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npm install @lingara/apps@0.1.0-alpha.6

cargo add lingara-apps@0.1.0-alpha.6 --features axum
cargo add axum@0.8
cargo add tokio --features macros,net,rt-multi-thread

go get github.com/Spinning-Cat-Studios/lingara_app_framework_sdk/go@v0.1.0-alpha.6

<dependency>
  <groupId>com.getlingara</groupId>
  <artifactId>lingara-apps-java</artifactId>
  <version>0.1.0-alpha.6</version>
</dependency>

implementation("com.getlingara:lingara-apps-kotlin:0.1.0-alpha.6")

gem install lingara-apps -v 0.1.0-alpha.6

composer require spinningcatstudios/lingara-apps:0.1.0-alpha.6 spinningcatstudios/lingara:@alpha

import { manifest } from "@lingara/apps";

const json = manifest()
  .defaultLocale("en")
  .name({ en: "Daily five", "zh-Hans": "每日五词" })
  .description("Five words to review, picked from your plan.")
  .renderUrl("https://apps.example.com/lingara/render")
  .slots("home.side", "plans.empty_detail")
  .context("languages", "plan_summary")
  // `.scopes(…)` lists the API scopes your client uses, for the learner's consent page. This app uses none.
  .tutorNote()
  .toJson(); // Throws ManifestError naming the rule an upload would refuse.

writeFileSync("manifest.json", json); // Upload it in the console.

let manifest = manifest()
    .default_locale("en")
    .name("Daily five")
    .description("Five words to review, picked from your plan.")
    .render_url("https://apps.example.com/lingara/render")
    .slots([AppSlotName::HomeSide, AppSlotName::PlansEmptyDetail])
    .context([ContextSliceKind::Languages, ContextSliceKind::PlanSummary])
    // `.scopes(…)` lists the API scopes your client uses, for the learner's consent page. This app uses none.
    .tutor_note(true)
    .build()?;
std::fs::write("manifest.json", manifest.to_json())?;

manifest, err := lingaraapps.NewManifest().
	DefaultLocale("en").
	Names(map[string]string{"en": "Daily five", "zh-Hans": "每日五词"}).
	Description("Five words to review, picked from your plan.").
	RenderURL("https://apps.example.com/lingara").
	Slots(lingaraapps.AppSlotNameHomeSide, lingaraapps.AppSlotNamePlansEmptyDetail).
	Context(lingaraapps.ContextSliceKindLanguages, lingaraapps.ContextSliceKindPlanSummary).
	// `.Scopes(…)` lists the API scopes your client uses, for the learner's consent page. This app uses none.
	TutorNote(true).
	Build()
if err != nil {
	return err // a *lingaraapps.ManifestError names the broken rule
}
data, err := manifest.ToJSON()
if err != nil {
	return err
}
// Upload manifest.json in the console.
err = os.WriteFile("manifest.json", data, 0o644)

import com.getlingara.apps.Manifest;
import com.getlingara.apps.model.AppSlotName;
import com.getlingara.apps.model.ContextSliceKind;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;

String json =
    Manifest.manifest()
        .defaultLocale("en")
        .name("Daily five")
        .description("Five words to review, picked from your plan.")
        .renderUrl("https://apps.example.com/lingara/render")
        .slots(AppSlotName.HOME_SIDE)
        .context(ContextSliceKind.LANGUAGES, ContextSliceKind.PLAN_SUMMARY)
        // `.scopes(…)` lists the API scopes your client uses, for the learner's consent
        // page. This app uses none.
        .tutorNote(true)
        .build() // refuses what the upload would, naming the rule
        .toJson();
// Upload manifest.json in the console, beside the app's icon.
Files.writeString(Path.of("manifest.json"), json);

import com.getlingara.apps.kotlin.manifest
import com.getlingara.apps.kotlin.model.AppSlotName
import com.getlingara.apps.kotlin.model.ContextSliceKind
import java.io.File

val json =
    manifest {
        defaultLocale = "en"
        name("Daily five")
        description("Five words to review, picked from your plan.")
        renderUrl = "https://apps.example.com/lingara/render"
        slots(AppSlotName.HOME_PERIOD_SIDE)
        context(ContextSliceKind.LANGUAGES, ContextSliceKind.PLAN_SUMMARY)
        // `scopes(…)` lists the API scopes your client uses, for the learner's consent page.
        // This app uses none.
        tutorNote = true
    }.toJson() // refuses what the upload would, naming the rule
// Upload manifest.json in the console, beside the app's icon.
File("manifest.json").writeText(json)

manifest = Lingara::Apps.manifest
  .default_locale("en")
  .name("Daily five") # A bare String is the default locale's; or {"en" => …, "zh-Hans" => …}.
  .description("Five words to review, picked from your plan.")
  .render_url("https://apps.example.com/lingara")
  .slots("home.side", "plans.empty_detail")
  .context("languages", "plan_summary")
  # `.scopes(…)` lists the API scopes your client uses, for the learner's consent page. This app uses none.
  .tutor_note
# Raises Lingara::Apps::ManifestError naming the rule the upload would refuse.
File.write("manifest.json", manifest.to_json)

use Lingara\Apps\Generated\AppSlotName;
use Lingara\Apps\Manifest;

