import ast
from pathlib import Path


def _planner_source():
    src = Path(__file__).resolve().parents[1].joinpath('services', 'project_planner.py').read_text(encoding='utf-8')
    tree = ast.parse(src)
    for node in tree.body:
        if isinstance(node, ast.FunctionDef) and node.name == '_project_package_plan':
            return ast.get_source_segment(src, node) or ''
    raise AssertionError('planner not found')


def test_eddy_intent_is_first_class_and_fisheries_not_default_fallback():
    src = _planner_source()
    assert '中尺度涡旋' in src
    assert '物理海洋过程研究' in src
    assert 'SSH / SLA' in src
    assert '地转流 / 海流 U-V' in src
    assert '默认先提供海洋环境背景，不自动引入无关渔业数据' in src


def test_generic_pacific_is_recognized_without_unsafe_cross_dateline_bbox():
    src = _planner_source()
    assert '(("太平洋", "pacific"), [], "太平洋")' in src
    assert '更精确的太平洋子区域/经纬度范围' in src