# Generated by Django 5.2.16 on 2026-08-15 05:46

import django.db.models.deletion
import uuid
from django.db import migrations, models


class Migration(migrations.Migration):

    initial = True

    dependencies = [
        ('projects', '0001_initial'),
    ]

    operations = [
        migrations.CreateModel(
            name='KnowledgeNode',
            fields=[
                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
                ('created_at', models.DateTimeField(auto_now_add=True)),
                ('updated_at', models.DateTimeField(auto_now=True)),
                ('node_type', models.CharField(max_length=80)),
                ('external_id', models.CharField(max_length=500)),
                ('title', models.CharField(blank=True, max_length=500)),
                ('properties', models.JSONField(blank=True, default=dict)),
                ('project', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='knowledge_nodes', to='projects.project')),
            ],
        ),
        migrations.CreateModel(
            name='KnowledgeEdge',
            fields=[
                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
                ('created_at', models.DateTimeField(auto_now_add=True)),
                ('updated_at', models.DateTimeField(auto_now=True)),
                ('edge_type', models.CharField(max_length=80)),
                ('evidence', models.JSONField(blank=True, default=list)),
                ('project', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='knowledge_edges', to='projects.project')),
                ('source', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='outgoing_edges', to='knowledge.knowledgenode')),
                ('target', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='incoming_edges', to='knowledge.knowledgenode')),
            ],
        ),
        migrations.AddConstraint(
            model_name='knowledgenode',
            constraint=models.UniqueConstraint(fields=('project', 'node_type', 'external_id'), name='unique_knowledge_node'),
        ),
        migrations.AddConstraint(
            model_name='knowledgeedge',
            constraint=models.UniqueConstraint(fields=('source', 'target', 'edge_type'), name='unique_knowledge_edge'),
        ),
    ]