758 lines
25 KiB
Go
758 lines
25 KiB
Go
package app
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"net/url"
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"strings"
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"time"
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"github.com/jackc/pgx/v5/pgxpool"
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"go.uber.org/zap"
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"github.com/geo-platform/tenant-api/internal/shared/auth"
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sharedcache "github.com/geo-platform/tenant-api/internal/shared/cache"
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"github.com/geo-platform/tenant-api/internal/shared/config"
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"github.com/geo-platform/tenant-api/internal/shared/llm"
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"github.com/geo-platform/tenant-api/internal/shared/messaging/rabbitmq"
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"github.com/geo-platform/tenant-api/internal/shared/response"
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"github.com/geo-platform/tenant-api/internal/shared/stream"
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"github.com/geo-platform/tenant-api/internal/tenant/prompts"
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"github.com/geo-platform/tenant-api/internal/tenant/repository"
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)
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const (
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articleImitationTaskType = "imitation"
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articleImitationSourceType = "imitation"
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articleImitationFallbackTitle = "仿写文章生成中"
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maxImitationSourceContentRunes = 24000
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defaultImitationWebSearchLimit = int32(5)
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)
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type ArticleImitationService struct {
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pool *pgxpool.Pool
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llm llm.Client
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rabbitMQ *rabbitmq.Client
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knowledge *KnowledgeService
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streams *stream.GenerationHub
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cfg generationRuntimeConfig
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configProvider runtimeConfigProvider
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cache sharedcache.Cache
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logger *zap.Logger
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}
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type GenerateImitationRequest struct {
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SourceURL string `json:"source_url" binding:"required"`
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SourceTitle string `json:"source_title"`
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Locale string `json:"locale"`
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Industry string `json:"industry"`
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BrandName string `json:"brand_name"`
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Region string `json:"region"`
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TargetAudience string `json:"target_audience"`
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ContentGoal string `json:"content_goal"`
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Tone string `json:"tone"`
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LengthGoal string `json:"length_goal"`
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Keywords []string `json:"keywords"`
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PreservePoints string `json:"preserve_points"`
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AvoidPoints string `json:"avoid_points"`
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ExtraRequirements string `json:"extra_requirements"`
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EnableWebSearch bool `json:"enable_web_search"`
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WebSearchLimit *int32 `json:"web_search_limit"`
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KnowledgeGroupIDs []int64 `json:"knowledge_group_ids"`
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}
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type GenerateImitationResponse struct {
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ArticleID int64 `json:"article_id"`
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TaskID int64 `json:"task_id"`
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}
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type articleImitationJob struct {
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OperatorID int64
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TenantID int64
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ArticleID int64
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TaskID int64
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ReservationID int64
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InputParams map[string]interface{}
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InitialTitle string
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WebSearch llm.WebSearchOptions
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}
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func NewArticleImitationService(
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pool *pgxpool.Pool,
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llmClient llm.Client,
