# Generated by Django 5.2.14 on 2026-06-16 17:36

import django.core.validators
import django.db.models.deletion
import django.utils.timezone
from django.conf import settings
from django.db import migrations
from django.db import models


class Migration(migrations.Migration):
    dependencies = [
        ("documents", "0027_documentbarcode"),
    ]

    operations = [
        migrations.CreateModel(
            name="OcrTemplate",
            fields=[
                (
                    "id",
                    models.AutoField(
                        auto_created=True,
                        primary_key=True,
                        serialize=False,
                        verbose_name="ID",
                    ),
                ),
                ("name", models.CharField(max_length=128, verbose_name="name")),
                (
                    "owner",
                    models.ForeignKey(
                        blank=True,
                        default=None,
                        null=True,
                        on_delete=django.db.models.deletion.SET_NULL,
                        to=settings.AUTH_USER_MODEL,
                        verbose_name="owner",
                    ),
                ),
                (
                    "source_width",
                    models.PositiveIntegerField(
                        help_text="Width of the image the zones were drawn on (px)",
                        validators=[django.core.validators.MinValueValidator(1)],
                        verbose_name="source width",
                    ),
                ),
                (
                    "source_height",
                    models.PositiveIntegerField(
                        help_text="Height of the image the zones were drawn on (px)",
                        validators=[django.core.validators.MinValueValidator(1)],
                        verbose_name="source height",
                    ),
                ),
                ("enabled", models.BooleanField(default=True, verbose_name="enabled")),
                (
                    "combine_formats",
                    models.JSONField(
                        blank=True,
                        default=dict,
                        help_text="Per-target format strings for combining several zones into one field, keyed by target (custom field id, or 'title'/'asn'/'created'). Tokens like {Zone Name} are replaced with that zone's value.",
                        verbose_name="combine formats",
                    ),
                ),
                (
                    "created",
                    models.DateTimeField(
                        db_index=True,
                        default=django.utils.timezone.now,
                        editable=False,
                        verbose_name="created",
                    ),
                ),
                (
                    "updated",
                    models.DateTimeField(auto_now=True, verbose_name="updated"),
                ),
                (
                    "document_type",
                    models.ForeignKey(
                        on_delete=django.db.models.deletion.CASCADE,
                        related_name="ocr_templates",
                        to="documents.documenttype",
                        verbose_name="document type",
                    ),
                ),
                (
                    "sample_document",
                    models.ForeignKey(
                        blank=True,
                        help_text="Document used for previewing zones in the editor",
                        null=True,
                        on_delete=django.db.models.deletion.SET_NULL,
                        related_name="+",
                        to="documents.document",
                        verbose_name="sample document",
                    ),
                ),
            ],
            options={
                "verbose_name": "OCR template",
                "verbose_name_plural": "OCR templates",
                "ordering": ("name",),
            },
        ),
        migrations.CreateModel(
            name="OcrTemplateZone",
            fields=[
                (
                    "id",
                    models.AutoField(
                        auto_created=True,
                        primary_key=True,
                        serialize=False,
                        verbose_name="ID",
                    ),
                ),
                (
                    "name",
                    models.CharField(
                        help_text="Descriptive name for this zone (e.g. 'Invoice Number')",
                        max_length=128,
                        verbose_name="zone name",
                    ),
                ),
                (
                    "target",
                    models.CharField(
                        choices=[
                            ("custom_field", "Custom field"),
                            ("title", "Title"),
                            ("asn", "Archive serial number"),
                            ("created", "Date created"),
                        ],
                        default="custom_field",
                        help_text="Where the extracted value is written: a custom field, or a built-in document field (title, ASN, created date)",
                        max_length=20,
                        verbose_name="target",
                    ),
                ),
                (
                    "page",
                    models.IntegerField(
                        blank=True,
                        help_text="Page (1 = first, -1 = last; blank uses the template default)",
                        null=True,
                        verbose_name="page",
                    ),
                ),
                (
                    "x",
                    models.PositiveIntegerField(
                        help_text="Left edge (px)",
                        verbose_name="x",
                    ),
                ),
                (
                    "y",
                    models.PositiveIntegerField(
                        help_text="Top edge (px)",
                        verbose_name="y",
                    ),
                ),
                (
                    "width",
                    models.PositiveIntegerField(
                        help_text="Zone width (px)",
                        validators=[django.core.validators.MinValueValidator(1)],
                        verbose_name="width",
                    ),
                ),
                (
                    "height",
                    models.PositiveIntegerField(
                        help_text="Zone height (px)",
                        validators=[django.core.validators.MinValueValidator(1)],
                        verbose_name="height",
                    ),
                ),
                (
                    "zone_source_width",
                    models.PositiveIntegerField(
                        blank=True,
                        help_text="Width of the page image this zone was drawn on (px). Falls back to template source_width if unset.",
                        null=True,
                        verbose_name="zone source width",
                    ),
                ),
                (
                    "zone_source_height",
                    models.PositiveIntegerField(
                        blank=True,
                        help_text="Height of the page image this zone was drawn on (px). Falls back to template source_height if unset.",
                        null=True,
                        verbose_name="zone source height",
                    ),
                ),
                (
                    "ocr_language",
                    models.CharField(
                        default="eng",
                        help_text="Tesseract language code(s), e.g. 'deu+eng'",
                        max_length=20,
                        verbose_name="OCR language",
                    ),
                ),
                (
                    "transform",
                    models.CharField(
                        choices=[
                            ("none", "None"),
                            ("strip", "Strip whitespace"),
                            ("uppercase", "Uppercase"),
                            ("lowercase", "Lowercase"),
                            ("numeric", "Numeric only"),
                            (
                                "strip_punctuation",
                                "Remove leading/trailing punctuation",
                            ),
                            ("date", "Parse date"),
                            ("qr_code", "Read QR/barcode"),
                        ],
                        default="strip",
                        max_length=20,
                        verbose_name="transform",
                    ),
                ),
                (
                    "date_format",
                    models.CharField(
                        blank=True,
                        default="",
                        help_text="Python strptime format for the 'Parse date' transform (e.g. %d.%m.%Y). Blank = auto-detect.",
                        max_length=64,
                        verbose_name="date format",
                    ),
                ),
                (
                    "validation_regex",
                    models.CharField(
                        blank=True,
                        default="",
                        help_text="Optional regex pattern — extracted text is only accepted if it matches",
                        max_length=256,
                        verbose_name="validation regex",
                    ),
                ),
                ("order", models.PositiveIntegerField(default=0, verbose_name="order")),
                (
                    "custom_field",
                    models.ForeignKey(
                        blank=True,
                        help_text="Target custom field (only used when target is 'custom_field')",
                        null=True,
                        on_delete=django.db.models.deletion.CASCADE,
                        related_name="ocr_zones",
                        to="documents.customfield",
                        verbose_name="custom field",
                    ),
                ),
                (
                    "template",
                    models.ForeignKey(
                        on_delete=django.db.models.deletion.CASCADE,
                        related_name="zones",
                        to="documents.ocrtemplate",
                        verbose_name="template",
                    ),
                ),
            ],
            options={
                "verbose_name": "OCR template zone",
                "verbose_name_plural": "OCR template zones",
                "ordering": ("template", "order"),
            },
        ),
    ]