/**
 * @file SettingsRow — the settings page's row primitives: a titled card
 * (`SettingsSection`), a label/description | control row (`SettingsRow`), a
 * switch row (`SettingsSwitchRow`) and a segmented radio group
 * (`SettingsSegmented`). Rows divide themselves with a hairline, none after the
 * last, so a section is just its rows in order.
 * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
 */

import type { ReactNode } from "react";

export function SettingsSection({
  title,
  description,
  children,
}: {
  title: ReactNode;
  description?: ReactNode;
  children: ReactNode;
}) {
  return (
    <section className="card p-5">
      <h3 className="text-sm font-semibold text-fg-primary">{title}</h3>
      {description && <p className="mt-0.5 text-xs text-fg-muted">{description}</p>}
      <div className="mt-2">{children}</div>
    </section>
  );
}

export function SettingsRow({
  label,
  description,
  control,
  alignTop = false,
}: {
  label: ReactNode;
  description?: ReactNode;
  control: ReactNode;
  alignTop?: boolean;
}) {
  return (
    <div
      className={`flex justify-between gap-4 border-b border-border/60 last:border-b-0 ${
        description ? "py-3" : "py-2"
      } ${alignTop ? "items-start" : "items-center"}`}
    >
      <div className="min-w-0">
        <p className="text-sm text-fg-secondary">{label}</p>
        {description && <p className="mt-0.5 text-xs text-fg-muted">{description}</p>}
      </div>
      <div className="shrink-0">{control}</div>
    </div>
  );
}

export function SettingsSwitchRow({
  label,
  description,
  checked,
  onChange,
  disabled = false,
}: {
  label: string;
  description?: ReactNode;
  checked: boolean;
  onChange: (v: boolean) => void;
  disabled?: boolean;
}) {
  return (
    <SettingsRow
      label={label}
      description={description}
      control={
        <button
          type="button"
          role="switch"
          aria-checked={checked}
          aria-label={label}
          disabled={disabled}
          onClick={() => onChange(!checked)}
          className={`relative inline-flex h-5 w-9 rounded-full border-2 border-transparent transition-colors disabled:opacity-50 ${
            checked ? "bg-accent" : "bg-surface-4"
          }`}
        >
          <span
            className={`pointer-events-none inline-block h-4 w-4 rounded-full bg-white shadow transition-transform ${
              checked ? "translate-x-4" : "translate-x-0"
            }`}
          />
        </button>
      }
    />
  );
}

export function SettingsSegmented<T extends string>({
  options,
  value,
  onChange,
  ariaLabel,
}: {
  options: { value: T; label: ReactNode }[];
  value: T;
  onChange: (v: T) => void;
  ariaLabel?: string;
}) {
  return (
    <div
      role="radiogroup"
      aria-label={ariaLabel}
      className="inline-flex rounded-lg border border-border bg-surface-2 p-0.5"
    >
      {options.map((o) => (
        <button
          key={o.value}
          type="button"
          role="radio"
          aria-checked={value === o.value}
          onClick={() => onChange(o.value)}
          className={`flex items-center gap-1.5 rounded-md px-3 py-1.5 text-xs font-medium transition-colors ${
            value === o.value
              ? "bg-accent/20 text-accent"
              : "text-fg-secondary hover:bg-surface-3 hover:text-fg-primary"
          }`}
        >
          {o.label}
        </button>
      ))}
    </div>
  );
}