"""Tests for language extractors: Java, C, C++, Ruby, C#, Kotlin, Scala, PHP, Swift, Go, Julia, Fortran, JS/TS, .NET project files."""
from __future__ import annotations
from pathlib import Path
import pytest
from graphify.extract import (
    extract_java, extract_c, extract_cpp, extract_ruby,
    extract_csharp, extract_kotlin, extract_scala, extract_php,
    extract_swift, extract_go, extract_julia, extract_js, extract_fortran,
    extract_groovy, extract_sln, extract_csproj, extract_razor,
    extract_dm, extract_dmi, extract_dmm, extract_dmf,
)

FIXTURES = Path(__file__).parent / "fixtures"


def _labels(r):
    return [n["label"] for n in r["nodes"]]

def _relations(r):
    return {e["relation"] for e in r["edges"]}

def _calls(r):
    node_by_id = {n["id"]: n["label"] for n in r["nodes"]}
    return {
        (node_by_id.get(e["source"], e["source"]), node_by_id.get(e["target"], e["target"]))
        for e in r["edges"] if e["relation"] == "calls"
    }


def _references(r):
    node_by_id = {n["id"]: n["label"] for n in r["nodes"]}
    return [
        (
            node_by_id.get(e["source"], e["source"]),
            node_by_id.get(e["target"], e["target"]),
            e,
        )
        for e in r["edges"] if e["relation"] == "references"
    ]


def _edges_with_relation(r, *relations):
    return [e for e in r["edges"] if e["relation"] in relations]


def _normalize_symbol_label(label: str) -> str:
    return label.strip("()").lstrip(".")


def _node_by_label(result: dict, label: str) -> dict:
    for node in result["nodes"]:
        if node.get("label") == label or _normalize_symbol_label(node.get("label", "")) == label:
            return node
    raise AssertionError(f"missing node label {label!r}")


def _edge_labels(result: dict, relation: str, context: str | None = None) -> set[tuple[str, str]]:
    labels = {node["id"]: _normalize_symbol_label(node["label"]) for node in result["nodes"]}
    pairs = set()
    for edge in result["edges"]:
        if edge.get("relation") != relation:
            continue
        if context is not None and edge.get("context") != context:
            continue
        pairs.add((labels.get(edge["source"], edge["source"]), labels.get(edge["target"], edge["target"])))
    return pairs


# ── Java ──────────────────────────────────────────────────────────────────────

def test_java_no_error():
    r = extract_java(FIXTURES / "sample.java")
    assert "error" not in r

def test_java_finds_class():
    r = extract_java(FIXTURES / "sample.java")
    assert any("DataProcessor" in l for l in _labels(r))

def test_java_finds_interface():
    r = extract_java(FIXTURES / "sample.java")
    assert any("Processor" in l for l in _labels(r))

def test_java_finds_methods():
    r = extract_java(FIXTURES / "sample.java")
    labels = _labels(r)
    assert any("addItem" in l for l in labels)
    assert any("process" in l for l in labels)

def test_java_finds_imports():
    r = extract_java(FIXTURES / "sample.java")
    assert "imports" in _relations(r)


def test_java_import_edges_have_import_context():
    r = extract_java(FIXTURES / "sample.java")
    import_edges = _edges_with_relation(r, "imports", "imports_from")
    assert import_edges
    assert all(e.get("context") == "import" for e in import_edges)

def test_java_no_dangling_edges():
    r = extract_java(FIXTURES / "sample.java")
    node_ids = {n["id"] for n in r["nodes"]}
    for e in r["edges"]:
        assert e["source"] in node_ids


# ── C ────────────────────────────────────────────────────────────────────────

def test_c_no_error():
    r = extract_c(FIXTURES / "sample.c")
    assert "error" not in r

def test_c_finds_functions():
    r = extract_c(FIXTURES / "sample.c")
    labels = _labels(r)
    assert any("process" in l for l in labels)
    assert any("main" in l for l in labels)

def test_c_finds_includes():
    r = extract_c(FIXTURES / "sample.c")
    assert "imports" in _relations(r)

def test_c_emits_calls():
    r = extract_c(FIXTURES / "sample.c")
    assert any(e["relation"] == "calls" for e in r["edges"])

def test_c_calls_are_extracted():
    r = extract_c(FIXTURES / "sample.c")
    for e in r["edges"]:
        if e["relation"] == "calls":
            assert e["confidence"] == "EXTRACTED"


def test_c_import_edges_have_import_context():
    r = extract_c(FIXTURES / "sample.c")
    import_edges = _edges_with_relation(r, "imports", "imports_from")
    assert import_edges
    assert all(e.get("context") == "import" for e in import_edges)


def test_c_call_edges_have_call_context():
    r = extract_c(FIXTURES / "sample.c")
    call_edges = _edges_with_relation(r, "calls")
    assert call_edges
    assert all(e.get("context") == "call" for e in call_edges)


# ── C++ ───────────────────────────────────────────────────────────────────────

def test_cpp_no_error():
    r = extract_cpp(FIXTURES / "sample.cpp")
    assert "error" not in r

def test_cpp_finds_class():
    r = extract_cpp(FIXTURES / "sample.cpp")
    assert any("HttpClient" in l for l in _labels(r))

def test_cpp_finds_methods():
    r = extract_cpp(FIXTURES / "sample.cpp")
    labels = _labels(r)
    # C++ extractor captures the constructor and public-visible methods
    assert any("HttpClient" in l for l in labels)

def test_cpp_finds_includes():
    r = extract_cpp(FIXTURES / "sample.cpp")
    assert "imports" in _relations(r)


def test_cpp_import_edges_have_import_context():
    r = extract_cpp(FIXTURES / "sample.cpp")
    import_edges = _edges_with_relation(r, "imports", "imports_from")
    assert import_edges
    assert all(e.get("context") == "import" for e in import_edges)


def test_cpp_class_inherits_edge():
    """Regression for #915: `class Derived : public Base {}` should emit an inherits edge."""
    r = extract_cpp(FIXTURES / "sample.cpp")
    node_by_id = {n["id"]: n["label"] for n in r["nodes"]}
    found = any(
        "AuthedHttpClient" in node_by_id.get(e["source"], "")
        and "HttpClient" in node_by_id.get(e["target"], "")
        for e in r["edges"] if e["relation"] == "inherits"
    )
    assert found, "AuthedHttpClient should have inherits edge to HttpClient"


def test_cpp_struct_inherits_edge():
    """Structs use the same `: Base` syntax as classes and must also emit inherits."""
    r = extract_cpp(FIXTURES / "sample.cpp")
    node_by_id = {n["id"]: n["label"] for n in r["nodes"]}
    found = any(
        "RetryingHttpClient" in node_by_id.get(e["source"], "")
        and "HttpClient" in node_by_id.get(e["target"], "")
        for e in r["edges"] if e["relation"] == "inherits"
    )
    assert found, "RetryingHttpClient (struct) should have inherits edge to HttpClient"


