Add missing email file

platform/email/email.go

@@ -0,0 +1,129 @@
+package email
+
+import (
+	"context"
+	"crypto/sha256"
+	"database/sql"
+	"encoding/hex"
+	"fmt"
+	"sort"
+	"strings"
+	"time"
+
+	"github.com/Gleipnir-Technology/bob/types/pgtypes"
+	"github.com/Gleipnir-Technology/nidus-sync/db"
+	"github.com/Gleipnir-Technology/nidus-sync/db/enums"
+	"github.com/Gleipnir-Technology/nidus-sync/db/models"
+	"github.com/aarondl/opt/omit"
+	"github.com/aarondl/opt/omitnull"
+	"github.com/rs/zerolog/log"
+)
+
+func EnsureInDB(ctx context.Context, destination string) (err error) {
+	_, err = models.FindCommsEmailContact(ctx, db.PGInstance.BobDB, destination)
+	if err != nil {
+		// doesn't exist
+		if err.Error() == "sql: no rows in result set" {
+			public_id := fmt.Sprintf("%x", sha256.Sum256([]byte(destination)))
+			_, err = models.CommsEmailContacts.Insert(&models.CommsEmailContactSetter{
+				Address:      omit.From(destination),
+				Confirmed:    omit.From(false),
+				IsSubscribed: omit.From(false),
+				PublicID:     omit.From(public_id),
+			}).One(ctx, db.PGInstance.BobDB)
+			if err != nil {
+				return fmt.Errorf("Failed to insert new email: %w", err)
+			}
+			log.Info().Str("email", destination).Msg("Added email to the comms database")
+			return nil
+		}
+		return fmt.Errorf("Unexpected error searching for contact: %w", err)
+	}
+	return nil
+}
+
+func convertToPGData(data map[string]string) pgtypes.HStore {
+	result := pgtypes.HStore{}
+	for k, v := range data {
+		result[k] = sql.Null[string]{V: v, Valid: true}
+	}
+	return result
+}
+
+func convertFromPGData(d pgtypes.HStore) map[string]string {
+	result := make(map[string]string, 0)
+	for k, v := range d {
+		value, err := v.Value()
+		if err != nil {
+			log.Warn().Err(err).Str("key", k).Msg("Failed to convert from HSTORE")
+			continue
+		}
+		value_str, ok := value.(string)
+		if !ok {
+			log.Warn().Msg("Failed to convert to string")
+		}
+		result[k] = value_str
+	}
+	return result
+}
+
+func insertEmailLog(ctx context.Context, data map[string]string, destination string, public_id string, source string, subject string, template_id int32) (err error) {
+	data_for_insert := convertToPGData(data)
+	var type_ enums.CommsMessagetypeemail
+	switch template_id {
+	case templateReportNotificationConfirmationID:
+		type_ = enums.CommsMessagetypeemailReportNotificationConfirmation
+	case templateInitialID:
+		type_ = enums.CommsMessagetypeemailInitialContact
+	default:
+		return fmt.Errorf("Unrecognized template ID %d", template_id)
+	}
+	_, err = models.CommsEmailLogs.Insert(&models.CommsEmailLogSetter{
+		//ID:
+		Created:        omit.From(time.Now()),
+		DeliveryStatus: omit.From("initial"),
+		Destination:    omit.From(destination),
+		PublicID:       omit.From(public_id),
+		SentAt:         omitnull.FromPtr[time.Time](nil),
+		Source:         omit.From(source),
+		Subject:        omit.From(subject),
+		TemplateID:     omit.From(template_id),
+		TemplateData:   omit.From(data_for_insert),
+		Type:           omit.From(type_),
+	}).One(ctx, db.PGInstance.BobDB)
+
+	return err
+}
+func generatePublicId(t enums.CommsMessagetypeemail, m map[string]string) string {
+	if m == nil || len(m) == 0 {
+		// Return hash of empty string for empty maps
+		emptyHash := sha256.Sum256([]byte(""))
+		return hex.EncodeToString(emptyHash[:])
+	}
+
+	// Get and sort keys for deterministic ordering
+	keys := make([]string, 0, len(m))
+	for k := range m {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+
+	// Build a string with all key-value pairs
+	var sb strings.Builder
+	// Add type first
+	sb.WriteString(fmt.Sprintf("type:%s,", t))
+	for _, k := range keys {
+		sb.WriteString(k)
+		sb.WriteString(":") // Separator between key and value
+		sb.WriteString(m[k])
+		sb.WriteString(",") // Separator between pairs
+	}
+
+	// Compute SHA-256 hash
+	hasher := sha256.New()
+	hasher.Write([]byte(sb.String()))
+	hashBytes := hasher.Sum(nil)
+
+	// Convert to hex string and return
+	return hex.EncodeToString(hashBytes)
+}