Bernt
498 lines
16 KiB
Go
498 lines
16 KiB
Go
package comm
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import (
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"database/sql"
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"encoding/json"
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"net/http"
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"time"
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"github.com/go-chi/chi/v5"
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"github.com/google/uuid"
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"github.com/rs/zerolog/log"
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)
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// LeadHandler hanterar leads
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type LeadHandler struct {
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db *sql.DB
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}
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// NewLeadHandler skapar en ny handler
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func NewLeadHandler(db *sql.DB) *LeadHandler {
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return &LeadHandler{db: db}
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}
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// Lead representerar ett lead
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type Lead struct {
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ID uuid.UUID `json:"id"`
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TenantID uuid.UUID `json:"tenant_id"`
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ContactID uuid.UUID `json:"contact_id"`
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ConversationID *uuid.UUID `json:"conversation_id,omitempty"`
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Source string `json:"source"`
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SourceMetadata json.RawMessage `json:"source_metadata,omitempty"`
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Status string `json:"status"`
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Interest string `json:"interest,omitempty"`
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Product string `json:"product,omitempty"`
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Urgency string `json:"urgency"`
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CustomerType string `json:"customer_type,omitempty"`
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Owner *uuid.UUID `json:"owner,omitempty"`
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Team string `json:"team,omitempty"`
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LeadScore int `json:"lead_score"`
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QualificationState json.RawMessage `json:"qualification_state,omitempty"`
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QualificationComplete bool `json:"qualification_complete"`
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LastInteractionAt time.Time `json:"last_interaction_at"`
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NextActionAt *time.Time `json:"next_action_at,omitempty"`
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NextActionType string `json:"next_action_type,omitempty"`
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Tags []string `json:"tags,omitempty"`
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CreatedAt time.Time `json:"created_at"`
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UpdatedAt time.Time `json:"updated_at"`
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Contact *ContactBrief `json:"contact,omitempty"`
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}
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// CreateLeadRequest
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type CreateLeadRequest struct {
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ContactID uuid.UUID `json:"contact_id"`
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ConversationID uuid.UUID `json:"conversation_id,omitempty"`
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Source string `json:"source"`
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SourceMetadata map[string]interface{} `json:"source_metadata,omitempty"`
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Interest string `json:"interest,omitempty"`
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Product string `json:"product,omitempty"`
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Urgency string `json:"urgency,omitempty"`
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CustomerType string `json:"customer_type,omitempty"`
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Tags []string `json:"tags,omitempty"`
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}
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// UpdateLeadRequest
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type UpdateLeadRequest struct {
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Status string `json:"status,omitempty"`
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Interest string `json:"interest,omitempty"`
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Product string `json:"product,omitempty"`
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Urgency string `json:"urgency,omitempty"`
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Owner uuid.UUID `json:"owner,omitempty"`
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Team string `json:"team,omitempty"`
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Tags []string `json:"tags,omitempty"`
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LeadScore int `json:"lead_score,omitempty"`
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}
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// CreateLead skapar ett nytt lead
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func (h *LeadHandler) CreateLead(w http.ResponseWriter, r *http.Request) {
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var req CreateLeadRequest
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if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
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writeError(w, http.StatusBadRequest, "invalid request")
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return
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}
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tenantID := getTenantID(r)
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if tenantID == uuid.Nil {
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writeError(w, http.StatusUnauthorized, "missing tenant")
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return
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}
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sourceMetadata, _ := json.Marshal(req.SourceMetadata)
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var lead Lead
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var nextActionAt *time.Time
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var nextActionType sql.NullString
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var tagsJSON []byte
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err := h.db.QueryRow(`
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INSERT INTO leads (tenant_id, contact_id, conversation_id, source, source_metadata,
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interest, product, urgency, customer_type, tags, status)
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VALUES ($1, $2, $3, $4, $5, $6, $7, COALESCE($8, 'normal'), $9, $10, 'new')
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RETURNING id, tenant_id, contact_id, conversation_id, source, status, interest, product,
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urgency, customer_type, owner, lead_score, qualification_complete,
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last_interaction_at, next_action_at, next_action_type, tags, created_at, updated_at
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`, tenantID, req.ContactID, nullUUID(req.ConversationID), req.Source, sourceMetadata,
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req.Interest, req.Product, req.Urgency, req.CustomerType, nullStringArray(req.Tags)).Scan(
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&lead.ID, &lead.TenantID, &lead.ContactID, &lead.ConversationID, &lead.Source, &lead.Status,
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&lead.Interest, &lead.Product, &lead.Urgency, &lead.CustomerType, &lead.Owner,
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&lead.LeadScore, &lead.QualificationComplete, &lead.LastInteractionAt, &nextActionAt,
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&nextActionType, &tagsJSON, &lead.CreatedAt, &lead.UpdatedAt,
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)
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if nextActionAt != nil {
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lead.NextActionAt = nextActionAt
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}
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if nextActionType.Valid {
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lead.NextActionType = nextActionType.String
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}
