import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:lucide_icons_flutter/lucide_icons.dart';
import 'package:shared_preferences/shared_preferences.dart';

import 'package:miler/views/Dashboard/activity/activity_page.dart';
import 'package:miler/views/Dashboard/profile/Profilepage.dart';
import 'package:miler/views/helpers/constants/Colorconstants.dart';
import 'package:miler/views/helpers/widgets/miler_app_bar.dart';
import 'package:miler/data/accepted_store.dart';

/// ── A day's work is a list, not a stack of cards ──
///
/// Every finished stop was a filled, rounded card with 12pt of air under it,
/// and inside each one a *second*, white panel holding the three figures. So the
/// page came down the screen as grey slabs with white slabs punched into them —
/// the card-inside-card shape, repeated once per stop — and on top of that every
/// row opened with a 40pt green disc that was identical on all of them.
///
/// Finished stops are all the same kind of thing, arriving in one order, read by
/// scanning down. That is a list, and a list is separated by rules.
void main() {
  String day(DateTime t) =>
      '${t.year}-${t.month.toString().padLeft(2, '0')}-'
      '${t.day.toString().padLeft(2, '0')}';

  Map<String, dynamic> finished(
    String id,
    String name,
    String address, {
    required String type,
    double cash = 0,
    int minsAgo = 30,
  }) {
    final now = DateTime.now();
    final at = now.subtract(Duration(minutes: minsAgo));
    return {
      'orderid': id,
      'type': type,
      'pickupcustomer': name,
      'pickupaddress': address,
      'orderstatus': 'picked',
      'completedday': day(now),
      'completedat': at.toIso8601String(),
      'startedat': at.subtract(const Duration(minutes: 14)).toIso8601String(),
      if (cash > 0) 'collectionamt': '$cash',
      'proof': {if (cash > 0) 'amountcollected': cash},
    };
  }

  Future<void> pumpActivity(WidgetTester tester) async {
    SharedPreferences.setMockInitialValues({'userId': 1});
    await debugSeedStore(
      'completed_bookings',
      jsonEncode([
        finished(
          'DM240817',
          'Sundar Textiles',
          '78, Cross Cut Road, Gandhipuram, Coimbatore',
          type: 'combined',
          cash: 2450,
          minsAgo: 22,
        ),
        finished(
          'DM240816',
          'Green Leaf Grocers',
          '29, Kovaipudur Main Road, Coimbatore',
          type: 'delivery',
          minsAgo: 68,
        ),
      ]),
    );

    tester.view.physicalSize = const Size(390 * 3, 844 * 3);
    tester.view.devicePixelRatio = 3.0;
    addTearDown(tester.view.reset);

    await tester.pumpWidget(
      ScreenUtilInit(
        designSize: const Size(390, 844),
        builder: (_, _) => const MaterialApp(home: ActivityPage()),
      ),
    );
    await tester.pumpAndSettle(const Duration(seconds: 2));
  }

  testWidgets('a finished stop is not a card', (tester) async {
    await pumpActivity(tester);
    expect(find.text('Sundar Textiles'), findsOneWidget);

    // `cardSurface` was the row fill and `pureSurface` the fill of the figure
    // panel nested inside it. Neither may come back: on a white page a filled
    // row is a box round a list item, and a filled panel inside a filled row is
    // the shape this page was rebuilt to remove.
    final fills = tester
        .widgetList<Container>(find.byType(Container))
        .map((c) => c.decoration)
        .whereType<BoxDecoration>()
        .map((d) => d.color)
        .toList();

    expect(fills, isNot(contains(ColorConstants.cardSurface)));
  });

  // ── A history row says who, when and how much, and nothing else ──
  //
  // Every finished stop used to carry a two-line address and a verdict
  // sentence — `Pickup & Delivery · On time · +2.1 km over · ₹2,450` — so a
  // rider looking for one drop read four to six lines per row to find it.
  //
  // The type and the compliance figures did not disappear; they are fields in
  // the row's own detail panel, which is where a rider goes when he wants them
  // for ONE stop rather than for all forty.
  testWidgets('the collapsed row carries no verdict sentence', (tester) async {
    await pumpActivity(tester);

    // The subject of the row.
    expect(find.text('Sundar Textiles'), findsOneWidget);

    // `On time` on every row separates nothing. Only exceptions get words now.
    expect(find.text('On time'), findsNothing);
    expect(find.text('Time not measured'), findsNothing);

    // `titleLabel`, the sentence-case type word, was the verdict line's lead
    // and is gone with it. `badgeLabel` is a field value in the detail panel,
    // which `AnimatedCrossFade` builds whether or not the row is open.
    expect(find.text('Pickup & Delivery'), findsNothing);
    expect(find.text('P&D'), findsNothing);
    // The type is the record's business, one tap away — see
    // `test/delivery_details_test.dart`.
    expect(find.textContaining('PICKUP & DELIVERY'), findsNothing);

