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/clients.go
+++ b/apps/go-crm/internal/handlers/clients.go
@@ -0,0 +1,142 @@
+package handlers
+
+import (
+	"database/sql"
+	"encoding/json"
+	"net/http"
+	"strconv"
+	"time"
+
+	"go-crm/internal/db"
+
+	"github.com/go-chi/chi/v5"
+)
+
+func ListClients(w http.ResponseWriter, r *http.Request) {
+	limit, _ := strconv.Atoi(r.URL.Query().Get("limit"))
+	offset, _ := strconv.Atoi(r.URL.Query().Get("offset"))
+	if limit == 0 {
+		limit = 20
+	}
+
+	clients, err := db.ListClients(DB, 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>
+    <title>Clients</title>
+    <script src="https://unpkg.com/htmx.org@1.9.10"></script>
+</head>
+<body>
+    <h1>Clients</h1>
+    <button class="btn" onclick="document.getElementById('clientForm').style.display='block'">Add Client</button>
+    <div id="clientForm" style="display:none; margin-top:1rem;">
+        <form hx-post="/clients" hx-target="#clientList" hx-swap="innerHTML">
+            <input type="text" name="name" placeholder="Name" required>
+            <input type="tel" name="phone" placeholder="Phone">
+            <input type="email" name="email" placeholder="Email">
+            <input type="text" name="address" placeholder="Address">
+            <textarea name="notes" placeholder="Notes"></textarea>
+            <button type="submit">Add Client</button>
+        </form>
+    </div>
+    <table>
+        <thead>
+            <tr><th>Name</th><th>Phone</th><th>Email</th><th>Actions</th></tr>
+        </thead>
+        <tbody id="clientList">
+`))
+	for _, c := range clients {
+		w.Write([]byte(`<tr>
+            <td>` + c.Name + `</td>
+            <td>` + c.Phone + `</td>
+            <td>` + c.Email + `</td>
+            <td>
+                <a href="/clients/` + strconv.FormatInt(c.ClientID, 10) + `">View</a>
+                <form method="DELETE" style="display:inline" hx-delete="/clients/` + strconv.FormatInt(c.ClientID, 10) + `" hx-target="closest tr">
+                    <button type="submit">Delete</button>
+                </form>
+            </td>
+        </tr>`))
+	}
+	w.Write([]byte(`</tbody></table></body></html>`))
+}
+
+func CreateClient(w http.ResponseWriter, r *http.Request) {
+	r.ParseForm()
+	client := db.Client{
+		Name:      r.FormValue("name"),
+		Phone:     r.FormValue("phone"),
+		Email:     r.FormValue("email"),
+		Address:   r.FormValue("address"),
+		Notes:    r.FormValue("notes"),
+		CreatedAt: time.Now().Unix(),
+	}
+
+	if err := client.Create(DB); err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/html")
+	w.Header().Set("HX-Refresh", "true")
+}
+
+func ViewClient(w http.ResponseWriter, r *http.Request) {
+	id, _ := strconv.ParseInt(chi.URLParam(r, "id"), 10)
+	client, err := db.GetClientByID(DB, id)
+	if err != nil {
+		http.Error(w, "Client not found", http.StatusNotFound)
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/html")
+	w.Write([]byte(`<!DOCTYPE html>
+<html>
+<head></head>
+<body>
+    <h1>` + client.Name + `</h1>
+    <p>Phone: ` + client.Phone + `</p>
+    <p>Email: ` + client.Email + `</p>
+    <p>Address: ` + client.Address + `</p>
+    <p>Notes: ` + client.Notes + `</p>
+    <a href="/clients">Back</a>
+</body></html>`))
+}
+
+func UpdateClient(w http.ResponseWriter, r *http.Request) {
+	id, _ := strconv.ParseInt(chi.URLParam(r, "id"), 10)
+	r.ParseForm()
+	client := db.Client{
+		ClientID: id,
+		Name:     r.FormValue("name"),
+		Phone:    r.FormValue("phone"),
+		Email:    r.FormValue("email"),
+		Address:  r.FormValue("address"),
+		Notes:    r.FormValue("notes"),
+	}
+
+	if err := client.Update(DB); err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(client)
+}
+
+func DeleteClient(w http.ResponseWriter, r *http.Request) {
+	id, _ := strconv.ParseInt(chi.URLParam(r, "id"), 10)
+	if err := (&db.Client{}).Delete(DB, id); err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/html")
+	w.Write([]byte("OK"))
+}