import { mkdirSync } from "node:fs";
import { resolve } from "node:path";

import { expect, test } from "@playwright/test";
import { createServer, type ViteDevServer } from "vite";

let vite: ViteDevServer;
let webUrl: string;

test.beforeAll(async () => {
  vite = await createServer({ configFile: resolve("apps/web/vite.config.ts"), root: resolve("apps/web"), server: { host: "127.0.0.1", port: 0 } });
  await vite.listen();
  const address = vite.httpServer?.address();
  if (!address || typeof address === "string") throw new Error("Vite did not expose a test port.");
  webUrl = `http://127.0.0.1:${address.port}`;
});

test.afterAll(async () => vite.close());

const userId = "00000000-0000-4000-8000-000000000601";
const adminId = "00000000-0000-4000-8000-000000000602";
const session = {
  audience: "user", authenticated: true, credits: { available_balance: -5, reserved_balance: 1 },
  csrf_token: "csrf-credit-fixture-0000000000000000000000000000000000",
  expires_at: "2026-09-02T12:00:00.000Z",
  user: { creator_name: "Credit User", role: "user", social_id: "@credit", status: "active", user_id: userId },
};

test("TDD-WP2-CRED-001-insufficient shows negative available, reserved and no purchase entry", async ({ page }) => {
  await page.route("**/api/v1/auth/session", (route) => route.fulfill({ body: JSON.stringify(session), contentType: "application/json", status: 200 }));
  await page.route("**/api/v1/me/credits", (route) => route.fulfill({
    body: JSON.stringify({ available_balance: -5, reserved_balance: 1, updated_at: "2026-08-02T12:00:00.000Z" }), contentType: "application/json", status: 200,
  }));
  await page.route("**/api/v1/me/credit-ledger**", (route) => route.fulfill({
    body: JSON.stringify({
      credits: { available_balance: -5, reserved_balance: 1 },
      entries: [{
        amount: -5, available_after: -5, available_before: 0, created_at: "2026-08-02T12:00:00.000Z",
        entry_id: "00000000-0000-4000-8000-000000000603", entry_type: "admin_adjustment",
        model_id: null, reason: "人工测试额度校正", reference_id: "00000000-0000-4000-8000-000000000604",
        reference_type: "admin_adjustment", reserved_after: 1, reserved_before: 1, status: "succeeded",
      }], next_cursor: null, updated_at: "2026-08-02T12:00:00.000Z",
    }), contentType: "application/json", status: 200,
  }));
  await page.goto(`${webUrl}/app/credits`);
  await expect(page.getByRole("heading", { name: "点数明细" })).toBeVisible();
  await expect(page.getByText("-5", { exact: true })).toBeVisible();
  await expect(page.getByText("已冻结 1 点")).toBeVisible();
  await expect(page.getByText("可用点数不足时，请联系管理员调整点数。" )).toBeVisible();
  await expect(page.getByText(/购买|充值/)).toHaveCount(0);
  const root = process.env.DADA_EVIDENCE_DIR_CREDITS;
  if (root) {
    const directory = resolve(root, "TDD-WP2-CRED-001-insufficient", "screenshots");
    mkdirSync(directory, { recursive: true });
    await page.screenshot({ fullPage: true, path: resolve(directory, "insufficient.png") });
  }
});

test("TDD-WP2-CRED-002-admin-adjustment previews and submits available-only negative balance", async ({ page }) => {
  let adjusted = false;
  const adminSession = {
    acknowledged_private_content_notice_version: null,
    admin: { role: "super_admin", status: "active", user_id: adminId }, audience: "admin", authenticated: true,
    csrf_token: "csrf-admin-credit-fixture-0000000000000000000000000000000",
    current_private_content_notice_version: null, expires_at: "2026-09-02T12:00:00.000Z", notice_acknowledged: false,
  };
  await page.route("**/api/v1/admin-auth/session", (route) => route.fulfill({ body: JSON.stringify(adminSession), contentType: "application/json", status: 200 }));
  await page.route(`**/api/v1/admin/users/${userId}/credits`, (route) => route.fulfill({
    body: JSON.stringify({ available_balance: adjusted ? -5 : 0, reserved_balance: 1, updated_at: "2026-08-02T12:00:00.000Z" }), contentType: "application/json", status: 200,
  }));
  await page.route(`**/api/v1/admin/users/${userId}/credit-adjustments`, (route) => {
    adjusted = true;
    const body = route.request().postDataJSON() as { adjustment_id: string };
    return route.fulfill({ body: JSON.stringify({ adjustment_id: body.adjustment_id, available_balance: -5, reserved_balance: 1, status: "adjusted" }), contentType: "application/json", status: 200 });
  });
  await page.goto(`${webUrl}/admin/users?userId=${userId}`);
  await page.getByRole("button", { name: "调整点数" }).click();
  await page.getByRole("radio", { name: "扣减" }).check();
  await page.getByLabel("调整数量").fill("5");
  await page.getByLabel("调整原因").fill("人工测试额度校正");
  await expect(page.getByText("调整后可用点数 -5")).toBeVisible();
  await expect(page.getByText("冻结点数保持 1")).toBeVisible();
  const root = process.env.DADA_EVIDENCE_DIR_CREDITS;
  if (root) {
    const directory = resolve(root, "TDD-WP2-CRED-002-admin-adjustment", "screenshots");
    mkdirSync(directory, { recursive: true });
    await page.screenshot({ fullPage: true, path: resolve(directory, "negative-balance.png") });
  }
  await page.getByRole("button", { name: "确认调整" }).click();
  await expect(page.getByText("点数调整已完成并记录审计")).toBeVisible();
  expect(adjusted).toBe(true);
});