feat: submission confirmation and payment locking

claims/admin.py

@@ -1,6 +1,11 @@
+from django.conf import settings
 from django.contrib import admin
+from django.shortcuts import redirect
+from django.urls import path, reverse
+from django.utils import timezone
+from django.utils.html import format_html
 
-from .models import Claim, ClaimLog, Project
+from .models import Claim, ClaimLog, Project, SystemSetting
 
 
 class ClaimLogInline(admin.TabularInline):
@@ -12,11 +17,113 @@ class ClaimLogInline(admin.TabularInline):
 
 @admin.register(Claim)
 class ClaimAdmin(admin.ModelAdmin):
-    list_display = ("full_name", "amount", "currency", "project", "status", "created_at", "submitted_by")
-    list_filter = ("status", "created_at", "project")
+    list_display = ("full_name", "amount", "currency", "project", "status", "paid", "created_at", "submitted_by")
+    list_filter = ("status", "created_at", "project", "paid_at")
     search_fields = ("full_name", "email", "description")
-    readonly_fields = ("created_at", "updated_at")
+    base_readonly = ("created_at", "updated_at", "paid_at", "paid_by", "internal_payments_enabled", "reset_paid_button")
+    readonly_fields = base_readonly
     inlines = [ClaimLogInline]
+    actions = ("mark_as_paid", "mark_as_unpaid")
+
+    @admin.display(boolean=True, description="Betald")
+    def paid(self, obj):
+        return obj.is_paid
+
+    @admin.display(description="Intern betalningshantering på?")
+    def internal_payments_enabled(self, obj):
+        return SystemSetting.internal_payments_active()
+
+    @admin.display(description="Återställ betalning")
+    def reset_paid_button(self, obj):
+        if not obj.is_paid:
+            return "Ej betald"
+        url = reverse("admin:claims_claim_reset_payment", args=[obj.pk])
+        return format_html(
+            '<a class="button" href="{}" onclick="return confirm(\'Ta bort betalningsmarkeringen?\');">Resetta</a>',
+            url,
+        )
+
+    @admin.action(description="Markera valda som betalda")
+    def mark_as_paid(self, request, queryset):
+        count = 0
+        for claim in queryset.filter(status=Claim.Status.APPROVED, paid_at__isnull=True):
+            claim.paid_at = timezone.now()
+            claim.paid_by = request.user
+            claim.save(update_fields=["paid_at", "paid_by"])
+            claim.add_log(
+                action=ClaimLog.Action.MARKED_PAID,
+                performed_by=request.user,
+                note="Markerad som betald via Django admin.",
+            )
+            count += 1
+        if count:
+            self.message_user(request, f"{count} utlägg markerades som betalda.")
+        else:
+            self.message_user(request, "Inga utlägg markerades – kontrollera status/betalning.", level="warning")
+
+    @admin.action(description="Återställ betalningsstatus (markera som obetalda)")
+    def mark_as_unpaid(self, request, queryset):
+        count = 0
+        for claim in queryset.filter(paid_at__isnull=False):
+            claim.paid_at = None
+            claim.paid_by = None
+            claim.save(update_fields=["paid_at", "paid_by"])
+            claim.add_log(
+                action=ClaimLog.Action.MARKED_PAID,
+                performed_by=request.user,
+                note="Betalningsstatus återställd via Django admin.",
+            )
+            count += 1
+        if count:
+            self.message_user(request, f"{count} utlägg markerades som obetalda.")
+        else:
+            self.message_user(request, "Inga utlägg behövde återställas.", level="warning")
+
+    def save_model(self, request, obj, form, change):
+        super().save_model(request, obj, form, change)
+
+    def get_urls(self):
+        urls = super().get_urls()
+        custom_urls = [
+            path(
+                "<int:claim_id>/reset-payment/",
+                self.admin_site.admin_view(self.reset_payment_view),
+                name="claims_claim_reset_payment",
+            ),
+        ]
+        return custom_urls + urls
+
+    def reset_payment_view(self, request, claim_id):
+        claim = Claim.objects.filter(pk=claim_id).first()
+        if not claim:
+            self.message_user(request, "Utlägget hittades inte.", level="error")
+            return redirect("admin:claims_claim_changelist")
+        claim.paid_at = None
+        claim.paid_by = None
+        claim.save(update_fields=["paid_at", "paid_by"])
+        claim.add_log(
+            action=ClaimLog.Action.MARKED_PAID,
+            performed_by=request.user,
+            note="Betalningsstatus återställd via reset-knapp i admin.",
+        )
+        self.message_user(request, f"{claim} markerades som obetald.")
+        return redirect("admin:claims_claim_change", claim_id)
+
+    def get_readonly_fields(self, request, obj=None):
+        if obj and obj.is_paid:
+            return self.base_readonly + ("status", "decision_note")
+        return self.base_readonly
+
+
+@admin.register(SystemSetting)
+class SystemSettingAdmin(admin.ModelAdmin):
+    list_display = ("internal_payments_enabled", "updated_at")
+    list_display_links = ("updated_at",)
+    list_editable = ("internal_payments_enabled",)
+    actions = None
+
+    def has_add_permission(self, request):
+        return not SystemSetting.objects.exists()
 
 
 @admin.register(ClaimLog)