#!/usr/bin/env python3
"""TEXT lane — EasyNotes (Kotlin/Compose note app).

This lane owns CONTENT / OUTPUT text and is the SOLE owner of exact-string
equality: strings an interaction PRODUCES (empty/no-match placeholders, the card
that reflects a typed title/body, status/label strings on surfaces you open) and
opaque rendered cores (markdown that renders to a surface the view tree cannot
give as a formatted string).

Every test drives the app through the user path, reads the produced string out of
a FRESH ui(), and asserts it. Discriminating tests assert ABSENT-before /
PRESENT-after where the string is produced by a trigger.

Package comes ONLY from argv[1]; no literal package/coordinate/serial appears here.
"""
import os
import re
import sys

sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
from android_testgen_kit import *          # noqa: F403,E402


# ── local helpers ────────────────────────────────────────────────────────────

def all_text(nodes):
    """All visible `text` values joined — for substring/normalised comparison."""
    return " | ".join(n.get("text", "") for n in nodes if n.get("text"))


def all_desc(nodes):
    """All content-desc values joined — for content-desc string assertions."""
    return " | ".join(n.get("content-desc", "") for n in nodes if n.get("content-desc"))


def unescape_entities(s):
    """The kit's XML parser does NOT decode HTML entities, so a label whose visible
    text is 'Colors & Styles' arrives as the literal 'Colors & Styles'.
    Normalise both sides before an exact-string comparison so the entity never
    causes a false failure."""
    return (s.replace("&amp;", "&").replace("&lt;", "<").replace("&gt;", ">")
             .replace("&apos;", "'").replace("&quot;", '"'))


def norm(s):
    """Entity-decode + strip + casefold — a faithful recreation may differ in case
    but not in the words."""
    return unescape_entities(s).strip().casefold()


def contains_text(nodes, needle):
    """True iff any node's (entity-decoded) text contains `needle`, case-insensitive."""
    n = norm(needle)
    return any(n in norm(x) for x in (nd.get("text", "") for nd in nodes) if x)


def contains_desc(nodes, needle):
    n = norm(needle)
    return any(n in norm(x) for x in (nd.get("content-desc", "") for nd in nodes) if x)


def edittexts_by_y(nodes):
    """The Edit page has two unlabelled EditTexts (Name on top, Description below);
    document order is not reliable, so order by y."""
    return sorted(find_by_class(nodes, "EditText"),
                  key=lambda n: n.get("_bounds", (0, 0, 0, 0))[1])


def open_home():
    """Fresh Home with app data intact."""
    restart_app()
    wait_for_foreground()
    settle("launch")


def open_empty_home():
    """Fresh Home with NO notes (empty DB)."""
    clear_data()
    launch_app()
    wait_for_foreground()
    settle("launch")


def create_note(title, body):
    """Create a note through the GUI (New Note FAB → Name → Description → Done).
    Returns True if it left the Edit surface back to Home."""
    fab = find_node(ui(), content_desc="New Note")
    if not tap_node(fab):
        return False
    settle("tap")
    fields = edittexts_by_y(ui())
    if not fields:
        return False
    if title:
        type_text(fields[0], title)
        settle("text")
    if body:
        fields = edittexts_by_y(ui())
        if len(fields) > 1:
            type_text(fields[1], body)
            settle("text")
    done = find_node(ui(), content_desc="Done")
    if not tap_node(done):
        return False
    settle("tap")
    return True


# ── depth-family helpers (name-backed so a declared depth>=1 is honest) ────────

def and_enter_settings():
    """Home → Settings gear. Counts one surface."""
    n = find_node(ui(), content_desc="Settings")
    ok = and_reach_surface(n, "Support", "New Note") if n else False
    if not ok and n:                      # fall back to a generic surface change
        before = and_showing()
        tap_node(n)
        if surface_changed(before, and_showing()):
            and_enter("Settings")
            ok = True
    return ok


def and_enter_about():
    """(assumes on Settings) Settings → About. Counts one surface."""
    n = find_node_ci(ui(), "About") or scroll_into_view("About")
    if not n:
        return False
    before = and_showing()
    tap_node(n)
    if surface_changed(before, and_showing()):
        and_enter("About")
        return True
    return False


