Files
zarinpal-analytics-backend/internal/growthreport/adapter.go

284 lines
11 KiB
Go

package growthreport
import (
"context"
"encoding/json"
"fmt"
"time"
"git.amiirkhl.ir/starcoach-hackathon/zarinpal-analytics-backend/internal/growth"
"github.com/jackc/pgx/v5"
"github.com/jackc/pgx/v5/pgxpool"
)
type HistoricalWin struct {
growth.EventEffect
EventTitleFA string `json:"eventTitleFa"`
StartDate time.Time `json:"startDate"`
EndDate time.Time `json:"endDate"`
}
type PeerEvidence struct {
State growth.PeerState `json:"state"`
Reason growth.SuppressionReason `json:"reason,omitempty"`
EligiblePeerCount int `json:"eligiblePeerCount"`
CombinedPeerSessionCount int64 `json:"combinedPeerSessionCount"`
MedianPaidSessions int64 `json:"medianPaidSessions"`
PercentileBPS int64 `json:"percentileBps"`
}
type Evidence struct {
Events []UpcomingEvent `json:"events"`
MerchantContext MerchantContext `json:"merchantContext"`
}
// UpcomingEvent is calendar metadata only. It deliberately contains no
// payment forecast, historical-performance, or peer-comparison fields.
type UpcomingEvent struct {
EvidenceID string `json:"evidenceId"`
EventID string `json:"eventId"`
EventTitleFA string `json:"eventTitleFa"`
Date time.Time `json:"date"`
EventType string `json:"eventType"`
OfficialHoliday bool `json:"officialHoliday"`
MerchantCategories []string `json:"merchantCategories"`
BehavioralChannels []string `json:"behavioralChannels"`
}
// MerchantContext is the minimal, non-identifying business profile provided to
// the model so it can rank only the reviewed calendar candidates.
type MerchantContext struct {
Category string `json:"category"`
Niches []string `json:"niches"`
SalesChannels []string `json:"salesChannels"`
}
type Analysis struct {
Evidence Evidence
Encoded json.RawMessage
KnownEvidence map[string]struct{}
Fallback AICopy
ShouldCallAI bool
}
type Builder interface {
Build(ctx context.Context, merchantID int64, terminalID string) (Analysis, error)
}
type PostgreSQLBuilder struct {
pool *pgxpool.Pool
now func() time.Time
}
func NewPostgreSQLBuilder(pool *pgxpool.Pool) *PostgreSQLBuilder {
return &PostgreSQLBuilder{pool: pool, now: time.Now}
}
func (b *PostgreSQLBuilder) Build(ctx context.Context, merchantID int64, terminalID string) (Analysis, error) {
forecastStart := tehranToday(b.now())
merchantContext, err := b.loadMerchantContext(ctx, merchantID, terminalID)
if err != nil {
return Analysis{}, err
}
catalog, err := b.loadCatalog(ctx, merchantContext.terms(), forecastStart, 5)
if err != nil {
return Analysis{}, err
}
events := upcomingEvents(catalog, forecastStart, 5)
evidence := Evidence{Events: events, MerchantContext: merchantContext}
encoded, err := json.Marshal(evidence)
if err != nil {
return Analysis{}, fmt.Errorf("encoding deterministic growth evidence: %w", err)
}
known := map[string]struct{}{}
for _, event := range evidence.Events {
known[event.EvidenceID] = struct{}{}
}
return Analysis{Evidence: evidence, Encoded: encoded, KnownEvidence: known, Fallback: AICopy{EventRecommendations: fallbackEventRecommendations(events)}, ShouldCallAI: len(events) == 5}, nil
}
func upcomingEvents(catalog []growth.Event, start time.Time, limit int) []UpcomingEvent {
result := make([]UpcomingEvent, 0, limit)
for _, event := range catalog {
if event.StartDate.Before(start) {
continue
}
result = append(result, UpcomingEvent{
EvidenceID: "event:" + event.ID,
EventID: event.ID,
EventTitleFA: event.TitleFA,
Date: event.StartDate,
EventType: event.Family,
OfficialHoliday: event.OfficialHoliday,