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rabbitMQClient *rabbitmq.Client,
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knowledge *KnowledgeService,
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streams *stream.GenerationHub,
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cfg config.GenerationConfig,
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llmMaxOutputTokens int64,
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) *ArticleImitationService {
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return &ArticleImitationService{
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pool: pool,
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llm: llmClient,
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rabbitMQ: rabbitMQClient,
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knowledge: knowledge,
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streams: streams,
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cfg: generationRuntimeFromConfig(cfg, config.LLMConfig{MaxOutputTokens: llmMaxOutputTokens}),
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}
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}
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func (s *ArticleImitationService) WithCache(c sharedcache.Cache) *ArticleImitationService {
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s.cache = c
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return s
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}
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func (s *ArticleImitationService) WithConfigProvider(provider runtimeConfigProvider) *ArticleImitationService {
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s.configProvider = provider
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return s
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}
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func (s *ArticleImitationService) WithLogger(logger *zap.Logger) *ArticleImitationService {
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s.logger = logger
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return s
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}
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func (s *ArticleImitationService) runtimeConfig() generationRuntimeConfig {
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if s != nil && s.configProvider != nil {
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if cfg := s.configProvider.Current(); cfg != nil {
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return generationRuntimeFromConfig(cfg.Generation, cfg.LLM)
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}
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}
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if s == nil {
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return generationRuntimeFromConfig(config.GenerationConfig{}, config.LLMConfig{})
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}
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return s.cfg
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}
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func (s *ArticleImitationService) Generate(ctx context.Context, req GenerateImitationRequest) (*GenerateImitationResponse, error) {
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actor := auth.MustActor(ctx)
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if err := s.llm.Validate(); err != nil {
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return nil, response.ErrServiceUnavailable(50311, "llm_unavailable", err.Error())
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}
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sourceURL, err := normalizeImitationSourceURL(req.SourceURL)
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if err != nil {
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return nil, err
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}
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quotaRepo := repository.NewQuotaRepository(s.pool)
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balance, err := quotaRepo.GetCurrentBalance(ctx, actor.TenantID, "article_generation")
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if err != nil || balance < 1 {
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return nil, response.ErrForbidden(40301, "quota_insufficient", "generation quota insufficient, please upgrade your plan")
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}
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inputParams := buildImitationInputParams(sourceURL, req)
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inputJSON, _ := json.Marshal(inputParams)
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initialTitle := buildImitationInitialTitle(req.SourceTitle)
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wizardStateJSON, _ := json.Marshal(map[string]interface{}{
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"title": initialTitle,
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"source_url": sourceURL,
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"source_title": strings.TrimSpace(req.SourceTitle),
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"current_step": 0,
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})
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tx, err := s.pool.Begin(ctx)
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if err != nil {
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return nil, response.ErrInternal(50012, "create_failed", "failed to begin generation transaction")
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}
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defer func() {
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_ = tx.Rollback(ctx)
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}()
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quotaTx := repository.NewQuotaRepository(tx)
