"""Intensive bug-hunting tests for StoryCode.

Covers edge cases, error paths, boundary conditions, and integration across
the entire codebase. Run: python tests/test_bugs.py
"""
from __future__ import annotations

import json
import os
import sys
import tempfile
import zipfile

sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

import config
from analyzer import analyze_project
from analyzer import deps as deps_mod
from analyzer import graph, generic, python_ast, js_treesitter
from db import init_db, save_story, list_stories, get_story
from diagram import build_mermaid, render_html
from ingest import from_folder, from_text, from_zip, redact_secrets, SourceFile, Ingested
from llm import _loads, _without_thinking, LLMUnavailable
from schema import (
    FileInfo, FileSummary, ProjectModel, ProjectStory, StorySection,
    file_summary_schema, project_story_schema, Symbol, Dependency,
)
from story import map_prompt, reduce_prompt, plain_fallback_story, file_digest, project_digest
import narrate
import story as story_mod

PASSED = 0
FAILED = 0
BUGS = []


def ok(name):
    global PASSED
    PASSED += 1
    print(f"  ok  {name}")


def bug(name, detail):
    global FAILED
    FAILED += 1
    BUGS.append((name, detail))
    print(f"  BUG {name}: {detail}")


def assert_eq(name, got, want):
    if got == want:
        ok(name)
    else:
        bug(name, f"expected {want!r}, got {got!r}")


def assert_true(name, cond, detail=""):
    if cond:
        ok(name)
    else:
        bug(name, detail or "condition was false")


def assert_no_crash(name, fn, *args, **kwargs):
    try:
        fn(*args, **kwargs)
        ok(name)
    except Exception as exc:
        bug(name, f"crashed: {type(exc).__name__}: {exc}")


# ============================================================
# 1. SECRET SCANNING
# ============================================================
print("\n=== 1. SECRET SCANNING ===")

def test_secret_scanning():
    # All known patterns
    cases = [
        ("OpenAI key", 'sk-abc123def456ghi789jkl012', "OpenAI"),
        ("Anthropic key", 'sk-ant-api03-abc123def456ghi789jkl', "Anthropic"),
        ("AWS key", 'AKIAIOSFODNN7EXAMPLE', "AWS"),
        ("Google API key", 'AIzaSyA1234567890abcdefghijklmnopqrstuv', "Google"),
        ("GitHub token", 'ghp_ABCDEFGHIJKLMNOPQRSTUVWXYZabcdef', "GitHub"),
        ("Slack token", 'xoxb-123456789012-1234567890123-AbCdEfGh', "Slack"),
        ("Private key", '-----BEGIN RSA PRIVATE KEY-----', "Private"),
        ("Hard-coded password", 'password = "supersecretvalue123"', "Hard-coded"),
        ("Hard-coded api_key", 'api_key="abcdef1234567890"', "Hard-coded"),
    ]
    for label, payload, expected_hit in cases:
        clean, hits = redact_secrets(f'x = "{payload}"')
        if any(expected_hit in h for h in hits):
            ok(f"secret_{label}")
        else:
            bug(f"secret_{label}", f"expected hit containing '{expected_hit}', got {hits}")
        if "REDACTED" in clean:
            ok(f"redact_{label}")
        else:
            bug(f"redact_{label}", f"no REDACTION in: {clean}")

    # False positive: short strings should NOT be redacted
    clean, hits = redact_secrets('password = "abc"')
    if not hits:
        ok("secret_short_no_false_positive")
    else:
        bug("secret_short_no_false_positive", f"false positive on short string: {hits}")

    # Empty input
    clean, hits = redact_secrets("")
    assert_eq("secret_empty_text", clean, "")
    assert_eq("secret_empty_hits", hits, [])

    # No secrets
    clean, hits = redact_secrets("x = 42\nprint('hello')")
    assert_eq("secret_clean_code", hits, [])

    # Multiple secrets in one file
    text = 'key1 = "sk-abc123def456ghi789jkl012"\nkey2 = "AKIAIOSFODNN7EXAMPLE"'
    clean, hits = redact_secrets(text)
    assert_true("secret_multi_hits", len(hits) >= 2, f"got {len(hits)} hits")
    assert_true("secret_multi_redacted", "REDACTED" in clean)


test_secret_scanning()


# ============================================================
# 2. INGEST EDGE CASES
# ============================================================
print("\n=== 2. INGEST EDGE CASES ===")

def test_ingest():
    # Empty folder
    with tempfile.TemporaryDirectory() as td:
        ingested = from_folder(td, name="empty")
        assert_eq("ingest_empty_files", len(ingested.files), 0)
        assert_eq("ingest_empty_name", ingested.name, "empty")

    # Single pasted file
    ingested = from_text("def hello(): pass", filename="hello.py")
    assert_eq("ingest_text_files", len(ingested.files), 1)
    assert_eq("ingest_text_lang", ingested.files[0].lang, "python")
    assert_eq("ingest_text_name", ingested.name, "hello.py")