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if len(tagsJSON) > 0 {
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json.Unmarshal(tagsJSON, &lead.Tags)
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}
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if err != nil {
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log.Error().Err(err).Msg("Failed to create lead")
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writeError(w, http.StatusInternalServerError, "failed to create lead")
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return
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}
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// Beräkna initial lead score
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score, factors := h.calculateLeadScore(lead)
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if score > 0 {
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h.updateLeadScore(lead.ID, score, factors, "Initial score on creation")
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}
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writeJSON(w, http.StatusCreated, lead)
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}
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// GetLead hämtar ett lead
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func (h *LeadHandler) GetLead(w http.ResponseWriter, r *http.Request) {
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id, err := uuid.Parse(chi.URLParam(r, "id"))
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if err != nil {
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writeError(w, http.StatusBadRequest, "invalid id")
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return
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}
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lead, err := h.getLeadWithContact(id)
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if err != nil {
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writeError(w, http.StatusNotFound, "lead not found")
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return
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}
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writeJSON(w, http.StatusOK, lead)
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}
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// ListLeads listar leads med filtering
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func (h *LeadHandler) ListLeads(w http.ResponseWriter, r *http.Request) {
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tenantID := getTenantID(r)
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if tenantID == uuid.Nil {
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writeError(w, http.StatusUnauthorized, "missing tenant")
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return
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}
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status := r.URL.Query().Get("status")
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owner := r.URL.Query().Get("owner")
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minScore := r.URL.Query().Get("min_score")
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query := `
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SELECT l.id, l.tenant_id, l.contact_id, l.conversation_id, l.source, l.status,
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l.interest, l.product, l.urgency, l.customer_type, l.owner, l.team,
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l.lead_score, l.qualification_complete, l.last_interaction_at,
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l.next_action_at, l.next_action_type, l.tags, l.created_at, l.updated_at,
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c.id, c.first_name, c.last_name, c.email, c.phone
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FROM leads l
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JOIN contacts c ON l.contact_id = c.id
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WHERE l.tenant_id = $1
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`
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args := []interface{}{tenantID}
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argCount := 1
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if status != "" {
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argCount++
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query += " AND l.status = $" + string(rune('0'+argCount))
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args = append(args, status)
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}
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if owner != "" {
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argCount++
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query += " AND l.owner = $" + string(rune('0'+argCount))
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args = append(args, owner)
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}
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if minScore != "" {
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argCount++
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query += " AND l.lead_score >= $" + string(rune('0'+argCount))
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args = append(args, minScore)
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}
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query += " ORDER BY l.lead_score DESC, l.created_at DESC LIMIT 100"
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rows, err := h.db.Query(query, args...)
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if err != nil {
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writeError(w, http.StatusInternalServerError, "database error")
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return
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}
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defer rows.Close()
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var leads []Lead
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for rows.Next() {
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var lead Lead
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var contact ContactBrief
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rows.Scan(
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&lead.ID, &lead.TenantID, &lead.ContactID, &lead.ConversationID, &lead.Source, &lead.Status,
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&lead.Interest, &lead.Product, &lead.Urgency, &lead.CustomerType, &lead.Owner, &lead.Team,
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&lead.LeadScore, &lead.QualificationComplete, &lead.LastInteractionAt,
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&lead.NextActionAt, &lead.NextActionType, &lead.Tags, &lead.CreatedAt, &lead.UpdatedAt,
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&contact.ID, &contact.FirstName, &contact.LastName, &contact.Email, &contact.Phone,
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)
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lead.Contact = &contact
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leads = append(leads, lead)
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}
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writeJSON(w, http.StatusOK, map[string]interface{}{"leads": leads})
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}
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// UpdateLead uppdaterar ett lead
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func (h *LeadHandler) UpdateLead(w http.ResponseWriter, r *http.Request) {
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id, err := uuid.Parse(chi.URLParam(r, "id"))
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if err != nil {
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writeError(w, http.StatusBadRequest, "invalid id")
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return
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}
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var req UpdateLeadRequest
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if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
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writeError(w, http.StatusBadRequest, "invalid request")
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return
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}
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// Hämta nuvarande lead för att logga förändringar
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oldLead, _ := h.getLead(id)
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_, err = h.db.Exec(`
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UPDATE leads
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SET status = COALESCE(NULLIF($1, ''), status),
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interest = COALESCE(NULLIF($2, ''), interest),
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product = COALESCE(NULLIF($3, ''), product),
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urgency = COALESCE(NULLIF($4, ''), urgency),
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owner = COALESCE($5, owner),
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team = COALESCE(NULLIF($6, ''), team),
