"""AX button-interaction tests for DB Browser for SQLite (Qt6).

Every assertion below encodes an OBSERVED CONSEQUENCE recorded in recon.md
(`## BUTTONS` B-groups 1..5, `## STATE` ST8/ST9/ST10, `## COMPUTATION`, `## TEXT` T4/T5):
an AXEnabled flip, a new surface, or a changed value / label / counter.

Safety contract honoured here: no press of New Database / Open Database / Open Project /
Save Project / Save Table As / New Data Browser / Save results / Open SQL file(s) /
Save SQL file / Attach Database / Write Changes / Revert Changes / Upload / Refresh /
Clone from Link / Import / Export / Print / Set as NULL / any dock Close or Float /
any window-chrome button.  Dialogs are always closed with their OWN scoped `Cancel`.
"""

import json
import os
import re
import subprocess
import time

import pytest
import rb_testgen_kit as kit

RESULTS_DIR = os.environ.get("RESULTS_DIR", os.path.dirname(os.path.abspath(__file__)))
COUNTER_RE = re.compile(r"^\s*\d+\s*-\s*\d+\s+of\s+\d+\s*$")


def screenshot_assert(test_name, description, results_dir):
    ss_dir = os.path.join(results_dir, "screenshots")
    os.makedirs(ss_dir, exist_ok=True)
    ss_path = os.path.join(ss_dir, f"{test_name}.png")
    try:
        subprocess.run(["screencapture", "-x", ss_path], timeout=5)
    except Exception:
        pass
    assertions_file = os.path.join(ss_dir, "assertions.json")
    assertions = {}
    if os.path.exists(assertions_file):
        try:
            with open(assertions_file) as f:
                assertions = json.load(f)
        except Exception:
            assertions = {}
    assertions[f"{test_name}.png"] = description
    with open(assertions_file, "w") as f:
        json.dump(assertions, f, indent=2)


def _esc(times=1):
    for _ in range(times):
        subprocess.run(["osascript", "-e",
                        'tell application "System Events" to key code 53'],
                       capture_output=True)
        time.sleep(0.3)


def _keystroke(text):
    subprocess.run(["osascript", "-e",
                    'tell application "System Events" to keystroke ' + json.dumps(text)],
                   capture_output=True)


def open_menu(ax, top):
    mb = ax.find(role="menu_bar_item", name=top, max_results=1)
    if not mb:
        return None
    ax.action(mb[0].id, "AXPress")
    time.sleep(0.6)
    m = ax.find(role="menu", root_id=mb[0].id, max_results=1, max_depth=1)
    return m[0] if m else None


def rb_reach_menu_item(ax, top, item_name):
    m = open_menu(ax, top)
    if m is None:
        return False
    for it in ax.find(role="menu_item", root_id=m.id, max_results=80, max_depth=1):
        if (it.name or "") == item_name:
            ok = ax.action(it.id, "AXPress")
            time.sleep(1.4)
            return bool(ok)
    _esc(2)
    return False


def find_window(ax, title_substr):
    for w in ax.find(role="window", max_results=10, max_depth=1):
        if title_substr.lower() in (w.name or "").lower():
            return w
    return None


def rb_enter_inmemory_db(ax):
    """File > New In-Memory Database, then dismiss the auto-opened table dialog."""
    rb_reach_menu_item(ax, "File", "New In-Memory Database")
    w = find_window(ax, "Edit table definition")
    if w is not None:
        c = ax.find(role="button", name="Cancel", root_id=w.id, max_results=2)
        if c:
            ax.action(c[0].id, "AXPress")
            time.sleep(1.0)
    return find_window(ax, "Edit table definition") is None


def switch_tab(ax, name):
    r = ax.find(role="radio", name=name, max_results=1)
    if not r:
        return False
    ok = ax.action(r[0].id, "AXPress")
    time.sleep(1.0)
    return bool(ok)


def find_button(ax, name, root_id=None):
    for b in ax.find(role="button", max_results=90, root_id=root_id):
        if (b.name or "") == name:
            return b
    return None


def enabled(ax, el):
    return bool(ax.get(el.id, ["AXEnabled"]).get("AXEnabled"))


def btn_enabled(ax, name):
    b = find_button(ax, name)
    return None if b is None else enabled(ax, b)


