Prepare ERP source for Gitea deployment

2026-06-20 15:01:44 +05:30
commit 5c75eb6bd9
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+"""Phase 7S.1E email queue and retry metadata
+
+Revision ID: 20260610_phase_7s1e_email_queue
+Revises: 20260609_phase_7s1c_email_preferences
+Create Date: 2026-06-10
+"""
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "20260610_phase_7s1e_email_queue"
+down_revision = "20260609_phase_7s1c_email_preferences"
+branch_labels = None
+depends_on = None
+
+
+def _existing_columns(table_name: str) -> set[str]:
+    bind = op.get_bind()
+    inspector = sa.inspect(bind)
+    try:
+        return {col["name"] for col in inspector.get_columns(table_name)}
+    except Exception:
+        return set()
+
+
+def _add_column_if_missing(table_name: str, column: sa.Column) -> None:
+    if column.name not in _existing_columns(table_name):
+        op.add_column(table_name, column)
+
+
+def upgrade() -> None:
+    _add_column_if_missing("email_logs", sa.Column("attempt_count", sa.Integer(), nullable=False, server_default="0"))
+    _add_column_if_missing("email_logs", sa.Column("max_attempts", sa.Integer(), nullable=False, server_default="3"))
+    _add_column_if_missing("email_logs", sa.Column("queue_priority", sa.Integer(), nullable=False, server_default="100"))
+    _add_column_if_missing("email_logs", sa.Column("is_retryable", sa.Boolean(), nullable=False, server_default=sa.true()))
+    _add_column_if_missing("email_logs", sa.Column("queued_at", sa.DateTime(timezone=True), nullable=True))
+    _add_column_if_missing("email_logs", sa.Column("next_retry_at", sa.DateTime(timezone=True), nullable=True))
+    _add_column_if_missing("email_logs", sa.Column("last_attempt_at", sa.DateTime(timezone=True), nullable=True))
+    _add_column_if_missing("email_logs", sa.Column("processing_started_at", sa.DateTime(timezone=True), nullable=True))
+
+    existing_indexes = {idx["name"] for idx in sa.inspect(op.get_bind()).get_indexes("email_logs")}
+    for name, cols in {
+        "ix_email_logs_queue_priority": ["queue_priority"],
+        "ix_email_logs_is_retryable": ["is_retryable"],
+        "ix_email_logs_queued_at": ["queued_at"],
+        "ix_email_logs_next_retry_at": ["next_retry_at"],
+        "ix_email_logs_last_attempt_at": ["last_attempt_at"],
+        "ix_email_logs_processing_started_at": ["processing_started_at"],
+    }.items():
+        if name not in existing_indexes:
+            op.create_index(name, "email_logs", cols)
+
+
+def downgrade() -> None:
+    # Safe downgrade for development only. SQLite may not support all drop-column
+    # operations depending on version, so production rollback should use backups.
+    for name in [
+        "ix_email_logs_processing_started_at",
+        "ix_email_logs_last_attempt_at",
+        "ix_email_logs_next_retry_at",
+        "ix_email_logs_queued_at",
+        "ix_email_logs_is_retryable",
+        "ix_email_logs_queue_priority",
+    ]:
+        try:
+            op.drop_index(name, table_name="email_logs")
+        except Exception:
+            pass
+    for col in [
+        "processing_started_at",
+        "last_attempt_at",
+        "next_retry_at",
+        "queued_at",
+        "is_retryable",
+        "queue_priority",
+        "max_attempts",
+        "attempt_count",
+    ]:
+        try:
+            op.drop_column("email_logs", col)
+        except Exception:
+            pass