# ── Ruby ─────────────────────────────────────────────────────────────────────

def test_ruby_no_error():
    r = extract_ruby(FIXTURES / "sample.rb")
    assert "error" not in r

def test_ruby_finds_class():
    r = extract_ruby(FIXTURES / "sample.rb")
    assert any("ApiClient" in l for l in _labels(r))

def test_ruby_finds_methods():
    r = extract_ruby(FIXTURES / "sample.rb")
    labels = _labels(r)
    assert any("get" in l for l in labels)
    assert any("post" in l for l in labels)

def test_ruby_finds_function():
    r = extract_ruby(FIXTURES / "sample.rb")
    assert any("parse_response" in l for l in _labels(r))


# ── C# ───────────────────────────────────────────────────────────────────────

def test_csharp_no_error():
    r = extract_csharp(FIXTURES / "sample.cs")
    assert "error" not in r

def test_csharp_finds_class():
    r = extract_csharp(FIXTURES / "sample.cs")
    assert any("DataProcessor" in l for l in _labels(r))

def test_csharp_finds_interface():
    r = extract_csharp(FIXTURES / "sample.cs")
    assert any("IProcessor" in l for l in _labels(r))

def test_csharp_finds_methods():
    r = extract_csharp(FIXTURES / "sample.cs")
    labels = _labels(r)
    assert any("Process" in l for l in labels)

def test_csharp_finds_usings():
    r = extract_csharp(FIXTURES / "sample.cs")
    assert "imports" in _relations(r)

def test_csharp_inherits_edge():
    r = extract_csharp(FIXTURES / "sample.cs")
    inherits = [e for e in r["edges"] if e["relation"] == "inherits"]
    assert len(inherits) >= 1

def test_csharp_implements_iprocessor():
    r = extract_csharp(FIXTURES / "sample.cs")
    node_by_id = {n["id"]: n["label"] for n in r["nodes"]}
    found = any(
        "DataProcessor" in node_by_id.get(e["source"], "") and
        "IProcessor" in node_by_id.get(e["target"], "")
        for e in r["edges"] if e["relation"] == "implements"
    )
    assert found, "DataProcessor should have implements edge to IProcessor"


def test_csharp_splits_inherits_and_implements_edges():
    result = extract_csharp(FIXTURES / "sample.cs")
    assert ("DataProcessor", "Processor") in _edge_labels(result, "inherits")
    assert ("DataProcessor", "IProcessor") in _edge_labels(result, "implements")


def test_csharp_parameter_return_and_generic_contexts():
    result = extract_csharp(FIXTURES / "sample.cs")
    assert ("Build", "HttpClient") in _edge_labels(result, "references", "parameter_type")
    assert ("Build", "Result") in _edge_labels(result, "references", "return_type")
    assert ("Build", "DataProcessor") in _edge_labels(result, "references", "generic_arg")


def test_java_normalizes_inherits_and_implements():
    result = extract_java(FIXTURES / "sample.java")
    assert ("DataProcessor", "BaseProcessor") in _edge_labels(result, "inherits")
    assert ("DataProcessor", "Processor") in _edge_labels(result, "implements")


def test_java_parameter_return_generic_and_attribute_contexts():
    result = extract_java(FIXTURES / "sample.java")
    assert ("build", "HttpClient") in _edge_labels(result, "references", "parameter_type")
    assert ("build", "Result") in _edge_labels(result, "references", "return_type")
    assert ("build", "DataProcessor") in _edge_labels(result, "references", "generic_arg")
    assert ("build", "Override") in _edge_labels(result, "references", "attribute")


def test_csharp_field_type_references_have_field_context():
    r = extract_csharp(FIXTURES / "sample.cs")
    refs = _references(r)
    assert any(
        "DataProcessor" in src and "HttpClient" in tgt and edge.get("context") == "field"
        for src, tgt, edge in refs
    ), "DataProcessor field declarations should reference HttpClient with field context"


def test_csharp_call_edges_have_call_context():
    r = extract_csharp(FIXTURES / "sample.cs")
    node_by_id = {n["id"]: n["label"] for n in r["nodes"]}
    assert any(
        "Process" in node_by_id.get(e["source"], "")
        and "Validate" in node_by_id.get(e["target"], "")
        and e.get("context") == "call"
        for e in r["edges"] if e["relation"] == "calls"
    ), "C# call edges should retain call context"


def test_csharp_import_edges_have_import_context():
    r = extract_csharp(FIXTURES / "sample.cs")
    import_edges = [e for e in r["edges"] if e["relation"] == "imports"]
    assert import_edges
    assert all(e.get("context") == "import" for e in import_edges)


# ── Kotlin ───────────────────────────────────────────────────────────────────

def test_kotlin_no_error():
    r = extract_kotlin(FIXTURES / "sample.kt")
    assert "error" not in r

def test_kotlin_finds_class():
    r = extract_kotlin(FIXTURES / "sample.kt")
    assert any("HttpClient" in l for l in _labels(r))

def test_kotlin_finds_data_class():
    r = extract_kotlin(FIXTURES / "sample.kt")
    assert any("Config" in l for l in _labels(r))

def test_kotlin_finds_methods():
    r = extract_kotlin(FIXTURES / "sample.kt")
    labels = _labels(r)
    assert any("get" in l for l in labels)
    assert any("post" in l for l in labels)

def test_kotlin_finds_function():
    r = extract_kotlin(FIXTURES / "sample.kt")
    assert any("createClient" in l for l in _labels(r))

def test_kotlin_emits_in_file_calls():
    """Regression test for the call-walker `simple_identifier` /
    `identifier` rename — see graphify-kmp's PythonParityTest."""
    r = extract_kotlin(FIXTURES / "sample.kt")
    calls = _calls(r)
    # In sample.kt: get() and post() both call buildRequest(), and
    # createClient() invokes Config and HttpClient (constructor calls).
    assert (".get()", ".buildRequest()") in calls
    assert (".post()", ".buildRequest()") in calls
    assert ("createClient()", "Config") in calls
    assert ("createClient()", "HttpClient") in calls


