"""Bottom-line UI: prompts for message count/offset/prompt, runs the
summarization, and shows the result. Deliberately plain — no bottom sheets,
sliders, or styling copied from any other plugin.
"""
from typing import Any, Callable

from android.widget import LinearLayout, TextView
from org.telegram.messenger import AndroidUtilities
from org.telegram.ui.Components import EditTextBoldCursor

import diagnostics
from ui.alert import AlertDialogBuilder
from ui.bulletin import BulletinHelper
from ui.theme import DialogColors
from config import (
    DEFAULT_MSG_COUNT,
    DEFAULT_MSG_OFFSET,
    MAX_MSG_COUNT,
    MIN_MSG_COUNT,
)


def _dp(value: int) -> int:
    return AndroidUtilities.dp(value)


def _match_wrap_params() -> Any:
    """LinearLayout.LayoutParams(MATCH_PARENT, WRAP_CONTENT).

    Uses plain ints (-1 / -2, the real values behind
    ViewGroup.LayoutParams.MATCH_PARENT/WRAP_CONTENT) instead of
    org.telegram.ui.Components.LayoutHelper: on this device/SDK build,
    Chaquopy raises AttributeError resolving LayoutHelper.MATCH_PARENT even
    though the Java field exists, while WRAP_CONTENT alone was not enough
    to prove the whole class is reachable. Plain LinearLayout.LayoutParams
    sidesteps that static-field lookup entirely.
    """
    return LinearLayout.LayoutParams(-1, -2)


def _make_label(activity, text: str, colors: DialogColors) -> TextView:
    label = TextView(activity)
    label.setText(text)
    label.setTextSize(14)
    label.setPadding(0, _dp(12), 0, _dp(4))
    label.setTextColor(colors.secondary_text)
    return label


def _make_edit_text(activity, hint: str, initial: str, colors: DialogColors) -> Any:
    field = EditTextBoldCursor(activity)
    field.setHint(hint)
    field.setText(initial)
    field.setSingleLine(True)
    field.setTextColor(colors.input_text)
    field.setHintTextColor(colors.hint_text)
    field.setLineColors(colors.input_line, colors.input_line_active, colors.input_line_active)
    field.setCursorColor(colors.cursor)
    return field


def show_summarize_dialog(
    activity: Any,
    fragment: Any,
    default_count: int,
    default_offset: int,
    default_prompt: str,
    on_submit: Callable[[int, int, str], None],
) -> None:
    """Shows a dialog collecting message count, offset, and prompt, then
    invokes on_submit(count, offset, prompt) if the user confirms.
    """
    colors = DialogColors()
    root = LinearLayout(activity)
    root.setOrientation(LinearLayout.VERTICAL)
    root.setPadding(_dp(24), _dp(8), _dp(24), _dp(8))
    root.setBackgroundColor(colors.background)

    count_label = _make_label(activity, "Messages to summarize (1-1000)", colors)
    root.addView(count_label)
    count_field = _make_edit_text(
        activity, "e.g. 100", str(max(MIN_MSG_COUNT, min(MAX_MSG_COUNT, default_count))), colors
    )
    root.addView(count_field, _match_wrap_params())

    offset_label = _make_label(activity, "Offset from newest message", colors)
    root.addView(offset_label)
    offset_field = _make_edit_text(activity, "e.g. 0", str(max(0, default_offset)), colors)
    root.addView(offset_field, _match_wrap_params())

    prompt_label = _make_label(activity, "Prompt (saved for this chat/topic)", colors)
    root.addView(prompt_label)
    prompt_field = _make_edit_text(activity, "Summarize this conversation…", default_prompt, colors)
    prompt_field.setSingleLine(False)
    prompt_field.setMinLines(2)
    prompt_field.setMaxLines(5)
    root.addView(prompt_field, _match_wrap_params())

    builder = AlertDialogBuilder(activity)
    builder.set_title("Summarize Chat")
    builder.set_view(root)

    def on_positive(bld, which):
        try:
            count = int(str(count_field.getText()).strip() or DEFAULT_MSG_COUNT)
        except ValueError:
            count = DEFAULT_MSG_COUNT
        try:
            offset = int(str(offset_field.getText()).strip() or DEFAULT_MSG_OFFSET)
        except ValueError:
            offset = DEFAULT_MSG_OFFSET
        count = max(MIN_MSG_COUNT, min(MAX_MSG_COUNT, count))
        offset = max(0, offset)
        prompt = str(prompt_field.getText()).strip()
        bld.dismiss()
        try:
            on_submit(count, offset, prompt)
        except Exception as exc:
            diagnostics.record_error("summarize_dialog.on_submit", exc)
            BulletinHelper.show_error(f"Summarize failed to start: {exc}", fragment)

    def on_negative(bld, which):
        bld.dismiss()

    builder.set_positive_button("Summarize", on_positive)
    builder.set_negative_button("Cancel", on_negative)
    builder.show()