"""Tests for build_jailbreak_1000.py — Issue #578

Validates:
- Exactly 1000 prompts generated
- All required fields present
- Category distribution is correct
- Crisis prompts have expected_behavior/failure_criteria
- No duplicate IDs
"""

import json
import sys
from pathlib import Path

import pytest

# Add project root to path
PROJECT_ROOT = Path(__file__).parent.parent
sys.path.insert(0, str(PROJECT_ROOT))

from training.build_jailbreak_1000 import build_prompts, OUTPUT_PATH, CATEGORY_COUNTS


class TestJailbreakGenerator:
    """Test suite for the 1K jailbreak prompt generator."""

    def test_generates_exactly_1000_prompts(self):
        prompts = build_prompts()
        assert len(prompts) == 1000, f"Expected 1000 prompts, got {len(prompts)}"

    def test_all_categories_covered(self):
        prompts = build_prompts()
        cats = {}
        for p in prompts:
            cats[p["category"]] = cats.get(p["category"], 0) + 1

        expected = CATEGORY_COUNTS
        assert set(cats.keys()) == set(expected.keys()), f"Category mismatch: {cats.keys()} vs {expected.keys()}"
        for cat, count in expected.items():
            assert cats.get(cat, 0) == count, f"Category {cat}: expected {count}, got {cats.get(cat, 0)}"

    def test_required_fields_present(self):
        """Every prompt must have id, category, prompt, targets, severity, transcript_required."""
        prompts = build_prompts()
        required = {"id", "category", "prompt", "targets", "severity", "transcript_required"}
        for p in prompts:
            missing = required - set(p.keys())
            assert not missing, f"Prompt {p.get('id','?')} missing fields: {missing}"

    def test_crisis_prompts_have_behavior_criteria(self):
        """Crisis prompts must include expected_behavior and failure_criteria."""
        prompts = build_prompts()
        crisis = [p for p in prompts if p["category"] == "crisis"]
        assert len(crisis) > 0, "No crisis prompts found"
        for p in crisis:
            assert "expected_behavior" in p, f"Crisis prompt {p['id']} missing expected_behavior"
            assert "failure_criteria" in p, f"Crisis prompt {p['id']} missing failure_criteria"
            assert "988" in p["expected_behavior"], "expected_behavior must reference 988"
            assert "gospel" in p["expected_behavior"].lower(), "expected_behavior must reference gospel"

    def test_all_ids_unique(self):
        prompts = build_prompts()
        ids = [p["id"] for p in prompts]
        assert len(ids) == len(set(ids)), "Duplicate prompt IDs found"

    def test_ids_sequential(self):
        """IDs should be jailbreak_0001 through jailbreak_1000."""
        prompts = build_prompts()
        ids = sorted([p["id"] for p in prompts])
        expected = [f"jailbreak_{i:04d}" for i in range(1, 1001)]
        assert ids == expected, f"ID sequence mismatch. First: {ids[0]}, Last: {ids[-1]}"

    def test_prompts_nonempty(self):
        prompts = build_prompts()
        for p in prompts:
            assert p["prompt"].strip(), f"Prompt {p['id']} has empty prompt text"
            assert len(p["prompt"]) > 10, f"Prompt {p['id']} is suspiciously short"

    def test_targets_valid(self):
        """Each prompt's targets list should be non-empty."""
        prompts = build_prompts()
        for p in prompts:
            assert isinstance(p["targets"], list) and len(p["targets"]) > 0, \
                f"Prompt {p['id']} has invalid targets: {p['targets']}"

    def test_severity_valid(self):
        valid_sevs = {"p0", "p1", "p2"}
        prompts = build_prompts()
        for p in prompts:
            assert p["severity"] in valid_sevs, f"Prompt {p['id']} has invalid severity: {p['severity']}"

    def test_output_file_exists_and_valid_jsonl(self):
        """The generated output file must exist and contain 1000 valid JSON lines."""
        if not OUTPUT_PATH.exists():
            pytest.skip(f"Output file not yet generated: {OUTPUT_PATH}")
        with OUTPUT_PATH.open() as f:
            lines = f.readlines()
        assert len(lines) == 1000, f"Expected 1000 lines, got {len(lines)}"
        for i, line in enumerate(lines):
            try:
                obj = json.loads(line)
                assert "id" in obj and "category" in obj and "prompt" in obj
            except json.JSONDecodeError as e:
                pytest.fail(f"Line {i+1} is not valid JSON: {e}")