def and_enter_preview(title):
    """Home → open a note card (opens on the Preview page). Counts one surface."""
    n = find_node(ui(), text=title)
    if not n:
        return False
    before = and_showing()
    tap(n["_center"][0], n["_center"][1])
    settle("tap")
    if surface_changed(before, and_showing()):
        and_enter("Preview")
        return True
    return False


def and_enter_more_menu():
    """(assumes on Preview) tap Info (⋮) → More dropdown. Counts one surface."""
    n = find_node(ui(), content_desc="Info")
    if not n:
        return False
    before = and_showing()
    tap_node(n)
    settle("tap")
    if surface_changed(before, and_showing()):
        and_enter("More")
        return True
    return False


def and_reach_note_info():
    """(assumes More dropdown open) tap Information → Note Info bottom sheet."""
    n = find_node_ci(ui(), "Information")
    if not n:
        return False
    return and_reach_surface(n, "Created Time", "Copy")


# ══════════════════════════════════════════════════════════════════════════════
# Placeholder strings produced by empty / no-match states
# ══════════════════════════════════════════════════════════════════════════════

@and_test(expects=("text_empty_home_placeholder",))
def test_empty_home_placeholder():
    open_empty_home()
    nodes = ui()
    got = contains_text(nodes, "No created notes.")
    record("text_empty_home_placeholder", got,
           "" if got else "behavior_wrong: empty Home did not show the "
           "placeholder 'No created notes.' — got text=%r" % all_text(nodes),
           depth=0, jump_kind="value", expect="No created notes.")


@and_test(expects=("text_search_no_match",))
def test_search_no_match():
    open_empty_home()
    if not create_note("Groceries", "Milk"):
        record("text_search_no_match", False,
               "setup_failed: could not create a note to search over",
               depth=0, jump_kind="value", expect="No notes found.")
        return
    # Trigger: type a query that matches nothing.
    before = contains_text(ui(), "No notes found.")
    stext = find_node(ui(), text="Search") or find_node(ui(), content_desc="Search")
    if not tap_node(stext):
        record("text_search_no_match", False,
               "setup_failed: could not focus the search bar",
               depth=0, jump_kind="value", expect="No notes found.")
        return
    settle("tap")
    field = find_by_class(ui(), "EditText")
    if not field:
        record("text_search_no_match", False,
               "setup_failed: search bar did not become an editable field",
               depth=0, jump_kind="value", expect="No notes found.")
        return
    type_text(field[0], "zzqqxx", verify_focus=False)
    settle("text")
    after = contains_text(ui(), "No notes found.")
    ok = (not before) and after
    record("text_search_no_match", ok,
           "" if ok else "behavior_wrong: gibberish query did not produce the "
           "'No notes found.' placeholder (before=%s after=%s)" % (before, after),
           depth=0, jump_kind="value", expect="No notes found.")


@and_test(expects=("text_empty_note_discard_placeholder",))
def test_empty_note_discard_placeholder():
    # An empty note (no title, no body) is discarded on leave -> the produced
    # string after this no-op create is still the empty placeholder. The trigger
    # dips into Edit and back, but the OBSERVATION is read on Home, so depth=0.
    open_empty_home()
    if not create_note("", ""):
        record("text_empty_note_discard_placeholder", False,
               "setup_failed: could not open/leave a new empty note",
               depth=0, jump_kind="value", expect="No created notes.")
        return
    nodes = ui()
    ok = contains_text(nodes, "No created notes.")
    record("text_empty_note_discard_placeholder", ok,
           "" if ok else "behavior_wrong: after discarding an empty note the Home "
           "placeholder 'No created notes.' was absent — got %r" % all_text(nodes),
           depth=0, jump_kind="value", expect="No created notes.")


