From 361fc13741ead00c39d3313c34d1a438dfb571e0 Mon Sep 17 00:00:00 2001
From: Xevion <xevion@xevion.dev>
Date: Thu, 7 Nov 2024 11:03:21 -0600
Subject: [PATCH] Remove IPAddress model, add User model

---
 .../004_create_user_remove_ipaddress.py       | 66 +++++++++++++++++++
 backend/linkpulse/models.py                   | 15 +++--
 2 files changed, 76 insertions(+), 5 deletions(-)
 create mode 100644 backend/linkpulse/migrations/004_create_user_remove_ipaddress.py

diff --git a/backend/linkpulse/migrations/004_create_user_remove_ipaddress.py b/backend/linkpulse/migrations/004_create_user_remove_ipaddress.py
new file mode 100644
index 0000000..9322940
--- /dev/null
+++ b/backend/linkpulse/migrations/004_create_user_remove_ipaddress.py
@@ -0,0 +1,66 @@
+"""Peewee migrations -- 004_create_user_remove_ipaddress.py.
+
+Some examples (model - class or model name)::
+
+    > Model = migrator.orm['table_name']            # Return model in current state by name
+    > Model = migrator.ModelClass                   # Return model in current state by name
+
+    > migrator.sql(sql)                             # Run custom SQL
+    > migrator.run(func, *args, **kwargs)           # Run python function with the given args
+    > migrator.create_model(Model)                  # Create a model (could be used as decorator)
+    > migrator.remove_model(model, cascade=True)    # Remove a model
+    > migrator.add_fields(model, **fields)          # Add fields to a model
+    > migrator.change_fields(model, **fields)       # Change fields
+    > migrator.remove_fields(model, *field_names, cascade=True)
+    > migrator.rename_field(model, old_field_name, new_field_name)
+    > migrator.rename_table(model, new_table_name)
+    > migrator.add_index(model, *col_names, unique=False)
+    > migrator.add_not_null(model, *field_names)
+    > migrator.add_default(model, field_name, default)
+    > migrator.add_constraint(model, name, sql)
+    > migrator.drop_index(model, *col_names)
+    > migrator.drop_not_null(model, *field_names)
+    > migrator.drop_constraints(model, *constraints)
+
+"""
+
+from contextlib import suppress
+
+import peewee as pw
+from peewee_migrate import Migrator
+
+
+with suppress(ImportError):
+    import playhouse.postgres_ext as pw_pext
+
+
+def migrate(migrator: Migrator, database: pw.Database, *, fake=False):
+    """Write your migrations here."""
+    
+    @migrator.create_model
+    class User(pw.Model):
+        id = pw.AutoField()
+        email = pw.CharField(max_length=45, unique=True)
+        password_hash = pw.CharField(max_length=96)
+        created_at = pw.DateTimeField()
+        updated_at = pw.DateTimeField()
+
+        class Meta:
+            table_name = "user"
+
+    migrator.remove_model('ipaddress')
+
+
+def rollback(migrator: Migrator, database: pw.Database, *, fake=False):
+    """Write your rollback migrations here."""
+    
+    @migrator.create_model
+    class IPAddress(pw.Model):
+        ip = pw.CharField(max_length=255, primary_key=True)
+        last_seen = pw.DateTimeField()
+        count = pw.IntegerField(default=0)
+
+        class Meta:
+            table_name = "ipaddress"
+
+    migrator.remove_model('user')
diff --git a/backend/linkpulse/models.py b/backend/linkpulse/models.py
index 2ae1be2..ec7fc70 100644
--- a/backend/linkpulse/models.py
+++ b/backend/linkpulse/models.py
@@ -3,10 +3,11 @@ This module defines the database models for the LinkPulse backend.
 It also provides a base model with database connection details.
 """
 
+from datetime import datetime
 from os import getenv
 
 import structlog
-from peewee import CharField, DateTimeField, IntegerField, Model
+from peewee import CharField, DateTimeField, IntegerField, AutoField, Model
 from playhouse.db_url import connect
 
 logger = structlog.get_logger()
@@ -26,7 +27,11 @@ class BaseModel(Model):
         database = connect(url=_get_database_url())
 
 
-class IPAddress(BaseModel):
-    ip = CharField(primary_key=True)
-    last_seen = DateTimeField()  # timezone naive
-    count = IntegerField(default=0)
+class User(BaseModel):
+    id = AutoField(primary_key=True)
+    # arbitrary max length, but statistically reasonable and limits UI concerns/abuse cases
+    email = CharField(unique=True, max_length=45)
+    # full hash with encoded salt/parameters, argon2 but assume nothing
+    password_hash = CharField(max_length=96)
+    created_at = DateTimeField(default=datetime.now)
+    updated_at = DateTimeField(default=datetime.now)