Add v0.0.7 invoice system

VERSION

@@ -1 +1 @@
-0.0.6
+0.0.7

backend/app.py

@@ -12,9 +12,10 @@ app = Flask(
 def index():
     return """
     <h1>OTB Billing</h1>
-    <p>Version 0.0.6</p>
+    <p>Version 0.0.7</p>
     <p><a href="/clients">Clients</a></p>
     <p><a href="/services">Services</a></p>
+    <p><a href="/invoices">Invoices</a></p>
     <p><a href="/dbtest">DB Test</a></p>
     """
 
@@ -39,118 +40,117 @@ def clients():
     conn.close()
     return render_template("clients/list.html", clients=clients)
 
-@app.route("/clients/new", methods=["GET", "POST"])
-def new_client():
-    if request.method == "POST":
-        company_name = request.form["company_name"]
-        contact_name = request.form["contact_name"]
-        email = request.form["email"]
-        phone = request.form["phone"]
-
+@app.route("/services")
+def services():
     conn = get_db_connection()
     cursor = conn.cursor(dictionary=True)
-        cursor.execute("SELECT MAX(id) AS last_id FROM clients")
-        result = cursor.fetchone()
-        last_number = result["last_id"] if result["last_id"] else 0
 
-        client_code = generate_client_code(company_name, last_number)
+    cursor.execute("""
+        SELECT s.*, c.client_code, c.company_name
+        FROM services s
+        JOIN clients c ON s.client_id = c.id
+        ORDER BY s.id DESC
+    """)
 
-        cursor = conn.cursor()
-        cursor.execute(
-            """
-            INSERT INTO clients
-            (client_code, company_name, contact_name, email, phone)
-            VALUES (%s, %s, %s, %s, %s)
-            """,
-            (client_code, company_name, contact_name, email, phone)
-        )
-        conn.commit()
+    services = cursor.fetchall()
     conn.close()
 
-        return redirect("/clients")
+    return render_template("services/list.html", services=services)
 
-    return render_template("clients/new.html")
+@app.route("/invoices")
+def invoices():
 
-@app.route("/services")
-def services():
     conn = get_db_connection()
     cursor = conn.cursor(dictionary=True)
-    cursor.execute(
-        """
+
+    cursor.execute("""
         SELECT
-            s.*,
+            i.*,
             c.client_code,
             c.company_name
-        FROM services s
-        JOIN clients c ON s.client_id = c.id
-        ORDER BY s.id DESC
-        """
-    )
-    services = cursor.fetchall()
+        FROM invoices i
+        JOIN clients c ON i.client_id = c.id
+        ORDER BY i.id DESC
+    """)
+
+    invoices = cursor.fetchall()
     conn.close()
-    return render_template("services/list.html", services=services)
 
-@app.route("/services/new", methods=["GET", "POST"])
-def new_service():
+    return render_template("invoices/list.html", invoices=invoices)
+
+@app.route("/invoices/new", methods=["GET","POST"])
+def new_invoice():
+
     conn = get_db_connection()
     cursor = conn.cursor(dictionary=True)
 
     if request.method == "POST":
+
         client_id = request.form["client_id"]
-        service_name = request.form["service_name"]
-        service_type = request.form["service_type"]
-        billing_cycle = request.form["billing_cycle"]
+        service_id = request.form["service_id"]
         currency_code = request.form["currency_code"]
-        recurring_amount = request.form["recurring_amount"]
-        status = request.form["status"]
-        start_date = request.form["start_date"] or None
-        description = request.form["description"]
+        total_amount = request.form["total_amount"]
+        due_at = request.form["due_at"]
+        notes = request.form["notes"]
 
-        cursor.execute("SELECT MAX(id) AS last_id FROM services")
+        cursor.execute("SELECT MAX(id) as last_id FROM invoices")
         result = cursor.fetchone()
-        last_number = result["last_id"] if result["last_id"] else 0
-        service_code = generate_service_code(service_name, last_number)
 
