"""Only unassigned Not-Started tasks may be downloaded.

A task carrying an 'Assigned to' avatar in the Planner grid has been picked up
by a person; the bot must leave it — and its status — alone.
"""
from __future__ import annotations

import sys
from pathlib import Path

import pandas as pd

ROOT = Path(__file__).resolve().parent.parent
SRC = ROOT / "src"
for _p in (str(ROOT), str(SRC)):
    if _p not in sys.path:
        sys.path.insert(0, _p)

from onedrive_planner_http import _task_assignee_ids, _write_summary  # noqa: E402


class TestTaskAssigneeIds:
    def test_unassigned_task_has_no_assignees(self):
        assert _task_assignee_ids({"title": "8.24.26"}) == []
        assert _task_assignee_ids({"title": "8.21.26", "assignments": {}}) == []
        assert _task_assignee_ids({"assignments": None}) == []

    def test_assigned_task_returns_every_user_id(self):
        task = {
            "title": "Facesheets Needed (GG)",
            "assignments": {
                "aaaaaaaa-1111-2222-3333-444444444444": {"orderHint": "8"},
                "bbbbbbbb-5555-6666-7777-888888888888": {"orderHint": "9"},
            },
        }
        assert sorted(_task_assignee_ids(task)) == [
            "aaaaaaaa-1111-2222-3333-444444444444",
            "bbbbbbbb-5555-6666-7777-888888888888",
        ]

    def test_blank_user_id_is_ignored(self):
        assert _task_assignee_ids({"assignments": {"": {}}}) == []


class TestSummaryWorkbook:
    def _write(self, tmp_path: Path, payload: dict) -> Path:
        out = tmp_path / "Download_Summary_HTTP_test.xlsx"
        _write_summary({"Balboa Nursing and Rehab": payload}, [], out, "2026-08-24 18:00")
        return out

    def _balboa_payload(self) -> dict:
        """The real Balboa plan: 2 unassigned with files, 2 assigned."""
        return {
            "original": [Path("a.pdf"), Path("b.pdf")],
            "tasks_total": 4,
            "tasks_with_attachments": 2,
            "tasks_with_downloads": 2,
            "tasks_skipped_no_attachment": 0,
            "tasks_skipped_assigned": 2,
            "status_changed": 2,
            "task_rows": [
                {"Facility Name": "Balboa Nursing and Rehab", "Task Name": "8.24.26",
                 "Assigned To": "", "Attachments": 1, "Downloaded": "Yes",
                 "Reason": "Downloaded 1/1 attachment(s)"},
                {"Facility Name": "Balboa Nursing and Rehab", "Task Name": "8.21.26",
                 "Assigned To": "", "Attachments": 1, "Downloaded": "Yes",
                 "Reason": "Downloaded 1/1 attachment(s)"},
                {"Facility Name": "Balboa Nursing and Rehab",
                 "Task Name": "Facesheets Needed (GG)", "Assigned To": "A S",
                 "Attachments": "", "Downloaded": "No",
                 "Reason": "Skipped — assigned to A S"},
                {"Facility Name": "Balboa Nursing and Rehab",
                 "Task Name": "Facesheets Needed (GG)", "Assigned To": "D M",
                 "Attachments": "", "Downloaded": "No",
                 "Reason": "Skipped — assigned to D M"},
            ],
        }

    def test_download_sheet_reports_assigned_skips(self, tmp_path):
        out = self._write(tmp_path, self._balboa_payload())
        df = pd.read_excel(out, sheet_name="Download")
        assert df.loc[0, "Tasks Skipped (Assigned)"] == 2
        assert df.loc[0, "Files Downloaded"] == 2
        assert df.loc[0, "Status"] == "Success"

    def test_tasks_sheet_has_a_yes_no_row_per_task(self, tmp_path):
        out = self._write(tmp_path, self._balboa_payload())
        df = pd.read_excel(out, sheet_name="Tasks")
        assert list(df.columns) == [
            "Facility Name", "Task Name", "Assigned To",
            "Attachments", "Downloaded", "Reason",
        ]
        assert list(df["Downloaded"]) == ["Yes", "Yes", "No", "No"]
        facesheets = df[df["Task Name"] == "Facesheets Needed (GG)"]
        assert len(facesheets) == 2
        assert all(facesheets["Downloaded"] == "No")
        assert all("assigned to" in r for r in facesheets["Reason"])

    def test_facility_whose_tasks_are_all_assigned(self, tmp_path):
        out = self._write(tmp_path, {
            "original": [],
            "tasks_total": 3,
            "tasks_with_attachments": 0,
            "tasks_with_downloads": 0,
            "tasks_skipped_no_attachment": 0,
            "tasks_skipped_assigned": 3,
            "status_changed": 0,
            "task_rows": [],
        })
        df = pd.read_excel(out, sheet_name="Download")
        assert df.loc[0, "Status"] == "All assigned — skipped"

    def test_tasks_sheet_exists_even_with_no_task_rows(self, tmp_path):
        out = self._write(tmp_path, {
            "original": [], "tasks_total": 0, "tasks_with_attachments": 0,
            "tasks_with_downloads": 0, "tasks_skipped_no_attachment": 0,
            "tasks_skipped_assigned": 0, "status_changed": 0, "task_rows": [],
        })
        df = pd.read_excel(out, sheet_name="Tasks")
        assert df.empty
        assert "Downloaded" in df.columns