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auditTx := repository.NewAuditRepository(tx)
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newBalance := balance - 1
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reason := "generation_reserve"
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referenceType := "generation_task"
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_, err = quotaTx.InsertQuotaLedger(ctx, repository.QuotaLedgerInput{
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TenantID: actor.TenantID,
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OperatorID: actor.UserID,
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QuotaType: "article_generation",
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Delta: -1,
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BalanceAfter: newBalance,
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Reason: &reason,
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ReferenceType: &referenceType,
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})
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if err != nil {
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return nil, response.ErrInternal(50012, "create_failed", "failed to reserve generation quota")
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}
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reservationID, err := quotaTx.CreateQuotaReservation(ctx, repository.QuotaReservationInput{
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TenantID: actor.TenantID,
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OperatorID: actor.UserID,
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QuotaType: "article_generation",
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ResourceType: "article",
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ResourceID: nil,
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ReservedAmount: 1,
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ExpireAt: time.Now().Add(time.Hour),
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})
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if err != nil {
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return nil, response.ErrInternal(50012, "create_failed", "failed to create quota reservation")
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}
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var articleID int64
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err = tx.QueryRow(ctx, `
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INSERT INTO articles (tenant_id, source_type, generate_status, publish_status, wizard_state_json)
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VALUES ($1, $2, 'generating', 'unpublished', $3)
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RETURNING id
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`, actor.TenantID, articleImitationSourceType, wizardStateJSON).Scan(&articleID)
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if err != nil {
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return nil, response.ErrInternal(50012, "create_failed", "failed to create imitation article")
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}
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if err := quotaTx.UpdateQuotaReservationResource(ctx, reservationID, actor.TenantID, articleID); err != nil {
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return nil, response.ErrInternal(50012, "create_failed", "failed to update quota reservation resource")
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}
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taskID, err := auditTx.CreateGenerationTask(ctx, repository.GenerationTaskInput{
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OperatorID: actor.UserID,
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TenantID: actor.TenantID,
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ArticleID: &articleID,
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QuotaReservationID: &reservationID,
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TaskType: articleImitationTaskType,
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InputParamsJSON: inputJSON,
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})
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if err != nil {
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return nil, response.ErrInternal(50012, "create_failed", "failed to create generation task")
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}
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if err := tx.Commit(ctx); err != nil {
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return nil, response.ErrInternal(50012, "create_failed", "failed to commit generation task")
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}
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invalidateArticleCaches(ctx, s.cache, actor.TenantID, &articleID)
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job := articleImitationJob{
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OperatorID: actor.UserID,
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TenantID: actor.TenantID,
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ArticleID: articleID,
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TaskID: taskID,
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ReservationID: reservationID,
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InputParams: inputParams,
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InitialTitle: initialTitle,
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WebSearch: llm.WebSearchOptions{
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Enabled: req.EnableWebSearch,
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},
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}
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if req.WebSearchLimit != nil && *req.WebSearchLimit > 0 {