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tags = COALESCE($7, tags),
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lead_score = COALESCE(NULLIF($8, 0), lead_score),
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updated_at = NOW()
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WHERE id = $9
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`, req.Status, req.Interest, req.Product, req.Urgency,
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nullUUID(req.Owner), req.Team, req.Tags, req.LeadScore, id)
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if err != nil {
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writeError(w, http.StatusInternalServerError, "update failed")
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return
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}
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// Om status ändrades, logga det
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if oldLead != nil && req.Status != "" && req.Status != oldLead.Status {
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h.logStatusChange(id, oldLead.Status, req.Status)
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}
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writeJSON(w, http.StatusOK, map[string]interface{}{"updated": true})
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}
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// UpdateQualification uppdaterar kvalificeringsstatus
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func (h *LeadHandler) UpdateQualification(w http.ResponseWriter, r *http.Request) {
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id, err := uuid.Parse(chi.URLParam(r, "id"))
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if err != nil {
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writeError(w, http.StatusBadRequest, "invalid id")
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return
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}
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var req struct {
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State map[string]interface{} `json:"state"`
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Complete bool `json:"complete"`
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}
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if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
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writeError(w, http.StatusBadRequest, "invalid request")
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return
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}
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stateJSON, _ := json.Marshal(req.State)
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_, err = h.db.Exec(`
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UPDATE leads
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SET qualification_state = $1, qualification_complete = $2, updated_at = NOW()
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WHERE id = $3
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`, stateJSON, req.Complete, id)
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if err != nil {
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writeError(w, http.StatusInternalServerError, "update failed")
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return
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}
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// Om kvalificering är komplett, uppdatera score
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if req.Complete {
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lead, _ := h.getLead(id)
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if lead != nil {
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score, factors := h.calculateLeadScore(*lead)
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h.updateLeadScore(id, score, factors, "Qualification completed")
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}
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}
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writeJSON(w, http.StatusOK, map[string]interface{}{"updated": true})
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}
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// GetLeadScoreHistory hämtar score-historik
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func (h *LeadHandler) GetLeadScoreHistory(w http.ResponseWriter, r *http.Request) {
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id, err := uuid.Parse(chi.URLParam(r, "id"))
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if err != nil {
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writeError(w, http.StatusBadRequest, "invalid id")
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return
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}
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rows, err := h.db.Query(`
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SELECT id, lead_id, score, previous_score, reason, factors, created_at
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FROM lead_score_history
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WHERE lead_id = $1
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ORDER BY created_at DESC
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`, id)
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if err != nil {
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writeError(w, http.StatusInternalServerError, "database error")
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return
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}
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defer rows.Close()
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var history []map[string]interface{}
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for rows.Next() {
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var entry struct {
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ID uuid.UUID `json:"id"`
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LeadID uuid.UUID `json:"lead_id"`
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Score int `json:"score"`
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PreviousScore *int `json:"previous_score,omitempty"`
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Reason string `json:"reason"`
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Factors json.RawMessage `json:"factors"`
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CreatedAt time.Time `json:"created_at"`
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}
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rows.Scan(&entry.ID, &entry.LeadID, &entry.Score, &entry.PreviousScore, &entry.Reason, &entry.Factors, &entry.CreatedAt)
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history = append(history, map[string]interface{}{
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"id": entry.ID,
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"score": entry.Score,
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"previous_score": entry.PreviousScore,
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"reason": entry.Reason,
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"factors": entry.Factors,
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"created_at": entry.CreatedAt,
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})
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}
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writeJSON(w, http.StatusOK, map[string]interface{}{"history": history})
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}
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// LeadScoringFactors förklarar score
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type LeadScoringFactors struct {
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SourceScore int `json:"source_score"`
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InteractionScore int `json:"interaction_score"`
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IntentScore int `json:"intent_score"`
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UrgencyScore int `json:"urgency_score"`
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ProductScore int `json:"product_score"`
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CustomerScore int `json:"customer_score"`
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QualificationScore int `json:"qualification_score"`
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}
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// calculateLeadScore beräknar lead score
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func (h *LeadHandler) calculateLeadScore(lead Lead) (int, LeadScoringFactors) {
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factors := LeadScoringFactors{}
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// Source score
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switch lead.Source {
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case "referral", "website":
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factors.SourceScore = 25
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case "whatsapp", "instagram", "facebook":
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factors.SourceScore = 20