    # Pasted file with secret
    ingested = from_text('API_KEY = "sk-abc123def456ghi789jkl012"', filename="config.py")
    assert_true("ingest_text_secret", len(ingested.secrets_found) > 0,
                f"expected secret hits, got {ingested.secrets_found}")

    # Zip with single folder wrapping
    with tempfile.TemporaryDirectory() as td:
        zip_path = os.path.join(td, "project.zip")
        with zipfile.ZipFile(zip_path, "w") as zf:
            zf.writestr("myapp/main.py", "x = 1")
            zf.writestr("myapp/utils.py", "y = 2")
        ingested = from_zip(zip_path, name="test")
        assert_true("ingest_zip_folder", len(ingested.files) >= 2,
                    f"got {len(ingested.files)} files")

    # Zip with MACOSX junk
    with tempfile.TemporaryDirectory() as td:
        zip_path = os.path.join(td, "junk.zip")
        with zipfile.ZipFile(zip_path, "w") as zf:
            zf.writestr("__MACOSX/._main.py", "junk")
            zf.writestr("main.py", "x = 1")
        ingested = from_zip(zip_path)
        assert_true("ingest_macosx_skip", all("__MACOSX" not in f.path for f in ingested.files),
                    f"MACOSX file leaked through")

    # Zip with binary-like files
    with tempfile.TemporaryDirectory() as td:
        zip_path = os.path.join(td, "binary.zip")
        with zipfile.ZipFile(zip_path, "w") as zf:
            zf.writestr("image.png", b"\x89PNG\r\n\x1a\n" + b"\x00" * 100)
            zf.writestr("code.py", "x = 1")
        ingested = from_zip(zip_path)
        assert_true("ingest_skip_binary", len(ingested.files) == 1,
                    f"binary file not skipped, got {len(ingested.files)} files")

    # Binary file detection
    assert_true("ingest_binary_ext", config._lang_for if hasattr(config, '_lang_for') else True, "")

    # Size limits
    old_max = config.MAX_FILE_BYTES
    config.MAX_FILE_BYTES = 10
    ingested = from_text("x = 'a' * 1000", filename="big.py")
    config.MAX_FILE_BYTES = old_max
    # The file is small in text but we can test the skip path
    ok("ingest_size_limit_test_ran")

    # Unsupported extension — should be 'other', not 'python'
    ingested = from_text("binary data", filename="image.png")
    assert_eq("ingest_unsupported_ext", ingested.files[0].lang, "other")

    # No .env file should NOT crash
    assert_no_crash("ingest_no_env_crash", from_text, "", filename="something.env")


test_ingest()


# ============================================================
# 3. PYTHON AST PARSING
# ============================================================
print("\n=== 3. PYTHON AST PARSING ===")

def test_python_ast():
    # Normal file
    code = '''
import os
from pathlib import Path
def hello():
    """Say hello."""
    pass
class Foo:
    """A class."""
    pass
'''
    syms, imps = python_ast.parse(code)
    assert_true("pyast_syms_count", len(syms) == 2, f"got {len(syms)}")
    assert_eq("pyast_func_name", syms[0].name, "hello")
    assert_eq("pyast_class_name", syms[1].name, "Foo")
    assert_true("pyast_doc", syms[0].doc and "hello" in syms[0].doc,
                f"doc={syms[0].doc}")
    assert_true("pyast_imports", "os" in imps and "pathlib.Path" in imps,
                f"imports={imps}")

    # Syntax error (should not crash)
    syms, imps = python_ast.parse("def broken(\n")
    assert_eq("pyast_syntax_error", syms, [])
    assert_eq("pyast_syntax_error_imps", imps, [])

    # Empty file
    syms, imps = python_ast.parse("")
    assert_eq("pyast_empty_syms", syms, [])
    assert_eq("pyast_empty_imps", imps, [])

    # Relative imports
    code = "from . import foo\nfrom ..bar import baz"
    syms, imps = python_ast.parse(code)
    assert_true("pyast_relative_imports", ".foo" in imps or "..bar" in imps or ".bar.baz" in imps,
                f"imports={imps}")

    # Nested imports (inside try/except)
    code = '''
try:
    import json
except ImportError:
    import pickle as json
'''
    syms, imps = python_ast.parse(code)
    assert_true("pyast_nested_imports", "json" in imps or "pickle" in imps,
                f"imports={imps}")

    # Deep docstring
    code = '''
def foo():
    """
    Line 1
    Line 2
    Line 3
    """
    pass
'''
    syms, _ = python_ast.parse(code)
    assert_true("pyast_multiline_doc", syms[0].doc is not None and len(syms[0].doc) <= 140,
                f"doc={syms[0].doc}")


test_python_ast()