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job.WebSearch.Limit = *req.WebSearchLimit
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} else if req.EnableWebSearch {
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job.WebSearch.Limit = defaultImitationWebSearchLimit
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}
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if err := publishArticleGenerationTask(ctx, s.rabbitMQ, articleGenerationTaskEnvelope{
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TaskID: taskID,
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TaskType: articleImitationTaskType,
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TenantID: actor.TenantID,
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ArticleID: articleID,
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}); err != nil {
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RecordGenerationTaskEvent(GenerationTaskEventQueueFailure, articleImitationJobLogContext(job, "queue_enqueue", "queued", "failed", GenerationTaskResultFailure))
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s.failGeneration(context.Background(), job, "queue_enqueue", err)
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return nil, response.ErrServiceUnavailable(50310, "generation_queue_unavailable", "generation queue is busy, please retry")
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}
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runtimeCfg := s.runtimeConfig()
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if runtimeCfg.StreamEnabled && s.streams != nil {
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s.streams.Start(articleID, taskID, initialTitle)
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}
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return &GenerateImitationResponse{ArticleID: articleID, TaskID: taskID}, nil
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}
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func (s *ArticleImitationService) ProcessQueuedTask(ctx context.Context, task ClaimedGenerationTask) {
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inputParams := cloneInputParams(task.InputParams)
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job := articleImitationJob{
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OperatorID: task.OperatorID,
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TenantID: task.TenantID,
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ArticleID: task.ArticleID,
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TaskID: task.ID,
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ReservationID: task.QuotaReservationID,
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InputParams: inputParams,
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InitialTitle: buildImitationInitialTitle(extractString(inputParams, "source_title")),
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WebSearch: llm.WebSearchOptions{
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Enabled: extractBool(inputParams, "enable_web_search"),
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},
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}
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if limit := extractInt(inputParams, "web_search_limit"); limit > 0 {
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job.WebSearch.Limit = int32(limit)
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} else if job.WebSearch.Enabled {
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job.WebSearch.Limit = defaultImitationWebSearchLimit
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}
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s.executeGeneration(ctx, job)
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}
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func (s *ArticleImitationService) HandleTaskFailure(ctx context.Context, task ClaimedGenerationTask, stage string, taskErr error) {
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job := articleImitationJob{
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OperatorID: task.OperatorID,
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TenantID: task.TenantID,
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ArticleID: task.ArticleID,
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TaskID: task.ID,
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ReservationID: task.QuotaReservationID,
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InputParams: cloneInputParams(task.InputParams),
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InitialTitle: buildImitationInitialTitle(extractString(task.InputParams, "source_title")),
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}
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s.failGeneration(ctx, job, stage, taskErr)
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}
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func (s *ArticleImitationService) executeGeneration(ctx context.Context, job articleImitationJob) {
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now := time.Now()
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title := strings.TrimSpace(job.InitialTitle)
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if title == "" {
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title = articleImitationFallbackTitle
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}
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auditRepo := repository.NewAuditRepository(s.pool)
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if err := auditRepo.UpdateGenerationTaskStatus(ctx, repository.GenerationTaskStatusInput{
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ID: job.TaskID,
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TenantID: job.TenantID,
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Status: "running",
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StartedAt: &now,