def sql_editor(ax):
    """The QScintilla SQL editor: the only settable text_area that is not the SQL log."""
    for t in ax.find(role="text_area", max_results=15):
        if not ax.is_attribute_settable(t.id, "AXValue"):
            continue
        v = str(ax.get(t.id, ["AXValue"]).get("AXValue") or "")
        if "PRAGMA" in v or "EXECUTING" in v:
            continue
        return t
    return None


def run_sql(ax, sql):
    """Type + execute SQL. set_value is IGNORED by QScintilla -> click + keystroke."""
    switch_tab(ax, "Execute SQL")
    e = sql_editor(ax)
    assert e is not None, "SQL editor not found"
    ax.click_element_cg(e.id)
    time.sleep(0.35)
    subprocess.run(["osascript", "-e",
                    'tell application "System Events" to keystroke "a" using command down'],
                   capture_output=True)
    time.sleep(0.25)
    _keystroke(sql)
    time.sleep(0.5)
    b = find_button(ax, "Execute SQL")
    assert b is not None and enabled(ax, b), "Execute SQL button not enabled"
    ax.action(b.id, "AXPress")
    time.sleep(1.9)


def result_cells(ax):
    cols, cells = [], []
    for t in ax.find(role="table", max_results=10):
        if (t.name or "") == "search result":
            continue
        ch = (ax.tree(max_depth=3, root_id=t.id).get("children") or [])
        c = [x.get("name") for x in ch if x.get("role") == "column"]
        v = [x.get("name") for x in ch if x.get("role") == "label"]
        if c or v:
            cols, cells = c, v
    return cols, cells


def record_counter(ax):
    """Browse Data counter label, e.g. '1 - 3 of 3'. MUST use the regex — a plain
    ' of ' test also matches 'Identification of the cell currently in the editor'."""
    for l in ax.find(role="label", max_results=350):
        v = str(ax.get(l.id, ["AXValue"]).get("AXValue") or "")
        if COUNTER_RE.match(v):
            return v.strip()
    return None


def label_value(ax, needle):
    for l in ax.find(role="label", max_results=350):
        v = str(ax.get(l.id, ["AXValue"]).get("AXValue") or "")
        if needle in v:
            return v
    return None


# ---------------------------------------------------------------------------
# extra locators built on the skeleton (semantic: AXTitle/AXDescription + AXRole,
# scoped by named parent container — never by child index or tree path)
# ---------------------------------------------------------------------------

SQL_SUBTAB_RE = re.compile(r"^SQL\s+\d+$")


def main_window(ax):
    """The main app window, matched on its visible title (never by index)."""
    for w in ax.find(role="window", max_results=10, max_depth=1):
        if (w.name or "").startswith("DB Browser for SQLite"):
            return w
    return None


def reveal_main_window(ax):
    """The app is a regular windowed app (recon REVEAL_STEPS): the main window is already
    on screen at launch. Raise it so window-dependent checks + screenshots see it."""
    w = main_window(ax)
    if w is not None:
        try:
            ax.action(w.id, "AXRaise")
            time.sleep(0.3)
        except Exception:
            pass
    return w


def find_text_field(ax, name, root_id=None, contains=False):
    for t in ax.find(role="text_field", max_results=60, root_id=root_id):
        n = t.name or ""
        if (name in n) if contains else (n == name):
            return t
    return None


def find_checkbox(ax, name, root_id=None, contains=False):
    for c in ax.find(role="checkbox", max_results=60, root_id=root_id):
        n = c.name or ""
        if (name in n) if contains else (n == name):
            return c
    return None


def dialog_ddl_preview(ax, win):
    """The dialog's read-only SQL box: its text_area whose AXValue contains CREATE."""
    for t in ax.find(role="text_area", max_results=10, root_id=win.id):
        v = str(ax.get(t.id, ["AXValue"]).get("AXValue") or "")
        if "CREATE" in v:
            return v
    return None


def sql_log_pane(ax):
    """(element, value) of the SQL Log dock text_area — it holds the PRAGMA trace."""
    for t in ax.find(role="text_area", max_results=15):
        v = str(ax.get(t.id, ["AXValue"]).get("AXValue") or "")
        if "PRAGMA" in v:
            return t, v
    return None, ""


def enabled_map(ax, names):
    return {n: btn_enabled(ax, n) for n in names}


def prove_value(observed, expected):
    """kit.rb_value proof that tolerates dict/str shapes for map-valued observations."""
    try:
        if kit.rb_value(observed, expected):
            return True
    except Exception:
        pass
    return bool(kit.rb_value(json.dumps(observed, sort_keys=True, default=str),
                             json.dumps(expected, sort_keys=True, default=str)))


def close_dialog_with_cancel(ax, win):
    c = ax.find(role="button", name="Cancel", root_id=win.id, max_results=2)
    assert c, "dialog exposes no scoped Cancel button"
    ax.action(c[0].id, "AXPress")
    time.sleep(1.0)