# ══════════════════════════════════════════════════════════════════════════════
# The card content an ACTION produced — exact title / body strings
# ══════════════════════════════════════════════════════════════════════════════

@and_test(expects=("text_card_title",))
def test_card_title_reflects_typed_title():
    open_empty_home()
    absent = contains_text(ui(), "GroceryList")
    if not create_note("GroceryList", "Milk and eggs"):
        record("text_card_title", False,
               "setup_failed: could not create the note",
               depth=0, jump_kind="value", expect="GroceryList")
        return
    nodes = ui()
    # exact title string on the produced card
    title_node = find_node(nodes, text="GroceryList")
    ok = (not absent) and title_node is not None
    record("text_card_title", ok,
           "" if ok else "behavior_wrong: produced card title != 'GroceryList' "
           "(got text=%r)" % all_text(nodes),
           depth=0, jump_kind="value", expect="GroceryList")


@and_test(expects=("text_card_body_preview",))
def test_card_body_reflects_typed_body():
    open_empty_home()
    if not create_note("GroceryList", "Milk and eggs"):
        record("text_card_body_preview", False,
               "setup_failed: could not create the note",
               depth=0, jump_kind="value", expect="Milk and eggs")
        return
    nodes = ui()
    ok = contains_text(nodes, "Milk and eggs")
    record("text_card_body_preview", ok,
           "" if ok else "behavior_wrong: card body preview did not contain the "
           "typed body 'Milk and eggs' — got %r" % all_text(nodes),
           depth=0, jump_kind="value", expect="Milk and eggs")


@and_test(expects=("text_home_card_strips_markdown",))
def test_home_card_body_strips_markdown():
    # A body of "# Heading" renders on the Home card preview as "Heading" (the '#'
    # marker stripped) — a produced, markdown-rendered string.
    open_empty_home()
    if not create_note("MdCard", "# Heading"):
        record("text_home_card_strips_markdown", False,
               "setup_failed: could not create the markdown note",
               depth=0, jump_kind="value", expect="Heading (no '#')")
        return
    nodes = ui()
    has_heading = contains_text(nodes, "Heading")
    # the raw '#Heading'/'# Heading' marker must NOT survive in the preview text
    raw_hash = any("#" in (n.get("text", "")) for n in nodes)
    ok = has_heading and not raw_hash
    record("text_home_card_strips_markdown", ok,
           "" if ok else "behavior_wrong: Home card did not render '# Heading' as "
           "'Heading' without the '#' (has_heading=%s raw_hash=%s text=%r)"
           % (has_heading, raw_hash, all_text(nodes)),
           depth=0, jump_kind="value", expect="Heading (no '#')")


# ══════════════════════════════════════════════════════════════════════════════
# content-desc strings PRODUCED on a state change (focus Description)
# ══════════════════════════════════════════════════════════════════════════════

@and_test(expects=("text_desc_focus_toolbar_descs",))
def test_desc_focus_shows_markdown_toolbar_descs():
    # Trigger: focus the Description field -> the markdown toolbar appears with the
    # content-desc strings "Bullet List", "Checkbox", "Insert Image".
    open_home()
    fab = find_node(ui(), content_desc="New Note")
    if not tap_node(fab):
        record("text_desc_focus_toolbar_descs", False,
               "setup_failed: New Note FAB not tappable",
               depth=1, jump_kind="value", expect="Checkbox, Insert Image")
        return
    settle("tap")
    before_desc = all_desc(ui())
    absent = ("Checkbox" not in before_desc) and ("Insert Image" not in before_desc)
    fields = edittexts_by_y(ui())
    if len(fields) < 2:
        record("text_desc_focus_toolbar_descs", False,
               "setup_failed: no Description field on the Edit surface",
               depth=1, jump_kind="value", expect="Checkbox, Insert Image")
        return
    and_enter("markdown toolbar")          # focusing Desc reveals the toolbar surface
    tap_node(fields[1])
    settle("keyboard")
    nodes = ui()
    present = contains_desc(nodes, "Checkbox") and contains_desc(nodes, "Insert Image")
    ok = absent and present
    record("text_desc_focus_toolbar_descs", ok,
           "" if ok else "behavior_wrong: focusing Description did not reveal the "
           "toolbar content-descs 'Checkbox'/'Insert Image' (absent=%s present=%s "
           "desc=%r)" % (absent, present, all_desc(nodes)),
           depth=1, jump_kind="value", expect="Checkbox, Insert Image")