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case "campaign", "landing_page":
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factors.SourceScore = 15
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default:
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factors.SourceScore = 10
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}
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// Urgency score
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switch lead.Urgency {
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case "urgent":
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factors.UrgencyScore = 20
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case "high":
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factors.UrgencyScore = 15
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case "normal":
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factors.UrgencyScore = 10
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default:
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factors.UrgencyScore = 5
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}
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// Product interest score
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if lead.Product != "" {
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factors.ProductScore = 15
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}
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// Customer type score
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if lead.CustomerType == "existing" {
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factors.CustomerScore = 15
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} else {
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factors.CustomerScore = 10
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}
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// Qualification score
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if lead.QualificationComplete {
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factors.QualificationScore = 20
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} else {
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// Delvis kvalificering
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var state map[string]interface{}
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json.Unmarshal(lead.QualificationState, &state)
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if len(state) > 0 {
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factors.QualificationScore = 10
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}
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}
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// Interaction score (baserat på konversation)
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if lead.ConversationID != nil {
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var msgCount int
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h.db.QueryRow("SELECT COUNT(*) FROM messages WHERE conversation_id = $1", lead.ConversationID).Scan(&msgCount)
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if msgCount > 5 {
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factors.InteractionScore = 15
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} else if msgCount > 2 {
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factors.InteractionScore = 10
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} else {
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factors.InteractionScore = 5
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}
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}
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total := factors.SourceScore + factors.InteractionScore + factors.IntentScore +
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factors.UrgencyScore + factors.ProductScore + factors.CustomerScore + factors.QualificationScore
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// Cap at 100
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if total > 100 {
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total = 100
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}
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return total, factors
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}
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func (h *LeadHandler) updateLeadScore(leadID uuid.UUID, score int, factors LeadScoringFactors, reason string) {
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// Hämta nuvarande score
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var oldScore int
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h.db.QueryRow("SELECT lead_score FROM leads WHERE id = $1", leadID).Scan(&oldScore)
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// Uppdatera lead
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h.db.Exec("UPDATE leads SET lead_score = $1, updated_at = NOW() WHERE id = $2", score, leadID)
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// Logga förändring
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factorsJSON, _ := json.Marshal(factors)
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h.db.Exec(`
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INSERT INTO lead_score_history (lead_id, score, previous_score, reason, factors)
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VALUES ($1, $2, $3, $4, $5)
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`, leadID, score, oldScore, reason, factorsJSON)
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}
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func (h *LeadHandler) logStatusChange(leadID uuid.UUID, oldStatus, newStatus string) {
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// TODO: Implementera audit logging
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log.Info().
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Str("lead_id", leadID.String()).
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Str("old_status", oldStatus).
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Str("new_status", newStatus).
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Msg("Lead status changed")
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}
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func (h *LeadHandler) getLead(id uuid.UUID) (*Lead, error) {
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var lead Lead
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err := h.db.QueryRow(`
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SELECT id, tenant_id, contact_id, conversation_id, source, status, interest, product,
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urgency, customer_type, owner, team, lead_score, qualification_state, qualification_complete,
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last_interaction_at, next_action_at, next_action_type, tags, created_at, updated_at
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FROM leads WHERE id = $1
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`, id).Scan(
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&lead.ID, &lead.TenantID, &lead.ContactID, &lead.ConversationID, &lead.Source, &lead.Status,
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&lead.Interest, &lead.Product, &lead.Urgency, &lead.CustomerType, &lead.Owner, &lead.Team,
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&lead.LeadScore, &lead.QualificationState, &lead.QualificationComplete, &lead.LastInteractionAt,
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&lead.NextActionAt, &lead.NextActionType, &lead.Tags, &lead.CreatedAt, &lead.UpdatedAt,
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)
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return &lead, err
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}
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func (h *LeadHandler) getLeadWithContact(id uuid.UUID) (*Lead, error) {
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var lead Lead
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var contact ContactBrief
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err := h.db.QueryRow(`
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SELECT l.id, l.tenant_id, l.contact_id, l.conversation_id, l.source, l.status, l.interest, l.product,
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l.urgency, l.customer_type, l.owner, l.team, l.lead_score, l.qualification_state, l.qualification_complete,
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l.last_interaction_at, l.next_action_at, l.next_action_type, l.tags, l.created_at, l.updated_at,
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c.id, c.first_name, c.last_name, c.email, c.phone
|
|
FROM leads l
|
|
JOIN contacts c ON l.contact_id = c.id
|
|
WHERE l.id = $1
|
|
`, id).Scan(
|
|
&lead.ID, &lead.TenantID, &lead.ContactID, &lead.ConversationID, &lead.Source, &lead.Status,
|
|
&lead.Interest, &lead.Product, &lead.Urgency, &lead.CustomerType, &lead.Owner, &lead.Team,
|
|
&lead.LeadScore, &lead.QualificationState, &lead.QualificationComplete, &lead.LastInteractionAt,
|
|
&lead.NextActionAt, &lead.NextActionType, &lead.Tags, &lead.CreatedAt, &lead.UpdatedAt,
|
|
&contact.ID, &contact.FirstName, &contact.LastName, &contact.Email, &contact.Phone,
|
|
)
|
|
lead.Contact = &contact
|
|
return &lead, err
|
|
}
|