from datetime import date
from pathlib import Path
from journal_bot.process import process_once
from journal_bot.queue import Queue, QueueItem
from journal_bot.processor_protocol import ProcessorOutput
from journal_bot.vault_writer import VaultWriter


class FakeProcessor:
    def __init__(self, output: ProcessorOutput | None = None, healthy=True, raises=None):
        self._output = output
        self._healthy = healthy
        self._raises = raises

    def health_check(self):
        return self._healthy

    def process(self, payload):
        if self._raises:
            raise self._raises
        return self._output


def make_item(update_id=1, text="Hallo"):
    return QueueItem(
        update_id=update_id,
        received_at="2026-06-14T14:32:17+02:00",
        type="text",
        text=text,
    )


def test_process_writes_to_vault_and_completes(tmp_path):
    vault = tmp_path / "vault"
    (vault / "05 Daily Notes").mkdir(parents=True)
    queue = Queue(tmp_path / "q")
    queue.enqueue(make_item(1))
    processor = FakeProcessor(ProcessorOutput(
        target_date="2026-06-14",
        target_path="05 Daily Notes/2026-06-14.md",
        entry_markdown="## 14:32\nHallo",
    ))
    writer = VaultWriter(vault)
    n = process_once(processor, queue, writer, vault_path=vault, today=date(2026, 6, 14))
    assert n == 1
    assert (tmp_path / "q" / "done" / "1.json").exists()
    assert (vault / "05 Daily Notes" / "2026-06-14.md").exists()


def test_process_skips_when_unhealthy(tmp_path):
    vault = tmp_path / "vault"
    (vault / "05 Daily Notes").mkdir(parents=True)
    queue = Queue(tmp_path / "q")
    queue.enqueue(make_item(1))
    processor = FakeProcessor(healthy=False)
    writer = VaultWriter(vault)
    n = process_once(processor, queue, writer, vault_path=vault, today=date(2026, 6, 14))
    assert n == 0
    assert (tmp_path / "q" / "pending" / "1.json").exists()


def test_process_fails_item_on_error(tmp_path):
    vault = tmp_path / "vault"
    (vault / "05 Daily Notes").mkdir(parents=True)
    queue = Queue(tmp_path / "q")
    queue.enqueue(make_item(1))
    processor = FakeProcessor(raises=RuntimeError("boom"))
    writer = VaultWriter(vault)
    process_once(processor, queue, writer, vault_path=vault, today=date(2026, 6, 14))
    assert (tmp_path / "q" / "pending" / "1.json").exists()
    import json
    data = json.loads((tmp_path / "q" / "pending" / "1.json").read_text(encoding="utf-8"))
    assert data["attempts"] == 1