@and_test(expects=("text_desc_focus_undo_redo_descs",))
def test_desc_focus_shows_undo_redo_descs():
    # Trigger: focus Description -> "Undo" and "Redo" content-desc appear in the top bar.
    open_home()
    fab = find_node(ui(), content_desc="New Note")
    if not tap_node(fab):
        record("text_desc_focus_undo_redo_descs", False,
               "setup_failed: New Note FAB not tappable",
               depth=1, jump_kind="value", expect="Undo, Redo")
        return
    settle("tap")
    before_desc = all_desc(ui())
    absent = ("Undo" not in before_desc) and ("Redo" not in before_desc)
    fields = edittexts_by_y(ui())
    if len(fields) < 2:
        record("text_desc_focus_undo_redo_descs", False,
               "setup_failed: no Description field on the Edit surface",
               depth=1, jump_kind="value", expect="Undo, Redo")
        return
    and_enter("edit-with-undo-redo")
    tap_node(fields[1])
    settle("keyboard")
    nodes = ui()
    present = contains_desc(nodes, "Undo") and contains_desc(nodes, "Redo")
    ok = absent and present
    record("text_desc_focus_undo_redo_descs", ok,
           "" if ok else "behavior_wrong: focusing Description did not reveal the "
           "'Undo'/'Redo' content-descs (absent=%s present=%s desc=%r)"
           % (absent, present, all_desc(nodes)),
           depth=1, jump_kind="value", expect="Undo, Redo")


# ══════════════════════════════════════════════════════════════════════════════
# Settings section label strings (depth 1)
# ══════════════════════════════════════════════════════════════════════════════

@and_test(expects=("text_settings_section_labels",))
def test_settings_section_labels():
    open_home()
    if not and_enter_settings():
        record("text_settings_section_labels", False,
               "setup_failed: could not reach the Settings surface",
               depth=1, jump_kind="value",
               expect="Colors & Styles, Behavior, Language, Backup")
        return
    nodes = ui()
    # exact section strings; "Colors & Styles" arrives entity-encoded -> normalise
    wanted = ["Colors & Styles", "Behavior", "Language", "Backup",
              "Privacy", "Tools", "About"]
    missing = [w for w in wanted if not contains_text(nodes, w)]
    ok = not missing
    record("text_settings_section_labels", ok,
           "" if ok else "behavior_wrong: Settings missing section label(s) %r "
           "— got text=%r" % (missing, all_text(nodes)),
           depth=1, jump_kind="value",
           expect="Colors & Styles, Behavior, Language, Backup, Privacy, Tools, About")


# ══════════════════════════════════════════════════════════════════════════════
# About label strings (depth 2) — assert the LABELS, not the version VALUE
# ══════════════════════════════════════════════════════════════════════════════

@and_test(expects=("text_about_labels",))
def test_about_labels():
    open_home()
    if not and_enter_settings():
        record("text_about_labels", False,
               "setup_failed: could not reach Settings",
               depth=2, jump_kind="value", expect="Version, Build Type")
        return
    if not and_enter_about():
        record("text_about_labels", False,
               "setup_failed: could not reach the About surface",
               depth=2, jump_kind="value", expect="Version, Build Type")
        return
    nodes = ui()
    # Assert the produced LABEL strings only — a recreation cannot know the value
    # "1.7-fdroid", so asserting it would be unfair rather than discriminating.
    has_version = contains_text(nodes, "Version")
    has_build = contains_text(nodes, "Build Type")
    ok = has_version and has_build
    record("text_about_labels", ok,
           "" if ok else "behavior_wrong: About missing label(s) "
           "'Version'/'Build Type' (version=%s build=%s text=%r)"
           % (has_version, has_build, all_text(nodes)),
           depth=2, jump_kind="value", expect="Version, Build Type")


# ══════════════════════════════════════════════════════════════════════════════
# More dropdown label strings (depth 2)
# ══════════════════════════════════════════════════════════════════════════════

