"""The second scroll, read (bishe'arecha §IV): citations found as written,
resolved against the snapshot, and given to the anchoring as sources."""
import os
from pathlib import Path

import pytest

REPO = Path(__file__).resolve().parents[2]
os.environ.setdefault("MESORAH_MOUNT_POINT", str(REPO / "mesorah"))

from korban_processor import mesorah  # noqa: E402
from korban_processor.bedikah import examine  # noqa: E402

needs_scroll = pytest.mark.skipif(not mesorah.available(), reason="mesorah snapshot not built at MESORAH_MOUNT_POINT")


@needs_scroll
def test_citations_are_found_as_written_in_their_several_forms():
    text = ("Rashi on Devarim 6:5 reads the verse one way; Ramban to Deut. 6:5 another. Onkelos Bereishit 1:1 renders it. "
            "Mishnah Berakhot 1:1 opens with the evening Shema; Berakhot 2a asks why. Bereshit Rabbah 1:1 begins with wisdom. "
            "Sifrei Devarim 32 comments. Bavli Shabbat 31a has Hillel.")
    refs = {r.slug: r for r in mesorah.find_mesorah_references(text)}
    assert refs["rashi_on_devarim"].address == (6, 5)
    assert refs["ramban_on_devarim"].address == (6, 5)
    assert refs["onkelos_bereishit"].address == (1, 1)
    assert refs["mishnah_berakhot"].address == (1, 1)
    assert refs["bavli_berakhot"].address == (3,)  # 2a → daf index 3
    assert refs["bavli_shabbat"].address == (61,)  # 31a
    assert refs["bereshit_rabbah"].address == (1, 1)
    assert refs["sifrei_devarim"].address == (32,)
    assert refs["rashi_on_devarim"].as_written == "Rashi on Devarim 6:5"
    [t] = mesorah.find_mesorah_references("Midrash Tanchuma, Bereshit 1 opens the same way.")
    assert t.slug == "midrash_tanchuma" and t.address == ("Bereshit", 1) and t.ref_id == "midrash_tanchuma_bereshit_1"


@needs_scroll
def test_complex_works_resolve_through_their_unnamed_node_and_tanchuma_through_its_parashah():
    assert mesorah.resolve("ramban_on_bereishit", (1, 1))[0]
    assert mesorah.resolve("ibn_ezra_on_bereishit", (1, 1))[0]
    assert mesorah.resolve("sforno_on_bereishit", (1, 1))[0]
    assert mesorah.resolve("midrash_tanchuma", ("Bereshit", 1))[0]
    assert not mesorah.resolve("midrash_tanchuma", ("Nowhere", 1))[0]


@needs_scroll
def test_a_citation_the_scroll_has_resolves_to_text_and_one_it_lacks_does_not():
    exists, texts = mesorah.resolve("rashi_on_devarim", (6, 5))
    assert exists and "he" in texts and len(texts["he"]) > 20
    assert "<" not in texts["he"]  # tags stripped
    exists, texts = mesorah.resolve("rashi_on_devarim", (99, 1))
    assert not exists and texts == {}
    exists, _ = mesorah.resolve("bavli_berakhot", (3,))
    assert exists


@needs_scroll
def test_the_examination_lists_the_citations_and_anchors_a_claim_in_the_cited_passage():
    he, _ = mesorah.resolve("rashi_on_bereishit", (1, 1))[1].get("he", ""), None
    # Quote six consecutive words of Rashi on Bereishit 1:1 in the output: the claim must anchor in the passage.
    words = he.split()
    quote = " ".join(words[2:9])
    out = f"Rashi on Bereishit 1:1 says: {quote}. This suggests the Torah opens with a question about where it should begin."
    ex = examine(out, "claude", "")
    refs = [r for r in ex.mesorah_references if r["work"] == "rashi_on_bereishit"]
    assert refs and refs[0]["found"] and refs[0]["address"] == [1, 1] and "he" in refs[0]["languages"]
    anchored = [a.source for c in ex.claims for a in c.anchors]
    assert "mesorah:rashi_on_bereishit_1_1" in anchored


@needs_scroll
def test_a_citation_to_nothing_is_reported_not_invented():
    ex = examine("Rashi on Devarim 99:1 explains this, which suggests the matter is settled.", "gpt", "")
    assert ex.mesorah_references == [{"as_written": "Rashi on Devarim 99:1", "ref": "rashi_on_devarim_99_1", "work": "rashi_on_devarim", "address": [99, 1], "found": False, "languages": []}]
    assert not any(a.source.startswith("mesorah:") for c in ex.claims for a in c.anchors)


def test_without_the_scroll_nothing_is_found_and_nothing_breaks(monkeypatch):
    monkeypatch.setattr(mesorah, "MOUNT", "/nonexistent/mesorah")
    mesorah._index.cache_clear()
    mesorah._work.cache_clear()
    try:
        assert mesorah.find_mesorah_references("Rashi on Devarim 6:5 says so.") == []
        assert mesorah.read("Berakhot 2a") == []
    finally:
        mesorah._index.cache_clear()
        mesorah._work.cache_clear()