[FIX] compute time spent based on last invoice date

contract_timesheet_monitoring/models/account_analytic_account.py

@@ -13,7 +13,8 @@ def get_time_spent_for_period(self, start_date, end_date=None):
             lambda x: (x.product_uom_id.measure_type == "time")
         )
         if timesheets:
-            time_spent_on_account = timesheets.filtered(
-                lambda x: (x.date >= start_date)
-            ).mapped("unit_amount")
-            return sum(time_spent_on_account)
+            if start_date:
+                timesheets = timesheets.filtered(
+                    lambda x: (x.date >= start_date)
+                )
+            return sum(timesheets.mapped("unit_amount"))

contract_timesheet_monitoring/models/account_invoice_line.py

@@ -3,7 +3,7 @@
 # Copyright 2020 Tecnativa - Pedro M. Baeza
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
-from odoo import fields, models
+from odoo import api, fields, models
 
 
 class AccountInvoiceLine(models.Model):
@@ -13,14 +13,22 @@ class AccountInvoiceLine(models.Model):
         string="Time Spent", compute="_compute_time_spent"
     )
     time_available = fields.Integer(related="product_id.hours_available")
+
+    time_remaining = fields.Float(
+        string="Time Remaining", compute="_compute_time_remaining"
+    )
 
-
-
+    @api.depends("account_analytic_id.line_ids")
     def _compute_time_spent(self):
         for line in self:
-            if line.analytic_account_id and line.start_date:
-                 line.time_spent = line.analytic_account_id.get_time_spent_for_period(
+            if line.account_analytic_id and line.start_date:
+                 line.time_spent = line.account_analytic_id.get_time_spent_for_period(
                     line.start_date, line.end_date
                 )
             else:
                 line.time_spent = False
+
+    @api.depends("time_available", "time_spent")
+    def _compute_time_remaining(self):
+        for line in self:
+            line.time_remaining = line.time_available - line.time_spent

contract_timesheet_monitoring/models/contract_line.py

@@ -12,12 +12,20 @@ class ContractLine(models.Model):
     time_remaining = fields.Float(
         string="Time Remaining", compute="_compute_time_remaining"
     )
+    date_of_last_invoice = fields.Date(compute="_get_date_of_last_invoice")
+
+    def _get_date_of_last_invoice(self):
+        invoices = self.contract_id._get_related_invoices().filtered(lambda x: (x.state != "draft"))
+        if any(invoices.mapped("date_invoice")):
+            return max(invoices.mapped("date_invoice"))
+        else: 
+            return False
 
     @api.depends("analytic_account_id.line_ids")
     def _compute_time_spent(self):
         for line in self:
             if line.analytic_account_id:
-                period_start_date = line.last_date_invoiced or line.date_start
+                period_start_date = line._get_date_of_last_invoice()
                 line.time_spent = line.analytic_account_id.get_time_spent_for_period(
                     period_start_date
                 )

contract_timesheet_monitoring/views/account_invoice.xml

@@ -6,7 +6,9 @@
     <field name="inherit_id" ref="account.invoice_form" />
     <field name="arch" type="xml">
             <field name="quantity" position="after">
-                <field name="time_spent" decoration-danger="time_spent &gt; quantity" />
+                <field name="time_available" />
+                <field name="time_spent" decoration-danger="time_spent &gt; time_available" />
+                <field name="time_remaining" decoration-danger="time_spent &lt; 0" />
             </field>
     </field>
 </record>