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}); err != nil {
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s.failGeneration(ctx, job, "task_status_running", err)
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return
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}
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RecordGenerationTaskEvent(GenerationTaskEventTransition, articleImitationJobLogContext(job, "task_status_running", "", GenerationTaskStatusRunning, GenerationTaskResultSuccess))
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LogGenerationTaskInfo(s.logger, "article generation task marked running", articleImitationJobLogContext(job, "task_status_running", "", GenerationTaskStatusRunning, GenerationTaskResultSuccess))
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sourceURL := strings.TrimSpace(extractString(job.InputParams, "source_url"))
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if sourceURL == "" {
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s.failGeneration(ctx, job, "task_load", fmt.Errorf("source_url is required"))
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return
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}
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if s.knowledge == nil {
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s.failGeneration(ctx, job, "source_fetch", fmt.Errorf("knowledge service is not configured"))
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return
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}
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parsed, err := s.knowledge.parseWebsiteKnowledge(ctx, sourceURL)
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if err != nil {
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s.failGeneration(ctx, job, "source_fetch", err)
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return
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}
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sourceContent := truncateRunes(strings.TrimSpace(parsed.Markdown), maxImitationSourceContentRunes)
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if sourceContent == "" {
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sourceContent = truncateRunes(strings.TrimSpace(parsed.Text), maxImitationSourceContentRunes)
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}
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if sourceContent == "" {
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s.failGeneration(ctx, job, "source_fetch", fmt.Errorf("source article content is empty"))
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return
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}
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knowledgePrompt := ""
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if knowledgeGroupIDs := extractKnowledgeGroupIDs(job.InputParams["knowledge_group_ids"]); len(knowledgeGroupIDs) > 0 {
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if s.knowledge == nil {
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s.failGeneration(ctx, job, "knowledge_resolve", fmt.Errorf("knowledge service is not configured"))
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return
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}
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knowledgeContext, resolveErr := s.knowledge.ResolveContext(
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ctx,
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job.TenantID,
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knowledgeGroupIDs,
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buildImitationKnowledgeQuery(job.InputParams),
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)
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if resolveErr != nil {
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s.failGeneration(ctx, job, "knowledge_resolve", resolveErr)
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return
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}
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knowledgePrompt = s.knowledge.RenderPromptSection(knowledgeContext)
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}
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prompt := buildImitationGenerationPrompt(job.InputParams, sourceContent, knowledgePrompt)
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runtimeCfg := s.runtimeConfig()
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req := llm.GenerateRequest{
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Prompt: prompt,
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Timeout: runtimeCfg.ArticleTimeout,
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MaxOutputTokens: runtimeCfg.MaxOutputTokens,
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}
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if job.WebSearch.Enabled {
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req.WebSearch = &job.WebSearch
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}
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result, err := s.llm.Generate(ctx, req, func(delta string) {
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if runtimeCfg.StreamEnabled && s.streams != nil && delta != "" {
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s.streams.AppendDelta(job.ArticleID, job.TaskID, title, delta)
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}
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})
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if err != nil {
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s.failGeneration(ctx, job, "llm_generate", err)
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return
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}
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content := strings.TrimSpace(result.Content)
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if content == "" {