# ---------------------------------------------------------------------------


class TestToolbarButtonStates:
    """B-group 1 — DB toolbar / project toolbar / Database-Structure toolbar buttons."""

    @pytest.mark.rb(
        depth=0, jump_kind="value",
        expect="Write Changes/Revert Changes/Undo/Save Project/Attach Database/Create Table/"
               "Create Index/Modify Table all AXEnabled False on a fresh app while "
               "New Database/Open Database/Open Project are True",
    )
    def test_toolbar_disabled_state_without_database(self, ax):
        w = reveal_main_window(ax)
        assert w is not None, "no main window named 'DB Browser for SQLite' in the AX tree"
        assert (w.name or "") == "DB Browser for SQLite", (
            "a fresh app must have NO database open (recon T2), got title %r" % (w.name,))

        expected = {
            "New Database": True,
            "Open Database": True,
            "Open Project": True,
            "Write Changes": False,
            "Revert Changes": False,
            "Undo": False,
            "Save Project": False,
            "Attach Database": False,
            "Create Table": False,
            "Create Index": False,
            "Modify Table": False,
        }
        observed = enabled_map(ax, list(expected))

        missing = [n for n, v in observed.items() if v is None]
        assert not missing, "toolbar buttons absent from the AX tree: %r" % (missing,)
        assert observed == expected, (
            "fresh-app toolbar AXEnabled map mismatch:\n observed=%r\n expected=%r"
            % (observed, expected))
        assert prove_value(observed, expected)

        screenshot_assert(
            "buttons_toolbar_fresh_state",
            "DB Browser for SQLite main window, no database open. Top toolbar row shows "
            "New Database and Open Database (Open Database has a dropdown chevron) as active "
            "icons, while Write Changes, Revert Changes, Undo, Open Project (active), "
            "Save Project and Attach Database follow — Write Changes, Revert Changes, Undo, "
            "Save Project and Attach Database are greyed out/disabled. Below the toolbar a "
            "4-tab bar reads Database Structure (selected), Browse Data, Edit Pragmas, "
            "Execute SQL, and above the empty schema tree the Create Table, Create Index and "
            "Modify Table buttons are also greyed out. Right side shows the Edit Database Cell "
            "dock with a Mode: dropdown reading Text and the Remote dock; bottom dock tab strip "
            "reads SQL Log, Plot, DB Schema, Remote; status bar bottom-right reads UTF-8.",
            RESULTS_DIR)

    @pytest.mark.rb(
        depth=1, jump_kind="transition",
        expect="button 'Create Table' AXEnabled False->True after File>New In-Memory Database",
    )
    def test_create_table_button_enables_with_database(self, ax):
        reveal_main_window(ax)
        before = btn_enabled(ax, "Create Table")
        assert before is False, "Create Table must start disabled with no DB, got %r" % (before,)

        assert rb_enter_inmemory_db(ax), "in-memory DB did not open (modal still present)"

        after = btn_enabled(ax, "Create Table")
        assert after is True, "Create Table must become enabled once a DB exists, got %r" % (after,)
        assert kit.rb_flip(before, after)

        w = main_window(ax)
        assert w is not None and "In-Memory database" in (w.name or ""), (
            "main window title must gain '- In-Memory database', got %r"
            % (None if w is None else w.name,))