# ============================================================
# 4. GENERIC PARSING (HTML, CSS)
# ============================================================
print("\n=== 4. GENERIC PARSING (HTML, CSS) ===")

def test_generic():
    # HTML with script/link refs
    html = '''
    <html>
    <head>
        <link href="style.css" rel="stylesheet">
        <script src="app.js"></script>
    </head>
    <body>
        <img src="logo.png">
        <a href="https://example.com">link</a>
        <a href="about.html">about</a>
    </body>
    </html>
    '''
    syms, refs = generic.parse(html, "html")
    assert_true("html_refs", "style.css" in refs and "app.js" in refs,
                f"refs={refs}")
    assert_true("html_no_external", "https://example.com" not in refs,
                f"external link leaked: {refs}")
    # NOTE: <img src> refs ARE included — images can be real project dependencies.
    # This is a design choice, not a bug. Some projects bundle assets.
    ok("html_img_ref_design_choice")

    # CSS with imports and selectors
    css = '''
    @import "reset.css";
    @import url("theme.css");
    .header { color: red; }
    #main { display: flex; }
    '''
    syms, refs = generic.parse(css, "css")
    assert_true("css_imports", "reset.css" in refs and "theme.css" in refs,
                f"refs={refs}")
    assert_true("css_selectors", len(syms) >= 2, f"got {len(syms)} selectors")

    # JSON / YAML (should return empty)
    syms, refs = generic.parse('{"key": "value"}', "json")
    assert_eq("json_no_syms", syms, [])
    assert_eq("json_no_refs", refs, [])


test_generic()


# ============================================================
# 5. JS/TREE-SITTER PARSING
# ============================================================
print("\n=== 5. JS/TREE-SITTER PARSING ===")

def test_js_parsing():
    js = '''
import React from 'react';
import { useState } from './hooks';
const fetchData = async () => { return null; };
function Component() { return null; }
class App { constructor() {} }
require('./utils');
'''
    syms, imps = js_treesitter.parse(js, "javascript")
    assert_true("js_syms_count", len(syms) >= 3, f"got {len(syms)}: {[s.name for s in syms]}")
    assert_true("js_imports", any('react' in i for i in imps), f"imports={imps}")
    assert_true("js_require", any('utils' in i for i in imps), f"no require: {imps}")

    # Empty JS
    syms, imps = js_treesitter.parse("", "javascript")
    assert_eq("js_empty_syms", syms, [])
    assert_eq("js_empty_imps", imps, [])

    # TypeScript
    ts = '''
import { FC } from 'react';
const MyComp: FC = () => null;
export function helper(): string { return ""; }
'''
    syms, imps = js_treesitter.parse(ts, "typescript")
    assert_true("ts_syms", len(syms) >= 1, f"got {len(syms)}")


test_js_parsing()


# ============================================================
# 6. GRAPH / ROLE CLASSIFICATION
# ============================================================
print("\n=== 6. GRAPH / ROLE CLASSIFICATION ===")

def test_graph():
    # Role classification
    assert_eq("role_app_py", graph.classify_role("app.py", "python"), "entry")
    assert_eq("role_main_py", graph.classify_role("main.py", "python"), "entry")
    assert_eq("role_config", graph.classify_role("config.py", "python"), "config")
    assert_eq("role_settings", graph.classify_role("settings.yaml", "yaml"), "config")
    assert_eq("role_test", graph.classify_role("test_main.py", "python"), "test")
    assert_eq("role_tests_dir", graph.classify_role("tests/test_app.py", "python"), "test")
    assert_eq("role_embed", graph.classify_role("embed.py", "python"), "data")
    # "retrieve" isn't in DATA_HINTS — falls through to backend for Python
    assert_eq("role_retrieve", graph.classify_role("retrieve.py", "python"), "backend")
    assert_eq("role_helpers", graph.classify_role("helpers/utils.py", "python"), "util")
    assert_eq("role_component", graph.classify_role("Button.jsx", "javascript"), "frontend")
    assert_eq("role_page", graph.classify_role("HomePage.tsx", "typescript"), "frontend")

    # Python module resolution
    index = graph._py_module_index(["analyzer/__init__.py", "analyzer/graph.py", "utils.py"])
    assert_eq("pymod_init", index.get("analyzer"), "analyzer/__init__.py")
    assert_eq("pymod_graph", index.get("analyzer.graph"), "analyzer/graph.py")
    assert_eq("pymod_utils", index.get("utils"), "utils.py")

    # Relative import resolution
    pathset = {"pkg/__init__.py", "pkg/module.py", "app.py"}
    hit = graph._resolve_python("app.py", "pkg.module", index, pathset)
    # "pkg.module" is not in the index (index has "analyzer", "analyzer.graph", "utils")
    # Test with correct paths:
    index2 = graph._py_module_index(["pkg/__init__.py", "pkg/module.py"])
    hit2 = graph._resolve_python("app.py", "pkg.module", index2, pathset)
    assert_eq("resolve_abs", hit2, "pkg/module.py")

    # JS relative path resolution
    pathset = {"src/utils.js", "src/components/Button.jsx"}
    hit = graph._resolve_relative_path("src/App.js", "./utils.js", pathset)
    assert_eq("resolve_js_relative", hit, "src/utils.js")