MerchantCategories: append([]string(nil), event.Categories...),
BehavioralChannels: append([]string(nil), event.Tags...),
})
if len(result) == limit {
break
}
}
return result
}
func fallbackEventRecommendations(events []UpcomingEvent) []EventRecommendation {
limit := min(len(events), 3)
result := make([]EventRecommendation, 0, limit)
for _, event := range events[:limit] {
result = append(result, EventRecommendation{EvidenceID: event.EvidenceID, RelevanceReason: "این مناسبت در تقویم بررسی‌شده به‌عنوان رویدادی مرتبط با کسب‌وکار ثبت شده است."})
}
return result
}
func (b *PostgreSQLBuilder) loadMerchantContext(ctx context.Context, merchantID int64, terminalID string) (MerchantContext, error) {
var context MerchantContext
if err := b.pool.QueryRow(ctx, `SELECT category_title FROM merchants WHERE id=$1`, merchantID).Scan(&context.Category); err != nil {
return MerchantContext{}, fmt.Errorf("loading merchant category: %w", err)
}
var profileNiches, profileChannels []byte
profileErr := b.pool.QueryRow(ctx, `SELECT p.niches,p.sales_channels FROM growth_coach_profiles p
JOIN terminals t ON t.id=p.terminal_id
WHERE p.merchant_id=$1 AND ($2='' OR t.source_key=$2)
ORDER BY p.version DESC LIMIT 1`, merchantID, terminalID).Scan(&profileNiches, &profileChannels)
if profileErr == nil {
_ = json.Unmarshal(profileNiches, &context.Niches)
_ = json.Unmarshal(profileChannels, &context.SalesChannels)
} else if profileErr != pgx.ErrNoRows {
return MerchantContext{}, fmt.Errorf("loading growth event profile: %w", profileErr)
}
if context.Niches == nil {
context.Niches = []string{}
}
if context.SalesChannels == nil {
context.SalesChannels = []string{}
}
return context, nil
}
func (c MerchantContext) terms() []string {
terms := make([]string, 0, 1+len(c.Niches)+len(c.SalesChannels))
terms = append(terms, c.Category)
terms = append(terms, c.Niches...)
return append(terms, c.SalesChannels...)
}
func (b *PostgreSQLBuilder) loadCatalog(ctx context.Context, terms []string, from time.Time, limit int) ([]growth.Event, error) {
rows, err := b.pool.Query(ctx, `SELECT e.event_key,e.title_fa,e.start_date,e.end_date,e.event_type,e.official_holiday,
e.source_uri,e.source_version,e.merchant_categories,e.behavioral_channels
FROM calendar_events e JOIN calendar_catalog_versions v ON v.id=e.catalog_version_id AND v.status='ACTIVE'
WHERE e.start_date >= $1
AND (e.merchant_categories ?| $2::text[] OR e.behavioral_channels ?| $2::text[]
OR (e.event_type IN('COMMERCIAL','SEASONAL','EDUCATION','ECONOMIC') AND e.relevance_bps>=7000)
OR (e.official_holiday AND e.relevance_bps>=7000))
ORDER BY e.start_date,e.end_date,e.event_key LIMIT $3`, from, terms, limit)
if err != nil {
return nil, fmt.Errorf("loading reviewed growth event catalog: %w", err)
}
defer rows.Close()
var catalog []growth.Event
for rows.Next() {
var event growth.Event
var eventType string
var categoriesJSON, channelsJSON []byte
if err := rows.Scan(&event.ID, &event.TitleFA, &event.StartDate, &event.EndDate, &eventType, &event.OfficialHoliday, &event.Source, &event.SourceVersion, &categoriesJSON, &channelsJSON); err != nil {
return nil, fmt.Errorf("scanning reviewed growth event: %w", err)
}
_ = json.Unmarshal(categoriesJSON, &event.Categories)
_ = json.Unmarshal(channelsJSON, &event.Tags)
event.Family = eventType
event.Universal = len(event.Categories) == 0
if eventType == "COMMERCIAL" || eventType == "SEASONAL" || eventType == "EDUCATION" || eventType == "ECONOMIC" {
event.Kind = growth.EventCommercial
} else {
event.Kind = growth.EventOfficial
}
catalog = append(catalog, event)