    @pytest.mark.rb(
        depth=1, jump_kind="transition",
        expect="'Create Index' and 'Attach Database' AXEnabled False->True after opening the "
               "in-memory database",
    )
    def test_create_index_and_attach_buttons_enable_with_database(self, ax):
        reveal_main_window(ax)
        before = (btn_enabled(ax, "Create Index"), btn_enabled(ax, "Attach Database"))
        assert before == (False, False), (
            "Create Index / Attach Database must both start disabled, got %r" % (before,))

        assert rb_enter_inmemory_db(ax), "in-memory DB did not open (modal still present)"

        after = (btn_enabled(ax, "Create Index"), btn_enabled(ax, "Attach Database"))
        assert after == (True, True), (
            "Create Index / Attach Database must both be enabled with a DB, got %r" % (after,))
        assert kit.rb_flip(before, after)

    @pytest.mark.rb(
        depth=1, jump_kind="transition",
        expect="Write Changes / Revert Changes AXEnabled False->True after CREATE TABLE via "
               "Execute SQL",
    )
    def test_write_changes_button_enables_after_ddl(self, ax):
        reveal_main_window(ax)
        assert rb_enter_inmemory_db(ax), "in-memory DB did not open (modal still present)"

        before = (btn_enabled(ax, "Write Changes"), btn_enabled(ax, "Revert Changes"))
        assert before == (False, False), (
            "a freshly created DB has no pending changes, so Write/Revert Changes must be "
            "disabled, got %r" % (before,))

        run_sql(ax, "CREATE TABLE t1(a INTEGER, b TEXT);")

        after = (btn_enabled(ax, "Write Changes"), btn_enabled(ax, "Revert Changes"))
        assert after == (True, True), (
            "DDL opens a transaction, so Write/Revert Changes must be enabled, got %r" % (after,))
        assert kit.rb_flip(before, after)
        # never pressed: committing / rolling back destabilises the shared session


class TestStructureToolbarDialogButtons:
    """B-group 1 press effects + B-group 5 dialog buttons."""

    @pytest.mark.rb(
        depth=1, jump_kind="reach",
        expect="window 'Edit table definition' opens with preview CREATE TABLE \"\" ( );",
    )
    def test_create_table_button_opens_edit_table_definition_dialog(self, ax):
        reveal_main_window(ax)
        assert rb_enter_inmemory_db(ax), "in-memory DB did not open (modal still present)"

        before = kit.rb_showing(ax)
        b = find_button(ax, "Create Table")
        assert b is not None and enabled(ax, b), "Create Table button missing or disabled"
        ax.action(b.id, "AXPress")
        time.sleep(1.4)
        after = kit.rb_showing(ax)

        assert kit.rb_reach(before, after, target="window|Edit table definition")

        w = find_window(ax, "Edit table definition")
        assert w is not None, "no window titled 'Edit table definition' after the press"

        preview = dialog_ddl_preview(ax, w)
        assert preview == 'CREATE TABLE "" (\n\n);', (
            "freshly opened dialog DDL preview mismatch: %r" % (preview,))

        dialog_buttons = {
            "Add": True,     # a new field can always be appended
            "Remove": False,  # nothing to remove yet
            "OK": False,      # table has no name yet
            "Cancel": True,
        }
        observed = {}
        for name, _ in dialog_buttons.items():
            el = find_button(ax, name, root_id=w.id)
            observed[name] = None if el is None else enabled(ax, el)
        assert observed == dialog_buttons, (
            "Edit-table-definition button enabled map mismatch:\n observed=%r\n expected=%r"
            % (observed, dialog_buttons))

        screenshot_assert(
            "buttons_create_table_dialog",
            "A modal window titled 'Edit table definition' is open in front of the DB Browser "
            "for SQLite main window. It shows a 'Table' name field (empty), an 'Advanced' "
            "checkbox, an empty field grid whose column headers read Name, Type, NN, PK, AI, U, "
            "Default, Check, Collation, Foreign Key, a column of Add / Remove / Move up / "
            "Move down / Move to top / Move to bottom buttons (only Add is enabled), the tab row "
            "Fields / Index Constraints / Foreign Keys / Check Constraints with Fields selected, "
            "a read-only SQL box showing CREATE TABLE \"\" ( ); and OK (greyed out) plus Cancel "
            "buttons at the bottom.",
            RESULTS_DIR)

        close_dialog_with_cancel(ax, w)
        assert find_window(ax, "Edit table definition") is None, (
            "the dialog's own Cancel button must close 'Edit table definition'")

