# This file is part of sbs
#
# Copyright (C) 2025 Steve Milner
#
# SPDX-License-Identifier: GPL-3.0-or-later
# Generated by Gemini 2.5 Flash

import pytest

from unittest.mock import patch, MagicMock
from urllib import parse

from sbs.ds.card import Card
from sbs.ds.jql import jira


@pytest.fixture
def mock_response():
    """
    A pytest fixture to create a mock requests.Response object.
    """
    mock_resp = MagicMock()
    mock_resp.status_code = 200
    return mock_resp


def test_jira_fetches_and_parses_single_issue(mock_response):
    """
    Test that the jira function correctly fetches and parses a single Jira issue.
    """
    # Define the mock JSON response from Jira API
    mock_jira_json = {
        "issues": [
            {
                "key": "PROJ-123",
                "fields": {
                    "assignee": {"name": "John Doe"},
                    "summary": "Implement feature A",
                    "description": "Details for feature A implementation.",
                    "customfield_12310243": 5,
                },
            }
        ]
    }
    mock_response.json.return_value = mock_jira_json

    # Patch requests.get to return our mock_response
    with patch("requests.get", return_value=mock_response) as mock_get:
        endpoint = "https://jira.example.com/rest/api/2"
        token = "test_token"
        query = "project = PROJ AND status = Open"

        cards = list(jira(endpoint, token, query))

        # Assertions
        expected_fjql = parse.quote_plus(query)
        expected_fields = parse.quote_plus(
            "assignee,summary,description,customfield_12310243"
        )
        expected_url = f"{endpoint}/search/?fields={expected_fields}&maxResults=100&jql={expected_fjql}"

        mock_get.assert_called_once_with(
            expected_url, headers={"Authorization": f"Bearer {token}"}
        )

        assert len(cards) == 1
        card = cards[0]
        assert isinstance(card, Card)
        assert card.key == "PROJ-123"
        assert card.assignee == "John Doe"
        assert card.summary == "Implement feature A"
        assert card.description == "Details for feature A implementation."
        assert card.story_points == 5


def test_jira_fetches_and_parses_multiple_issues(mock_response):
    """
    Test that the jira function correctly fetches and parses multiple Jira issues.
    """
    mock_jira_json = {
        "issues": [
            {
                "key": "PROJ-1",
                "fields": {
                    "assignee": {"name": "User A"},
                    "summary": "Task 1",
                    "description": "Description 1",
                    "customfield_12310243": 3,
                },
            },
            {
                "key": "PROJ-2",
                "fields": {
                    "assignee": {"name": "User B"},
                    "summary": "Task 2",
                    "description": "Description 2",
                    "customfield_12310243": 8,
                },
            },
        ]
    }
    mock_response.json.return_value = mock_jira_json

    with patch("requests.get", return_value=mock_response):
        cards = list(jira("dummy_endpoint", "dummy_token", "dummy_query"))

        assert len(cards) == 2
        assert cards[0].key == "PROJ-1"
        assert cards[1].assignee == "User B"
        assert cards[1].story_points == 8


def test_jira_handles_issue_with_no_assignee(mock_response):
    """
    Test that the jira function correctly handles issues where the assignee field is missing.
    It should default the assignee name to an empty string.
    """
    mock_jira_json = {
        "issues": [
            {
                "key": "PROJ-BUG",
                "fields": {
                    "summary": "Untriaged Bug",
                    "description": "This bug has no assignee.",
                    "customfield_12310243": 1,
                },
            }
        ]
    }
    mock_response.json.return_value = mock_jira_json

    with patch("requests.get", return_value=mock_response):
        cards = list(jira("dummy_endpoint", "dummy_token", "dummy_query"))

        assert len(cards) == 1
        card = cards[0]
        assert card.key == "PROJ-BUG"
        assert card.assignee == ""  # Should be an empty string
        assert card.summary == "Untriaged Bug"
        assert card.story_points == 1


def test_jira_handles_empty_issues_list(mock_response):
    """
    Test that the jira function returns an empty list if the Jira API returns no issues.
    """
    mock_jira_json = {"issues": []}
    mock_response.json.return_value = mock_jira_json

    with patch("requests.get", return_value=mock_response):
        cards = list(jira("dummy_endpoint", "dummy_token", "dummy_query"))
        assert len(cards) == 0


def test_jira_handles_api_error_response(mock_response):
    """
    Test that the jira function gracefully handles a non-200 HTTP status code
    by letting the requests library's behavior (e.g., raise_for_status) propagate
    or by handling potential JSON decoding errors.
    """
    mock_response.status_code = 404
    # Simulate a JSON structure even for an error, as .json() is always called
    mock_response.json.return_value = {"errorMessages": ["Issue Does Not Exist"]}

    # Patch requests.get to return our mock_response
    with patch("requests.get", return_value=mock_response) as mock_get:
        endpoint = "https://jira.example.com/rest/api/2"
        token = "test_token"
        query = "project = NONEXISTENT"

        # The original code calls .json() directly, so it expects JSON.
        # If the API returns a non-200 status and valid JSON, the code
        # will proceed. If it returns non-JSON, .json() would raise an error.
        # For this test, we assume .json() works, and we are testing
        # how the internal logic handles the 'issues' key not being present
        # or the structure being different.
        # In this specific case, the KeyError will be raised because 'issues'
        # is not in the mock_jira_json for an error scenario. list() is used to
        # call the underlying __next__().
        with pytest.raises(KeyError):
            list(jira(endpoint, token, query))

        expected_fjql = parse.quote_plus(query)
        expected_fields = parse.quote_plus(
            "assignee,summary,description,customfield_12310243"
        )
        expected_url = f"{endpoint}/search/?fields={expected_fields}&maxResults=100&jql={expected_fjql}"

        mock_get.assert_called_once_with(
            expected_url, headers={"Authorization": f"Bearer {token}"}
        )