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s.failGeneration(ctx, job, "llm_generate", fmt.Errorf("模型返回空内容"))
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return
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}
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title = resolveGeneratedImitationTitle(content, job.InputParams)
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wordCount := estimateWordCount(content)
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tx, err := s.pool.Begin(ctx)
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if err != nil {
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s.failGeneration(ctx, job, "persist_begin_tx", err)
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return
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}
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defer rollbackGenerationTx(tx)
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failWithRollback := func(stage string, err error) {
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rollbackGenerationTx(tx)
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s.failGeneration(ctx, job, stage, err)
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}
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articleRepo := repository.NewArticleRepository(tx)
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quotaRepo := repository.NewQuotaRepository(tx)
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auditTx := repository.NewAuditRepository(tx)
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versionID, err := articleRepo.CreateArticleVersion(ctx, repository.CreateArticleVersionInput{
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ArticleID: job.ArticleID,
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VersionNo: 1,
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Title: title,
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HTMLContent: "",
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MarkdownContent: content,
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WordCount: wordCount,
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SourceLabel: result.Model,
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})
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if err != nil {
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failWithRollback("persist_create_version", err)
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return
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}
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if err := articleRepo.UpdateArticleCurrentVersion(ctx, job.ArticleID, job.TenantID, versionID); err != nil {
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failWithRollback("persist_current_version", err)
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return
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}
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if err := articleRepo.UpdateArticleGenerateStatus(ctx, job.ArticleID, job.TenantID, "completed"); err != nil {
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failWithRollback("persist_article_status", err)
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return
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}
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completed := time.Now()
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if err := auditTx.UpdateGenerationTaskStatus(ctx, repository.GenerationTaskStatusInput{
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ID: job.TaskID,
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TenantID: job.TenantID,
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Status: "completed",
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StartedAt: &now,
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CompletedAt: &completed,
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}); err != nil {
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failWithRollback("persist_task_status", err)
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return
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}
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if err := quotaRepo.ConfirmReservation(ctx, job.ReservationID, job.TenantID); err != nil {
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failWithRollback("confirm_reservation", err)
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return
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}
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if err := tx.Commit(ctx); err != nil {
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failWithRollback("persist_commit", err)
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return
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}
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cleanupCtx, cancel := newGenerationCleanupContext()
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defer cancel()
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invalidateArticleCaches(cleanupCtx, s.cache, job.TenantID, &job.ArticleID)
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if runtimeCfg.StreamEnabled && s.streams != nil {
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s.streams.Complete(job.ArticleID, job.TaskID, title, content)
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}
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}
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func (s *ArticleImitationService) failGeneration(ctx context.Context, job articleImitationJob, stage string, genErr error) {
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cleanupCtx, cancel := newGenerationCleanupContext()
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defer cancel()
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errMsg := formatGenerationFailure(stage, genErr)
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now := time.Now()