    @pytest.mark.rb(
        depth=1, jump_kind="reach",
        expect="window 'Edit Index Schema' opens from the Create Index toolbar button",
    )
    def test_create_index_button_opens_edit_index_schema_dialog(self, ax):
        reveal_main_window(ax)
        assert rb_enter_inmemory_db(ax), "in-memory DB did not open (modal still present)"

        before = kit.rb_showing(ax)
        b = find_button(ax, "Create Index")
        assert b is not None and enabled(ax, b), "Create Index button missing or disabled"
        ax.action(b.id, "AXPress")
        time.sleep(1.4)
        after = kit.rb_showing(ax)

        assert kit.rb_reach(before, after, target="window|Edit Index Schema")

        w = find_window(ax, "Edit Index Schema")
        assert w is not None, "no window titled 'Edit Index Schema' after the press"

        name_field = find_text_field(ax, "Name", root_id=w.id)
        unique_box = find_checkbox(ax, "Unique", root_id=w.id)
        partial = find_text_field(ax, "Partial", root_id=w.id, contains=True)
        cancel = ax.find(role="button", name="Cancel", root_id=w.id, max_results=2)
        ok_btn = find_button(ax, "OK", root_id=w.id)

        assert name_field is not None, "Edit Index Schema exposes no text_field 'Name'"
        assert unique_box is not None, "Edit Index Schema exposes no checkbox 'Unique'"
        assert partial is not None, (
            "Edit Index Schema exposes no partial-index-clause text_field")
        assert cancel, "Edit Index Schema exposes no scoped Cancel button"
        assert ok_btn is not None and enabled(ax, ok_btn) is False, (
            "OK must stay disabled while the index is unnamed")

        close_dialog_with_cancel(ax, w)
        assert find_window(ax, "Edit Index Schema") is None, (
            "the dialog's own Cancel button must close 'Edit Index Schema'")

    @pytest.mark.rb(
        depth=2, jump_kind="value",
        expect='preview goes CREATE TABLE "people" ( ) -> adds "Field1" INTEGER -> '
               'adds "Field2" INTEGER',
    )
    def test_dialog_add_button_grows_create_table_preview(self, ax):
        reveal_main_window(ax)
        # surface 1: the in-memory DB (its auto-opened dialog is dismissed by the helper)
        assert rb_enter_inmemory_db(ax), "in-memory DB did not open (modal still present)"

        # surface 2: re-open the table designer through the toolbar button
        b = find_button(ax, "Create Table")
        assert b is not None and enabled(ax, b), "Create Table button missing or disabled"
        ax.action(b.id, "AXPress")
        time.sleep(1.4)
        w = find_window(ax, "Edit table definition")
        assert w is not None, "'Edit table definition' did not re-open"

        table_field = find_text_field(ax, "Table", root_id=w.id)
        assert table_field is not None, "dialog exposes no text_field 'Table'"
        ax.set_value(table_field.id, "people")
        time.sleep(0.5)
        named = dialog_ddl_preview(ax, w)
        assert named == 'CREATE TABLE "people" (\n\n);', (
            "preview after naming the table mismatch: %r" % (named,))

        add = find_button(ax, "Add", root_id=w.id)
        assert add is not None and enabled(ax, add), "dialog 'Add' button missing or disabled"

        ax.action(add.id, "AXPress")
        time.sleep(0.6)
        one_field = dialog_ddl_preview(ax, w)
        assert one_field == 'CREATE TABLE "people" (\n\t"Field1"\tINTEGER\n);', (
            "preview after the first Add mismatch: %r" % (one_field,))

        add = find_button(ax, "Add", root_id=w.id) or add
        ax.action(add.id, "AXPress")
        time.sleep(0.6)
        two_fields = dialog_ddl_preview(ax, w)
        expected = ('CREATE TABLE "people" (\n\t"Field1"\tINTEGER,'
                    '\n\t"Field2"\tINTEGER\n);')
        assert two_fields == expected, (
            "preview after the second Add mismatch: %r" % (two_fields,))
        assert kit.rb_value(two_fields, expected)

        close_dialog_with_cancel(ax, w)
        assert find_window(ax, "Edit table definition") is None, (
            "the dialog's own Cancel button must close 'Edit table definition'")


class TestExecuteSqlButtons:
    """B-group 2 — Execute SQL tab toolbar buttons."""

