import { useContext } from "react";
import { twMerge } from "tailwind-merge";
import Row from "@moduletrace/twui/layout/Row";
import Span from "@moduletrace/twui/layout/Span";
import Stack from "@moduletrace/twui/layout/Stack";
import Button from "@moduletrace/twui/layout/Button";
import type { TaskWithNames } from "@/src/types";
import { AppContext } from "@/src/pages/__root";
import BotAvatar from "@/src/components/general/bot-avatar";
import type { BotFace } from "@/src/dict/bot-dict";
import botStoneProps from "@/src/utils/bot-stone-props";
import canManageCrew from "@/src/utils/rbac/can-manage-crew";
import relativeTime from "@/src/utils/relative-time";
import taskPlaceLabel from "@/src/utils/task-place-label";
import { Trash2 } from "lucide-react";
import RowIconButton from "./row-icon-button";
import TaskStatusChip from "./task-status-chip";
import TaskStatusMoves from "./task-status-moves";

type Props = {
    task: TaskWithNames;
    /**
     * Opens the task in its modal: everything about it, and for a crew
     * manager its edit, hand-over, files and delete. The title opens it.
     */
    onOpen?: () => void;
    /**
     * Moves it to one status; only crew managers get the controls.
     */
    onStatusChange?: (status: string) => void;
    /**
     * Deletes it after asking; only crew managers get the button.
     */
    onDelete?: () => void;
    busy?: boolean;
};

/**
 * One task: whose it is (a bot's stone), its title and status, where it
 * is and who has it, what it's blocked on, its latest note and how long ago it
 * moved. Its title opens it in a modal.
 */
export default function TaskListItem({ task, onOpen, onStatusChange, onDelete, busy }: Props) {
    const { pageProps } = useContext(AppContext);
    const can_manage = canManageCrew({ user_types: pageProps?.user_types });
    const done = task.status == "done" || task.status == "cancelled";

    return (
        <Row className="w-full gap-3! flex-nowrap items-start px-3 py-3 border-0 border-b border-solid border-hairline last:border-b-0">
            <BotAvatar
                image_media_id={task.bot_image_media_id}
                {...botStoneProps({ color: task.bot_color, stone: task.bot_stone, hue: task.bot_hue })}
                face={(task.bot_face || "idle") as BotFace}
                size={28}
            />
            <Stack className="grow min-w-0 gap-0.5! items-stretch">
                <Row className="w-full gap-2! flex-nowrap items-center">
                    <Button
                        title={`Open ${task.title || `task ${task.id}`}`}
                        type="button"
                        variant="ghost"
                        color="text"
                        onClick={onOpen}
                        className={twMerge(
                            "grow min-w-0 justify-start px-0! h-auto! py-0! text-sm! font-bold! leading-5! truncate text-left hover:bg-transparent! hover:underline",
                            done ? "text-ink-secondary! line-through" : "text-ink!",
                        )}
                    >
                        <Span className="truncate">{task.title || `Task ${task.id}`}</Span>
                    </Button>
                    <TaskStatusChip status={task.status} />
                    {can_manage && onDelete ? (
                        <RowIconButton
                            icon={Trash2}
                            title={`Delete ${task.title || `task ${task.id}`}`}
                            disabled={busy}
                            onClick={onDelete}
                        />
                    ) : null}
                </Row>
                <Row className="w-full gap-2! flex-nowrap items-center">
                    <Span className="shrink-0 text-xs leading-4 text-ink-secondary truncate">
                        {taskPlaceLabel({ task })}
                    </Span>
                    {task.status == "blocked" && task.blocked_reason ? (
                        <Span className="min-w-0 text-xs leading-4 text-ink truncate">
                            {`Waiting on you: ${task.blocked_reason}`}
                        </Span>
                    ) : null}
                    {task.updated_at ? (
                        <Span className="ml-auto shrink-0 text-[11px] leading-4 text-ink-secondary">
                            {relativeTime({ at: Number(task.updated_at) })}
                        </Span>
                    ) : null}
                </Row>
                {task.latest_note ? (
                    <Span className="text-xs leading-4 text-ink-secondary line-clamp-2">{task.latest_note}</Span>
                ) : null}
                {can_manage && onStatusChange ? (
                    <TaskStatusMoves status={task.status} disabled={busy} onMove={onStatusChange} className="pt-0.5" />
                ) : null}
            </Stack>
        </Row>
    );
}