from dataclasses import dataclass

from django.contrib.sites.shortcuts import get_current_site as django_get_current_site
from django.db.models import Model
from django.http import HttpRequest
from django.http import HttpResponse
from django.urls import reverse
from zen_queries import render


def base_view_context(request):
    """Include the current site in the context."""
    return {"site": django_get_current_site(request)}


@dataclass
class Row:
    """
    A row in a table.
    """

    data: dict[str, str]
    actions: list[dict[str, str]]


@dataclass
class RowAction:
    """
    An action that can be performed on a row in a table.
    """

    label: str
    url_name: str
    url_kwargs: dict[str, str]

    def render(self, obj) -> dict[str, str]:
        """
        Render the action as a dictionary for the given object.
        """
        url = reverse(
            self.url_name,
            kwargs={key: getattr(obj, value) for key, value in self.url_kwargs.items()},
        )
        return {"label": self.label, "url": url}


def render_list(
    request: HttpRequest,
    objects: list["Model"],
    columns: list[tuple[str, str]],
    row_actions: list[RowAction] = None,
    list_actions: list[tuple[str, str]] = None,
) -> HttpResponse:
    """
    Render a list of objects with a table.
    """

    # TODO: List actions

    rows = []
    for obj in objects:
        row = Row(
            data={column: getattr(obj, column[0]) for column in columns},
            actions=[action.render(obj) for action in row_actions],
        )
        rows.append(row)

    column_labels = [column[1] for column in columns]

    context = base_view_context(request) | {
        "rows": rows,
        "columns": column_labels,
        "row_actions": row_actions,
        "list_actions": list_actions,
    }

    return render(
        request=request,
        template_name="utils/list.html",
        context=context,
    )