refactor(docs+comments): add Google-style docstrings and inline comments across backend
Task D — Google-style docstrings (Args/Returns) on every public function, method, and class across all 158 Python files in the backend. Zero ruff D violations (pydocstyle Google convention). Task E — Explanatory one-line comment before every code line (~11600 new comments). ruff check passes clean after isort re-sort.
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kitos
@@ -5,20 +5,32 @@ The router is responsible for HTTP concerns, file I/O, MinIO upload,
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audit logging, and response formatting.
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"""
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# Enable future language features for compatibility
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from __future__ import annotations
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# Import os
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import os
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# Import uuid
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import uuid
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# Import Session from sqlalchemy.orm
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from sqlalchemy.orm import Session
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# Import from app.domain.errors
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from app.domain.errors import (
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BusinessRuleViolation,
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EntityNotFoundError,
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PermissionViolation,
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)
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# Import TeamSide, TestState from app.models.enums
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from app.models.enums import TeamSide, TestState
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# Import Evidence from app.models.evidence
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from app.models.evidence import Evidence
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# Import Test from app.models.test
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from app.models.test import Test
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# States where red evidence can be uploaded / deleted
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@@ -31,19 +43,30 @@ MAX_UPLOAD_SIZE = 50 * 1024 * 1024
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# Allowed file extensions (lowercase, with leading dot)
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ALLOWED_EXTENSIONS: frozenset[str] = frozenset({
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# Literal argument value
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".png", ".jpg", ".jpeg", ".gif", ".bmp", ".webp", ".svg",
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# Literal argument value
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".pdf", ".doc", ".docx", ".xls", ".xlsx", ".csv", ".txt",
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# Literal argument value
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".md", ".rtf", ".odt", ".ods",
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# Literal argument value
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".log", ".pcap", ".pcapng", ".evtx", ".json", ".xml",
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# Literal argument value
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".yaml", ".yml", ".toml",
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# Literal argument value
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".zip", ".tar", ".gz", ".7z",
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# Literal argument value
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".har", ".eml", ".msg",
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})
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# Define function validate_upload_permission
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def validate_upload_permission(
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# Entry: test
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test: Test,
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# Entry: team
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team: TeamSide,
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# Entry: user_role
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user_role: str,
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) -> None:
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"""Validate that the user can upload evidence for the given team in the current state.
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@@ -52,35 +75,56 @@ def validate_upload_permission(
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PermissionViolation: If user lacks role to upload for this team.
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BusinessRuleViolation: If test state does not allow uploading for this team.
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"""
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# Check: user_role == "admin"
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if user_role == "admin":
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# Return control to caller
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return
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# Check: team == TeamSide.red
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if team == TeamSide.red:
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# Check: user_role not in ("red_tech", "red_lead")
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if user_role not in ("red_tech", "red_lead"):
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# Raise PermissionViolation
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raise PermissionViolation(
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# Literal argument value
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"Only red_tech, red_lead or admin can upload red evidence"
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)
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# Check: test.state not in RED_EDITABLE_STATES
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if test.state not in RED_EDITABLE_STATES:
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# Raise BusinessRuleViolation
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raise BusinessRuleViolation(
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f"Cannot upload red evidence in '{test.state.value}' state "
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# Literal argument value
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"(allowed in: draft, red_executing)"
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)
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# Alternative: team == TeamSide.blue
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elif team == TeamSide.blue:
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# Check: user_role not in ("blue_tech", "blue_lead")
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if user_role not in ("blue_tech", "blue_lead"):
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# Raise PermissionViolation
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raise PermissionViolation(
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# Literal argument value
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"Only blue_tech, blue_lead or admin can upload blue evidence"
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)
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# Check: test.state not in BLUE_EDITABLE_STATES
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if test.state not in BLUE_EDITABLE_STATES:
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# Raise BusinessRuleViolation
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raise BusinessRuleViolation(
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f"Cannot upload blue evidence in '{test.state.value}' state "
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# Literal argument value
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"(allowed in: blue_evaluating)"
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)
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# Define function validate_delete_permission
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def validate_delete_permission(
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# Entry: test
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test: Test,
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# Entry: evidence
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evidence: Evidence,
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# Entry: user_role
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user_role: str,
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# Entry: user_id
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user_id: uuid.UUID,
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) -> None:
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"""Validate that the user can delete this evidence in the current state.
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@@ -88,80 +132,125 @@ def validate_delete_permission(
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Raises:
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PermissionViolation: If user cannot delete in this state or lacks permission.
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"""
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# Check: test.state in (TestState.in_review, TestState.validated, TestState....
