115 lines
4.7 KiB
Go
115 lines
4.7 KiB
Go
package usecase
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import (
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"context"
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"encoding/json"
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"fmt"
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"strings"
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"apps/backend/internal/module/radar/domain"
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usageDomain "apps/backend/internal/module/usage/domain"
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)
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type demandMapEnrichment struct {
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PainPhrases []domain.DemandMapPhrase `json:"pain_phrases"`
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ScenarioPhrases []domain.DemandMapPhrase `json:"scenario_phrases"`
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DesiredOutcomes []domain.DemandMapPhrase `json:"desired_outcomes"`
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SolutionSignals []domain.DemandMapPhrase `json:"solution_signals"`
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ExclusionSignals []domain.DemandMapPhrase `json:"exclusion_signals"`
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CustomPhrases []domain.DemandMapPhrase `json:"custom_phrases"`
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}
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func (s *Service) EnrichDemandMap(ctx context.Context, ownerUID int64, productID, previewID string, expectedVersion int64, creditCeiling int) (out *domain.DemandMap, err error) {
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if ownerUID <= 0 || strings.TrimSpace(productID) == "" {
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return nil, fmt.Errorf("%w: owner and product are required", domain.ErrValidation)
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}
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if expectedVersion < 1 {
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return nil, fmt.Errorf("%w: expected map version required", domain.ErrValidation)
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}
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if creditCeiling < 1 {
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return nil, fmt.Errorf("%w: credit ceiling must be positive", domain.ErrValidation)
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}
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current, err := s.GetDemandMap(ctx, ownerUID, productID)
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if err != nil {
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return nil, err
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}
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charge, err := s.bill(ctx, ownerUID, usageDomain.MeterAICopy, "需求地圖 AI 補全", "radar.demand_map_enrich")
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if err != nil {
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return nil, err
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}
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defer charge.Settle(ctx, &err)
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if s.AI == nil && s.AIRegistry == nil && s.ResolveAI == nil {
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return nil, fmt.Errorf("%w: AI provider unavailable", domain.ErrNotReady)
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}
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prompt := fmt.Sprintf("請只輸出 JSON 物件，根據需求地圖補充使用者會說的短詞，不要使用品牌或產品名稱。痛點=%q；情境=%q；結果=%q；能力=%q。欄位為 pain_phrases、scenario_phrases、desired_outcomes、solution_signals、exclusion_signals、custom_phrases，每則含 text、kind、basis_kind、basis_text、origin=ai、enabled=true。include 類 text 必須是 Threads 可搜短詞：最多 2 個 token、中文每 token 2–4 字、去空格後 ≤12 字、禁止標點。", phraseTexts(current.PainPhrases), phraseTexts(current.ScenarioPhrases), phraseTexts(current.DesiredOutcomes), phraseTexts(current.SolutionSignals))
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raw, err := s.completeAI(ctx, ownerUID, prompt)
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if err != nil {
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return nil, err
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}
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var additions demandMapEnrichment
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start, end := strings.Index(raw, "{"), strings.LastIndex(raw, "}")
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if start < 0 || end <= start || json.Unmarshal([]byte(raw[start:end+1]), &additions) != nil {
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return nil, fmt.Errorf("%w: AI returned invalid demand map JSON", domain.ErrValidation)
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}
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mergePhrases := func(existing []domain.DemandMapPhrase, incoming []domain.DemandMapPhrase) []domain.DemandMapPhrase {
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out := append([]domain.DemandMapPhrase(nil), existing...)
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seen := map[string]bool{}
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for _, p := range out {
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seen[strings.ToLower(strings.TrimSpace(p.Text))] = true
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}
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for _, p := range incoming {
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p.Text = strings.TrimSpace(p.Text)
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p.Origin = "ai"
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p.Enabled = p.Enabled && p.Text != ""
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if !p.Enabled {
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continue
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}
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texts := []string{p.Text}
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if p.Kind != "exclusion" {
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texts = domain.SearchableTermVariants(p.Text, true)
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if len(texts) > domain.MaxSearchableVariantsPerTerm {
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texts = texts[:domain.MaxSearchableVariantsPerTerm]
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}
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}
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basis := strings.TrimSpace(p.BasisText)
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if basis == "" {
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basis = p.Text
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}
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for _, text := range texts {
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key := strings.ToLower(text)
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if text == "" || seen[key] {
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continue
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}
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cp := p
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cp.Text = text
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cp.BasisText = basis
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out = append(out, cp)
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seen[key] = true
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}
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}
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return out
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}
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current.PainPhrases = mergePhrases(current.PainPhrases, additions.PainPhrases)
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current.ScenarioPhrases = mergePhrases(current.ScenarioPhrases, additions.ScenarioPhrases)
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current.DesiredOutcomes = mergePhrases(current.DesiredOutcomes, additions.DesiredOutcomes)
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current.SolutionSignals = mergePhrases(current.SolutionSignals, additions.SolutionSignals)
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current.ExclusionSignals = mergePhrases(current.ExclusionSignals, additions.ExclusionSignals)
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current.CustomPhrases = mergePhrases(current.CustomPhrases, additions.CustomPhrases)
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current.AIEnrichedAt = domain.NowNano()
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if current.State != "ready" && len(current.PainPhrases) > 0 && len(current.ScenarioPhrases) > 0 && len(current.SolutionSignals) > 0 {
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current.State = "ready"
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}
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_ = previewID // preview is a client confirmation token; no credit is reserved by preview.
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return s.UpdateDemandMap(ctx, ownerUID, current, expectedVersion)
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}
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func phraseTexts(in []domain.DemandMapPhrase) []string {
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out := make([]string, 0, len(in))
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for _, p := range in {
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if p.Enabled && strings.TrimSpace(p.Text) != "" {
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out = append(out, strings.TrimSpace(p.Text))
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}
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}
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return out
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}
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