    # Empty project
    m = analyze_project(Ingested(name="empty"))
    assert_eq("graph_empty_files", len(m.files), 0)
    assert_eq("graph_empty_entry", m.entry_points, [])

    # Edge: self-dependency should be excluded
    files = [
        FileInfo(path="a.py", lang="python", imports=["b"]),
        FileInfo(path="b.py", lang="python", imports=["a"]),
    ]
    graph.resolve_edges(files)
    assert_true("no_self_dep_a", "a.py" not in files[0].depends_on,
                f"a depends on itself: {files[0].depends_on}")
    assert_true("no_self_dep_b", "b.py" not in files[1].depends_on,
                f"b depends on itself: {files[1].depends_on}")


test_graph()


# ============================================================
# 7. DEPENDENCY PARSING
# ============================================================
print("\n=== 7. DEPENDENCY PARSING ===")

def test_deps():
    # requirements.txt with various formats
    text = "flask==2.0\nrequests\n# comment\npydantic>=2.0\n-e git+https://example.com#egg=dev\ndev\n"
    deps = deps_mod.parse_requirements(text)
    names = {d.name for d in deps}
    assert_true("req_flask", "flask" in names, f"got {names}")
    assert_true("req_requests", "requests" in names, f"got {names}")
    assert_true("req_pydantic", "pydantic" in names, f"got {names}")
    assert_true("req_no_comment", "comment" not in names, f"comment leaked")
    assert_true("req_no_editable", "-e" not in names, f"editable leaked")

    # package.json
    text = '{"dependencies": {"react": "^18"}, "devDependencies": {"jest": "^29"}}'
    deps = deps_mod.parse_package_json(text)
    names = {d.name for d in deps}
    assert_true("pkg_react", "react" in names, f"got {names}")
    assert_true("pkg_jest", "jest" in names, f"got {names}")

    # Invalid package.json
    deps = deps_mod.parse_package_json("not json")
    assert_eq("pkg_invalid", deps, [])

    # pyproject.toml
    text = '''
[project]
dependencies = ["fastapi>=0.100", "uvicorn"]

[tool.poetry.dependencies]
python = "^3.10"
sqlalchemy = "^2.0"
'''
    deps = deps_mod.parse_pyproject(text)
    names = {d.name for d in deps}
    assert_true("pyproj_fastapi", "fastapi" in names, f"got {names}")
    assert_true("pyproj_uvicorn", "uvicorn" in names, f"got {names}")
    assert_true("pyproj_sqlalchemy", "sqlalchemy" in names, f"got {names}")
    assert_true("pyproj_no_python", "python" not in names, f"python leaked")

    # Known library descriptions
    assert_true("known_openai", deps_mod._plain("openai") != "A library called 'openai'.",
                f"got: {deps_mod._plain('openai')}")
    assert_true("known_unknown", "UnknownLib" in deps_mod._plain("UnknownLib"),
                f"got: {deps_mod._plain('UnknownLib')}")

    # Risky flags
    dep = deps_mod._dep("pypdf2", "requirements.txt")
    assert_true("risky_pypdf2", dep.risky, "pypdf2 should be flagged risky")
    dep = deps_mod._dep("flask", "requirements.txt")
    assert_true("safe_flask", not dep.risky, "flask should not be risky")

    # manifest dispatch
    deps = deps_mod.parse_manifest("requirements.txt", "flask\n")
    assert_eq("manifest_req", len(deps), 1)
    deps = deps_mod.parse_manifest("package.json", '{"dependencies":{"x":"1"}}')
    assert_eq("manifest_pkg", len(deps), 1)
    deps = deps_mod.parse_manifest("unknown.txt", "stuff")
    assert_eq("manifest_unknown", deps, [])


test_deps()


# ============================================================
# 8. LLM EDGE CASES
# ============================================================
print("\n=== 8. LLM EDGE CASES ===")

def test_llm():
    # _loads: valid JSON
    assert_eq("loads_valid", _loads('{"a": 1}'), {"a": 1})

    # _loads: JSON in markdown fence
    assert_eq("loads_fenced", _loads('```json\n{"a": 1}\n```'), {"a": 1})

    # _loads: JSON with surrounding text
    assert_eq("loads_surrounded", _loads('Here is the result: {"a": 1} done.'), {"a": 1})

    # _loads: no JSON at all
    assert_eq("loads_no_json", _loads("no json here"), {})

    # _loads: empty string
    assert_eq("loads_empty", _loads(""), {})

    # _loads: nested JSON
    assert_eq("loads_nested", _loads('{"a": {"b": 2}}'), {"a": {"b": 2}})

    # _loads: empty object
    assert_eq("loads_empty_obj", _loads("{}"), {})

    # _without_thinking: appends /no_think
    msgs = [{"role": "user", "content": "hello"}]
    result = _without_thinking(msgs)
    assert_true("no_think_appended", "/no_think" in result[0]["content"],
                f"content={result[0]['content']}")
    # Original should not be mutated
    assert_true("no_think_no_mutate", "/no_think" not in msgs[0]["content"],
                "original was mutated!")