@and_test(expects=("text_more_menu_labels",))
def test_more_menu_labels():
    open_empty_home()
    if not create_note("MenuNote", "some body text"):
        record("text_more_menu_labels", False,
               "setup_failed: could not create a note to open",
               depth=2, jump_kind="value", expect="Pinned, Copy, Information")
        return
    if not and_enter_preview("MenuNote"):
        record("text_more_menu_labels", False,
               "setup_failed: could not open the note Preview",
               depth=2, jump_kind="value", expect="Pinned, Copy, Information")
        return
    if not and_enter_more_menu():
        record("text_more_menu_labels", False,
               "setup_failed: could not open the More (Info) dropdown",
               depth=2, jump_kind="value", expect="Pinned, Copy, Information")
        return
    nodes = ui()
    # exact non-destructive menu label strings the dropdown produced
    wanted = ["Pinned", "Copy", "Information"]
    missing = [w for w in wanted if not contains_text(nodes, w)]
    ok = not missing
    record("text_more_menu_labels", ok,
           "" if ok else "behavior_wrong: More dropdown missing label(s) %r — "
           "got text=%r" % (missing, all_text(nodes)),
           depth=2, jump_kind="value", expect="Pinned, Copy, Information")


# ══════════════════════════════════════════════════════════════════════════════
# Note Info modal label strings + Created Time FORMAT (depth 3)
# ══════════════════════════════════════════════════════════════════════════════

@and_test(expects=("text_note_info_labels",))
def test_note_info_labels():
    open_empty_home()
    if not create_note("InfoNote", "Milk Eggs Bread"):
        record("text_note_info_labels", False,
               "setup_failed: could not create the note",
               depth=3, jump_kind="value", expect="Created Time, Words, Characters")
        return
    if not and_enter_preview("InfoNote"):
        record("text_note_info_labels", False,
               "setup_failed: could not open Preview",
               depth=3, jump_kind="value", expect="Created Time, Words, Characters")
        return
    if not and_enter_more_menu():
        record("text_note_info_labels", False,
               "setup_failed: could not open the More dropdown",
               depth=3, jump_kind="value", expect="Created Time, Words, Characters")
        return
    if not and_reach_note_info():
        record("text_note_info_labels", False,
               "setup_failed: could not open the Note Info modal",
               depth=3, jump_kind="value", expect="Created Time, Words, Characters")
        return
    nodes = ui()
    wanted = ["Created Time", "Words", "Characters"]
    missing = [w for w in wanted if not contains_text(nodes, w)]
    ok = not missing
    record("text_note_info_labels", ok,
           "" if ok else "behavior_wrong: Note Info modal missing label(s) %r — "
           "got text=%r" % (missing, all_text(nodes)),
           depth=3, jump_kind="value", expect="Created Time, Words, Characters")


@and_test(expects=("text_note_info_created_time_format",))
def test_note_info_created_time_format():
    open_empty_home()
    if not create_note("TimeNote", "hello world"):
        record("text_note_info_created_time_format", False,
               "setup_failed: could not create the note",
               depth=3, jump_kind="value", expect="Created Time = yyyy-MM-dd HH:mm:ss")
        return
    if not (and_enter_preview("TimeNote") and and_enter_more_menu()
            and and_reach_note_info()):
        record("text_note_info_created_time_format", False,
               "setup_failed: could not reach the Note Info modal",
               depth=3, jump_kind="value", expect="Created Time = yyyy-MM-dd HH:mm:ss")
        return
    nodes = ui()
    # The Created Time VALUE is a produced dynamic string; assert its SHAPE
    # (yyyy-MM-dd HH:mm:ss), not any specific timestamp.
    pat = re.compile(r"\b\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\b")
    matched = any(pat.search(n.get("text", "")) for n in nodes)
    record("text_note_info_created_time_format", matched,
           "" if matched else "behavior_wrong: Created Time value did not match the "
           "'yyyy-MM-dd HH:mm:ss' format — got text=%r" % all_text(nodes),
           depth=3, jump_kind="value", expect="Created Time = yyyy-MM-dd HH:mm:ss")


# ══════════════════════════════════════════════════════════════════════════════
# Markdown render — the '#' marker is stripped in Preview (dump-readable RULE side)
# ══════════════════════════════════════════════════════════════════════════════