$json = Manifest::create()
    ->defaultLocale('en')
    ->name(['en' => 'Daily five', 'zh-Hans' => '每日五词'])
    ->description('Five words to review, picked from your plan.')
    ->renderUrl('https://apps.example.com/lingara/render')
    ->slots(AppSlotName::HOME_SIDE, AppSlotName::PLANS_EMPTY_DETAIL)
    ->context('languages', 'plan_summary')
    // `->scopes(…)` lists the API scopes your client uses, for the learner's consent page. This app uses none.
    ->tutorNote()
    ->toJson(); // Throws ManifestException naming the rule an upload would refuse.

file_put_contents('manifest.json', $json); // Upload it in the console.

const app = lingaraApp({
  // lgr_whsec_…, from the app's settings; pass two during a rotation.
  secret: process.env.LINGARA_APP_SECRET!,
  // Hold per-learner state on `subject`, the same value your events carry.
  render: (request) => (request.slot === "home.side" ? withNote(request) : todayCard(streaks.get(request.subject) ?? 0)),
  actions: {
    // The button's `action`; may arrive twice, so make it safe to repeat.
    done: (request) => {
      streaks.set(request.subject, (streaks.get(request.subject) ?? 0) + 1);
      return todayCard(streaks.get(request.subject)!);
    },
  },
});

// The app's signing secret (lgr_whsec_…), from the environment.
let seen = Seen::default();
let (render_seen, action_seen) = (Arc::clone(&seen), Arc::clone(&seen));
let app = App::new([std::env::var("LINGARA_APP_SECRET")?], move |request: AppRenderRequest| {
    render(Arc::clone(&render_seen), request)
})?
// The button's `action` comes back as `action_id`. An action can arrive
// twice, so keep it safe to repeat.
.action("next", move |request: AppActionRequest| {
    let seen = Arc::clone(&action_seen);
    async move {
        *seen.lock().map_err(|_| "poisoned")?.entry(request.subject).or_default() += 1;
        today_card("Next word", "zh")
    }
});

// Per-learner state is keyed on Subject, the lgr_sub_… value the app's
// events carry too.
var mu sync.Mutex
streaks := map[string]int{}

render := func(ctx context.Context, req lingaraapps.AppRenderRequest) (lingaraapps.Replier, error) {
	mu.Lock()
	days := streaks[req.Subject]
	mu.Unlock()
	return lingaraapps.NewCard().
		Heading("Daily five", 1).
		Progress(float64(days%5)/5, "This week").
		Button("Done today", "done").
		Build()
}
// An action may arrive twice: make it safe to run twice.
done := func(ctx context.Context, req lingaraapps.AppActionRequest) (lingaraapps.Replier, error) {
	mu.Lock()
	streaks[req.Subject]++
	mu.Unlock()
	return lingaraapps.NewCard().Heading("Nice work", 1).Text("See you tomorrow.").Build()
}
app := lingaraapps.App{
	Render:  render,
	Actions: map[string]lingaraapps.ActionFunc{"done": done},
}

import com.getlingara.apps.Card;
import com.getlingara.apps.LingaraApp;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

// Per-learner state is keyed on subject, the value the app's events carry too.
Map<String, Integer> seen = new ConcurrentHashMap<>();
LingaraApp app =
    LingaraApp.builder()
        // The app's signing secret (lgr_whsec_…); pass two during a rotation.
        .secrets(System.getenv("LINGARA_APP_SECRET"))
        .render(
            request -> {
              int count = seen.getOrDefault(request.getSubject(), 0);
              return Card.card()
                  .heading("Today's five", 1)
                  .text("Reviewed " + count + " so far.")
                  .button("Next", "next")
                  .build();
            })
        // The button's action comes back as the request's action_id. It may arrive
        // twice, so make it safe to repeat.
        .action(
            "next",
            request -> {
              int count = seen.merge(request.getSubject(), 1, Integer::sum);
              return Card.card().progress(Math.min(1.0, count / 5.0), count + " of 5").build();
            })
        .build();

import com.getlingara.apps.kotlin.LingaraApp
import com.getlingara.apps.kotlin.card
import com.getlingara.apps.kotlin.lingaraApp
import java.util.concurrent.ConcurrentHashMap