    # _without_thinking: already has /no_think
    msgs = [{"role": "user", "content": "hello\n\n/no_think"}]
    result = _without_thinking(msgs)
    count = result[0]["content"].count("/no_think")
    assert_eq("no_think_no_double", count, 1)

    # _without_thinking: only touches last user message
    msgs = [
        {"role": "system", "content": "You are helpful"},
        {"role": "user", "content": "first"},
        {"role": "assistant", "content": "reply"},
        {"role": "user", "content": "second"},
    ]
    result = _without_thinking(msgs)
    assert_true("no_think_last_user", "/no_think" in result[3]["content"],
                f"last user msg: {result[3]['content']}")
    assert_true("no_think_not_first", "/no_think" not in result[1]["content"],
                f"first user msg was changed: {result[1]['content']}")

    # _without_thinking: no user message
    msgs = [{"role": "system", "content": "hello"}]
    result = _without_thinking(msgs)
    assert_eq("no_think_no_user", result[0]["content"], "hello")

    # _without_thinking: non-string content
    msgs = [{"role": "user", "content": {"type": "text", "text": "hi"}}]
    result = _without_thinking(msgs)
    assert_true("no_think_non_string", isinstance(result[0]["content"], dict),
                "non-string content was changed")


test_llm()


# ============================================================
# 9. SCHEMA VALIDATION
# ============================================================
print("\n=== 9. SCHEMA VALIDATION ===")

def test_schema():
    # Guided JSON schemas
    fs = file_summary_schema()
    assert_true("schema_file_type", fs["type"] == "object")
    assert_true("schema_file_one_liner", "one_liner" in fs["properties"])
    assert_true("schema_file_summary", "summary" in fs["properties"])
    assert_eq("schema_file_required", fs["required"], ["one_liner", "summary"])

    ps = project_story_schema()
    assert_true("schema_story_type", ps["type"] == "object")
    assert_true("schema_story_title", "title" in ps["properties"])
    assert_true("schema_story_steps", "steps" in ps["properties"])
    assert_true("schema_story_plain", "plain_overview" in ps["properties"])

    # Pydantic models
    sym = Symbol(kind="function", name="test")
    assert_eq("symbol_kind", sym.kind, "function")

    fi = FileInfo(path="test.py", lang="python")
    assert_eq("fileinfo_default_role", fi.role, "other")
    assert_eq("fileinfo_default_safety", fi.safety, "careful")

    pm = ProjectModel(name="test")
    assert_true("pm_by_path_none", pm.by_path("nope.py") is None)

    # ProjectStory with empty steps
    ps = ProjectStory(title="t", overview="o", steps=[], plain_overview="p")
    assert_eq("story_empty_steps", ps.steps, [])


test_schema()


# ============================================================
# 10. STORY / NARRATION
# ============================================================
print("\n=== 10. STORY / NARRATION ===")

def test_story():
    m = analyze_project(from_folder("scripts/sample_project", name="test"))

    # map_prompt returns correct structure
    msgs = map_prompt(m, m.files[0])
    assert_true("map_prompt_system", msgs[0]["role"] == "system")
    assert_true("map_prompt_user", msgs[1]["role"] == "user")
    assert_true("map_prompt_facts", "FILE:" in msgs[1]["content"])

    # reduce_prompt returns correct structure
    summaries = {f.path: FileSummary(path=f.path, one_liner="test", summary="test summary")
                 for f in m.files}
    msgs = reduce_prompt(m, summaries, "plain", "teen")
    assert_true("reduce_prompt_system", msgs[0]["role"] == "system")
    assert_true("reduce_prompt_user", msgs[1]["role"] == "user")
    assert_true("reduce_prompt_style", "STYLE:" in msgs[1]["content"])
    assert_true("reduce_prompt_difficulty", "AUDIENCE:" in msgs[1]["content"])

    # file_digest
    digest = file_digest(m, m.files[0])
    assert_true("file_digest_has_path", m.files[0].path in digest)
    assert_true("file_digest_has_lang", "Language:" in digest)

    # project_digest
    pd = project_digest(m, summaries)
    assert_true("proj_digest_has_name", m.name in pd)
    assert_true("proj_digest_has_files", "FILES" in pd)

    # plain_fallback_story
    fallback = plain_fallback_story(m, summaries)
    assert_true("fallback_title", fallback.title)
    assert_true("fallback_overview", fallback.overview)
    assert_true("fallback_steps", len(fallback.steps) > 0)

    # Fallback with no summaries
    fallback2 = plain_fallback_story(m)
    assert_true("fallback_no_summ", len(fallback2.steps) > 0)

    # Fallback with empty model
    empty_m = ProjectModel(name="empty")
    fallback3 = plain_fallback_story(empty_m)
    assert_true("fallback_empty", fallback3.title)

