"""Tests for the bounded action executor (actions.py).

All API calls are mocked — no live state-hub required.
"""
from __future__ import annotations

from unittest.mock import MagicMock, call, patch

import pytest

from actions import (
    SANCTIONED_ACTIONS,
    execute,
    parse_plan,
)


# ---------------------------------------------------------------------------
# parse_plan
# ---------------------------------------------------------------------------

class TestParsePlan:
    def test_extracts_json_from_markdown(self):
        response = (
            "Here is my analysis.\n\n"
            "```json\n"
            '{"observations": ["all good"], "progress_events": [], '
            '"tasks_to_update": [], "tasks_to_flag": []}\n'
            "```\n\n"
            "Let me know if you need anything else."
        )
        plan = parse_plan(response)
        assert plan["observations"] == ["all good"]
        assert plan["progress_events"] == []

    def test_returns_empty_plan_on_no_json_block(self):
        plan = parse_plan("Just some text with no JSON block.")
        assert plan == {"progress_events": [], "tasks_to_update": [], "tasks_to_flag": []}

    def test_returns_empty_plan_on_malformed_json(self):
        response = "```json\n{broken json\n```"
        plan = parse_plan(response)
        assert plan == {"progress_events": [], "tasks_to_update": [], "tasks_to_flag": []}

    def test_handles_multiple_json_blocks_uses_first(self):
        response = (
            "```json\n{\"progress_events\": [{\"summary\": \"first\"}], "
            "\"tasks_to_update\": [], \"tasks_to_flag\": []}\n```\n"
            "```json\n{\"progress_events\": [{\"summary\": \"second\"}], "
            "\"tasks_to_update\": [], \"tasks_to_flag\": []}\n```"
        )
        plan = parse_plan(response)
        assert plan["progress_events"][0]["summary"] == "first"

    def test_missing_keys_are_defaulted(self):
        response = '```json\n{"observations": ["noted"]}\n```'
        plan = parse_plan(response)
        assert "progress_events" in plan
        assert "tasks_to_update" in plan
        assert "tasks_to_flag" in plan


# ---------------------------------------------------------------------------
# execute — dry run
# ---------------------------------------------------------------------------

class TestExecuteDryRun:
    def test_dry_run_makes_no_api_calls(self):
        plan = {
            "progress_events": [{"summary": "test", "workstream_id": None, "event_type": "note"}],
            "tasks_to_update": [{"task_id": "t1", "status": "done"}],
            "tasks_to_flag": [{"task_id": "t2", "note": "needs review"}],
        }
        with patch("httpx.post") as mock_post, patch("httpx.patch") as mock_patch:
            results = execute(plan, dry_run=True)
        mock_post.assert_not_called()
        mock_patch.assert_not_called()

    def test_dry_run_returns_descriptions(self):
        plan = {
            "progress_events": [{"summary": "test note", "event_type": "note"}],
            "tasks_to_update": [],
            "tasks_to_flag": [],
        }
        results = execute(plan, dry_run=True)
        assert len(results) == 1
        assert "test note" in results[0] or "dry-run" in results[0].lower()


# ---------------------------------------------------------------------------
# execute — live (mocked API)
# ---------------------------------------------------------------------------

class TestExecuteLive:
    def _ok_response(self, data: dict = None):
        resp = MagicMock()
        resp.status_code = 201
        resp.json.return_value = data or {"id": "new-id"}
        resp.raise_for_status = MagicMock()
        return resp

    def test_posts_progress_event(self):
        plan = {
            "progress_events": [
                {"summary": "session note", "workstream_id": "ws-1", "event_type": "note"}
            ],
            "tasks_to_update": [],
            "tasks_to_flag": [],
        }
        with patch("httpx.post") as mock_post:
            mock_post.return_value = self._ok_response()
            results = execute(plan)
        mock_post.assert_called_once()
        payload = mock_post.call_args[1]["json"]
        assert payload["summary"] == "session note"

    def test_patches_task_status(self):
        plan = {
            "progress_events": [],
            "tasks_to_update": [{"task_id": "abc-123", "status": "done"}],
            "tasks_to_flag": [],
        }
        with patch("httpx.patch") as mock_patch:
            mock_patch.return_value = self._ok_response()
            results = execute(plan)
        mock_patch.assert_called_once()
        call_url = mock_patch.call_args[0][0]
        assert "abc-123" in call_url

    def test_flags_task_for_human(self):
        plan = {
            "progress_events": [],
            "tasks_to_update": [],
            "tasks_to_flag": [{"task_id": "t99", "note": "needs human review"}],
        }
        with patch("httpx.patch") as mock_patch:
            mock_patch.return_value = self._ok_response()
            results = execute(plan)
        mock_patch.assert_called_once()
        payload = mock_patch.call_args[1]["json"]
        assert payload.get("needs_human") is True
        assert "needs human review" in payload.get("intervention_note", "")

    def test_gracefully_handles_api_error(self):
        plan = {
            "progress_events": [{"summary": "test", "event_type": "note"}],
            "tasks_to_update": [],
            "tasks_to_flag": [],
        }
        with patch("httpx.post") as mock_post:
            mock_post.side_effect = Exception("Connection refused")
            # Should not raise — errors are logged in results
            results = execute(plan)
        assert any("error" in r.lower() or "failed" in r.lower() for r in results)

    def test_empty_plan_returns_empty_results(self):
        plan = {"progress_events": [], "tasks_to_update": [], "tasks_to_flag": []}
        results = execute(plan)
        assert results == []


# ---------------------------------------------------------------------------
# sanctioned_actions constant
# ---------------------------------------------------------------------------

class TestSanctionedActions:
    def test_only_three_sanctioned_actions(self):
        assert len(SANCTIONED_ACTIONS) == 3

    def test_contains_expected_actions(self):
        assert "add_progress_event" in SANCTIONED_ACTIONS
        assert "update_task_status" in SANCTIONED_ACTIONS
        assert "flag_for_human" in SANCTIONED_ACTIONS

    def test_no_destructive_actions_sanctioned(self):
        for action in SANCTIONED_ACTIONS:
            assert "delete" not in action.lower()
            assert "destroy" not in action.lower()
            assert "drop" not in action.lower()