// Per-learner state is keyed on subject, the value the app's events carry too.
val seen = ConcurrentHashMap<String, Int>()
val app =
    lingaraApp {
        // The app's signing secret (lgr_whsec_…); pass two during a rotation.
        secrets(System.getenv("LINGARA_APP_SECRET"))
        render { request ->
            val count = seen.getOrDefault(request.subject, 0)
            card {
                heading("Today's five", 1)
                text("Reviewed $count so far.")
                button("Next", "next")
            }
        }
        // The button's action comes back as the request's action_id. It may arrive twice,
        // so make it safe to repeat.
        action("next") { request ->
            val count = seen.merge(request.subject, 1, Int::plus) ?: 1
            card { progress(minOf(1.0, count / 5.0), "$count of 5") }
        }
    }

# lgr_whsec_…, from the app's settings; pass an Array of two during a rotation.
app = Lingara::Apps::App.new(secret: ENV.fetch("LINGARA_APP_SECRET"))
# Hold per-learner state on `subject`, the same value your events carry.
app.render do |request|
  (request.slot == "home.side") ? with_note(request) : today_card(STREAKS[request.subject])
end
# The button's `action`; it may arrive twice, so make it safe to repeat.
app.action("done") do |request|
  STREAKS[request.subject] += 1
  today_card(STREAKS[request.subject])
end

use Lingara\Apps\App;
use Lingara\Apps\Generated\AppActionRequest;
use Lingara\Apps\Generated\AppRenderRequest;

$app = new App(
    // lgr_whsec_…, from the app's settings; pass a list of two during a rotation.
    secret: (string) getenv('LINGARA_APP_SECRET'),
    // Hold per-learner state on `subject`, the same value your events carry.
    render: static fn(AppRenderRequest $request) => $request->getSlot() === AppSlotName::HOME_SIDE
        ? withNote($request)
        : todayCard($streaks[$request->getSubject()] ?? 0),
    actions: [
        // The button's `action`; may arrive twice, so make it safe to repeat.
        'done' => static function (AppActionRequest $request) use (&$streaks): CardModel {
            $streaks[$request->getSubject()] = ($streaks[$request->getSubject()] ?? 0) + 1;
            return todayCard($streaks[$request->getSubject()]);
        },
    ],
);

// A node:http request listener: it reads the raw body, verifies, dispatches and replies.
createServer(nodeHandler(app)).listen(8787);

// Nest the adapter at the path your manifest's render_url names.
let routes = axum::Router::new().nest("/lingara/render", lingara_apps::axum::router(app));
let listener = tokio::net::TcpListener::bind("0.0.0.0:8080").await?;
axum::serve(listener, routes).await?;

// The app's signing secret, lgr_whsec_…, or both during a rotation.
handler, err := lingaraapps.NewHandler(app, os.Getenv("LINGARA_APP_SECRET"))
if err != nil {
	return err // a malformed secret fails here, at startup
}
mux := http.NewServeMux()
mux.Handle("/lingara", handler)
err = http.ListenAndServe(":8080", mux)

import com.getlingara.apps.JdkHttpHandler;
import com.getlingara.apps.LingaraApp;
import com.sun.net.httpserver.HttpServer;
import java.io.IOException;
import java.net.InetSocketAddress;

// The JDK's own server: the handler reads the raw body, verifies it, then dispatches.
HttpServer server = HttpServer.create(new InetSocketAddress(8080), 0);
server.createContext("/lingara/render", JdkHttpHandler.of(app));
server.start();

import com.getlingara.apps.kotlin.LingaraApp
import com.getlingara.apps.kotlin.ktor.lingaraApp
import io.ktor.server.cio.CIO
import io.ktor.server.engine.embeddedServer
import io.ktor.server.routing.route
import io.ktor.server.routing.routing

// Route.lingaraApp reads the raw body itself, so content negotiation never parses it.
embeddedServer(CIO, port = 8080) {
    routing {
        route("/lingara/render") { lingaraApp(app) }
    }
}.start(wait = true)

# config.ru: any Rack server (Puma, Falcon, rackup) runs it. It reads the
# raw body itself, so mount it where nothing has parsed the JSON first.
run Lingara::Apps::RackApp.new(app)

use Lingara\Apps\Psr15Handler;
use Nyholm\Psr7\Factory\Psr17Factory;
use Nyholm\Psr7Server\ServerRequestCreator;

// A PSR-15 handler: mount it on your framework's route, or answer from a
// front controller as here. It reads the raw body, verifies, dispatches and replies.
$factory = new Psr17Factory();
$handler = new Psr15Handler($app, $factory, $factory);
$response = $handler->handle((new ServerRequestCreator($factory, $factory, $factory, $factory))->fromGlobals());
http_response_code($response->getStatusCode());
foreach ($response->getHeaders() as $name => $values) {
    header("{$name}: " . implode(', ', $values));
}
echo $response->getBody();