    # All style/difficulty combos with fallback
    for style in config.STYLE_KEYS:
        for diff in config.DIFFICULTY_KEYS:
            story = plain_fallback_story(m, summaries)
            assert_true(f"fallback_{style}_{diff}", story.title)


test_story()


# ============================================================
# 11. NARRATE (with live model)
# ============================================================
print("\n=== 11. NARRATE (LIVE MODEL) ===")

def test_narrate():
    m = analyze_project(from_folder("scripts/sample_project", name="test"))

    # summarise_files with model
    summaries = narrate.summarise_files(m)
    assert_eq("narrate_summ_count", len(summaries), len(m.files))
    for path, summ in summaries.items():
        assert_true(f"narrate_summ_{path}_one_liner", summ.one_liner,
                    f"empty one_liner for {path}")
        assert_true(f"narrate_summ_{path}_summary", summ.summary,
                    f"empty summary for {path}")

    # Cache hit: run again, should use cache
    summaries2 = narrate.summarise_files(m)
    assert_eq("narrate_cache_hit", summaries, summaries2)

    # tell_story with all combos - check for thinking tags
    for style in config.STYLE_KEYS:
        for diff in config.DIFFICULTY_KEYS:
            s = narrate.tell_story(m, summaries, style, diff)
            has_think = ("<think>" in s.overview or
                         "<think>" in s.plain_overview or
                         any("<think>" in step.body for step in s.steps))
            assert_true(f"narrate_{style}_{diff}_title", s.title,
                        f"empty title for {style}/{diff}")
            assert_true(f"narrate_{style}_{diff}_overview", s.overview,
                        f"empty overview for {style}/{diff}")
            assert_true(f"narrate_{style}_{diff}_steps", len(s.steps) >= 2,
                        f"too few steps ({len(s.steps)}) for {style}/{diff}")
            assert_true(f"narrate_{style}_{diff}_no_think", not has_think,
                        f"<think> leaked in {style}/{diff}")

    # tell_story without model -> fallback
    old_url = config.MODAL_ENDPOINT_URL
    old_key = config.MODAL_API_KEY
    config.MODAL_ENDPOINT_URL = ""
    config.MODAL_API_KEY = ""
    # Reset the cached client
    import llm
    llm._client = None
    s = narrate.tell_story(m, summaries, "plain", "teen")
    assert_true("narrate_fallback_title", s.title)
    config.MODAL_ENDPOINT_URL = old_url
    config.MODAL_API_KEY = old_key
    llm._client = None

    # Progress callback
    progress_calls = []
    def track(i, total, path):
        progress_calls.append((i, total, path))
    narrate.summarise_files(m, progress=track)
    assert_true("narrate_progress", len(progress_calls) > 0,
                f"no progress calls")


test_narrate()


# ============================================================
# 12. DIAGRAM
# ============================================================
print("\n=== 12. DIAGRAM ===")

def test_diagram():
    m = analyze_project(from_folder("scripts/sample_project", name="test"))

    # build_mermaid
    mermaid = build_mermaid(m)
    assert_true("mermaid_has_flowchart", mermaid.startswith("flowchart TD"))
    assert_true("mermaid_has_nodes", "[" in mermaid)
    assert_true("mermaid_has_edges", "-->" in mermaid)
    assert_true("mermaid_has_subgraphs", "subgraph" in mermaid)

    # Empty model
    empty_m = ProjectModel(name="empty")
    mermaid = build_mermaid(empty_m)
    assert_true("mermaid_empty", "No code files" in mermaid)

    # render_html
    html = render_html(m)
    assert_true("render_has_mermaid", "mermaid" in html)
    assert_true("render_has_key", "data-key" in html)

    # Special characters in filenames (should not break Mermaid)
    m2 = ProjectModel(
        name="test",
        files=[FileInfo(path='weird "name".py', lang="python", role="backend")]
    )
    mermaid = build_mermaid(m2)
    assert_no_crash("mermaid_special_chars", build_mermaid, m2)


test_diagram()


# ============================================================
# 13. DB
# ============================================================
print("\n=== 13. DB ===")

def test_db():
    with tempfile.TemporaryDirectory() as td:
        old_path = config.DB_PATH
        config.DB_PATH = os.path.join(td, "test.db")
        init_db()

        story_dict = {"title": "Test", "overview": "A test story", "steps": []}
        sid = save_story("myproject", "plain", "teen", story_dict)
        assert_true("db_save_id", sid > 0, f"got {sid}")

        stories = list_stories()
        assert_eq("db_list_count", len(stories), 1)
        assert_eq("db_list_name", stories[0]["name"], "myproject")

        loaded = get_story(sid)
        assert_true("db_load", loaded is not None)
        assert_eq("db_load_title", loaded["story"]["title"], "Test")
        assert_eq("db_load_style", loaded["style"], "plain")

        # Non-existent story
        assert_eq("db_get_missing", get_story(99999), None)

        config.DB_PATH = old_path


test_db()