# ── Scala ─────────────────────────────────────────────────────────────────────

def test_scala_no_error():
    r = extract_scala(FIXTURES / "sample.scala")
    assert "error" not in r

def test_scala_finds_class():
    r = extract_scala(FIXTURES / "sample.scala")
    assert any("HttpClient" in l for l in _labels(r))

def test_scala_finds_object():
    r = extract_scala(FIXTURES / "sample.scala")
    assert any("HttpClientFactory" in l for l in _labels(r))

def test_scala_finds_methods():
    r = extract_scala(FIXTURES / "sample.scala")
    labels = _labels(r)
    assert any("get" in l for l in labels)
    assert any("post" in l for l in labels)


def test_scala_import_edges_have_import_context():
    r = extract_scala(FIXTURES / "sample.scala")
    import_edges = _edges_with_relation(r, "imports", "imports_from")
    assert import_edges
    assert all(e.get("context") == "import" for e in import_edges)


def test_scala_call_edges_have_call_context():
    r = extract_scala(FIXTURES / "sample.scala")
    call_edges = _edges_with_relation(r, "calls")
    assert call_edges
    assert all(e.get("context") == "call" for e in call_edges)


# ── PHP ───────────────────────────────────────────────────────────────────────

def test_php_no_error():
    r = extract_php(FIXTURES / "sample.php")
    assert "error" not in r

def test_php_finds_class():
    r = extract_php(FIXTURES / "sample.php")
    assert any("ApiClient" in l for l in _labels(r))

def test_php_finds_methods():
    r = extract_php(FIXTURES / "sample.php")
    labels = _labels(r)
    assert any("get" in l for l in labels)
    assert any("post" in l for l in labels)

def test_php_finds_function():
    r = extract_php(FIXTURES / "sample.php")
    assert any("parseResponse" in l for l in _labels(r))

def test_php_finds_imports():
    r = extract_php(FIXTURES / "sample.php")
    assert "imports" in _relations(r)


def test_php_import_edges_have_import_context():
    r = extract_php(FIXTURES / "sample.php")
    import_edges = _edges_with_relation(r, "imports", "imports_from")
    assert import_edges
    assert all(e.get("context") == "import" for e in import_edges)


def test_php_call_edges_have_call_context():
    r = extract_php(FIXTURES / "sample.php")
    call_edges = _edges_with_relation(r, "calls")
    assert call_edges
    assert all(e.get("context") == "call" for e in call_edges)

def test_php_finds_static_property_access():
    r = extract_php(FIXTURES / "sample_php_static_prop.php")
    assert "uses_static_prop" in _relations(r)

def test_php_static_prop_target_is_holding_class():
    r = extract_php(FIXTURES / "sample_php_static_prop.php")
    node_by_id = {n["id"]: n["label"] for n in r["nodes"]}
    uses_prop = [
        (node_by_id.get(e["source"], e["source"]), node_by_id.get(e["target"], e["target"]))
        for e in r["edges"] if e["relation"] == "uses_static_prop"
    ]
    assert any("DefaultPalette" in tgt for _, tgt in uses_prop)

def test_php_finds_config_helper_call():
    r = extract_php(FIXTURES / "sample_php_config.php")
    assert "uses_config" in _relations(r)

def test_php_config_helper_target_matches_first_segment():
    r = extract_php(FIXTURES / "sample_php_config.php")
    node_by_id = {n["id"]: n["label"] for n in r["nodes"]}
    uses_cfg = [
        (node_by_id.get(e["source"], e["source"]), node_by_id.get(e["target"], e["target"]))
        for e in r["edges"] if e["relation"] == "uses_config"
    ]
    assert any("Throttle" in tgt for _, tgt in uses_cfg)

def test_php_finds_container_bind():
    r = extract_php(FIXTURES / "sample_php_container.php")
    assert "bound_to" in _relations(r)

def test_php_container_bind_links_contract_to_implementation():
    r = extract_php(FIXTURES / "sample_php_container.php")
    node_by_id = {n["id"]: n["label"] for n in r["nodes"]}
    bound = [
        (node_by_id.get(e["source"], e["source"]), node_by_id.get(e["target"], e["target"]))
        for e in r["edges"] if e["relation"] == "bound_to"
    ]
    assert any("PaymentGateway" in src and "StripeGateway" in tgt for src, tgt in bound)

def test_php_finds_event_listeners():
    r = extract_php(FIXTURES / "sample_php_listen.php")
    assert "listened_by" in _relations(r)

def test_php_event_listener_links_event_to_listener():
    r = extract_php(FIXTURES / "sample_php_listen.php")
    node_by_id = {n["id"]: n["label"] for n in r["nodes"]}
    listened = [
        (node_by_id.get(e["source"], e["source"]), node_by_id.get(e["target"], e["target"]))
        for e in r["edges"] if e["relation"] == "listened_by"
    ]
    assert any("UserRegistered" in src and "SendWelcomeEmail" in tgt for src, tgt in listened)


