feat(boc): v1.0 - Complete Business Operations Center
- Go backend API with full CRUD for all modules - Rust analytics service with parallel processing - C runtime with POSIX shared memory IPC - PostgreSQL schema with 30+ tables - Redis cache, Kafka event streaming - WebSocket hub, automation engine - PDF generation, Resend email integration - JWT auth, multi-tenant - Docker Compose deployment - Nginx reverse proxy Refs: BOC-001
This commit is contained in:
Bernt (LandveX AI)
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package handlers
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import (
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"database/sql"
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"encoding/json"
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"fmt"
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"net/http"
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"time"
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"boc/email"
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"boc/pdf"
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)
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type FinanceHandler struct {
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DB *sql.DB
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EmailClient *email.Client
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}
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func NewFinanceHandler(db *sql.DB) *FinanceHandler {
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return &FinanceHandler{DB: db}
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}
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func (h *FinanceHandler) SetEmailClient(client *email.Client) {
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h.EmailClient = client
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}
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type Invoice struct {
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ID string `json:"id"`
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CustomerID string `json:"customer_id"`
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Amount float64 `json:"amount"`
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Currency string `json:"currency"`
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Status string `json:"status"`
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DueDate sql.NullString `json:"due_date"`
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PaidAt sql.NullString `json:"paid_at"`
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CreatedAt string `json:"created_at"`
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}
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type Expense struct {
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ID string `json:"id"`
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Category string `json:"category"`
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Description string `json:"description"`
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Amount float64 `json:"amount"`
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Currency string `json:"currency"`
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Vendor string `json:"vendor"`
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Status string `json:"status"`
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CreatedAt time.Time `json:"created_at"`
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}
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func (h *FinanceHandler) GetCashFlow(w http.ResponseWriter, r *http.Request) {
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// Get paid invoices this month
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var income float64
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err := h.DB.QueryRow(`
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SELECT COALESCE(SUM(amount), 0)
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FROM boc_invoices
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WHERE status = 'paid'
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AND paid_at >= NOW() - INTERVAL '1 month'
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`).Scan(&income)
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if err != nil {
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income = 0
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}
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// Get outstanding invoices
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var outstanding float64
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err = h.DB.QueryRow(`
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SELECT COALESCE(SUM(amount), 0)
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FROM boc_invoices
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WHERE status = 'sent'
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`).Scan(&outstanding)
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if err != nil {
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outstanding = 0
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}
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// Get expenses this month
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var expenses float64
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err = h.DB.QueryRow(`
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SELECT COALESCE(SUM(amount), 0)
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FROM boc_expenses
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WHERE status = 'approved'
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AND created_at >= NOW() - INTERVAL '1 month'
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`).Scan(&expenses)
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if err != nil {
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expenses = 0
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}
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writeJSON(w, http.StatusOK, map[string]interface{}{
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"income_this_month": income,
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"outstanding": outstanding,
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"expenses": expenses,
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"net_cashflow": income - expenses,
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"currency": "USD",
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})
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}
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func (h *FinanceHandler) GetBudget(w http.ResponseWriter, r *http.Request) {
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rows, err := h.DB.Query(`
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SELECT name, fiscal_year, category, amount, spent, currency
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FROM boc_budgets
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WHERE status = 'active'
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ORDER BY fiscal_year DESC, category
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`)
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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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budgets := []map[string]interface{}{}
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for rows.Next() {
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var name, category, currency string
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var fiscalYear int
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var amount, spent float64
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if err := rows.Scan(&name, &fiscalYear, &category, &amount, &spent, ¤cy); err != nil {
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continue
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}
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budgets = append(budgets, map[string]interface{}{
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"name": name,
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"fiscal_year": fiscalYear,
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"category": category,
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"amount": amount,
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"spent": spent,
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"remaining": amount - spent,
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"currency": currency,
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})
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}
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writeJSON(w, http.StatusOK, map[string]interface{}{
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"budgets": budgets,
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"total": len(budgets),