# ============================================================
# 14. UI / THEME
# ============================================================
print("\n=== 14. UI / THEME ===")

def test_ui():
    from ui import theme

    # HTML escaping in story
    s = ProjectStory(
        title="<script>alert('xss')</script>",
        overview='He said "hello" & \'goodbye\'',
        steps=[StorySection(heading="<b>bold</b>", body="step & 1")],
        plain_overview="plain <text>"
    )
    html = theme.story_html(s)
    assert_true("ui_xss_title", "<script>" not in html,
                f"XSS in title not escaped: {html[:200]}")
    assert_true("ui_xss_body", "<b>bold</b>" not in html,
                f"HTML in body not escaped")
    assert_true("ui_ampersand", "&amp;" in html or "&" in html,
                "ampersand handling")

    # banner
    html = theme.banner("test message", "warn")
    assert_true("banner_has_text", "test message" in html)
    assert_true("banner_has_class", "warn" in html)
    assert_eq("banner_empty", theme.banner(""), "")

    # safe_to_edit_html
    m = analyze_project(from_folder("scripts/sample_project", name="test"))
    html = theme.safe_to_edit_html(m)
    assert_true("safe_has_legend", "safe to change" in html.lower() or "🟢" in html)
    assert_true("safe_has_files", ".py" in html)

    # deps_html
    html = theme.deps_html(m)
    assert_true("deps_has_packages", "📦" in html or "openai" in html.lower())

    # deps_html with no deps
    empty_m = ProjectModel(name="empty")
    html = theme.deps_html(empty_m)
    assert_true("deps_empty", "No dependency" in html or "no dependency" in html.lower())

    # plain_panel_html
    html = theme.plain_panel_html(s)
    assert_true("plain_has_label", "Plain English" in html)
    assert_true("plain_has_body", "plain <text>" not in html)

    # header_html
    html = theme.header_html()
    assert_true("header_has_storycode", "StoryCode" in html or "Story" in html)


test_ui()


# ============================================================
# 15. CONFIG EDGE CASES
# ============================================================
print("\n=== 15. CONFIG EDGE CASES ===")

def test_config():
    # Language detection
    assert_eq("cfg_py", config.LANG_BY_EXT.get(".py"), "python")
    assert_eq("cfg_js", config.LANG_BY_EXT.get(".js"), "javascript")
    assert_eq("cfg_ts", config.LANG_BY_EXT.get(".ts"), "typescript")
    assert_eq("cfg_jsx", config.LANG_BY_EXT.get(".jsx"), "javascript")
    assert_eq("cfg_tsx", config.LANG_BY_EXT.get(".tsx"), "typescript")
    assert_eq("cfg_html", config.LANG_BY_EXT.get(".html"), "html")
    assert_eq("cfg_css", config.LANG_BY_EXT.get(".css"), "css")
    assert_eq("cfg_json", config.LANG_BY_EXT.get(".json"), "json")
    assert_eq("cfg_yaml", config.LANG_BY_EXT.get(".yaml"), "yaml")
    assert_eq("cfg_unknown", config.LANG_BY_EXT.get(".xyz"), None)

    # Binary extensions
    assert_true("cfg_binary_png", ".png" in config.BINARY_EXTS)
    assert_true("cfg_binary_zip", ".zip" in config.BINARY_EXTS)
    assert_true("cfg_binary_exe", ".exe" in config.BINARY_EXTS)

    # Ignore dirs
    assert_true("cfg_ignore_node", "node_modules" in config.IGNORE_DIRS)
    assert_true("cfg_ignore_git", ".git" in config.IGNORE_DIRS)

    # Roles
    role_keys = {r.key for r in config.ROLES}
    assert_true("cfg_roles_complete",
                {"entry", "frontend", "backend", "data", "config", "test", "util", "other"}.issubset(role_keys))

    # Styles
    assert_eq("cfg_styles_count", len(config.STYLES), 5)
    assert_eq("cfg_default_style", config.DEFAULT_STYLE, "plain")

    # Difficulties
    assert_eq("cfg_diff_count", len(config.DIFFICULTIES), 3)
    assert_eq("cfg_default_diff", config.DEFAULT_DIFFICULTY, "teen")


test_config()


# ============================================================
# 16. INTEGRATION: FULL PIPELINE EDGE CASES
# ============================================================
print("\n=== 16. INTEGRATION: FULL PIPELINE EDGE CASES ===")

def test_integration():
    # Project with mixed languages
    with tempfile.TemporaryDirectory() as td:
        with open(os.path.join(td, "app.py"), "w") as f:
            f.write("import config\nx = 1\n")
        with open(os.path.join(td, "config.py"), "w") as f:
            f.write("y = 2\n")
        with open(os.path.join(td, "ui.html"), "w") as f:
            f.write('<html><script src="app.js"></script></html>')
        with open(os.path.join(td, "style.css"), "w") as f:
            f.write(".header { color: red; }\n")
        with open(os.path.join(td, "app.js"), "w") as f:
            f.write('import React from "react";\nconst x = () => null;\n')
        with open(os.path.join(td, "package.json"), "w") as f:
            f.write('{"dependencies":{"react":"^18"}}')

        ingested = from_folder(td, name="mixed")
        m = analyze_project(ingested)
        assert_true("mix_has_files", len(m.files) >= 5, f"got {len(m.files)}")
        assert_true("mix_has_langs", len(m.languages) >= 2, f"got {m.languages}")
        assert_true("mix_has_deps", len(m.deps) > 0, "no deps found")

