feat: initial commit

backend/alembic/versions/010_kpi_pricing.py

@@ -0,0 +1,75 @@
+"""KPI analytics and pricing tiers
+
+Revision ID: 010
+Revises: 009
+Create Date: 2026-03-02
+
+"""
+from typing import Sequence, Union
+from alembic import op
+import sqlalchemy as sa
+
+revision: str = "010"
+down_revision: Union[str, None] = "009"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Add project_manager to userrole enum — must be outside a transaction
+    op.execute("COMMIT")
+    op.execute("ALTER TYPE userrole ADD VALUE IF NOT EXISTS 'project_manager'")
+    op.execute("BEGIN")
+
+    # Lifecycle timestamps + estimated_price on orders
+    op.execute(
+        "ALTER TABLE orders "
+        "ADD COLUMN IF NOT EXISTS submitted_at TIMESTAMP WITHOUT TIME ZONE"
+    )
+    op.execute(
+        "ALTER TABLE orders "
+        "ADD COLUMN IF NOT EXISTS processing_started_at TIMESTAMP WITHOUT TIME ZONE"
+    )
+    op.execute(
+        "ALTER TABLE orders "
+        "ADD COLUMN IF NOT EXISTS completed_at TIMESTAMP WITHOUT TIME ZONE"
+    )
+    op.execute(
+        "ALTER TABLE orders "
+        "ADD COLUMN IF NOT EXISTS rejected_at TIMESTAMP WITHOUT TIME ZONE"
+    )
+    op.execute(
+        "ALTER TABLE orders "
+        "ADD COLUMN IF NOT EXISTS estimated_price NUMERIC(12, 2)"
+    )
+
+    # pricing_tiers table
+    op.execute(
+        """
+        CREATE TABLE IF NOT EXISTS pricing_tiers (
+            id SERIAL PRIMARY KEY,
+            category_key VARCHAR(100) NOT NULL,
+            quality_level VARCHAR(50) NOT NULL DEFAULT 'Normal',
+            price_per_item NUMERIC(10, 2) NOT NULL,
+            description TEXT,
+            is_active BOOLEAN NOT NULL DEFAULT TRUE,
+            created_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+            updated_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+            CONSTRAINT uq_pricing_tier UNIQUE (category_key, quality_level)
+        )
+        """
+    )
+    op.execute(
+        "CREATE INDEX IF NOT EXISTS ix_pricing_tiers_category_key "
+        "ON pricing_tiers (category_key)"
+    )
+
+
+def downgrade() -> None:
+    op.execute("DROP TABLE IF EXISTS pricing_tiers")
+    op.execute("ALTER TABLE orders DROP COLUMN IF EXISTS estimated_price")
+    op.execute("ALTER TABLE orders DROP COLUMN IF EXISTS rejected_at")
+    op.execute("ALTER TABLE orders DROP COLUMN IF EXISTS completed_at")
+    op.execute("ALTER TABLE orders DROP COLUMN IF EXISTS processing_started_at")
+    op.execute("ALTER TABLE orders DROP COLUMN IF EXISTS submitted_at")
+    # Note: removing enum values is not supported in PostgreSQL without full recreation