asset, 1, 2, 1)

	assert.Equal(t, int32(0), mock.CreateCallCount, "notification client should NOT be called when owner_uid is invalid")
}

// TestFireLikeNotification_NilAsset_Skips
// 防御 nil asset 入参
func TestFireLikeNotification_NilAsset_Skips(t *testing.T) {
	mock := &client.MockNotificationClient{}
	svc := &AssetLikeService{notificationClient: mock}
	ctx := context.Background()

	svc.fireLikeNotification(ctx, nil, 1, 2, 1)

	assert.Equal(t, int32(0), mock.CreateCallCount, "notification client should NOT be called when asset is nil")
}

// TestFireLikeNotification_NilClient_Skips
// 防御 nil notificationClient 配置
func TestFireLikeNotification_NilClient_Skips(t *testing.T) {
	svc := &AssetLikeService{notificationClient: nil}
	ctx := context.Background()
	asset := &assetPb.GetAssetForRPCResponse{
		AssetId:  1,
		OwnerUid: 100,
		Name:     "x",
		CoverUrl: "y",
	}

	// 应直接 return，不 panic
	svc.fireLikeNotification(ctx, asset, 1, 2, 1)
}

// TestFireLikeNotification_ClientErr_JustLogs
// 验证 notification client 报错时不 panic，不影响主路径
// 这是核心需求："通知调用失败不能影响点赞主路径"
func TestFireLikeNotification_ClientErr_JustLogs(t *testing.T) {
	mock := &client.MockNotificationClient{CreateErr: errors.New("rpc down")}
	svc := &AssetLikeService{notificationClient: mock}
	ctx := context.Background()

	asset := &assetPb.GetAssetForRPCResponse{
		AssetId:  1,
		OwnerUid: 100,
		Name:     "藏品A",
		CoverUrl: "https://cdn.example.com/a.png",
	}

	// 不应 panic
	svc.fireLikeNotification(ctx, asset, 1, 2, 1)

	assert.Equal(t, int32(1), mock.CreateCallCount, "notification client should be called exactly once")
	assert.NotNil(t, mock.LastRequest, "LastRequest should be recorded")
}

// TestFireLikeNotification_Success_BuildsCorrectRequest
// 验证 happy path：构造的 request 字段全部正确
func TestFireLikeNotification_Success_BuildsCorrectRequest(t *testing.T) {
	mock := &client.MockNotificationClient{}
	svc := &AssetLikeService{notificationClient: mock}
	ctx := context.Background()

	asset := &assetPb.GetAssetForRPCResponse{
		AssetId:  42,
		OwnerUid: 100,
		Name:     "藏品X",
		CoverUrl: "https://cdn.example.com/x.png",
	}

	svc.fireLikeNotification(ctx, asset, 42, 7, 3)

	assert.Equal(t, int32(1), mock.CreateCallCount)
	req := mock.LastRequest
	if assert.NotNil(t, req) {
		assert.Equal(t, int64(100), req.UserId, "通知收件人应为资产 owner")
		assert.Equal(t, int64(3), req.StarId)
		assert.Equal(t, "like", req.Type)
		assert.Equal(t, "新点赞", req.Title)
		assert.Contains(t, req.Content, "7", "Content 应包含 actor userID")
		assert.NotNil(t, req.Data, "Data 结构体不能为空")
	}
}