"""
Tests for shechitah — terminate raw form.

BUILD_KORBAN.md Verification §1:
Feed it a Claude API response with heavy preamble, markdown, hedging,
and self-reference. Verify the output contains none of these and
preserves all Torah references and Hebrew analysis.

Architecture §3.5: The shechitah must be swift and complete.
A nick in the blade renders the shechitah invalid.
"""

import pytest

from korban_processor.korban import Korban, OfferingType, Provenance
from korban_processor.shechitah import (
    shechitah,
    strip_preamble,
    strip_self_reference,
    strip_hedging,
    strip_markdown,
    strip_closing,
    clean_whitespace,
)
from test.fixtures import CLAUDE_HEAVY_PREAMBLE_RESPONSE, CLAUDE_EMPTY_OFFERING


def make_korban(content: str, prov: Provenance = Provenance.CLAUDE) -> Korban:
    return Korban(
        raw_content=content,
        provenance=prov,
        offering_type=OfferingType.OLAH,
        source_query="test query",
    )


class TestShechitahStripsAssistantVoice:
    """BUILD_KORBAN verification §1: strips preamble, markdown, hedging, self-reference."""

    def test_strips_great_question_preamble(self):
        content = "Great question! I'd be happy to help you. The root ר-א-ש means beginning."
        result = shechitah(make_korban(content))
        assert "Great question" not in result
        assert "I'd be happy" not in result

    def test_strips_sure_preamble(self):
        content = "Sure! I can help with that. Genesis 1:1 begins with bereishit."
        result = shechitah(make_korban(content))
        assert "Sure!" not in result
        assert "Genesis 1:1" in result

    def test_strips_certainly_preamble(self):
        content = "Certainly! Here is a breakdown: The word בְּרֵאשִׁית derives from ר-א-ש."
        result = shechitah(make_korban(content))
        assert "Certainly" not in result

    def test_strips_self_reference_as_ai(self):
        # Self-reference and Torah content are in separate sentences.
        # "As an AI language model, my knowledge has limits." is stripped.
        # "Genesis 1:1 begins the Torah." is preserved in the following sentence.
        content = "As an AI language model, my knowledge has limits. Genesis 1:1 begins the Torah."
        result = shechitah(make_korban(content))
        assert "As an AI" not in result
        assert "language model" not in result
        assert "Genesis 1:1" in result

    def test_strips_hedging_worth_noting(self):
        content = "The root ר-א-ש means head. It's worth noting that interpretations vary."
        result = shechitah(make_korban(content))
        assert "worth noting" not in result
        assert "ר-א-ש" in result

    def test_strips_hedging_important_to_note(self):
        content = "Bereishit 1:1 opens Torah. It is important to note that Rashi comments."
        result = shechitah(make_korban(content))
        assert "important to note" not in result
        assert "Bereishit 1:1" in result

    def test_strips_closing_let_me_know(self):
        content = "The root ר-א-ש indicates beginning.\n\nLet me know if you have more questions!"
        result = shechitah(make_korban(content))
        assert "Let me know" not in result
        assert "ר-א-ש" in result

    def test_strips_closing_feel_free(self):
        content = "Genesis 1:1 establishes divine creation.\n\nFeel free to ask more!"
        result = shechitah(make_korban(content))
        assert "Feel free" not in result
        assert "Genesis 1:1" in result


class TestShechitahStripsMarkdown:
    def test_strips_bold_markers(self):
        result = strip_markdown("**The root** ר-א-ש means beginning.")
        assert "**" not in result
        assert "The root" in result
        assert "ר-א-ש" in result

    def test_strips_italic_markers(self):
        result = strip_markdown("The word *bereishit* comes from ר-א-ש.")
        assert "*" not in result
        assert "bereishit" in result

    def test_strips_header_markers(self):
        result = strip_markdown("## Analysis of Bereishit 1:1\n\nThe root is ר-א-ש.")
        assert "##" not in result
        assert "Analysis of Bereishit 1:1" in result

    def test_strips_bullet_markers(self):
        result = strip_markdown("- The root ר-א-ש means head\n- Genesis 1:1 opens Torah")
        assert result.lstrip().startswith("The root") or "The root" in result
        assert "ר-א-ש" in result

    def test_strips_numbered_list_markers(self):
        result = strip_markdown("1. Genesis 1:1\n2. Exodus 3:14")
        assert "1." not in result
        assert "Genesis 1:1" in result
        assert "Exodus 3:14" in result

    def test_strips_code_blocks(self):
        result = strip_markdown("The root is ר-א-ש.\n```\ncode block\n```\nMore text.")
        assert "```" not in result
        assert "code block" not in result
        assert "ר-א-ש" in result

    def test_strips_inline_code_keeps_text(self):
        result = strip_markdown("The function `bereishit()` relates to ר-א-ש.")
        assert "`" not in result
        assert "bereishit()" in result


class TestShechitahPreservesTorah:
    """BUILD_KORBAN verification §1: preserves Torah references and Hebrew analysis."""

    def test_preserves_torah_reference_bereishit(self):
        korban = make_korban(CLAUDE_HEAVY_PREAMBLE_RESPONSE)
        result = shechitah(korban)
        assert "Genesis 1:1" in result or "Bereishit 1:1" in result

    def test_preserves_hebrew_text(self):
        korban = make_korban(CLAUDE_HEAVY_PREAMBLE_RESPONSE)
        result = shechitah(korban)
        assert "בְּרֵאשִׁית" in result

    def test_preserves_root_notation(self):
        korban = make_korban(CLAUDE_HEAVY_PREAMBLE_RESPONSE)
        result = shechitah(korban)
        assert "ר-א-ש" in result

    def test_preserves_rashi_reference(self):
        korban = make_korban(CLAUDE_HEAVY_PREAMBLE_RESPONSE)
        result = shechitah(korban)
        assert "Rashi" in result

    def test_full_shechitah_strips_all_voice(self):
        """BUILD_KORBAN verification §1: comprehensive strip test."""
        korban = make_korban(CLAUDE_HEAVY_PREAMBLE_RESPONSE)
        result = shechitah(korban)

        # Must not contain assistant voice
        assert "Great question" not in result
        assert "I'd be happy" not in result
        assert "As an AI" not in result
        assert "language model" not in result
        assert "worth noting" not in result
        assert "important to keep in mind" not in result
        assert "Let me know" not in result
        assert "I hope this helps" not in result

        # Must preserve vital content
        assert "בְּרֵאשִׁית" in result
        assert "ר-א-ש" in result
        assert "Rashi" in result


class TestShechitahStateless:
    """Kiyyor principle: each call is independent, no state between calls."""

    def test_two_calls_identical_input_identical_output(self):
        korban = make_korban(CLAUDE_HEAVY_PREAMBLE_RESPONSE)
        result1 = shechitah(korban)
        result2 = shechitah(korban)
        assert result1 == result2

    def test_second_call_unaffected_by_first(self):
        k1 = make_korban("Great question! The root ר-א-ש means head. Genesis 1:1.")
        k2 = make_korban("Sure! I can explain. Exodus 3:14 reveals Ehyeh asher Ehyeh.")
        result1 = shechitah(k1)
        result2 = shechitah(k2)
        # Each result should only contain content from its own korban
        assert "Exodus" not in result1
        assert "Genesis" not in result2