/// Ported from `com.rippr.ui.theme.RipprTheme`.
///
/// Dark-only by design for a pocketed ride -- read at a glance, in a pocket-glance, at
/// night as much as in daylight. V3-05 adds [ripprMountedTheme], a deliberate exception
/// for the one screen that is actually looked at continuously, in direct daylight, behind
/// a visor -- where the dark ground loses to glare instead of helping.
library;

import 'package:flutter/material.dart';

// Matches the launcher icon: near-black tarmac with a safety-orange accent.
const _accent = Color(0xFFFF5722);
const _ground = Color(0xFF101418);
const _surface = Color(0xFF181D23);
const _ink = Color(0xFFF2F5F8);
const _outline = Color(0xFF66727E);
const _danger = Color(0xFFE53935);

const ripprColors = ColorScheme.dark(
  primary: _accent,
  onPrimary: Color(0xFF100A06),
  secondary: _outline,
  surface: _surface,
  onSurface: _ink,
  surfaceContainerHighest: Color(0xFF212832),
  onSurfaceVariant: _ink,
  outline: _outline,
  error: _danger,
  onError: _ink,
);

/// The near-black ground the whole app sits on.
const ripprBackground = _ground;

ThemeData ripprTheme() {
  final base = ThemeData(
    colorScheme: ripprColors,
    useMaterial3: true,
    scaffoldBackgroundColor: _ground,
  );

  return base.copyWith(
    // Compose's `Surface` was load-bearing, not decoration: it set `LocalContentColor`.
    // Without it, any Text that did not name a colour fell back to black — invisible on
    // this near-black ground, and **no test caught it; only a screenshot did**.
    //
    // Flutter's equivalent exposure is the default text colour. Setting it explicitly
    // here, rather than relying on a wrapping widget, means the failure cannot recur by
    // someone removing a container.
    textTheme: base.textTheme.apply(bodyColor: _ink, displayColor: _ink),
    appBarTheme: const AppBarTheme(
      backgroundColor: _ground,
      foregroundColor: _ink,
      elevation: 0,
    ),
    dividerTheme: const DividerThemeData(color: Color(0xFF2A323C), space: 1),
  );
}

// V3-05: mounted colours. Near-white ground, near-black ink -- the inverse tradeoff from
// the pocketed theme above. Read against a visor in direct daylight, a dark ground loses
// to glare in a way a dark theme never has to answer for at a pocket glance.
const _mountedGround = Color(0xFFF5F3EF);
const _mountedInk = Color(0xFF12100D);
const _mountedAccent = Color(0xFFD84315);

const ripprMountedColors = ColorScheme.light(
  primary: _mountedAccent,
  onPrimary: Color(0xFFFFFFFF),
  secondary: Color(0xFF4A4034),
  surface: Color(0xFFFFFFFF),
  onSurface: _mountedInk,
  surfaceContainerHighest: Color(0xFFE7E2D9),
  onSurfaceVariant: _mountedInk,
  outline: Color(0xFF706A5E),
  error: Color(0xFFB3261E),
  onError: Color(0xFFFFFFFF),
);

const ripprMountedBackground = _mountedGround;

/// Scales body/headline text up for legibility at a glance, at speed, behind a visor.
/// Kept separate from V3-16's visual identity work -- this is a stopgap born of a real
/// constraint, not a design pass.
const double mountedTextScale = 1.25;

/// V3-05's mounted mode: high contrast, larger text. Only applied to the record screen
/// while mounted, not the whole app -- everywhere else is still read at a pocket glance.
ThemeData ripprMountedTheme() {
  final base = ThemeData(
    colorScheme: ripprMountedColors,
    useMaterial3: true,
    scaffoldBackgroundColor: _mountedGround,
  );

  return base.copyWith(
    textTheme: base.textTheme.apply(
      bodyColor: _mountedInk,
      displayColor: _mountedInk,
    ),
    appBarTheme: const AppBarTheme(
      backgroundColor: _mountedGround,
      foregroundColor: _mountedInk,
      elevation: 0,
    ),
    dividerTheme: const DividerThemeData(color: Color(0xFFDAD4C8), space: 1),
  );
}

/// Monospace for anything numeric.
///
/// Digits that change every second must not make the layout jitter, which proportional
/// figures do. Used for every speed, distance and clock in the app.
const TextStyle monoDigits = TextStyle(
  fontFamily: 'monospace',
  fontFeatures: [FontFeature.tabularFigures()],
);