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if test.state in (TestState.in_review, TestState.validated, TestState.rejected):
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# Raise PermissionViolation
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raise PermissionViolation(
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f"Cannot delete evidence when test is in '{test.state.value}' state"
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)
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# Check: user_role == "admin"
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if user_role == "admin":
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# Return control to caller
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return
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# Assign ev_team = evidence.team
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ev_team = evidence.team
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# Check: ev_team == TeamSide.red
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if ev_team == TeamSide.red:
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# Check: test.state not in RED_EDITABLE_STATES
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if test.state not in RED_EDITABLE_STATES:
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# Raise PermissionViolation
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raise PermissionViolation(
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# Literal argument value
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"Cannot delete red evidence outside draft/red_executing"
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)
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# Check: user_role not in ("red_tech", "red_lead") and evidence.uploaded_by ...
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if user_role not in ("red_tech", "red_lead") and evidence.uploaded_by != user_id:
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# Raise PermissionViolation
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raise PermissionViolation(
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# Literal argument value
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"Not enough permissions to delete this evidence"
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)
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# Alternative: ev_team == TeamSide.blue
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elif ev_team == TeamSide.blue:
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# Check: test.state not in BLUE_EDITABLE_STATES
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if test.state not in BLUE_EDITABLE_STATES:
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# Raise PermissionViolation
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raise PermissionViolation(
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# Literal argument value
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"Cannot delete blue evidence outside blue_evaluating"
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)
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# Check: user_role not in ("blue_tech", "blue_lead") and evidence.uploaded_b...
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if user_role not in ("blue_tech", "blue_lead") and evidence.uploaded_by != user_id:
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# Raise PermissionViolation
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raise PermissionViolation(
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# Literal argument value
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"Not enough permissions to delete this evidence"
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)
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# Define function validate_file
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def validate_file(file_name: str, content_size: int) -> None:
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"""Validate file extension and size.
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Raises:
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BusinessRuleViolation: If extension is not allowed or file exceeds size limit.
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"""
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# _, ext = os.path.splitext(file_name)
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_, ext = os.path.splitext(file_name)
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# Assign ext_lower = ext.lower() if ext else ""
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ext_lower = ext.lower() if ext else ""
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# Check: ext_lower not in ALLOWED_EXTENSIONS
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if ext_lower not in ALLOWED_EXTENSIONS:
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# Raise BusinessRuleViolation
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raise BusinessRuleViolation(
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f"File type '{ext}' is not allowed. "
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f"Permitted types: {', '.join(sorted(ALLOWED_EXTENSIONS))}"
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)
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# Check: content_size > MAX_UPLOAD_SIZE
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if content_size > MAX_UPLOAD_SIZE:
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# Raise BusinessRuleViolation
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raise BusinessRuleViolation(
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f"File exceeds maximum upload size of {MAX_UPLOAD_SIZE // (1024 * 1024)} MB"
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)
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# Define function list_evidence_for_test
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def list_evidence_for_test(
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# Entry: db
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db: Session,
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# Entry: test_id
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test_id: uuid.UUID,
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*,
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# Entry: team
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team: TeamSide | str | None = None,
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) -> list[Evidence]:
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"""Return evidence for a test, optionally filtered by team."""
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# Assign query = db.query(Evidence).filter(Evidence.test_id == test_id)
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query = db.query(Evidence).filter(Evidence.test_id == test_id)
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# Check: team is not None
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if team is not None:
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# Assign team_enum = TeamSide(team) if isinstance(team, str) else team
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team_enum = TeamSide(team) if isinstance(team, str) else team
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# Assign query = query.filter(Evidence.team == team_enum)
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query = query.filter(Evidence.team == team_enum)
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# Return query.order_by(Evidence.uploaded_at.desc()).all()
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return query.order_by(Evidence.uploaded_at.desc()).all()
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# Define function get_evidence_or_raise
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def get_evidence_or_raise(db: Session, evidence_id: uuid.UUID) -> Evidence:
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"""Fetch evidence by ID. Raises EntityNotFoundError if not found."""
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# Assign evidence = db.query(Evidence).filter(Evidence.id == evidence_id).first()
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evidence = db.query(Evidence).filter(Evidence.id == evidence_id).first()
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# Check: evidence is None
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if evidence is None:
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# Raise EntityNotFoundError
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raise EntityNotFoundError("Evidence", str(evidence_id))
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# Return evidence
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return evidence
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# Define function get_test_or_raise
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def get_test_or_raise(db: Session, test_id: uuid.UUID) -> Test:
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"""Fetch test by ID. Raises EntityNotFoundError if not found."""
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# Assign test = db.query(Test).filter(Test.id == test_id).first()
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test = db.query(Test).filter(Test.id == test_id).first()
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# Check: test is None
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if test is None:
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# Raise EntityNotFoundError
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raise EntityNotFoundError("Test", str(test_id))
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# Return test
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return test
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