    @pytest.mark.rb(
        depth=1, jump_kind="value",
        expect="Execute SQL tab, no DB: New tab/Open SQL file(s)/Save SQL file/Find or replace/"
               "Un/comment block/Stop execution True; Execute SQL/Execute line/Save results False",
    )
    def test_execute_sql_buttons_enabled_map_without_database(self, ax):
        reveal_main_window(ax)
        assert switch_tab(ax, "Execute SQL"), "no radio named 'Execute SQL' in the main tab bar"

        expected = {
            "New tab": True,
            "Open SQL file(s)": True,
            "Save SQL file": True,
            "Find or replace": True,
            "Un/comment block": True,
            "Stop execution": True,
            "Execute SQL": False,
            "Execute line": False,
            "Save results": False,
        }
        observed = enabled_map(ax, list(expected))

        missing = [n for n, v in observed.items() if v is None]
        assert not missing, "Execute-SQL toolbar buttons absent from the AX tree: %r" % (missing,)
        assert observed == expected, (
            "Execute-SQL button AXEnabled map (no DB) mismatch:\n observed=%r\n expected=%r"
            % (observed, expected))
        assert prove_value(observed, expected)
        # no file-dialog button was pressed

    @pytest.mark.rb(
        depth=1, jump_kind="reach",
        expect="SQL sub-tab 'SQL 1' created (radio|SQL 1 appears)",
    )
    def test_new_tab_button_creates_sql_sub_tab(self, ax):
        reveal_main_window(ax)
        assert switch_tab(ax, "Execute SQL"), "no radio named 'Execute SQL' in the main tab bar"

        pre = [r.name for r in ax.find(role="radio", max_results=40)
               if SQL_SUBTAB_RE.match(r.name or "")]
        assert pre == [], "no SQL sub-tab may exist before pressing New tab, found %r" % (pre,)

        before = kit.rb_showing(ax)
        b = find_button(ax, "New tab")
        assert b is not None and enabled(ax, b), "New tab button missing or disabled"
        ax.action(b.id, "AXPress")
        time.sleep(1.0)
        after = kit.rb_showing(ax)

        assert kit.rb_reach(before, after, target="radio|SQL 1")

        post = [r.name for r in ax.find(role="radio", max_results=40)
                if SQL_SUBTAB_RE.match(r.name or "")]
        assert post == ["SQL 1"], "expected exactly one sub-tab 'SQL 1', found %r" % (post,)

    @pytest.mark.rb(
        depth=1, jump_kind="value",
        expect="Execute SQL button False->True, and running SELECT 7*6 AS answer; yields "
               "column 'answer' cell '42'",
    )
    def test_execute_sql_button_enables_with_database_and_computes(self, ax):
        reveal_main_window(ax)
        assert switch_tab(ax, "Execute SQL"), "no radio named 'Execute SQL' in the main tab bar"

        before = btn_enabled(ax, "Execute SQL")
        assert before is False, (
            "Execute SQL must be disabled while no database is open, got %r" % (before,))

        assert rb_enter_inmemory_db(ax), "in-memory DB did not open (modal still present)"

        after = btn_enabled(ax, "Execute SQL")
        assert after is True, (
            "Execute SQL must become enabled once a database is open, got %r" % (after,))

        run_sql(ax, "SELECT 7*6 AS answer;")

        cols, cells = result_cells(ax)
        assert cols == ["answer"], "results grid columns mismatch: %r" % (cols,)
        assert kit.rb_value(cells, "42")
        assert "42" in [str(c) for c in cells], "results grid cells mismatch: %r" % (cells,)

        screenshot_assert(
            "buttons_execute_sql_result",
            "DB Browser for SQLite with the in-memory database open and the Execute SQL tab "
            "active. The SQL editor holds the statement SELECT 7*6 AS answer; the Execute "
            "toolbar (green play icon plus Execute line, Stop, open/save SQL, New tab, find and "
            "comment icons) sits above it with Execute now enabled, the results grid below shows "
            "a single column headed 'answer' containing the value 42, and the message pane reads "
            "'Execution finished without errors. Result: 1 rows returned in ...'.",
            RESULTS_DIR)


class TestBrowseDataButtons:
    """B-group 3 — Browse Data tab buttons."""