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logCtx := articleImitationJobLogContext(job, stage, "", "failed", GenerationTaskResultFailure)
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RecordGenerationTaskEvent(GenerationTaskEventFailure, logCtx)
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LogGenerationTaskWarn(s.logger, "imitation generation failed", logCtx, zap.Error(genErr))
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title := strings.TrimSpace(job.InitialTitle)
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if title == "" {
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title = articleImitationFallbackTitle
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}
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auditRepo := repository.NewAuditRepository(s.pool)
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articleRepo := repository.NewArticleRepository(s.pool)
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quotaRepo := repository.NewQuotaRepository(s.pool)
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var cleanupErr error
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if err := auditRepo.UpdateGenerationTaskStatus(cleanupCtx, repository.GenerationTaskStatusInput{
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ID: job.TaskID,
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TenantID: job.TenantID,
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Status: "failed",
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ErrorMessage: &errMsg,
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CompletedAt: &now,
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}); err != nil && s.logger != nil {
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s.logger.Warn("imitation generation task failed status update failed",
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zap.Error(err),
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zap.Int64("task_id", job.TaskID),
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zap.Int64("article_id", job.ArticleID),
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zap.String("stage", stage),
|
||
)
|
||
cleanupErr = errors.Join(cleanupErr, fmt.Errorf("update generation task failed status: %w", err))
|
||
}
|
||
if job.ArticleID > 0 {
|
||
if err := articleRepo.UpdateArticleGenerateStatus(cleanupCtx, job.ArticleID, job.TenantID, "failed"); err != nil && s.logger != nil {
|
||
s.logger.Warn("imitation generation article failed status update failed",
|
||
zap.Error(err),
|
||
zap.Int64("task_id", job.TaskID),
|
||
zap.Int64("article_id", job.ArticleID),
|
||
zap.String("stage", stage),
|
||
)
|
||
cleanupErr = errors.Join(cleanupErr, fmt.Errorf("update article failed status: %w", err))
|
||
}
|
||
_, _ = s.pool.Exec(cleanupCtx, `
|
||
UPDATE articles
|
||
SET wizard_state_json = jsonb_set(COALESCE(wizard_state_json, '{}'::jsonb), '{title}', to_jsonb($1::text), true),
|
||
updated_at = NOW()
|
||
WHERE id = $2 AND tenant_id = $3
|
||
`, title, job.ArticleID, job.TenantID)
|
||
}
|
||
|
||
if job.ReservationID > 0 {
|
||
balance, balanceErr := quotaRepo.GetCurrentBalance(cleanupCtx, job.TenantID, "article_generation")
|
||
if balanceErr != nil {
|
||
cleanupErr = errors.Join(cleanupErr, fmt.Errorf("load quota balance for refund: %w", balanceErr))
|
||
} else {
|
||
reason := "generation_refund"
|
||
referenceType := "generation_task"
|
||
taskReferenceID := job.TaskID
|
||
if _, err := quotaRepo.InsertQuotaLedger(cleanupCtx, repository.QuotaLedgerInput{
|
||
TenantID: job.TenantID,
|
||
OperatorID: job.OperatorID,
|
||
QuotaType: "article_generation",
|
||
Delta: 1,
|
||
BalanceAfter: balance + 1,
|
||
Reason: &reason,
|
||
ReferenceType: &referenceType,
|
||
ReferenceID: &taskReferenceID,
|
||
}); err != nil {
|
||
cleanupErr = errors.Join(cleanupErr, fmt.Errorf("insert generation refund ledger: %w", err))
|
||
}
|
||
}
|
||
if err := quotaRepo.RefundReservation(cleanupCtx, job.ReservationID, job.TenantID); err != nil {
|
||
cleanupErr = errors.Join(cleanupErr, fmt.Errorf("refund generation reservation: %w", err))
|
||
}
|
||
}
|
||
|
||
if job.ArticleID > 0 {
|
||
invalidateArticleCaches(cleanupCtx, s.cache, job.TenantID, &job.ArticleID)
|
||
}
|
||
if cleanupErr != nil {
|
||
RecordGenerationTaskEvent(GenerationTaskEventCleanupFailure, logCtx)
|
||
LogGenerationTaskError(s.logger, "imitation generation failure cleanup failed", logCtx, zap.Error(cleanupErr))
|
||
}
|
||
|
||
runtimeCfg := s.runtimeConfig()
|
||
if runtimeCfg.StreamEnabled && s.streams != nil && job.ArticleID > 0 {
|
||
s.streams.Fail(job.ArticleID, job.TaskID, title, errMsg)
|
||
}
|
||
}
|
||
|
||
func articleImitationJobLogContext(job articleImitationJob, stage, statusBefore, statusAfter, result string) GenerationTaskLogContext {
|
||
return GenerationTaskLogContext{
|
||
TaskID: job.TaskID,
|
||
TenantID: job.TenantID,
|
||
OperatorID: job.OperatorID,
|
||
ArticleID: job.ArticleID,
|
||
ReservationID: job.ReservationID,
|
||
TaskType: articleImitationTaskType,
|
||
Stage: stage,
|
||
StatusBefore: statusBefore,
|
||
StatusAfter: statusAfter,
|
||
Result: result,
|
||
}
|
||
}
|
||
|
||
func normalizeImitationSourceURL(raw string) (string, error) {
|
||
trimmed := strings.TrimSpace(raw)
|
||
if trimmed == "" {
|
||
return "", response.ErrBadRequest(40001, "source_url_required", "source_url is required")
|
||
}
|
||
parsed, err := url.Parse(trimmed)
|
||
if err != nil || parsed.Scheme == "" || parsed.Host == "" {
|
||
return "", response.ErrBadRequest(40001, "invalid_source_url", "source_url must be a valid URL")
|
||
}
|
||
if parsed.Scheme != "http" && parsed.Scheme != "https" {
|
||
return "", response.ErrBadRequest(40001, "invalid_source_url", "source_url must use http or https")
|
||
}
|
||
return parsed.String(), nil
|
||
}
|
||
|
||
func buildImitationInputParams(sourceURL string, req GenerateImitationRequest) map[string]interface{} {
|
||
params := map[string]interface{}{
|
||
"source_url": sourceURL,
|
||
"source_title": strings.TrimSpace(req.SourceTitle),