# ── Swift ────────────────────────────────────────────────────────────────────

def test_swift_no_error():
    r = extract_swift(FIXTURES / "sample.swift")
    assert "error" not in r

def test_swift_finds_class():
    r = extract_swift(FIXTURES / "sample.swift")
    assert any("DataProcessor" in l for l in _labels(r))

def test_swift_finds_protocol():
    r = extract_swift(FIXTURES / "sample.swift")
    assert any("Processor" in l for l in _labels(r))

def test_swift_finds_struct():
    r = extract_swift(FIXTURES / "sample.swift")
    assert any("Config" in l for l in _labels(r))

def test_swift_finds_methods():
    r = extract_swift(FIXTURES / "sample.swift")
    labels = _labels(r)
    assert any("addItem" in l for l in labels)
    assert any("process" in l for l in labels)

def test_swift_finds_function():
    r = extract_swift(FIXTURES / "sample.swift")
    assert any("createProcessor" in l for l in _labels(r))

def test_swift_finds_imports():
    r = extract_swift(FIXTURES / "sample.swift")
    assert "imports" in _relations(r)


def test_swift_import_edges_have_import_context():
    r = extract_swift(FIXTURES / "sample.swift")
    import_edges = _edges_with_relation(r, "imports", "imports_from")
    assert import_edges
    assert all(e.get("context") == "import" for e in import_edges)

def test_swift_no_dangling_edges():
    r = extract_swift(FIXTURES / "sample.swift")
    node_ids = {n["id"] for n in r["nodes"]}
    for e in r["edges"]:
        assert e["source"] in node_ids

def test_swift_finds_actor():
    r = extract_swift(FIXTURES / "sample.swift")
    assert any("CacheManager" in l for l in _labels(r))

def test_swift_finds_enum():
    r = extract_swift(FIXTURES / "sample.swift")
    assert any("NetworkError" in l for l in _labels(r))

def test_swift_finds_enum_methods():
    r = extract_swift(FIXTURES / "sample.swift")
    assert any("describe" in l for l in _labels(r))

def test_swift_finds_enum_cases():
    r = extract_swift(FIXTURES / "sample.swift")
    labels = _labels(r)
    assert any("timeout" in l for l in labels)
    assert any("connectionFailed" in l for l in labels)

def test_swift_enum_cases_have_case_of_edge():
    r = extract_swift(FIXTURES / "sample.swift")
    case_edges = [e for e in r["edges"] if e["relation"] == "case_of"]
    assert len(case_edges) >= 2

def test_swift_finds_deinit():
    r = extract_swift(FIXTURES / "sample.swift")
    assert any("deinit" in l for l in _labels(r))

def test_swift_finds_subscript():
    r = extract_swift(FIXTURES / "sample.swift")
    assert any("subscript" in l for l in _labels(r))

def test_swift_extension_methods_attach_to_type():
    r = extract_swift(FIXTURES / "sample.swift")
    node_by_id = {n["id"]: n["label"] for n in r["nodes"]}
    method_edges = [e for e in r["edges"] if e["relation"] == "method"]
    found = False
    for e in method_edges:
        src_label = node_by_id.get(e["source"], "")
        tgt_label = node_by_id.get(e["target"], "")
        if "Config" in src_label and "isValid" in tgt_label:
            found = True
            break
    assert found, "extension method isValid should attach to Config"

def test_swift_extension_does_not_duplicate_type_node():
    r = extract_swift(FIXTURES / "sample.swift")
    config_nodes = [n for n in r["nodes"] if n["label"] == "Config"]
    assert len(config_nodes) == 1, f"Config should appear once, got {len(config_nodes)}"

def test_swift_conformance_edge():
    r = extract_swift(FIXTURES / "sample.swift")
    inherits_edges = [e for e in r["edges"] if e["relation"] == "inherits"]
    node_by_id = {n["id"]: n["label"] for n in r["nodes"]}
    found = False
    for e in inherits_edges:
        src_label = node_by_id.get(e["source"], "")
        tgt_label = node_by_id.get(e["target"], "")
        if "DataProcessor" in src_label and "Processor" in tgt_label:
            found = True
            break
    assert found, "DataProcessor should have inherits edge to Processor"

def test_swift_extension_conformance_edge():
    r = extract_swift(FIXTURES / "sample.swift")
    inherits_edges = [e for e in r["edges"] if e["relation"] == "inherits"]
    node_by_id = {n["id"]: n["label"] for n in r["nodes"]}
    found = False
    for e in inherits_edges:
        src_label = node_by_id.get(e["source"], "")
        tgt_label = node_by_id.get(e["target"], "")
        if "DataProcessor" in src_label and "Loggable" in tgt_label:
            found = True
            break
    assert found, "extension should add conformance edge DataProcessor -> Loggable"

def test_swift_emits_calls():
    r = extract_swift(FIXTURES / "sample.swift")
    calls = _calls(r)
    assert any("process" in src and "validate" in tgt for src, tgt in calls)

def test_swift_call_edges_have_call_context():
    r = extract_swift(FIXTURES / "sample.swift")
    call_edges = _edges_with_relation(r, "calls")
    assert call_edges
    assert all(e.get("context") == "call" for e in call_edges)


def test_swift_extension_across_files_merges_into_canonical_type():
    """`extension Foo` in a separate file from `class Foo` must resolve to a
    single Foo node. tree-sitter-swift parses both as `class_declaration` and
    node ids carry the file stem, so without a corpus-level merge each file
    would emit its own Foo."""
    from graphify.extract import extract
    paths = sorted((FIXTURES / "swift_cross_file").glob("*.swift"))
    r = extract(paths, cache_root=Path("/tmp/graphify-test-no-cache"))
    foo_nodes = [n for n in r["nodes"] if n["label"] == "Foo"]
    assert len(foo_nodes) == 1, f"Foo should appear once, got {len(foo_nodes)}: {[n['id'] for n in foo_nodes]}"
    foo_id = foo_nodes[0]["id"]
    method_targets = {
        e["target"] for e in r["edges"]
        if e["relation"] == "method" and e["source"] == foo_id
    }
    method_labels = {n["label"] for n in r["nodes"] if n["id"] in method_targets}
    assert any("one" in l for l in method_labels), f"one() should attach to Foo, got {method_labels}"
    assert any("two" in l for l in method_labels), f"extension method two() should attach to Foo, got {method_labels}"