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})
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}
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func (h *FinanceHandler) ListInvoices(w http.ResponseWriter, r *http.Request) {
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status := r.URL.Query().Get("status")
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if status == "" {
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status = "all"
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}
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var query string
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var args []interface{}
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if status == "all" {
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query = `
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SELECT id, customer_id, amount, currency, status, due_date, paid_at, created_at
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FROM boc_invoices
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ORDER BY created_at DESC
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LIMIT 100
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`
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} else {
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query = `
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SELECT id, customer_id, amount, currency, status, due_date, paid_at, created_at
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FROM boc_invoices
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WHERE status = $1
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ORDER BY created_at DESC
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LIMIT 100
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`
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args = append(args, status)
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}
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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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invoices := []Invoice{}
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for rows.Next() {
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var i Invoice
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if err := rows.Scan(&i.ID, &i.CustomerID, &i.Amount, &i.Currency, &i.Status, &i.DueDate, &i.PaidAt, &i.CreatedAt); err != nil {
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continue
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}
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invoices = append(invoices, i)
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}
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writeJSON(w, http.StatusOK, map[string]interface{}{
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"invoices": invoices,
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"total": len(invoices),
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})
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}
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func (h *FinanceHandler) CreateExpense(w http.ResponseWriter, r *http.Request) {
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var req Expense
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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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var id string
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err := h.DB.QueryRow(`
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INSERT INTO boc_expenses (category, description, amount, currency, vendor, status)
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VALUES ($1, $2, $3, $4, $5, 'pending')
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RETURNING id
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`, req.Category, req.Description, req.Amount, req.Currency, req.Vendor).Scan(&id)
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if err != nil {
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writeError(w, http.StatusInternalServerError, "failed to create expense")
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return
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}
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writeJSON(w, http.StatusCreated, map[string]interface{}{
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"id": id,
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"message": "Expense created",
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})
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}
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func (h *FinanceHandler) ListExpenses(w http.ResponseWriter, r *http.Request) {
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status := r.URL.Query().Get("status")
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if status == "" {
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status = "all"
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}
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var query string
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var args []interface{}
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if status == "all" {
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query = `
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SELECT id, category, description, amount, currency, vendor, status, created_at
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FROM boc_expenses
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ORDER BY created_at DESC
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LIMIT 100
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`
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} else {
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query = `
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SELECT id, category, description, amount, currency, vendor, status, created_at
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FROM boc_expenses
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WHERE status = $1
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ORDER BY created_at DESC
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LIMIT 100
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`
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args = append(args, status)
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}
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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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expenses := []Expense{}
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for rows.Next() {
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var e Expense
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if err := rows.Scan(&e.ID, &e.Category, &e.Description, &e.Amount, &e.Currency,
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&e.Vendor, &e.Status, &e.CreatedAt); err != nil {
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continue
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}
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expenses = append(expenses, e)
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}
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writeJSON(w, http.StatusOK, map[string]interface{}{
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"expenses": expenses,
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"total": len(expenses),
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})
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}
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// GenerateInvoicePDF generates a PDF for an invoice
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func (h *FinanceHandler) GenerateInvoicePDF(w http.ResponseWriter, r *http.Request) {
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invoiceID := r.URL.Query().Get("id")
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if invoiceID == "" {
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writeError(w, http.StatusBadRequest, "invoice id required")
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return
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}
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var customerID, currency, status string
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var amount float64
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var dueDate sql.NullString
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err := h.DB.QueryRow(`
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SELECT customer_id, amount, currency, status, due_date
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FROM boc_invoices WHERE id = $1
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`, invoiceID).Scan(&customerID, &amount, ¤cy, &status, &dueDate)
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if err != nil {