    // ── The reference left the row ──
    //
    // It used to head the card, on the argument that an office reads it down
    // a phone at a rider. That is true and it is still the wrong place for it:
    // the office asks about *one* stop, and the rider finds that stop by the
    // customer's name — which he then taps. Printing a database identifier on
    // every row of a shift log makes him scan past twelve of them to reach the
    // one name he is looking for. It lives on the record page.
    expect(find.text('#DM240817'), findsNothing);
  });

  testWidgets('the four tabs agree on what colour the paper is', (
    tester,
  ) async {
    // Account was on `surface` (#FCF9F8, a warm off-white) while Home and
    // Activity were on `pureSurface`. Bookings hides its background under
    // cards; Account is bare rows, so the whole tab read a shade dirtier.
    //
    // The paper moved: the scaffold's own background is the **brand** now, so
    // it shows through the two rounded top corners of [MilerSheet], and the
    // sheet paints the page. Both halves are contracts — a tab whose ground is
    // white draws no corners at all, and a tab whose sheet is off-white is the
    // original bug one layer down — so both are asserted.
    T? firstOf<T extends Widget>() {
      final found = <T>[];
      void visit(Element e) {
        final w = e.widget;
        if (w is T) found.add(w);
        e.visitChildren(visit);
      }

      WidgetsBinding.instance.rootElement!.visitChildren(visit);
      return found.isEmpty ? null : found.first;
    }

    SharedPreferences.setMockInitialValues({'userId': 1});
    tester.view.physicalSize = const Size(390 * 3, 844 * 3);
    tester.view.devicePixelRatio = 3.0;
    addTearDown(tester.view.reset);

    for (final page in <Widget>[const ActivityPage(), const ProfilePage()]) {
      await tester.pumpWidget(
        ScreenUtilInit(
          designSize: const Size(390, 844),
          builder: (_, _) => MaterialApp(home: page),
        ),
      );
      await tester.pump();

      expect(
        firstOf<Scaffold>()?.backgroundColor,
        ColorConstants.primary,
        reason: 'the ground behind the sheet corners must be the brand',
      );
      final sheet = firstOf<MilerSheet>();
      expect(sheet, isNotNull, reason: 'every tab sits in a MilerSheet');
      // What the tabs must agree on is the *ladder*, not one flat paper:
      // a sheet is either the working white (rows drawn straight on it —
      // Activity) or the canvas with white panels standing on it (Home,
      // Account). What stays banned is what this test was written against —
      // the warm off-white that made one tab read a shade dirtier than the
      // rest.
      expect(
        sheet!.color ?? ColorConstants.pureSurface,
        anyOf(ColorConstants.pureSurface, ColorConstants.daylightSurface),
        reason: 'a sheet is a rung of the surface ladder, never an off-white',
      );
    }
  });

  // ── A row offers one gesture, and it is the whole row ──
  //
  // The card carried a footer band: a hairline, ~22pt of gaps, the booking
  // reference, and a red bold `Details ›` — which had **no `onTap`**. The
  // GlassCard around it was the gesture and always had been, so the loudest
  // element on a finished stop was a link that could not be pressed, pointing
  // at the tap the rider was already making. It cost ~41pt on every row of a
  // page that exists to be scanned.
  //
  // The reference stayed — the office recites it down a phone at him — and
  // moved onto the right edge of the measurements line, which was empty.
  testWidgets('a finished row has no second way in', (tester) async {
    await pumpActivity(tester);

    expect(
      find.text('Details'),
      findsNothing,
      reason: 'a control that cannot be pressed is worse than no control',
    );
    // The chevron RETURNED, deliberately, after the Home disclosure pass
    // taught the difference: the sin was a bold red "Details ›" styled as a
    // second button; a quiet border-grey chevron on the name line is the
    // opposite thing — the passive "this goes somewhere" signal every
    // Account row wears, marking the gesture the whole card owns.
    expect(
      find.byIcon(LucideIcons.chevronRight),
      findsWidgets,
      reason: 'a tappable row without any affordance is a secret',
    );

    // The reference is on the record page now, not the row — see above.
    expect(find.text('#DM240817'), findsNothing);
  });

  // ── `the reference shares the measurements line` is gone ──
  //
  // It pinned the reference and the duration onto one storey, which was the
  // right fix while the reference was on the row at all. It is not on the row
  // any more, so the assertion has no subject — and a test kept alive by
  // rewriting it to check something it was never about is worse than one
  // deleted with its reasoning recorded.
}