# ── Elixir ────────────────────────────────────────────────────────────────────

from graphify.extract import extract_elixir

def test_elixir_finds_module():
    r = extract_elixir(FIXTURES / "sample.ex")
    assert "error" not in r
    labels = [n["label"] for n in r["nodes"]]
    assert any("MyApp.Accounts.User" in l for l in labels)

def test_elixir_finds_functions():
    r = extract_elixir(FIXTURES / "sample.ex")
    labels = [n["label"] for n in r["nodes"]]
    assert any("create" in l for l in labels)
    assert any("find" in l for l in labels)
    assert any("validate" in l for l in labels)

def test_elixir_finds_imports():
    r = extract_elixir(FIXTURES / "sample.ex")
    import_edges = [e for e in r["edges"] if e["relation"] == "imports"]
    assert len(import_edges) >= 2


def test_elixir_import_edges_have_import_context():
    r = extract_elixir(FIXTURES / "sample.ex")
    import_edges = _edges_with_relation(r, "imports", "imports_from")
    assert import_edges
    assert all(e.get("context") == "import" for e in import_edges)

def test_elixir_finds_calls():
    r = extract_elixir(FIXTURES / "sample.ex")
    calls = {(e["source"], e["target"]) for e in r["edges"] if e["relation"] == "calls"}
    labels = {n["id"]: n["label"] for n in r["nodes"]}
    assert any("create" in labels.get(src, "") and "validate" in labels.get(tgt, "") for src, tgt in calls)


def test_elixir_call_edges_have_call_context():
    r = extract_elixir(FIXTURES / "sample.ex")
    call_edges = _edges_with_relation(r, "calls")
    assert call_edges
    assert all(e.get("context") == "call" for e in call_edges)

def test_elixir_method_edges():
    r = extract_elixir(FIXTURES / "sample.ex")
    methods = [e for e in r["edges"] if e["relation"] == "method"]
    assert len(methods) >= 3


# ── Objective-C ──────────────────────────────────────────────────────────────
from graphify.extract import extract_objc


def test_objc_finds_interface():
    r = extract_objc(FIXTURES / "sample.m")
    labels = [n["label"] for n in r["nodes"]]
    assert "Animal" in labels


def test_objc_finds_subclass():
    r = extract_objc(FIXTURES / "sample.m")
    labels = [n["label"] for n in r["nodes"]]
    assert "Dog" in labels


def test_objc_finds_methods():
    r = extract_objc(FIXTURES / "sample.m")
    labels = [n["label"] for n in r["nodes"]]
    assert any("speak" in l or "fetch" in l or "initWithName" in l for l in labels)


def test_objc_finds_imports():
    r = extract_objc(FIXTURES / "sample.m")
    import_edges = [e for e in r["edges"] if e["relation"] == "imports"]
    assert len(import_edges) >= 1


def test_objc_import_edges_have_import_context():
    r = extract_objc(FIXTURES / "sample.m")
    import_edges = _edges_with_relation(r, "imports", "imports_from")
    assert import_edges
    assert all(e.get("context") == "import" for e in import_edges)


def test_objc_inherits_edge():
    r = extract_objc(FIXTURES / "sample.m")
    inherits = [e for e in r["edges"] if e["relation"] == "inherits"]
    assert len(inherits) >= 1


def test_objc_no_dangling_edges():
    r = extract_objc(FIXTURES / "sample.m")
    node_ids = {n["id"] for n in r["nodes"]}
    for e in r["edges"]:
        assert e["source"] in node_ids, f"Dangling source: {e}"


# ---------------------------------------------------------------------------
# Go
# ---------------------------------------------------------------------------

def test_go_receiver_methods_share_type_node():
    """Methods on the same receiver type must share one canonical type node."""
    r = extract_go(FIXTURES / "sample.go")
    server_nodes = [n for n in r["nodes"] if n["label"] == "Server"]
    # Both Start() and Stop() are on *Server — should produce exactly one Server node
    assert len(server_nodes) == 1

def test_go_receiver_uses_pkg_scope():
    """Type node id should be scoped to directory, not file stem."""
    r = extract_go(FIXTURES / "sample.go")
    server_nodes = [n for n in r["nodes"] if n["label"] == "Server"]
    assert server_nodes
    # Should NOT contain the file stem "sample" in the type node id
    assert "sample" not in server_nodes[0]["id"].split(":")[0]


# ---------------------------------------------------------------------------
# Julia
# ---------------------------------------------------------------------------

def test_julia_finds_module():
    r = extract_julia(FIXTURES / "sample.jl")
    labels = [n["label"] for n in r["nodes"]]
    assert "Geometry" in labels


def test_julia_finds_structs():
    r = extract_julia(FIXTURES / "sample.jl")
    labels = [n["label"] for n in r["nodes"]]
    assert "Point" in labels
    assert "Circle" in labels


def test_julia_finds_abstract_type():
    r = extract_julia(FIXTURES / "sample.jl")
    labels = [n["label"] for n in r["nodes"]]
    assert "Shape" in labels


def test_julia_finds_functions():
    r = extract_julia(FIXTURES / "sample.jl")
    labels = [n["label"] for n in r["nodes"]]
    assert any("area" in l for l in labels)
    assert any("distance" in l for l in labels)


def test_julia_finds_short_function():
    r = extract_julia(FIXTURES / "sample.jl")
    labels = [n["label"] for n in r["nodes"]]
    assert any("perimeter" in l for l in labels)


def test_julia_finds_imports():
    r = extract_julia(FIXTURES / "sample.jl")
    import_edges = [e for e in r["edges"] if e["relation"] == "imports"]
    assert len(import_edges) >= 1


def test_julia_import_edges_have_import_context():
    r = extract_julia(FIXTURES / "sample.jl")
    import_edges = _edges_with_relation(r, "imports", "imports_from")
    assert import_edges
    assert all(e.get("context") == "import" for e in import_edges)


def test_julia_finds_inherits():
    r = extract_julia(FIXTURES / "sample.jl")
    inherits = [e for e in r["edges"] if e["relation"] == "inherits"]
    assert len(inherits) >= 1


def test_julia_finds_calls():
    r = extract_julia(FIXTURES / "sample.jl")
    call_edges = [e for e in r["edges"] if e["relation"] == "calls"]
    assert len(call_edges) >= 1


def test_julia_call_edges_have_call_context():
    r = extract_julia(FIXTURES / "sample.jl")
    call_edges = _edges_with_relation(r, "calls")
    assert call_edges
    assert all(e.get("context") == "call" for e in call_edges)


def test_julia_no_dangling_edges():
    r = extract_julia(FIXTURES / "sample.jl")
    node_ids = {n["id"] for n in r["nodes"]}
    for e in r["edges"]:
        assert e["source"] in node_ids, f"Dangling source: {e}"


