Add GOTH stack CRM platform skeleton

- Go module with chi router, bcrypt - SQLite schema for 9 tables - Auth, Clients, Customers, Services, Scheduling, Payments, Q&A handlers - HTMX template layouts
2026-04-21 15:56:40 +00:00
parent 31039ea4af
commit 5b8107c169
14 changed files with 1529 additions and 0 deletions
--- a/apps/go-crm/internal/handlers/customers.go
+++ b/apps/go-crm/internal/handlers/customers.go
@@ -0,0 +1,84 @@
+package handlers
+
+import (
+	"database/sql"
+	"encoding/json"
+	"net/http"
+	"strconv"
+	"time"
+
+	"go-crm/internal/db"
+
+	"github.com/go-chi/chi/v5"
+)
+
+func ListCustomers(w http.ResponseWriter, r *http.Request) {
+	limit, _ := strconv.Atoi(r.URL.Query().Get("limit"))
+	offset, _ := strconv.Atoi(r.URL.Query().Get("offset"))
+	clientID, _ := strconv.ParseInt(r.URL.Query().Get("client_id"), 10, 64)
+	if limit == 0 {
+		limit = 20
+	}
+
+	customers, err := db.ListCustomers(DB, clientID, limit, offset)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/html")
+	w.Write([]byte(`<!DOCTYPE html><html><head><script src="https://unpkg.com/htmx.org@1.9.10"></script></head><body><h1>Customers</h1><button class="btn" onclick="document.getElementById('customerForm').style.display='block'">Add Customer</button><div id="customerForm" style="display:none; margin-top:1rem;"><form hx-post="/customers" hx-target="#customerList"><input type="text" name="name" placeholder="Name" required><input type="tel" name="phone" placeholder="Phone"><input type="date" name="birth_date" placeholder="Birth Date"><input type="text" name="instagram" placeholder="Instagram"><input type="number" name="client_id" placeholder="Client ID" required><button type="submit">Add</button></form></div><table><thead><tr><th>Name</th><th>Phone</th><th>Birth Date</th><th>Instagram</th><th>Actions</th></tr></thead><tbody id="customerList">`))
+	for _, c := range customers {
+		w.Write([]byte(`<tr><td>` + c.Name + `</td><td>` + c.Phone + `</td><td>` + c.BirthDate + `</td><td>` + c.Instagram + `</td><td><a href="/customers/` + strconv.FormatInt(c.CustomerID, 10) + `">View</a></td></tr>`))
+	}
+	w.Write([]byte(`</tbody></table></body></html>`))
+}
+
+func CreateCustomer(w http.ResponseWriter, r *http.Request) {
+	r.ParseForm()
+	clientID, _ := strconv.ParseInt(r.FormValue("client_id"), 10, 64)
+	customer := db.Customer{
+		ClientID:   clientID,
+		Name:       r.FormValue("name"),
+		Phone:      r.FormValue("phone"),
+		BirthDate:  r.FormValue("birth_date"),
+		Instagram:  r.FormValue("instagram"),
+		CreatedAt:  time.Now().Unix(),
+	}
+
+	if err := customer.Create(DB); err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	w.Header().Set("HX-Refresh", "true")
+}
+
+func ViewCustomer(w http.ResponseWriter, r *http.Request) {
+	id, _ := strconv.ParseInt(chi.URLParam(r, "id"), 10)
+	var c db.Customer
+	err := DB.QueryRow("SELECT customer_id, client_id, name, phone, birth_date, instagram, created_at FROM customers WHERE customer_id = ?", id).Scan(&c.CustomerID, &c.ClientID, &c.Name, &c.Phone, &c.BirthDate, &c.Instagram, &c.CreatedAt)
+	if err != nil {
+		http.Error(w, "Customer not found", http.StatusNotFound)
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/html")
+	w.Write([]byte(`<!DOCTYPE html><body><h1>` + c.Name + `</h1><p>Phone: ` + c.Phone + `</p><p>Birth Date: ` + c.BirthDate + `</p><p>Instagram: ` + c.Instagram + `</p><a href="/customers">Back</a></body></html>`))
+}
+
+func UpdateCustomer(w http.ResponseWriter, r *http.Request) {
+	id, _ := strconv.ParseInt(chi.URLParam(r, "id"), 10)
+	r.ParseForm()
+	clientID, _ := strconv.ParseInt(r.FormValue("client_id"), 10, 64)
+	_, err := DB.Exec("UPDATE customers SET client_id=?, name=?, phone=?, birth_date=?, instagram=? WHERE customer_id=?", clientID, r.FormValue("name"), r.FormValue("phone"), r.FormValue("birth_date"), r.FormValue("instagram"), id)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+}
+
+func DeleteCustomer(w http.ResponseWriter, r *http.Request) {
+	id, _ := strconv.ParseInt(chi.URLParam(r, "id"), 10)
+	DB.Exec("DELETE FROM customers WHERE customer_id = ?", id)
+}