|
||
"locale": normalizeImitationLocale(req.Locale),
|
||
"industry": strings.TrimSpace(req.Industry),
|
||
"brand_name": strings.TrimSpace(req.BrandName),
|
||
"region": strings.TrimSpace(req.Region),
|
||
"target_audience": strings.TrimSpace(req.TargetAudience),
|
||
"content_goal": strings.TrimSpace(req.ContentGoal),
|
||
"tone": strings.TrimSpace(req.Tone),
|
||
"length_goal": strings.TrimSpace(req.LengthGoal),
|
||
"keywords": normalizeImitationKeywords(req.Keywords),
|
||
"preserve_points": strings.TrimSpace(req.PreservePoints),
|
||
"avoid_points": strings.TrimSpace(req.AvoidPoints),
|
||
"extra_requirements": strings.TrimSpace(req.ExtraRequirements),
|
||
"enable_web_search": req.EnableWebSearch,
|
||
"knowledge_group_ids": normalizeInt64IDs(req.KnowledgeGroupIDs),
|
||
}
|
||
if req.WebSearchLimit != nil && *req.WebSearchLimit > 0 {
|
||
params["web_search_limit"] = *req.WebSearchLimit
|
||
}
|
||
return params
|
||
}
|
||
|
||
func buildImitationInitialTitle(sourceTitle string) string {
|
||
title := strings.TrimSpace(sourceTitle)
|
||
if title == "" {
|
||
return articleImitationFallbackTitle
|
||
}
|
||
return "仿写：" + title
|
||
}
|
||
|
||
func buildImitationGenerationPrompt(params map[string]interface{}, sourceContent string, knowledgePrompt string) string {
|
||
locale := normalizeImitationLocale(extractString(params, "locale"))
|
||
sourceTitle := strings.TrimSpace(extractString(params, "source_title"))
|
||
sourceURL := strings.TrimSpace(extractString(params, "source_url"))
|
||
keywords := extractStringList(params["keywords"], 16)
|
||
knowledgePrompt = strings.TrimSpace(knowledgePrompt)
|
||
|
||
var sourceMeta strings.Builder
|
||
if sourceTitle != "" {
|
||
appendRawPromptLine(&sourceMeta, "标题", sourceTitle)
|
||
}
|
||
if sourceURL != "" {
|
||
appendRawPromptLine(&sourceMeta, "URL", sourceURL)
|
||
}
|
||
|
||
var settings strings.Builder
|
||
appendPromptLine(&settings, "industry", extractString(params, "industry"))
|
||
appendPromptLine(&settings, "brand_name", extractString(params, "brand_name"))
|
||
appendPromptLine(&settings, "region", extractString(params, "region"))
|
||
appendPromptLine(&settings, "target_audience", extractString(params, "target_audience"))
|
||
appendPromptLine(&settings, "content_goal", extractString(params, "content_goal"))
|
||
appendPromptLine(&settings, "tone", extractString(params, "tone"))
|
||
appendPromptLine(&settings, "length_goal", extractString(params, "length_goal"))
|
||
if len(keywords) > 0 {
|
||
appendPromptLine(&settings, "keywords", strings.Join(keywords, "、"))
|
||
}
|
||
appendPromptLine(&settings, "preserve_points", extractString(params, "preserve_points"))
|
||
appendPromptLine(&settings, "avoid_points", extractString(params, "avoid_points"))
|
||
appendPromptLine(&settings, "extra_requirements", extractString(params, "extra_requirements"))
|
||
|
||
knowledgeSection := ""
|
||
if knowledgePrompt != "" {
|
||
knowledgeSection = "## 知识库参考\n" + knowledgePrompt
|
||
}
|
||
|
||
return prompts.ArticleImitationPrompt(
|
||
locale,
|
||
sourceMeta.String(),
|
||
settings.String(),
|
||
knowledgeSection,
|
||
sourceContent,
|
||
)
|
||
}
|
||
|
||
func buildImitationKnowledgeQuery(params map[string]interface{}) string {
|
||
if len(params) == 0 {
|
||
return ""
|
||
}
|
||
|
||
parts := make([]string, 0, 8)
|
||
appendValue := func(value string) {
|
||
value = strings.TrimSpace(value)
|
||
if value == "" {
|
||
return
|
||
}
|
||
parts = append(parts, value)
|
||
}
|
||
|
||
appendValue(extractString(params, "source_title"))
|
||
appendValue(extractString(params, "industry"))
|
||
appendValue(extractString(params, "brand_name"))
|
||
appendValue(extractString(params, "region"))
|
||
appendValue(extractString(params, "target_audience"))
|
||
appendValue(extractString(params, "content_goal"))
|
||
appendValue(extractString(params, "tone"))
|
||
appendValue(strings.Join(extractStringList(params["keywords"], 16), "\n"))
|
||
appendValue(extractString(params, "extra_requirements"))
|
||
|
||
return strings.Join(parts, "\n")
|
||
}
|
||
|
||
func appendPromptLine(b *strings.Builder, label, value string) {
|
||
value = strings.TrimSpace(value)
|
||
if value == "" {
|
||
return
|
||
}
|
||
b.WriteString("- " + prompts.ArticleImitationSettingLabel(label) + "：" + value + "\n")
|
||
}
|
||
|
||
func appendRawPromptLine(b *strings.Builder, label, value string) {
|
||
value = strings.TrimSpace(value)
|
||
if value == "" {
|
||
return
|
||
}
|
||
b.WriteString("- " + label + "：" + value + "\n")
|
||
}
|
||
|
||
func resolveGeneratedImitationTitle(markdown string, params map[string]interface{}) string {
|
||
for _, line := range strings.Split(markdown, "\n") {
|
||
line = strings.TrimSpace(line)
|
||
if strings.HasPrefix(line, "#") {
|
||
title := strings.TrimSpace(strings.TrimLeft(line, "#"))
|
||
if title != "" {
|
||
return title
|
||
}
|
||
}
|
||
}
|
||
return buildImitationInitialTitle(extractString(params, "source_title"))
|
||
}
|
||
|
||
func normalizeImitationLocale(value string) string {
|
||
if strings.EqualFold(strings.TrimSpace(value), "en-US") {
|
||
return "en-US"
|
||
}
|
||
return "zh-CN"
|
||
}
|
||
|
||
func normalizeImitationKeywords(values []string) []string {
|
||
if len(values) == 0 {
|
||
return []string{}
|
||
}
|
||
seen := make(map[string]struct{}, len(values))
|
||
keywords := make([]string, 0, len(values))
|
||
for _, item := range values {
|
||
item = strings.TrimSpace(item)
|
||
if item == "" {
|
||
continue
|
||
}
|
||
key := strings.ToLower(item)
|
||
if _, exists := seen[key]; exists {
|
||
continue
|
||
}
|
||
seen[key] = struct{}{}
|
||
keywords = append(keywords, item)
|
||
if len(keywords) >= 16 {
|
||
break
|
||
}
|
||
}
|
||
return keywords
|
||
}
|
||
|
||
func truncateRunes(value string, maxRunes int) string {
|
||
if maxRunes <= 0 {
|
||
return value
|
||
}
|
||
runes := []rune(value)
|
||
if len(runes) <= maxRunes {
|
||
return value
|
||
}
|
||
return string(runes[:maxRunes])
|
||
}
|