import clsx from "clsx";
import type { HTMLAttributes, TdHTMLAttributes, ThHTMLAttributes } from "react";

/*
 * One table treatment for the whole console.
 *
 * There were four: billing, licences, accounts and catalogue each wrote their
 * own thead, and they disagreed about the head's type size, its tracking,
 * whether it sat on --panel-2, and whether numbers were tabular. Catalogue's
 * heads were sentence-case body text. A registry whose columns are set four
 * ways does not read as one product.
 *
 * The head is the keyed idiom — mono, small, uppercase, widely tracked — which
 * is what a column head is: a key above a value, exactly as the record line is
 * a key beside one.
 *
 * MOBILE. `stack` collapses the table into one card per row below sm, each cell
 * becoming a label/value pair drawn from TD's `label`. The variants below hang
 * off a `stacked` class on the <table>, so a table that does not opt in is
 * untouched at every width.
 *
 * It is opt-in rather than automatic because a stacked row whose cells have no
 * labels is worse than a scrolling one — the values lose the only thing naming
 * them. Customer screens stack; the staff console's wide registry tables scroll
 * sideways instead, which is the right trade for eight columns read at a desk.
 */

const STACK = "max-sm:[.stacked_&]:block";

export function Table({ stack, className, children, ...props }: HTMLAttributes<HTMLTableElement> & { stack?: boolean }) {
    return (
        <div className="overflow-x-auto">
            <table className={clsx("w-full border-collapse text-left text-[0.86rem]", stack && "stacked max-sm:block", className)} {...props}>
                {children}
            </table>
        </div>
    );
}

export function THead({ className, children, ...props }: HTMLAttributes<HTMLTableSectionElement>) {
    return (
        <thead className={clsx("border-b border-rule", "max-sm:[.stacked_&]:hidden", className)} {...props}>
            {children}
        </thead>
    );
}

export function TBody({ className, children, ...props }: HTMLAttributes<HTMLTableSectionElement>) {
    return (
        <tbody className={clsx(STACK, "max-sm:[.stacked_&]:space-y-3 max-sm:[.stacked_&]:p-3", className)} {...props}>
            {children}
        </tbody>
    );
}

export function TR({ className, children, ...props }: HTMLAttributes<HTMLTableRowElement>) {
    return (
        <tr
            className={clsx(
                "border-b border-rule-soft last:border-0 hover:bg-panel-2",
                STACK,
                // Plain bg-panel-2, not an opacity modifier: this app's tokens
                // are whole colours rather than RGB channels, so `/40` has
                // nothing to drop an alpha into. web/ stores channels precisely
                // because it leans on those modifiers; this one must not.
                "max-sm:[.stacked_&]:rounded max-sm:[.stacked_&]:border max-sm:[.stacked_&]:border-rule max-sm:[.stacked_&]:bg-panel-2 max-sm:[.stacked_&]:p-3",
                className,
            )}
            {...props}
        >
            {children}
        </tr>
    );
}

interface CellProps {
    /** Right-aligns the cell. For quantities and money, which read down the column. */
    numeric?: boolean;
}

export function TH({ className, numeric, children, ...props }: ThHTMLAttributes<HTMLTableCellElement> & CellProps) {
    return (
        <th
            className={clsx(
                "whitespace-nowrap px-4 py-2.5 font-mono text-[0.62rem] font-normal uppercase tracking-[0.13em] text-ink-3",
                numeric && "text-right",
                className,
            )}
            {...props}
        >
            {children}
        </th>
    );
}

export function TD({ className, numeric, label, children, ...props }: TdHTMLAttributes<HTMLTableCellElement> & CellProps & { label?: string }) {
    return (
        <td
            className={clsx(
                "px-4 py-3 align-middle",
                numeric && "text-right tabular-nums",
                // Stacked, a cell is a label above its value and the right
                // alignment that made a money column read down the page is
                // meaningless, so it is dropped.
                STACK,
                "max-sm:[.stacked_&]:px-0 max-sm:[.stacked_&]:py-1 max-sm:[.stacked_&]:text-left",
                className,
            )}
            {...props}
        >
            {label && (
                <span className="mb-0.5 hidden font-mono text-[0.6rem] uppercase tracking-[0.13em] text-ink-3 max-sm:[.stacked_&]:block">{label}</span>
            )}
            {children}
        </td>
    );
}

/** The secondary line under a cell's main value — an ID, a deployment, a date. */
export function Sub({ children }: { children: React.ReactNode }) {
    return <div className="text-[0.78rem] text-ink-3">{children}</div>;
}