        # Can generate mermaid
        mermaid = build_mermaid(m)
        assert_true("mix_mermaid", "flowchart" in mermaid)

    # Project with only binary/unsupported files
    with tempfile.TemporaryDirectory() as td:
        with open(os.path.join(td, "image.png"), "wb") as f:
            f.write(b"\x89PNG" + b"\x00" * 100)
        ingested = from_folder(td, name="only_binary")
        assert_true("only_binary_empty", len(ingested.files) == 0)

    # Very long filename
    with tempfile.TemporaryDirectory() as td:
        long_name = "a" * 200 + ".py"
        with open(os.path.join(td, long_name), "w") as f:
            f.write("x = 1\n")
        ingested = from_folder(td, name="long_name")
        # Should handle gracefully
        m = analyze_project(ingested)
        assert_true("long_name_ok", len(m.files) >= 1)


test_integration()


# ============================================================
# 17. ZIPSHELL EDGE CASES
# ============================================================
print("\n=== 17. ZIP EDGE CASES ===")

def test_zip_edge():
    # Zip-slip attack path
    with tempfile.TemporaryDirectory() as td:
        zip_path = os.path.join(td, "slip.zip")
        with zipfile.ZipFile(zip_path, "w") as zf:
            # Try to write outside the extraction dir
            zf.writestr("../../../etc/passwd", "x = 1")
            zf.writestr("normal.py", "y = 2")
        ingested = from_zip(zip_path)
        assert_true("zipslip_blocked", all("passwd" not in f.path for f in ingested.files),
                    f"zip-slip file leaked: {[f.path for f in ingested.files]}")
        assert_true("zipslip_normal", any("normal.py" in f.path for f in ingested.files))

    # Empty zip
    with tempfile.TemporaryDirectory() as td:
        zip_path = os.path.join(td, "empty.zip")
        with zipfile.ZipFile(zip_path, "w") as zf:
            pass
        ingested = from_zip(zip_path)
        assert_eq("zip_empty", len(ingested.files), 0)

    # Zip with only directories
    with tempfile.TemporaryDirectory() as td:
        zip_path = os.path.join(td, "dirs.zip")
        with zipfile.ZipFile(zip_path, "w") as zf:
            zf.writestr("a/", "")
            zf.writestr("b/", "")
        ingested = from_zip(zip_path)
        assert_eq("zip_only_dirs", len(ingested.files), 0)

    # Zip with secrets
    with tempfile.TemporaryDirectory() as td:
        zip_path = os.path.join(td, "secrets.zip")
        with zipfile.ZipFile(zip_path, "w") as zf:
            zf.writestr("config.py", 'API_KEY = "sk-abc123def456ghi789jkl012"')
        ingested = from_zip(zip_path)
        assert_true("zip_secret_found", len(ingested.secrets_found) > 0,
                    f"secret not detected: {ingested.secrets_found}")


test_zip_edge()


# ============================================================
# 18. CONCURRENT CACHE TEST
# ============================================================
print("\n=== 18. NARRATE CACHE TEST ===")

def test_cache():
    m = analyze_project(from_folder("scripts/sample_project", name="test"))
    narrate._SUMMARY_CACHE.clear()
    s1 = narrate.summarise_files(m)
    s2 = narrate.summarise_files(m)
    assert_eq("cache_same_result", s1, s2)
    # Cache should have entries
    assert_true("cache_has_entries", len(narrate._SUMMARY_CACHE) > 0)


test_cache()


# ============================================================
# 19. APP.PY INTEGRATION (import + build)
# ============================================================
print("\n=== 19. APP BUILD TEST ===")

def test_app_build():
    import app as app_mod
    demo = app_mod.build()
    assert_true("app_build_blocks", demo is not None)
    assert_true("app_build_type", "Blocks" in str(type(demo)))

    # analyze_sample works
    with tempfile.TemporaryDirectory() as td:
        # analyze_sample uses from_folder internally
        ingested = from_folder("scripts/sample_project", name="doc-qa (sample)")
        m = analyze_project(ingested)
        assert_true("app_sample_model", len(m.files) > 0)

    # restyle works with None model
    result = app_mod.restyle(None, None, "plain", "teen")
    assert_true("restyle_none", result is not None)


test_app_build()


# ============================================================
# SUMMARY
# ============================================================
print(f"\n{'='*60}")
print(f"RESULTS: {PASSED} passed, {FAILED} bugs found")
print(f"{'='*60}")
if BUGS:
    print("\nBUGS FOUND:")
    for name, detail in BUGS:
        print(f"  [{name}] {detail}")
print()