from textual.app import ComposeResult
from textual.binding import Binding
from textual.widgets import DataTable

import imdb
import media
from tui.content_pane import ContentPane
from tui.dialogs import ConfirmDialog, FormDialog, FormField


class MediaPane(ContentPane):
    BINDINGS = [
        Binding("a", "add", "Add"),
        Binding("e", "rate", "Rate"),
        Binding("d", "delete", "Delete"),
        Binding("r", "reload", "Reload"),
    ]

    content_file = "about.json"

    def __init__(self, kind: str, **kwargs):
        super().__init__(**kwargs)
        self.kind = kind
        self.label = media.MEDIA_KINDS[kind]["label"]
        self.border_subtitle = media.MEDIA_KINDS[kind]["key"]

    def compose(self) -> ComposeResult:
        yield DataTable(cursor_type="row", zebra_stripes=True)

    def on_mount(self):
        table = self.table()
        table.add_column("Rating", key="rating")
        table.add_column("Title", key="title")
        table.add_column("IMDb", key="imdb")
        self.reload()

    def reload(self, focus_key: str | None = None):
        table = self.table()
        table.clear()
        for item in media.list_items(self.kind):
            identifier = imdb.imdb_id(item.get("url", "")) or item.get("name", "")
            table.add_row(f"{item.get('rating', '?')}/10", item.get("name", ""), identifier, key=identifier)
        self.restore_cursor(focus_key)

    def action_add(self):
        fields = [
            FormField("link", "IMDb link or ID", placeholder="https://www.imdb.com/title/tt0816692/", required=True),
            FormField("rating", "Your rating (0 to 10)", kind="rating", required=True),
            FormField("name", "Name (looked up on OMDb when empty)"),
        ]
        self.app.push_screen(FormDialog(f"Add a {self.label}", fields, "Add"), self.add_item)

    def add_item(self, values: dict | None):
        if not values:
            return
        identifier = imdb.imdb_id(values["link"])

        def added(item: dict):
            self.reload(identifier)
            self.notify(f"Added {item['name']} ({item['rating']}/10)")

        self.run_in_background(
            f"Adding {identifier or values['link']}...",
            lambda: media.add_item(self.kind, values["link"], values["rating"], values["name"]),
            added,
        )

    def action_rate(self):
        identifier = self.selected_key()
        if not identifier:
            return
        current = next((item for item in media.list_items(self.kind) if imdb.imdb_id(item.get("url", "")) == identifier), {})
        fields = [FormField("rating", f"Rating for {current.get('name', identifier)}", kind="rating", required=True, value=str(current.get("rating", "")))]

        def rated(values: dict | None):
            if values:
                self.run_now(
                    lambda: media.rate_item(self.kind, identifier, values["rating"]),
                    lambda item: f"Rated {item['name']} {item['rating']}/10",
                    identifier,
                )

        self.app.push_screen(FormDialog("Change rating", fields), rated)

    def action_delete(self):
        identifier = self.selected_key()
        if not identifier:
            return
        name = self.table().get_cell(identifier, "title")

        def confirmed(should_delete: bool | None):
            if should_delete:
                self.run_now(lambda: media.remove_item(self.kind, identifier), f"Removed {name}")

        self.app.push_screen(ConfirmDialog(f"Remove {name}?"), confirmed)