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writeError(w, http.StatusNotFound, "invoice not found")
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return
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}
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var customerName, customerAddress, customerOrgNr string
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h.DB.QueryRow(`
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SELECT name, address, org_nr FROM boc_customers WHERE id = $1
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`, customerID).Scan(&customerName, &customerAddress, &customerOrgNr)
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data := pdf.InvoiceData{
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InvoiceNumber: invoiceID[:8],
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InvoiceDate: time.Now(),
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DueDate: time.Now().AddDate(0, 0, 30),
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CustomerName: customerName,
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CustomerAddress: customerAddress,
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CustomerOrgNr: customerOrgNr,
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Items: []pdf.InvoiceItem{
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{
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Description: "Tjänst",
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Quantity: 1,
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Unit: "st",
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UnitPrice: amount,
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Total: amount,
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},
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},
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Subtotal: amount,
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VATRate: 0.25,
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VATAmount: amount * 0.25,
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Total: amount * 1.25,
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Currency: currency,
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CompanyName: "Landvex Inc",
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CompanyAddress: "Houston, TX",
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CompanyOrgNr: "559141-7042",
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CompanyBankgiro: "1234-5678",
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Notes: fmt.Sprintf("Status: %s | Betalningsvillkor: 30 dagar", status),
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}
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pdfBytes, err := pdf.GenerateInvoice(data)
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if err != nil {
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writeError(w, http.StatusInternalServerError, "pdf generation failed")
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return
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}
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w.Header().Set("Content-Type", "application/pdf")
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w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=\"faktura-%s.pdf\"", invoiceID[:8]))
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w.Write(pdfBytes)
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}
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// SendInvoiceEmail sends an invoice via email with PDF attachment
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func (h *FinanceHandler) SendInvoiceEmail(w http.ResponseWriter, r *http.Request) {
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if h.EmailClient == nil {
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writeError(w, http.StatusServiceUnavailable, "email not configured")
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return
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}
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var req struct {
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InvoiceID string `json:"invoice_id"`
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To []string `json:"to"`
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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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// Generate PDF first
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var customerID, currency, status string
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var amount float64
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err := h.DB.QueryRow(`
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SELECT customer_id, amount, currency, status, due_date
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FROM boc_invoices WHERE id = $1
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`, req.InvoiceID).Scan(&customerID, &amount, ¤cy, &status)
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if err != nil {
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writeError(w, http.StatusNotFound, "invoice not found")
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return
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}
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var customerName, customerAddress, customerOrgNr string
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h.DB.QueryRow(`
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SELECT name, address, org_nr FROM boc_customers WHERE id = $1
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`, customerID).Scan(&customerName, &customerAddress, &customerOrgNr)
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data := pdf.InvoiceData{
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InvoiceNumber: req.InvoiceID[:8],
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InvoiceDate: time.Now(),
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DueDate: time.Now().AddDate(0, 0, 30),
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CustomerName: customerName,
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CustomerAddress: customerAddress,
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CustomerOrgNr: customerOrgNr,
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Items: []pdf.InvoiceItem{
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{
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Description: "Tjänst",
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Quantity: 1,
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Unit: "st",
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UnitPrice: amount,
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Total: amount,
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},
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},
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Subtotal: amount,
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VATRate: 0.25,
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VATAmount: amount * 0.25,
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Total: amount * 1.25,
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Currency: currency,
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CompanyName: "Landvex Inc",
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CompanyAddress: "Houston, TX",
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CompanyOrgNr: "559141-7042",
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CompanyBankgiro: "1234-5678",
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Notes: fmt.Sprintf("Status: %s", status),
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}
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pdfBytes, err := pdf.GenerateInvoice(data)
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if err != nil {
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writeError(w, http.StatusInternalServerError, "pdf generation failed")
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return
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}
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err = h.EmailClient.SendInvoice(req.To, req.InvoiceID[:8], pdfBytes, "")
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if err != nil {
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writeError(w, http.StatusInternalServerError, fmt.Sprintf("email failed: %v", err))
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return
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}
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writeJSON(w, http.StatusOK, map[string]interface{}{
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"message": "Invoice sent",
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"to": req.To,
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})
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}
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Reference in New Issue
Block a user