# ── Fortran extractor ────────────────────────────────────────────────────────

def test_fortran_finds_module():
    r = extract_fortran(FIXTURES / "sample.f90")
    assert "error" not in r
    labels = [n["label"] for n in r["nodes"]]
    assert "geometry" in labels


def test_fortran_finds_subroutines():
    r = extract_fortran(FIXTURES / "sample.f90")
    labels = [n["label"] for n in r["nodes"]]
    assert any("circle_area" in l for l in labels)
    assert any("print_area" in l for l in labels)


def test_fortran_finds_function():
    r = extract_fortran(FIXTURES / "sample.f90")
    labels = [n["label"] for n in r["nodes"]]
    assert any("distance" in l for l in labels)


def test_fortran_finds_program():
    r = extract_fortran(FIXTURES / "sample.f90")
    labels = [n["label"] for n in r["nodes"]]
    assert "main" in labels


def test_fortran_finds_use_imports():
    r = extract_fortran(FIXTURES / "sample.f90")
    import_edges = [e for e in r["edges"] if e["relation"] == "imports"]
    assert len(import_edges) >= 2


def test_fortran_use_edges_have_use_context():
    r = extract_fortran(FIXTURES / "sample.f90")
    import_edges = [e for e in r["edges"] if e["relation"] == "imports"]
    assert all(e.get("context") == "use" for e in import_edges)


def test_fortran_finds_calls():
    r = extract_fortran(FIXTURES / "sample.f90")
    call_edges = [e for e in r["edges"] if e["relation"] == "calls"]
    assert len(call_edges) >= 1


def test_fortran_case_insensitive_names():
    r = extract_fortran(FIXTURES / "sample.f90")
    labels = [n["label"] for n in r["nodes"]]
    assert all(l == l.lower() or "(" in l for l in labels if l.endswith(("()", "")) and not "." in l)
    assert "geometry" in labels
    assert "main" in labels


def test_fortran_no_dangling_edges():
    r = extract_fortran(FIXTURES / "sample.f90")
    node_ids = {n["id"] for n in r["nodes"]}
    for e in r["edges"]:
        assert e["source"] in node_ids, f"Dangling source: {e}"


def test_fortran_capital_F_parses_preprocessed():
    r = extract_fortran(FIXTURES / "sample_preprocessed.F90")
    assert "error" not in r
    labels = [n["label"] for n in r["nodes"]]
    assert "shapes" in labels
    assert any("compute_volume" in l for l in labels)


# ── TypeScript dynamic imports ───────────────────────────────────────────────

def test_ts_dynamic_import_no_error():
    r = extract_js(FIXTURES / "dynamic_import.ts")
    assert "error" not in r

def test_ts_dynamic_import_extracts_edges():
    """Dynamic import() calls inside functions should produce imports_from edges."""
    r = extract_js(FIXTURES / "dynamic_import.ts")
    dyn_edges = [e for e in r["edges"] if e["relation"] == "imports_from"]
    targets = {e["target"] for e in dyn_edges}
    # Should find: static ./logger, dynamic ./mayaEngine.js, dynamic ./queue.js
    assert any("logger" in t for t in targets), f"Missing static import of logger: {targets}"
    assert any("mayaengine" in t.lower() for t in targets), f"Missing dynamic import of mayaEngine: {targets}"
    assert any("queue" in t.lower() for t in targets), f"Missing dynamic import of queue: {targets}"

def test_ts_dynamic_import_confidence():
    """Dynamic imports should have EXTRACTED confidence (they are deterministic string literals)."""
    r = extract_js(FIXTURES / "dynamic_import.ts")
    dyn_edges = [e for e in r["edges"]
                 if e["relation"] == "imports_from"
                 and "mayaengine" in e["target"].lower()]
    assert len(dyn_edges) >= 1
    assert dyn_edges[0]["confidence"] == "EXTRACTED"

def test_ts_dynamic_import_source_is_function():
    """Dynamic import edge source should be the enclosing function, not the file."""
    r = extract_js(FIXTURES / "dynamic_import.ts")
    node_labels = {n["id"]: n["label"] for n in r["nodes"]}
    dyn_edges = [e for e in r["edges"]
                 if e["relation"] == "imports_from"
                 and "mayaengine" in e["target"].lower()]
    assert len(dyn_edges) >= 1
    src_label = node_labels.get(dyn_edges[0]["source"], "")
    assert "processInbound" in src_label, f"Expected processInbound as source, got {src_label}"

def test_ts_no_dynamic_import_in_sync_fn():
    """Functions without dynamic imports should not get spurious imports_from edges."""
    r = extract_js(FIXTURES / "dynamic_import.ts")
    node_ids = {n["label"]: n["id"] for n in r["nodes"]}
    sync_nid = node_ids.get("syncOnly()")
    if sync_nid:
        sync_imports = [e for e in r["edges"]
                        if e["source"] == sync_nid and e["relation"] == "imports_from"]
        assert len(sync_imports) == 0

def test_ts_dynamic_template_literal_skipped():
    """Dynamic template literals (with ${}) must not produce an imports_from edge."""
    r = extract_js(FIXTURES / "dynamic_import.ts")
    targets = {e["target"] for e in r["edges"] if e["relation"] == "imports_from"}
    # loadHandler uses `./handlers/${handlerName}` — no static path, must be absent
    assert not any("handler" in t.lower() and "$" in t for t in targets), \
        f"Garbage edge from dynamic template literal found: {targets}"
    # More robust: no target should contain a brace character
    assert not any("{" in t or "}" in t for t in targets), \
        f"Target contains unresolved template expression: {targets}"

def test_ts_static_template_literal_resolved():
    """Static template literals (no ${}) should resolve the same as a plain string."""
    r = extract_js(FIXTURES / "dynamic_import.ts")
    targets = {e["target"] for e in r["edges"] if e["relation"] == "imports_from"}
    assert any("statichelper" in t.lower() for t in targets), \
        f"Static template literal import not resolved: {targets}"