@and_test(expects=("text_preview_heading_stripped",))
def test_preview_heading_marker_stripped():
    open_empty_home()
    if not create_note("MdNote", "# Heading"):
        record("text_preview_heading_stripped", False,
               "setup_failed: could not create the markdown note",
               depth=1, jump_kind="value", expect="Heading (no '#')")
        return
    if not and_enter_preview("MdNote"):
        record("text_preview_heading_stripped", False,
               "setup_failed: could not open Preview",
               depth=1, jump_kind="value", expect="Heading (no '#')")
        return
    nodes = ui()
    has_heading = contains_text(nodes, "Heading")
    raw_hash = any("#" in (n.get("text", "")) for n in nodes)
    ok = has_heading and not raw_hash
    record("text_preview_heading_stripped", ok,
           "" if ok else "behavior_wrong: Preview did not render '# Heading' as "
           "'Heading' without the '#' (has_heading=%s raw_hash=%s text=%r)"
           % (has_heading, raw_hash, all_text(nodes)),
           depth=1, jump_kind="value", expect="Heading (no '#')")


# ══════════════════════════════════════════════════════════════════════════════
# VLM (budget = 2) — rendered visual properties markdown produces that the view
# tree cannot expose: the HEADING is enlarged, and a **bold** span is heavier.
# ══════════════════════════════════════════════════════════════════════════════

@and_test(expects=("text_preview_heading_render_vlm",))
def test_preview_heading_render_vlm():
    open_empty_home()
    if not create_note("HeadNote", "# Heading"):
        record("text_preview_heading_render_vlm", False,
               "setup_failed: could not create the markdown note",
               depth=1, jump_kind="value", tag="size")
        return
    if not and_enter_preview("HeadNote"):
        record("text_preview_heading_render_vlm", False,
               "setup_failed: could not open Preview",
               depth=1, jump_kind="value", tag="size")
        return
    # The text 'Heading' is in the tree but its rendered SIZE (heading vs body) is
    # not — that rendered property is the VLM's job.
    vlm_assert("text_preview_heading_render",
               "Is the word 'Heading' shown as a large heading, clearly bigger "
               "than normal body text, with NO '#' hash character visible before "
               "it?", RESULTS_DIR, depth=1, jump_kind="value", tag="size")


@and_test(expects=("text_preview_bold_render_vlm",))
def test_preview_bold_render_vlm():
    open_empty_home()
    if not create_note("BoldNote", "word **strongword** end"):
        record("text_preview_bold_render_vlm", False,
               "setup_failed: could not create the markdown note",
               depth=1, jump_kind="value", tag="shape")
        return
    if not and_enter_preview("BoldNote"):
        record("text_preview_bold_render_vlm", False,
               "setup_failed: could not open Preview",
               depth=1, jump_kind="value", tag="shape")
        return
    # The '**' markers are stripped in the tree (text reads 'word strongword end'),
    # but the tree cannot say 'strongword' is BOLD — a rendered font-weight property.
    vlm_assert("text_preview_bold_render",
               "In the note body, is the single word 'strongword' shown in bold "
               "(noticeably thicker/heavier) while the surrounding words 'word' and "
               "'end' are in normal weight, with no '*' asterisk characters "
               "visible?", RESULTS_DIR, depth=1, jump_kind="value", tag="shape")


TESTS = [
    test_empty_home_placeholder,
    test_search_no_match,
    test_empty_note_discard_placeholder,
    test_card_title_reflects_typed_title,
    test_card_body_reflects_typed_body,
    test_home_card_body_strips_markdown,
    test_desc_focus_shows_markdown_toolbar_descs,
    test_desc_focus_shows_undo_redo_descs,
    test_settings_section_labels,
    test_about_labels,
    test_more_menu_labels,
    test_note_info_labels,
    test_note_info_created_time_format,
    test_preview_heading_marker_stripped,
    test_preview_heading_render_vlm,
    test_preview_bold_render_vlm,
]


if __name__ == "__main__":
    if not device_online():
        print("Device not reachable — the tunnel may have dropped.")
    run_suite(TESTS, "text")