From 17845bf44a1595d378da4e19630f0292491d0081 Mon Sep 17 00:00:00 2001
From: Étienne Loks <etienne.loks@iggdrasil.net>
Date: Mon, 16 Sep 2019 16:38:29 +0200
Subject: Treatment: warning when a treatment state is not reversible

---
 archaeological_finds/forms_treatments.py | 36 +++++++++++++++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

diff --git a/archaeological_finds/forms_treatments.py b/archaeological_finds/forms_treatments.py
index c9dcdea86..4f906f1b9 100644
--- a/archaeological_finds/forms_treatments.py
+++ b/archaeological_finds/forms_treatments.py
@@ -83,6 +83,39 @@ class TreatmentFormSelection(forms.Form):
         validators=[valid_id(models.Treatment)])
 
 
+class TreatmentStateSelect(forms.Select):
+    def render(self, name, value, attrs=None, renderer=None):
+        rendered = super(TreatmentStateSelect, self).render(name, value, attrs,
+                                                            renderer)
+        executed_id = [
+            str(t.pk) for t in models.TreatmentState.objects.filter(
+                executed=True).all()]
+        if not executed_id:
+            return rendered
+        message = '<i class="fa fa-exclamation-triangle" ' \
+                  'aria-hidden="true"></i> &nbsp;'
+        message += str(_("Once validated, this state is not reversible."))
+        rendered += """
+        <div id="%(name)s-msg"class="alert alert-warning d-none">%(message)s</div>
+        <script type='text/javascript'>
+        var %(id)s_exec_list = ['%(exec_list)s'];
+        var %(id)s_check = function(){
+            var current_val = $("#id_%(name)s").val();
+            if (%(id)s_exec_list.indexOf(current_val) != -1){
+                $("#%(name)s-msg").removeClass("d-none");
+            } else {
+                $("#%(name)s-msg").addClass("d-none");
+            }
+        };
+        
+        $("#id_%(name)s").change(%(id)s_check);
+        %(id)s_check();
+        </script>""" % {"name": name, "id": name.replace("-", "_"),
+                        "exec_list": "','".join(executed_id),
+                        "message": message}
+        return rendered
+
+
 class BaseTreatmentForm(CustomForm, ManageOldType):
     UPSTREAM_IS_MANY = False
     DOWNSTREAM_IS_MANY = False
@@ -104,7 +137,8 @@ class BaseTreatmentForm(CustomForm, ManageOldType):
     treatment_type = widgets.Select2MultipleField(
         label=_(u"Treatment type"), choices=[],
         widget=widgets.CheckboxSelectMultiple)
-    treatment_state = forms.ChoiceField(label=_(u"State"), choices=[])
+    treatment_state = forms.ChoiceField(label=_(u"State"), choices=[],
+                                        widget=TreatmentStateSelect)
     year = forms.IntegerField(label=_("Year"),
                               initial=lambda: datetime.datetime.now().year,
                               validators=[validators.MinValueValidator(1000),
-- 
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