from pathlib import Path
import re

ROOT = Path(__file__).resolve().parents[1]
INDEX = (ROOT / "static" / "index.html").read_text(encoding="utf-8")
PANELS = (ROOT / "static" / "panels.js").read_text(encoding="utf-8")
STYLE = (ROOT / "static" / "style.css").read_text(encoding="utf-8")
I18N = (ROOT / "static" / "i18n.js").read_text(encoding="utf-8")
COMPACT_INDEX = re.sub(r"\s+", "", INDEX)
COMPACT_PANELS = re.sub(r"\s+", "", PANELS)
COMPACT_STYLE = re.sub(r"\s+", "", STYLE)


def test_kanban_has_native_sidebar_rail_and_mobile_tab():
    assert 'data-panel="kanban"' in INDEX
    assert 'data-i18n-title="tab_kanban"' in INDEX
    assert 'onclick="switchPanel(\'kanban\')"' in INDEX
    assert 'data-label="Kanban"' in INDEX
    kanban_section = INDEX[INDEX.find('id="mainKanban"'):INDEX.find('id="mainWorkspaces"')]
    assert "<iframe" not in kanban_section.lower()


def test_kanban_has_sidebar_panel_and_main_board_mounts():
    assert '<div class="panel-view" id="panelKanban">' in INDEX
    assert 'id="kanbanSearch"' in INDEX
    assert 'id="kanbanAssigneeFilter"' in INDEX
    assert 'id="kanbanTenantFilter"' in INDEX
    assert 'id="kanbanIncludeArchived"' in INDEX
    assert 'id="kanbanList"' in INDEX
    assert '<div id="mainKanban" class="main-view">' in INDEX
    assert 'id="kanbanBoard"' in INDEX
    assert 'id="kanbanTaskPreview"' in INDEX


def test_switch_panel_lazy_loads_kanban_and_toggles_main_view():
    assert "'kanban'" in re.search(r"\[[^\]]+\]\.forEach\(p => \{\s*mainEl\.classList", PANELS).group(0)
    assert "if (nextPanel === 'kanban') await loadKanban();" in PANELS
    assert "if (_currentPanel === 'kanban') await loadKanban();" in PANELS


def test_kanban_frontend_uses_read_only_relative_api_endpoints():
    assert "'/api/kanban/board" in PANELS
    assert "api('/api/kanban/tasks/" in PANELS
    assert "api('/api/kanban/config" in PANELS
    assert "fetch('/api/kanban" not in PANELS
    assert "method: 'POST'" not in PANELS[PANELS.find("async function loadKanban"):PANELS.find("async function loadKanbanTask")]
    assert "kanban-readonly" in PANELS
    assert "kanbanTaskPreview" in PANELS
    assert "classList.add('selected')" in PANELS


def test_kanban_board_has_native_css_classes():
    for selector in (
        ".kanban-board",
        ".kanban-column",
        ".kanban-card",
        ".kanban-card-title",
        ".kanban-meta",
        ".kanban-readonly",
    ):
        assert selector in STYLE
    assert "overflow-x:auto" in COMPACT_STYLE


def test_kanban_i18n_keys_exist_in_every_locale_block():
    locale_blocks = re.findall(r"\n\s*([a-z]{2}(?:-[A-Z]{2})?): \{(.*?)\n\s*\},", I18N, flags=re.S)
    assert len(locale_blocks) >= 8
    required_keys = [
        "tab_kanban",
        "kanban_board",
        "kanban_search_tasks",
        "kanban_all_assignees",
        "kanban_all_tenants",
        "kanban_include_archived",
        "kanban_visible_tasks",
        "kanban_no_matching_tasks",
        "kanban_unavailable",
        "kanban_read_only",
        "kanban_empty",
    ]
    missing = [
        f"{locale}:{key}"
        for locale, body in locale_blocks
        for key in required_keys
        if re.search(rf"\b{re.escape(key)}\s*:", body) is None
    ]
    assert missing == []