# ── Markdown ─────────────────────────────────────────────────────────────────

from graphify.extract import extract_markdown

def test_markdown_no_error():
    r = extract_markdown(FIXTURES / "deploy_guide.md")
    assert "error" not in r

def test_markdown_finds_headings():
    r = extract_markdown(FIXTURES / "deploy_guide.md")
    labels = _labels(r)
    assert any("Deploy Guide" in l for l in labels)
    assert any("Prerequisites" in l for l in labels)
    assert any("Full Deploy" in l for l in labels)
    assert any("Rollback" in l for l in labels)

def test_markdown_finds_nested_heading():
    """### Database Migration is nested under ## Full Deploy."""
    r = extract_markdown(FIXTURES / "deploy_guide.md")
    labels = _labels(r)
    assert any("Database Migration" in l for l in labels)

def test_markdown_finds_code_blocks():
    r = extract_markdown(FIXTURES / "deploy_guide.md")
    labels = _labels(r)
    assert any("code:bash" in l for l in labels)
    assert any("code:sql" in l for l in labels)
    assert any("code:python" in l for l in labels)

def test_markdown_contains_edges():
    """Headings and code blocks should be connected via 'contains' edges."""
    r = extract_markdown(FIXTURES / "deploy_guide.md")
    assert "contains" in _relations(r)
    contains_edges = [e for e in r["edges"] if e["relation"] == "contains"]
    assert len(contains_edges) >= 5  # file->h1, h1->h2s, h2->h3, h2->codeblocks

def test_markdown_no_dangling_edges():
    r = extract_markdown(FIXTURES / "deploy_guide.md")
    node_ids = {n["id"] for n in r["nodes"]}
    for e in r["edges"]:
        assert e["source"] in node_ids, f"Dangling source: {e}"


# ── Groovy ───────────────────────────────────────────────────────────────────


def test_groovy_no_error():
    r = extract_groovy(FIXTURES / "sample.groovy")
    assert "error" not in r


def test_groovy_finds_class():
    r = extract_groovy(FIXTURES / "sample.groovy")
    assert any("SampleService" in l for l in _labels(r))


def test_groovy_finds_methods():
    r = extract_groovy(FIXTURES / "sample.groovy")
    labels = _labels(r)
    assert any("process" in l for l in labels)
    assert any("reset" in l for l in labels)


def test_groovy_finds_imports():
    r = extract_groovy(FIXTURES / "sample.groovy")
    assert "imports" in _relations(r)


def test_groovy_import_edges_have_import_context():
    r = extract_groovy(FIXTURES / "sample.groovy")
    import_edges = _edges_with_relation(r, "imports", "imports_from")
    assert import_edges
    assert all(e.get("context") == "import" for e in import_edges)


def test_groovy_no_dangling_edges():
    r = extract_groovy(FIXTURES / "sample.groovy")
    node_ids = {n["id"] for n in r["nodes"]}
    for e in r["edges"]:
        assert e["source"] in node_ids


def test_groovy_spock_finds_class():
    r = extract_groovy(FIXTURES / "sample_spock.groovy")
    assert any("SampleSpec" in l for l in _labels(r))


def test_groovy_spock_finds_feature_methods():
    r = extract_groovy(FIXTURES / "sample_spock.groovy")
    feature_labels = [l for l in _labels(r) if l.startswith('"')]
    assert len(feature_labels) >= 2


def test_groovy_spock_finds_method_with_apostrophe():
    r = extract_groovy(FIXTURES / "sample_spock.groovy")
    assert any("it's" in l for l in _labels(r))


def test_groovy_spock_preserves_import_edges():
    r = extract_groovy(FIXTURES / "sample_spock.groovy")
    assert "imports" in _relations(r)


def test_groovy_spock_no_dangling_edges():
    r = extract_groovy(FIXTURES / "sample_spock.groovy")
    node_ids = {n["id"] for n in r["nodes"]}
    for e in r["edges"]:
        assert e["source"] in node_ids


# ── DM (BYOND DreamMaker) ────────────────────────────────────────────────────

def test_dm_no_error():
    r = extract_dm(FIXTURES / "sample.dm")
    assert "error" not in r

def test_dm_finds_global_proc():
    r = extract_dm(FIXTURES / "sample.dm")
    labels = _labels(r)
    assert any(l == "log_event()" for l in labels)
    assert any(l == "RunTest()" for l in labels)

def test_dm_finds_type_definition():
    r = extract_dm(FIXTURES / "sample.dm")
    labels = _labels(r)
    assert "/datum/weapon" in labels
    assert "/datum/weapon/sword" in labels

def test_dm_qualifies_proc_with_type_path():
    r = extract_dm(FIXTURES / "sample.dm")
    labels = _labels(r)
    assert "/datum/weapon/attack()" in labels
    assert "/datum/weapon/sword/attack()" in labels

def test_dm_finds_path_form_proc_definition():
    r = extract_dm(FIXTURES / "sample.dm")
    assert "/datum/weapon/sword/sharpen()" in _labels(r)

def test_dm_emits_include_edge():
    r = extract_dm(FIXTURES / "sample.dm")
    import_edges = _edges_with_relation(r, "imports", "imports_from")
    assert import_edges
    assert all(e.get("context") == "import" for e in import_edges)

def test_dm_unresolved_include_flagged_external():
    r = extract_dm(FIXTURES / "sample.dm")
    import_edges = _edges_with_relation(r, "imports", "imports_from")
    helpers = [e for e in import_edges if "helpers" in e["target"]]
    assert helpers
    assert all(e.get("external") is True for e in helpers)

def test_dm_resolves_in_file_calls():
    r = extract_dm(FIXTURES / "sample.dm")
    calls = _calls(r)
    assert any(callee == "log_event()" for _, callee in calls)
    assert ("/datum/weapon/sword/attack()", "/datum/weapon/sword/sharpen()") in calls

def test_dm_ambiguous_member_call_left_unresolved():
    r = extract_dm(FIXTURES / "sample.dm")
    calls = _calls(r)
    runtest_to_attack = [c for s, c in calls
                         if s == "RunTest()" and "attack" in c]
    assert not runtest_to_attack
    assert any(rc["callee"] == "attack" for rc in r.get("raw_calls", []))

def test_dm_emits_new_as_instantiates():
    r = extract_dm(FIXTURES / "sample.dm")
    node_by_id = {n["id"]: n["label"] for n in r["nodes"]}
    inst = [(node_by_id.get(e["source"]), node_by_id.get(e["target"]))
            for e in r["edges"] if e["relation"] == "instantiates"]
    assert ("RunTest()", "/datum/weapon/sword") in inst

def test_dm_call_edges_have_call_context():
    r = extract_dm(FIXTURES / "sample.dm")
    call_edges = _edges_with_relation(r, "calls", "instantiates")
    assert call_edges
    assert all(e.get("context") == "call" for e in call_edges)

def test_dm_no_dangling_edges():
    r = extract_dm(FIXTURES / "sample.dm")
    node_ids = {n["id"] for n in r["nodes"]}
    for e in r["edges"]:
        assert e["source"] in node_ids

def test_dm_super_call_not_emitted():
    r = extract_dm(FIXTURES / "sample.dm")
    calls = _calls(r)
    assert not any(callee.strip("()") == ".." for _, callee in calls)
    assert not any(rc["callee"] == ".." for rc in r.get("raw_calls", []))