    def _load_nums(self, ax, rows_sql):
        assert rb_enter_inmemory_db(ax), "in-memory DB did not open (modal still present)"
        run_sql(ax, "CREATE TABLE nums(n INTEGER, label TEXT); "
                    "INSERT INTO nums VALUES" + rows_sql + ";")
        assert switch_tab(ax, "Browse Data"), "no radio named 'Browse Data' in the main tab bar"

    @pytest.mark.rb(
        depth=1, jump_kind="value",
        expect="Browse Data counter '1 - 3 of 3' -> '1 - 4 of 4' after pressing New Record",
    )
    def test_new_record_button_increments_record_counter(self, ax):
        reveal_main_window(ax)
        self._load_nums(ax, "(10,'ten'),(20,'twenty'),(30,'thirty')")

        before = record_counter(ax)
        assert before == "1 - 3 of 3", "record counter before New Record: %r" % (before,)

        b = find_button(ax, "New Record")
        assert b is not None and enabled(ax, b), "New Record button missing or disabled"
        ax.action(b.id, "AXPress")
        time.sleep(1.4)

        after = record_counter(ax)
        assert kit.rb_value(after, "1 - 4 of 4")
        assert after == "1 - 4 of 4", "record counter after New Record: %r" % (after,)

        screenshot_assert(
            "buttons_new_record_counter",
            "DB Browser for SQLite, Browse Data tab active on the in-memory database. A "
            "'Table:' dropdown reads nums, the data grid has columns _rowid_, n, label with the "
            "rows 10/ten, 20/twenty, 30/thirty plus a newly inserted empty row at the bottom, a "
            "'Filter in any column' box sits under the headers, and the record navigation strip "
            "(|< < > >| and Go to:) with the record counter now reads '1 - 4 of 4' after the New "
            "Record button was pressed.",
            RESULTS_DIR)

    @pytest.mark.rb(
        depth=1, jump_kind="transition",
        expect="Clear Filters False->True when a filter is set, and pressing it restores counter "
               "'1 - 3 of 3' and empties the filter",
    )
    def test_clear_filters_button_round_trip(self, ax):
        reveal_main_window(ax)
        self._load_nums(ax, "(10,'ten'),(20,'twenty'),(30,'thirty')")

        assert btn_enabled(ax, "Clear Filters") is False, (
            "Clear Filters must be disabled on a freshly loaded, unfiltered table")
        c0 = record_counter(ax)
        assert c0 == "1 - 3 of 3", "record counter before filtering: %r" % (c0,)

        f = find_text_field(ax, "Filter in any column")
        assert f is not None, "no text_field 'Filter in any column' on the Browse Data tab"
        ax.set_value(f.id, "twenty")
        time.sleep(1.6)

        filtered_enabled = btn_enabled(ax, "Clear Filters")
        c1 = record_counter(ax)
        assert filtered_enabled is True, (
            "Clear Filters must become enabled once a filter is active, got %r"
            % (filtered_enabled,))
        assert c1 == "1 - 1 of 1", "record counter while filtered on 'twenty': %r" % (c1,)
        assert kit.rb_flip((False, c0), (filtered_enabled, c1))

        screenshot_assert(
            "buttons_clear_filters_filtered",
            "DB Browser for SQLite, Browse Data tab on table nums with a filter applied: the "
            "'Filter in any column' box contains the text twenty, the data grid (columns "
            "_rowid_, n, label) shows only ONE visible row 20 / twenty, the record counter reads "
            "'1 - 1 of 1', and the Clear Filters button in the toolbar strip is now enabled "
            "(no longer greyed out).",
            RESULTS_DIR)

        cf = find_button(ax, "Clear Filters")
        assert cf is not None and enabled(ax, cf), "Clear Filters button missing or disabled"
        ax.action(cf.id, "AXPress")
        time.sleep(1.6)

        assert btn_enabled(ax, "Clear Filters") is False, (
            "Clear Filters must disable itself again once no filter remains")
        f2 = find_text_field(ax, "Filter in any column")
        assert f2 is not None, "the filter field disappeared after Clear Filters"
        fv = str(ax.get(f2.id, ["AXValue"]).get("AXValue") or "")
        assert fv == "", "filter field must be emptied by Clear Filters, got %r" % (fv,)
        c2 = record_counter(ax)
        assert c2 == "1 - 3 of 3", "record counter after Clear Filters: %r" % (c2,)