-        insert_cursor = conn.cursor()
-        insert_cursor.execute(
-            """
-            INSERT INTO services
+        number = (result["last_id"] or 0) + 1
+        invoice_number = f"INV-{number:04d}"
+
+        insert = conn.cursor()
+
+        insert.execute("""
+            INSERT INTO invoices
             (
                 client_id,
-                service_code,
-                service_name,
-                service_type,
-                billing_cycle,
-                status,
+                service_id,
+                invoice_number,
                 currency_code,
-                recurring_amount,
-                start_date,
-                description
+                total_amount,
+                subtotal_amount,
+                issued_at,
+                due_at,
+                status,
+                notes
             )
-            VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s)
+            VALUES (%s,%s,%s,%s,%s,%s,NOW(),%s,'pending',%s)
         """,
         (
             client_id,
-                service_code,
-                service_name,
-                service_type,
-                billing_cycle,
-                status,
+            service_id,
+            invoice_number,
             currency_code,
-                recurring_amount,
-                start_date,
-                description
-            )
-        )
+            total_amount,
+            total_amount,
+            due_at,
+            notes
+        ))
+
         conn.commit()
         conn.close()
 
-        return redirect("/services")
+        return redirect("/invoices")
 
-    cursor.execute("SELECT id, client_code, company_name FROM clients ORDER BY company_name ASC")
+    cursor.execute("""
+        SELECT id, client_code, company_name
+        FROM clients
+        ORDER BY company_name
+    """)
     clients = cursor.fetchall()
+
+    cursor.execute("""
+        SELECT id, service_code, service_name
+        FROM services
+        ORDER BY service_name
+    """)
+    services = cursor.fetchall()
+
     conn.close()
-    return render_template("services/new.html", clients=clients)
+
+    return render_template("invoices/new.html", clients=clients, services=services)
+
 
 if __name__ == "__main__":
     app.run(host="0.0.0.0", port=5050)

templates/invoices/list.html

@@ -0,0 +1,45 @@
+<!doctype html>
+<html>
+<head>
+<title>Invoices</title>
+</head>
+
+<body>
+
+<h1>Invoices</h1>
+
+<p><a href="/">Home</a></p>
+<p><a href="/invoices/new">Create Invoice</a></p>
+
+<table border="1" cellpadding="6">
+
+<tr>
+<th>ID</th>
+<th>Invoice</th>
+<th>Client</th>
+<th>Currency</th>
+<th>Total</th>
+<th>Status</th>
+<th>Issued</th>
+<th>Due</th>
+</tr>
+
+{% for i in invoices %}
+
+<tr>
+<td>{{ i.id }}</td>
+<td>{{ i.invoice_number }}</td>
+<td>{{ i.client_code }} - {{ i.company_name }}</td>
+<td>{{ i.currency_code }}</td>
+<td>{{ i.total_amount }}</td>
+<td>{{ i.status }}</td>
+<td>{{ i.issued_at }}</td>
+<td>{{ i.due_at }}</td>
+</tr>
+
+{% endfor %}
+
+</table>
+
+</body>
+</html>

templates/invoices/new.html

@@ -0,0 +1,63 @@
+<!doctype html>
+<html>
+<head>
+<title>New Invoice</title>
+</head>
+
+<body>
+
+<h1>Create Invoice</h1>
+
+<form method="post">
+
+<p>
+Client<br>
+<select name="client_id">
+{% for c in clients %}
+<option value="{{ c.id }}">{{ c.client_code }} - {{ c.company_name }}</option>
+{% endfor %}
+</select>
+</p>
+
+<p>
+Service<br>
+<select name="service_id">
+{% for s in services %}
+<option value="{{ s.id }}">{{ s.service_code }} - {{ s.service_name }}</option>
+{% endfor %}
+</select>
+</p>
+
+<p>
+Currency<br>
+<select name="currency_code">
+<option value="CAD">CAD</option>
+<option value="ETHO">ETHO</option>
+<option value="EGAZ">EGAZ</option>
+<option value="ALT">ALT</option>
+</select>
+</p>
+
+<p>
+Total Amount<br>
+<input type="number" step="0.00000001" name="total_amount">
+</p>
+
+<p>
+Due Date<br>
+<input type="date" name="due_at">
+</p>
+
+<p>
+Notes<br>
+<textarea name="notes"></textarea>
+</p>
+
+<p>
+<button type="submit">Create Invoice</button>
+</p>
+
+</form>
+
+</body>
+</html>