#    Copyright (C) 2025 James Brotosky, Brandon Wickline
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU Affero General Public License as published
#    by the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU Affero General Public License for more details.
#
#    You should have received a copy of the GNU Affero General Public License
#    along with this program.  If not, see <https://www.gnu.org/licenses/>.

import logging

from textual.containers import Horizontal, Vertical
from textual.message import Message
from textual.widget import Widget
from textual.widgets import Button, Footer, Header, Static

logger = logging.getLogger(__name__)


class ResultsDisplay(Widget):
    """Widget for displaying operation results in a two-column layout."""

    CSS = """
    ResultsDisplay {
        height: 100%;
    }

    #results_screen {
        height: 100%;
    }

    #results_title {
        text-align: center;
        margin: 1 0;
        text-style: bold;
    }

    #results_layout {
        height: 1fr;
        margin: 1 0;
    }

    #left_column, #right_column {
        width: 1fr;
        height: 100%;
        border: solid green;
        padding: 1;
    }

    #right_column {
        border: solid red;
    }

    #success_label, #failure_label {
        text-style: bold;
        margin-bottom: 1;
    }

    #success_results, #failure_results {
        height: 1fr;
        overflow-y: auto;
        background: $surface;
        border: round $primary;
        padding: 1;
    }

    .copy_button {
        margin-top: 1;
        width: 100%;
    }
    """

    class CopySuccess(Message):
        """Posted when success results are copied."""

        pass

    class CopyFailure(Message):
        """Posted when failure results are copied."""

        pass

    class GoBack(Message):
        """Posted when back button is pressed."""

        pass

    def __init__(
        self, operation: str, successful_results: str, unsuccessful_results: str
    ) -> None:
        super().__init__()
        self.operation = operation
        self.successful_results = successful_results
        self.unsuccessful_results = unsuccessful_results

    def compose(self):
        with Vertical(id="results_screen"):
            yield Header(show_clock=True, icon="⚙️")
            # Title
            title = Static(f"{self.operation} - Results", id="results_title")
            yield title

            # Two-column layout
            with Horizontal(id="results_layout"):
                # Left Column - Success
                with Vertical(id="left_column"):
                    yield Static("✅ Successful", id="success_label")
                    yield Static(self.successful_results, id="success_results")
                    yield Button(
                        "Copy Success List",
                        id="copy_success",
                        classes="copy_button",
                    )

                # Right Column - Failure
                with Vertical(id="right_column"):
                    yield Static("❌ Failed", id="failure_label")
                    yield Static(self.unsuccessful_results, id="failure_results")
                    yield Button(
                        "Copy Failure List",
                        id="copy_failure",
                        classes="copy_button",
                    )

            yield Footer()

    def on_button_pressed(self, event: Button.Pressed) -> None:
        btn_id = event.button.id

        if btn_id == "copy_success":
            success_widget = self.query_one("#success_results", Static)
            try:
                import pyperclip

                pyperclip.copy(str(success_widget.renderable))
                self.app.notify(
                    "Success list copied to clipboard!",
                    severity="information",
                    timeout=2,
                )
                self.post_message(self.CopySuccess())
            except ImportError:
                self.app.notify(
                    "❌ pyperclip not installed. Run: pip install pyperclip",
                    severity="warning",
                )
            except Exception as e:
                self.app.notify(f"¢ Failed to copy: {str(e)}", severity="error")
            event.stop()

        elif btn_id == "copy_failure":
            failure_widget = self.query_one("#failure_results", Static)
            try:
                import pyperclip

                pyperclip.copy(str(failure_widget.renderable))
                self.app.notify(
                    "Failure list copied to clipboard!",
                    severity="information",
                    timeout=2,
                )
                self.post_message(self.CopyFailure())
            except ImportError:
                self.app.notify(
                    "❌ pyperclip not installed. Run: pip install pyperclip",
                    severity="warning",
                )
            except Exception as e:
                self.app.notify(f"❌ Failed to copy: {str(e)}", severity="error")
            event.stop()