fix error in gitignore

apps/reservations/models.py

@@ -0,0 +1,102 @@
+from django.db import models
+from django.utils import timezone
+
+from apps.core.models import TimeStampedModel, UUIDModel
+
+
+class Facility(UUIDModel, TimeStampedModel):
+    name = models.CharField(max_length=200)
+
+    def __str__(self) -> str:
+        return self.name
+
+
+class ProcessingLine(UUIDModel, TimeStampedModel):
+    facility = models.ForeignKey(Facility, on_delete=models.CASCADE, related_name="lines")
+    name = models.CharField(max_length=200)
+
+    def __str__(self) -> str:
+        return f"{self.facility.name} / {self.name}"
+
+
+class Holiday(UUIDModel):
+    date = models.DateField(unique=True)
+
+
+class FacilitySchedule(UUIDModel, TimeStampedModel):
+    """Per-facility, per-date availability: capacity for the day and days off.
+
+    If a schedule row exists for a date and ``is_open`` is False, no slots are
+    generated for that day. ``capacity``/``start_time``/``end_time`` override the
+    global Reservation settings for that date.
+    """
+
+    facility = models.ForeignKey(Facility, on_delete=models.CASCADE, related_name="schedules")
+    date = models.DateField(db_index=True)
+    is_open = models.BooleanField(default=True)
+    capacity = models.PositiveIntegerField(default=2)
+    start_time = models.TimeField(null=True, blank=True)
+    end_time = models.TimeField(null=True, blank=True)
+    note = models.CharField(max_length=200, blank=True)
+
+    class Meta:
+        ordering = ["-date"]
+        constraints = [
+            models.UniqueConstraint(fields=["facility", "date"], name="uniq_facility_schedule_date")
+        ]
+
+    def __str__(self) -> str:
+        return f"{self.facility.name} {self.date}"
+
+
+class Slot(UUIDModel):
+    facility = models.ForeignKey(Facility, on_delete=models.CASCADE, related_name="slots")
+    line = models.ForeignKey(
+        ProcessingLine, on_delete=models.CASCADE, related_name="slots", null=True, blank=True
+    )
+    date = models.DateField(db_index=True)
+    start_time = models.TimeField()
+    end_time = models.TimeField()
+    capacity = models.PositiveIntegerField(default=1)
+    max_weight_kg = models.DecimalField(max_digits=12, decimal_places=2, null=True, blank=True)
+    booked_count = models.PositiveIntegerField(default=0)
+    blocked = models.BooleanField(default=False)
+
+    class Meta:
+        constraints = [
+            models.UniqueConstraint(fields=["facility", "line", "date", "start_time"], name="uniq_slot_time")
+        ]
+
+    def is_available(self) -> bool:
+        return (
+            not self.blocked
+            and self.booked_count < self.capacity
+            and self.date >= timezone.localdate()
+        )
+
+
+class Reservation(UUIDModel, TimeStampedModel):
+    class Status(models.TextChoices):
+        PENDING = "pending", "Pending approval"
+        CONFIRMED = "confirmed", "Confirmed"
+        REJECTED = "rejected", "Rejected"
+        ARRIVED = "arrived", "Arrived"
+        WEIGHED = "weighed", "Weighed"
+        CANCELLED = "cancelled", "Cancelled"
+        EXPIRED = "expired", "Expired"
+
+    title = models.CharField(max_length=200, blank=True)
+    customer = models.ForeignKey("accounts.Customer", on_delete=models.CASCADE, related_name="reservations")
+    slot = models.ForeignKey(Slot, on_delete=models.PROTECT, related_name="reservations")
+    status = models.CharField(max_length=16, choices=Status.choices, default=Status.PENDING)
+    notes = models.TextField(blank=True)
+    approved_by = models.ForeignKey(
+        "accounts.User", null=True, blank=True, on_delete=models.SET_NULL, related_name="approved_reservations"
+    )
+    approved_at = models.DateTimeField(null=True, blank=True)
+
+    class Meta:
+        ordering = ["-created_at"]
+
+    def __str__(self) -> str:
+        return self.title or f"Reservation {self.id}"