}
if err := rows.Err(); err != nil {
return nil, fmt.Errorf("iterating reviewed growth events: %w", err)
}
if err := growth.ValidateCatalog(catalog); err != nil {
return nil, fmt.Errorf("validating reviewed growth event catalog: %w", err)
}
return catalog, nil
}
func (b *PostgreSQLBuilder) loadPeer(ctx context.Context, merchantID int64, terminalID string) (growth.PeerInput, error) {
if terminalID != "" {
return growth.PeerInput{TerminalScoped: true}, nil
}
var own int64
if err := b.pool.QueryRow(ctx, `SELECT count(*) FROM payment_sessions WHERE merchant_id=$1 AND status IN ('Paid','Verified')`, merchantID).Scan(&own); err != nil {
return growth.PeerInput{}, fmt.Errorf("loading merchant peer value: %w", err)
}
rows, err := b.pool.Query(ctx, `SELECT ps.merchant_id,count(*) FILTER(WHERE ps.status IN ('Paid','Verified')),count(*) FROM payment_sessions ps JOIN merchants m ON m.id=ps.merchant_id WHERE m.category_id=(SELECT category_id FROM merchants WHERE id=$1) AND ps.merchant_id<>$1 GROUP BY ps.merchant_id`, merchantID)
if err != nil {
return growth.PeerInput{}, fmt.Errorf("loading peer values: %w", err)
}
defer rows.Close()
input := growth.PeerInput{MerchantPaidSessions: own}
for rows.Next() {
var peer growth.PeerMerchantValue
var id int64
if err := rows.Scan(&id, &peer.PaidSessions, &peer.SessionCount); err != nil {
return growth.PeerInput{}, fmt.Errorf("scanning peer value: %w", err)
}
input.Peers = append(input.Peers, peer)
}
if err := rows.Err(); err != nil {
return growth.PeerInput{}, fmt.Errorf("iterating peer values: %w", err)
}
return input, nil
}
func convertFallback(items []growth.CampaignBrief) AICopy {
result := AICopy{Briefs: make([]CampaignBrief, 0, len(items))}
for _, item := range items {
result.Briefs = append(result.Briefs, CampaignBrief{Headline: item.HeadlineFA, Interpretation: item.GuidanceFA, OfferSuggestion: item.OfferFA, MessageSuggestion: item.MessageFA, PreparationAction: item.PreparationFA, Limitation: item.LimitationFA, EvidenceIDs: item.EvidenceIDs})
}
return result
}
type EvidenceTools struct{ analysis Analysis }
func NewEvidenceTools(analysis Analysis) EvidenceTools { return EvidenceTools{analysis: analysis} }
func (t EvidenceTools) Execute(_ context.Context, name string, arguments json.RawMessage) (json.RawMessage, error) {
var args struct {
EvidenceID string `json:"evidenceId"`
}
if err := json.Unmarshal(arguments, &args); err != nil {
return nil, fmt.Errorf("invalid tool arguments: %w", err)
}
if len(args.EvidenceID) > 128 {
return nil, fmt.Errorf("growth tool: invalid evidence id")
}
switch name {
case "get_growth_context":
return json.Marshal(map[string]any{"mode": "EVENTS_ONLY", "merchantContext": t.analysis.Evidence.MerchantContext, "eventEvidenceIds": upcomingEventEvidenceIDs(t.analysis.Evidence.Events)})
case "get_peer_context":
return []byte(`{"state":"UNAVAILABLE","reason":"EVENTS_ONLY"}`), nil
case "get_event_evidence":
for _, item := range t.analysis.Evidence.Events {
if item.EvidenceID == args.EvidenceID {
return json.Marshal(item)
}
}
case "get_campaign_playbook":
for _, item := range t.analysis.Fallback.Briefs {
for _, id := range item.EvidenceIDs {
if id == args.EvidenceID {
return json.Marshal(item)
}
}
}
}
return nil, errorsNewUnknownEvidence()
}
func upcomingEventEvidenceIDs(items []UpcomingEvent) []string {
result := make([]string, 0, len(items))
for _, item := range items {
result = append(result, item.EvidenceID)
}
return result
}
func errorsNewUnknownEvidence() error { return fmt.Errorf("growth tool: unknown evidence") }