import { OpenAPIHono } from "@hono/zod-openapi";
import { createOpenAPIRegistry } from "@suaveplan/api-openapi";
import { createPluginContext } from "@suaveplan/api-plugin";
import { EventBus } from "@suaveplan/events";
import { beforeEach, describe, expect, it } from "@suaveplan/testing/runner";
import {
    createPaymentPlugin,
    resetPaymentInstruments,
} from "../../src/index.js";
import type { PaymentPluginConfig } from "../../src/types/types.js";
import { FakePaymentProvider } from "../setup/fake-provider.js";

const noopLogger = {
    debug: () => undefined,
    info: () => undefined,
    warn: () => undefined,
    error: () => undefined,
};

const SECRET = "shared-webhook-secret-32-chars-or-more";

interface BootResult {
    app: OpenAPIHono;
    provider: FakePaymentProvider;
    setPrincipal: (id: string | null) => void;
}

async function boot(): Promise<BootResult> {
    resetPaymentInstruments();
    const app = new OpenAPIHono();
    let currentPrincipalId: string | null = "u1";
    app.use("*", async (c, next) => {
        if (currentPrincipalId === null) {
            c.set("user", null);
        } else {
            c.set("user", {
                id: currentPrincipalId,
                emailVerified: true,
                roles: [],
            });
        }
        await next();
    });

    const provider = new FakePaymentProvider();
    const services = new Map<string, unknown>();
    services.set("app", app);
    const registry = createOpenAPIRegistry({
        info: { title: "test", version: "0.1" },
    });
    services.set("openAPIRegistry", registry);

    const plugin = createPaymentPlugin({
        provider,
        webhookSecret: SECRET,
    });
    await plugin.onInit?.(
        createPluginContext<PaymentPluginConfig>({
            logger: noopLogger,
            eventBus: new EventBus(),
            signal: new AbortController().signal,
            config: plugin.defaults as PaymentPluginConfig,
            services,
        })
    );

    return {
        app,
        provider,
        setPrincipal: (id) => {
            currentPrincipalId = id;
        },
    };
}

async function jsonReq(
    app: OpenAPIHono,
    path: string,
    init: { method: string; body?: unknown; headers?: Record<string, string> }
) {
    const headers: Record<string, string> = {
        "content-type": "application/json",
        ...(init.headers ?? {}),
    };
    const reqInit: RequestInit = { method: init.method, headers };
    if (init.body !== undefined) {
        reqInit.body = JSON.stringify(init.body);
    }
    const res = await app.request(path, reqInit);
    const text = await res.text();
    let parsed: unknown = null;
    try {
        parsed = text.length > 0 ? JSON.parse(text) : null;
    } catch {
        parsed = text;
    }
    return { res, body: parsed as Record<string, unknown> | null };
}

beforeEach(() => {
    resetPaymentInstruments();
});

describe("payment plugin — full lifecycle", () => {
    it("create → confirm → capture → refund → get", {
        timeout: 60_000,
    }, async () => {
        const { app, setPrincipal } = await boot();
        setPrincipal("u1");

        const created = await jsonReq(app, "/payments/intents", {
            method: "POST",
            body: {
                amount: { amount: "1000", currency: "USD" },
                captureMethod: "manual",
            },
        });
        expect(created.res.status).toBe(201);
        const intentId = (created.body?.["intent"] as { id: string }).id;

        const confirmed = await jsonReq(
            app,
            `/payments/intents/${intentId}/confirm`,
            { method: "POST", body: {} }
        );
        expect(confirmed.res.status).toBe(200);

        const captured = await jsonReq(
            app,
            `/payments/intents/${intentId}/capture`,
            { method: "POST", body: {} }
        );
        expect(captured.res.status).toBe(200);
        expect((captured.body?.["intent"] as { status: string }).status).toBe(
            "captured"
        );

        const refunded = await jsonReq(
            app,
            `/payments/intents/${intentId}/refund`,
            {
                method: "POST",
                body: {
                    amount: { amount: "400", currency: "USD" },
                    reason: "requested_by_customer",
                },
            }
        );
        expect(refunded.res.status).toBe(200);

        const final = await jsonReq(app, `/payments/intents/${intentId}`, {
            method: "GET",
        });
        expect(final.res.status).toBe(200);
        const finalIntent = final.body?.["intent"] as {
            status: string;
            refundedAmount: { amount: string };
        };
        expect(finalIntent.status).toBe("partially_refunded");
    });

    it("foreign intent returns 404 anti-enumeration", {
        timeout: 60_000,
    }, async () => {
        const { app, setPrincipal } = await boot();
        setPrincipal("u1");
        const created = await jsonReq(app, "/payments/intents", {
            method: "POST",
            body: { amount: { amount: "100", currency: "USD" } },
        });
        const intentId = (created.body?.["intent"] as { id: string }).id;

        setPrincipal("u2");
        const foreign = await jsonReq(app, `/payments/intents/${intentId}`, {
            method: "GET",
        });
        expect(foreign.res.status).toBe(404);

        const missing = await jsonReq(
            app,
            "/payments/intents/pi_does_not_exist",
            { method: "GET" }
        );
        expect(missing.res.status).toBe(404);
    });

    it("list returns only owner-owned intents", {
        timeout: 60_000,
    }, async () => {
        const { app, setPrincipal } = await boot();
        setPrincipal("u1");
        await jsonReq(app, "/payments/intents", {
            method: "POST",
            body: { amount: { amount: "100", currency: "USD" } },
        });
        await jsonReq(app, "/payments/intents", {
            method: "POST",
            body: { amount: { amount: "200", currency: "USD" } },
        });
        setPrincipal("u2");
        await jsonReq(app, "/payments/intents", {
            method: "POST",
            body: { amount: { amount: "300", currency: "USD" } },
        });

        setPrincipal("u1");
        const list = await jsonReq(app, "/payments/intents", {
            method: "GET",
        });
        expect(list.res.status).toBe(200);
        expect((list.body?.["intents"] as readonly unknown[]).length).toBe(2);
    });

    it("cancel route works", { timeout: 60_000 }, async () => {
        const { app, setPrincipal } = await boot();
        setPrincipal("u1");
        const created = await jsonReq(app, "/payments/intents", {
            method: "POST",
            body: { amount: { amount: "100", currency: "USD" } },
        });
        const intentId = (created.body?.["intent"] as { id: string }).id;
        const canceled = await jsonReq(
            app,
            `/payments/intents/${intentId}/cancel`,
            { method: "POST", body: {} }
        );
        expect(canceled.res.status).toBe(200);
        expect((canceled.body?.["intent"] as { status: string }).status).toBe(
            "canceled"
        );
    });
});