"""Tests for the 8 rule-based validation checks."""
import pytest

from app.validation.rules import (
    check_bloom_verbs,
    check_cultural_flags,
    check_curriculum_alignment,
    check_format_compliance,
    check_language_detection,
    check_length,
    check_no_explicit_content,
    check_no_hallucinated_dates,
    run_all_rules,
)


# ── length_check ───────────────────────────────────────────────────────────────

def test_length_pass():
    content = "x" * 2000
    result = check_length(content, max_tokens=1024)
    assert result.passed


def test_length_too_short():
    result = check_length("short", max_tokens=1024)
    assert not result.passed
    assert "too short" in result.message


def test_length_too_long():
    content = "x" * 100_000
    result = check_length(content, max_tokens=512)
    assert not result.passed
    assert "too long" in result.message


# ── bloom_verb_presence ────────────────────────────────────────────────────────

def test_bloom_verbs_found():
    content = "Students will explain the water cycle and describe precipitation."
    result = check_bloom_verbs(content, "UNDERSTAND")
    assert result.passed


def test_bloom_verbs_missing():
    content = "The water falls from the sky onto the ground."
    result = check_bloom_verbs(content, "CREATE")
    assert not result.passed


def test_bloom_verbs_unknown_level():
    result = check_bloom_verbs("anything", "BOGUS_LEVEL")
    assert result.passed  # should not crash; skipped


# ── cultural_flag_check ────────────────────────────────────────────────────────

def test_cultural_flags_local_names_pass():
    content = "Emeka and Ngozi went to Balogun Market to buy books for school."
    result = check_cultural_flags(content, use_local_names=True)
    assert result.passed


def test_cultural_flags_western_names_fail():
    content = "John and Mary and Peter and James and Michael went to school today."
    result = check_cultural_flags(content, use_local_names=True)
    assert not result.passed


def test_cultural_flags_not_required():
    content = "John and Mary went to school."
    result = check_cultural_flags(content, use_local_names=False)
    assert result.passed


# ── format_compliance ──────────────────────────────────────────────────────────

def test_format_lesson_plan_pass():
    content = "Objective: Learn fractions.\nActivity: Group work.\nAssessment: Quiz."
    result = check_format_compliance(content, "LESSON_PLAN")
    assert result.passed


def test_format_lesson_plan_fail():
    content = "This is just some random text without structure."
    result = check_format_compliance(content, "LESSON_PLAN")
    assert not result.passed


def test_format_quiz_pass():
    content = "1. What is 2+2?\n2. What is 3×3?\n3. What is 4-1?"
    result = check_format_compliance(content, "QUIZ", num_questions=3)
    assert result.passed


# ── no_hallucinated_dates ─────────────────────────────────────────────────────

def test_no_bad_dates_pass():
    content = "The curriculum was designed in 2019 and updated in 2023."
    result = check_no_hallucinated_dates(content)
    assert result.passed


def test_bad_date_flagged():
    content = "This event happened in 2099 and was referenced in 1750."
    result = check_no_hallucinated_dates(content)
    assert not result.passed


# ── no_explicit_content ────────────────────────────────────────────────────────

def test_clean_content_passes():
    content = "Students learn about the human reproductive system in biology class."
    result = check_no_explicit_content(content)
    assert result.passed


def test_explicit_content_hard_fail():
    content = "This lesson contains fuck and other profanity."
    result = check_no_explicit_content(content)
    assert not result.passed
    assert result.is_hard_fail


# ── curriculum_alignment ───────────────────────────────────────────────────────

def test_curriculum_alignment_pass():
    content = (
        "Week 1 Objective: Students will identify key learning activities. "
        "Assessment includes a quiz. Topic: Algebra."
    )
    result = check_curriculum_alignment(content, "NERDC")
    assert result.passed


def test_curriculum_alignment_fail():
    content = "Once upon a time there was a beautiful forest with many animals."
    result = check_curriculum_alignment(content, "NERDC")
    assert not result.passed


# ── run_all_rules ──────────────────────────────────────────────────────────────

def test_run_all_rules_passing_content():
    content = (
        "Week 1 Objective: Students will explain the concept of photosynthesis. "
        "Activity: Group discussion with Emeka and Ngozi. "
        "Assessment: Short quiz on key terms. Topic: Photosynthesis. "
        "Learning resources include textbooks. "
        + "x" * 1000  # ensure length check passes
    )
    report = run_all_rules(
        content,
        max_tokens=512,
        expected_language="en",
        bloom_level="UNDERSTAND",
        use_local_names=True,
        content_type="LESSON_PLAN",
        curriculum_board="NERDC",
    )
    assert report.all_passed or len(report.failed) <= 2  # most rules should pass


def test_run_all_rules_hard_fail():
    content = "fuck " * 50
    report = run_all_rules(content, max_tokens=512)
    assert report.has_hard_fail