# ── DMI (BYOND icon sheets) ──────────────────────────────────────────────────

def test_dmi_no_error():
    r = extract_dmi(FIXTURES / "sample.dmi")
    assert "error" not in r

def test_dmi_emits_state_nodes():
    r = extract_dmi(FIXTURES / "sample.dmi")
    labels = _labels(r)
    assert any(l == '"mob"' for l in labels)

def test_dmi_state_contained_by_file():
    r = extract_dmi(FIXTURES / "sample.dmi")
    node_by_id = {n["id"]: n["label"] for n in r["nodes"]}
    contains = [(node_by_id.get(e["source"]), node_by_id.get(e["target"]))
                for e in r["edges"] if e["relation"] == "contains"]
    assert ("sample.dmi", '"mob"') in contains


# ── DMM (BYOND map files) ────────────────────────────────────────────────────

def test_dmm_no_error():
    r = extract_dmm(FIXTURES / "sample.dmm")
    assert "error" not in r

def test_dmm_extracts_type_paths_as_uses_edges():
    r = extract_dmm(FIXTURES / "sample.dmm")
    targets = {e["target"] for e in r["edges"] if e["relation"] == "uses"}
    assert "turf_closed_wall" in targets
    assert "obj_structure_table" in targets
    assert "obj_item_weapon_sword" in targets

def test_dmm_strips_var_overrides():
    r = extract_dmm(FIXTURES / "sample.dmm")
    targets = {e["target"] for e in r["edges"] if e["relation"] == "uses"}
    assert not any("{" in t for t in targets)
    assert "obj_item_weapon_sword" in targets

def test_dmm_handles_multiline_tile_definition():
    r = extract_dmm(FIXTURES / "sample.dmm")
    targets = {e["target"] for e in r["edges"] if e["relation"] == "uses"}
    assert "area_station_maintenance" in targets

def test_dmm_skips_grid_section():
    r = extract_dmm(FIXTURES / "sample.dmm")
    targets = {e["target"] for e in r["edges"] if e["relation"] == "uses"}
    assert len(targets) == 5


# ── DMF (BYOND interface forms) ──────────────────────────────────────────────

def test_dmf_no_error():
    r = extract_dmf(FIXTURES / "sample.dmf")
    assert "error" not in r

def test_dmf_extracts_windows():
    r = extract_dmf(FIXTURES / "sample.dmf")
    labels = _labels(r)
    assert 'window "mapwindow"' in labels
    assert 'window "infowindow"' in labels

def test_dmf_elem_labels_carry_control_type():
    r = extract_dmf(FIXTURES / "sample.dmf")
    labels = _labels(r)
    assert 'elem "map" [MAP]' in labels

def test_dmf_elem_under_window():
    r = extract_dmf(FIXTURES / "sample.dmf")
    node_by_id = {n["id"]: n["label"] for n in r["nodes"]}
    contains = [(node_by_id.get(e["source"]), node_by_id.get(e["target"]))
                for e in r["edges"] if e["relation"] == "contains"]
    assert ('window "mapwindow"', 'elem "map" [MAP]') in contains

def test_dmf_no_dangling_edges():
    r = extract_dmf(FIXTURES / "sample.dmf")
    node_ids = {n["id"] for n in r["nodes"]}
    for e in r["edges"]:
        assert e["source"] in node_ids
        assert e["target"] in node_ids


# -- .NET project files (.sln, .csproj, .razor) -------------------------------

def test_sln_no_error():
    r = extract_sln(FIXTURES / "sample.sln")
    assert "error" not in r

def test_sln_finds_projects():
    r = extract_sln(FIXTURES / "sample.sln")
    labels = _labels(r)
    assert any("WebApi" in l for l in labels)
    assert any("Domain" in l for l in labels)

def test_sln_contains_edges():
    r = extract_sln(FIXTURES / "sample.sln")
    assert "contains" in _relations(r)

def test_sln_project_dependency_edges():
    r = extract_sln(FIXTURES / "sample.sln")
    assert "imports" in _relations(r)

def test_csproj_no_error():
    r = extract_csproj(FIXTURES / "sample.csproj")
    assert "error" not in r

def test_csproj_finds_packages():
    r = extract_csproj(FIXTURES / "sample.csproj")
    labels = _labels(r)
    assert any("MediatR" in l for l in labels)
    assert any("FluentValidation" in l for l in labels)

def test_csproj_finds_project_references():
    r = extract_csproj(FIXTURES / "sample.csproj")
    labels = _labels(r)
    assert any("Domain.csproj" in l for l in labels)

def test_csproj_finds_target_framework():
    r = extract_csproj(FIXTURES / "sample.csproj")
    assert any("net8.0" in l for l in _labels(r))

def test_csproj_finds_sdk():
    r = extract_csproj(FIXTURES / "sample.csproj")
    assert any("Microsoft.NET.Sdk.Web" in l for l in _labels(r))

def test_razor_no_error():
    r = extract_razor(FIXTURES / "sample.razor")
    assert "error" not in r

def test_razor_finds_using_directives():
    r = extract_razor(FIXTURES / "sample.razor")
    assert "imports" in _relations(r)

def test_razor_finds_component_references():
    r = extract_razor(FIXTURES / "sample.razor")
    assert "calls" in _relations(r)

def test_razor_finds_inherits():
    r = extract_razor(FIXTURES / "sample.razor")
    assert "inherits" in _relations(r)

def test_razor_finds_code_block_methods():
    r = extract_razor(FIXTURES / "sample.razor")
    labels = _labels(r)
    assert any("IncrementCount" in l for l in labels)
    assert any("LoadData" in l for l in labels)

def test_razor_no_dangling_edges():
    r = extract_razor(FIXTURES / "sample.razor")
    node_ids = {n["id"] for n in r["nodes"]}
    for e in r["edges"]:
        assert e["source"] in node_ids