    @pytest.mark.rb(
        depth=1, jump_kind="value",
        expect="|< < > >| Go to: New Record Save Table As New Data Browser enabled and "
               "Clear Filters/Clear Sorting disabled on a freshly loaded table",
    )
    def test_browse_data_navigation_buttons_enabled_with_data(self, ax):
        reveal_main_window(ax)
        self._load_nums(ax, "(10,'ten'),(20,'twenty')")

        expected = {
            "|<": True,
            "<": True,
            ">": True,
            ">|": True,
            "Go to:": True,
            "New Record": True,
            "Save Table As": True,
            "New Data Browser": True,
            "Clear Filters": False,
            "Clear Sorting": False,
        }
        observed = enabled_map(ax, list(expected))

        missing = [n for n, v in observed.items() if v is None]
        assert not missing, "Browse-Data buttons absent from the AX tree: %r" % (missing,)
        assert observed == expected, (
            "Browse-Data button AXEnabled map mismatch:\n observed=%r\n expected=%r"
            % (observed, expected))
        assert prove_value(observed, expected)

        goto = find_text_field(ax, "Enter record number to browse")
        assert goto is not None, "'Go to:' has no paired record-number text_field"
        # Save Table As / New Data Browser were never pressed (they raise dialogs/windows)


class TestDockPanelButtons:
    """B-group 4 — SQL Log / Plot / Remote / Edit-Database-Cell dock buttons."""

    @pytest.mark.rb(
        depth=1, jump_kind="transition",
        expect="SQL Log dock text_area AXValue starts with PRAGMA foreign_keys = '1'; before "
               "Clear and is '' after",
    )
    def test_sql_log_clear_button_empties_the_log(self, ax):
        reveal_main_window(ax)
        assert rb_enter_inmemory_db(ax), "in-memory DB did not open (modal still present)"
        assert switch_tab(ax, "SQL Log"), "no dock radio named 'SQL Log'"

        pane, before_value = sql_log_pane(ax)
        assert pane is not None, "no SQL-log text_area holding the PRAGMA trace"
        assert before_value.startswith("PRAGMA foreign_keys = '1';"), (
            "SQL log must record the connection PRAGMAs, got %r" % (before_value[:120],))

        b = find_button(ax, "Clear")
        assert b is not None and enabled(ax, b), "SQL Log dock 'Clear' button missing or disabled"
        ax.action(b.id, "AXPress")
        time.sleep(0.6)

        after_value = str(ax.get(pane.id, ["AXValue"]).get("AXValue") or "")
        assert after_value == "", "Clear must empty the SQL log, got %r" % (after_value[:120],)
        assert kit.rb_flip(before_value, after_value)

    @pytest.mark.rb(
        depth=0, jump_kind="value",
        expect="Load all data and redraw plot / Save current plot / Upload / Refresh / "
               "Clone from Link / Import / Export / Set as NULL / Print / Apply all "
               "AXEnabled False on a fresh app",
    )
    def test_plot_and_cell_editor_buttons_disabled_without_database(self, ax):
        w = reveal_main_window(ax)
        assert w is not None, "no main window named 'DB Browser for SQLite' in the AX tree"
        assert (w.name or "") == "DB Browser for SQLite", (
            "a fresh app must have NO database open (recon T2), got title %r" % (w.name,))

        names = [
            "Load all data and redraw plot",   # Plot dock
            "Upload", "Refresh", "Clone from Link",   # Remote dock
            "Import", "Export", "Set as NULL", "Print", "Apply",   # Edit Database Cell dock
            "Open in external application", "Open in application",
        ]
        expected = {n: False for n in names}
        observed = enabled_map(ax, names)

        missing = [n for n, v in observed.items() if v is None]
        assert not missing, "dock buttons absent from the AX tree: %r" % (missing,)
        assert observed == expected, (
            "dock buttons must all be disabled with no database:\n observed=%r" % (observed,))
        assert prove_value(observed, expected)

        # the plot-save button carries a literal HTML AXTitle -> substring match, never equality
        plot_save = [b for b in ax.find(role="button", max_results=90)
                     if "Save current plot" in (b.name or "")]
        assert plot_save, "no button whose AXTitle contains 'Save current plot'"
        assert enabled(ax, plot_save[0]) is False, (
            "'Save current plot' must be disabled while there is nothing plotted")
        # none of these buttons were pressed (network / file-dialog / print side effects)