from django.db import models

from apps.core.models import TimeStampedModel, UUIDModel


class ReportDefinition(UUIDModel, TimeStampedModel):
    workflow = models.ForeignKey("workflows.Workflow", on_delete=models.CASCADE, related_name="report_definitions")
    name = models.CharField(max_length=200)
    active = models.BooleanField(default=True)

    def __str__(self) -> str:
        return self.name


class ReportField(UUIDModel):
    class FieldType(models.TextChoices):
        TEXT = "text", "Text"
        INTEGER = "integer", "Integer"
        DECIMAL = "decimal", "Decimal"
        BOOLEAN = "boolean", "Boolean"
        DATE = "date", "Date"
        DATETIME = "datetime", "DateTime"
        CHOICE = "choice", "Choice"
        MULTICHOICE = "multichoice", "Multi-choice"
        MEASUREMENT = "measurement", "Measurement"
        PERCENTAGE = "percentage", "Percentage"
        WEIGHT = "weight", "Weight"
        FILE = "file", "File / image"

    definition = models.ForeignKey(ReportDefinition, on_delete=models.CASCADE, related_name="fields")
    key = models.SlugField(max_length=100)
    label = models.CharField(max_length=200)
    field_type = models.CharField(max_length=16, choices=FieldType.choices, default=FieldType.TEXT)
    required = models.BooleanField(default=False)
    choices = models.JSONField(default=list, blank=True)
    order = models.PositiveIntegerField(default=0)

    class Meta:
        ordering = ["order"]
        constraints = [
            models.UniqueConstraint(fields=["definition", "key"], name="uniq_report_field_key")
        ]


class FinalReport(UUIDModel, TimeStampedModel):
    order = models.OneToOneField("orders.ProcessingOrder", on_delete=models.CASCADE, related_name="final_report")
    data = models.JSONField(default=dict, blank=True)
    generated_at = models.DateTimeField(auto_now_add=True)