From d0150a1cee14edce64481920af539b89d5bd3cc8 Mon Sep 17 00:00:00 2001
From: Frederick Muriuki Muriithi
Date: Wed, 29 May 2024 16:10:40 -0500
Subject: Update db schema to allow user verification.

---
 ...01_ALNWj-update-schema-for-user-verification.py | 64 ++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 migrations/auth/20240529_01_ALNWj-update-schema-for-user-verification.py

diff --git a/migrations/auth/20240529_01_ALNWj-update-schema-for-user-verification.py b/migrations/auth/20240529_01_ALNWj-update-schema-for-user-verification.py
new file mode 100644
index 0000000..0cab1c3
--- /dev/null
+++ b/migrations/auth/20240529_01_ALNWj-update-schema-for-user-verification.py
@@ -0,0 +1,64 @@
+"""
+update schema for user-verification
+"""
+
+from yoyo import step
+
+__depends__ = {'20240506_01_798tW-create-jwt-refresh-tokens-table'}
+
+def add_verification_cols_to_users_table(conn):
+    "add verification columns to users table";
+    conn.execute("PRAGMA foreign_keys = OFF")
+
+    conn.execute(
+        """
+        CREATE TABLE users_new(
+            user_id TEXT PRIMARY KEY NOT NULL,
+            email TEXT UNIQUE NOT NULL,
+            name TEXT,
+            created INTEGER NOT NULL DEFAULT (unixepoch()),
+            verified INTEGER NOT NULL DEFAULT 0 CHECK (verified=0 or verified=1)
+        ) WITHOUT ROWID
+        """)
+    conn.execute(
+        """
+        INSERT INTO users_new(user_id, email, name)
+        SELECT user_id, email, name FROM users
+        """)
+    # the original table `users` has dependents, so we cannot simply do a
+    # `ALTER TABLE … RENAME TO …` since according to
+    # https://sqlite.org/lang_altertable.html#alter_table_rename
+    # from versions 3.26.0 onward, the foreign key references are **ALWAYS**
+    # changed. In this case, we create the new table first, do data transfers,
+    # drop the original and rename the new table to the same name as the
+    # original.
+    conn.execute("DROP TABLE IF EXISTS users")
+    conn.execute("ALTER TABLE users_new RENAME TO users")
+
+    
+    print("turning foreign keys should back on.")
+    conn.execute("PRAGMA foreign_key_check")
+    conn.execute("PRAGMA foreign_keys = ON")
+
+def drop_verification_cols_from_users_table(conn):
+    "Drop verification columns from users table"
+    conn.execute("ALTER TABLE users DROP COLUMN created")
+    conn.execute("ALTER TABLE users DROP COLUMN verified")
+
+steps = [
+    step(add_verification_cols_to_users_table,
+         drop_verification_cols_from_users_table),
+    step(
+        """
+        CREATE TABLE IF NOT EXISTS user_verification_codes(
+          user_id TEXT NOT NULL,
+          code TEXT NOT NULL,
+          generated INTEGER NOT NULL,
+          expires INTEGER NOT NULL,
+          PRIMARY KEY(user_id),
+          FOREIGN KEY(user_id) REFERENCES users(user_id)
+            ON UPDATE CASCADE ON DELETE CASCADE
+        ) WITHOUT ROWID
+        """,
+        "DROP TABLE IF EXISTS verification_codes")
+]
-- 
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