import { execFile } from "node:child_process";
import { mkdir, writeFile } from "node:fs/promises";
import { join } from "node:path";
import { promisify } from "node:util";

import { createPackageWithOptions } from "@electron/asar";
import { describe, expect, it } from "vitest";

import { createTestTempDirectory } from "./fixtures/temporaryDirectory.js";

import {
  renderCliOutputArgumentError,
  sanitizeCliOutput,
  validateCliOutputArguments,
} from "../src/cliOutput.js";

const execFileAsync = promisify(execFile);
const CLI_INTEGRATION_TIMEOUT_MS = 60_000;
const CLI_VARIANT_TIMEOUT_MS = 120_000;

describe("CLI output boundary", () => {
  it("rejects token windows that would corrupt structured output", () => {
    for (const format of ["json", "jsonl", "yaml"] as const) {
      const validation = validateCliOutputArguments([
        "providers",
        "--token-limit",
        "5",
        "--format",
        format,
      ]);
      expect(validation).toMatchObject({
        ok: false,
        format,
        code: "UNSUPPORTED_OUTPUT_COMBINATION",
      });
      if (!validation.ok) {
        const rendered = renderCliOutputArgumentError(validation);
        expect(rendered).not.toContain("[truncated:");
        if (format === "json" || format === "jsonl")
          expect(JSON.parse(rendered)).toMatchObject({
            ok: false,
            error: { code: "UNSUPPORTED_OUTPUT_COMBINATION" },
          });
        else
          expect(rendered).toMatch(
            /^ok: false\nerror:\n  code: UNSUPPORTED_OUTPUT_COMBINATION\n/u,
          );
      }
    }
    expect(
      validateCliOutputArguments([
        "providers",
        "--token-limit",
        "5",
        "--format",
        "toon",
      ]),
    ).toEqual({ ok: true });
    expect(
      validateCliOutputArguments(["providers", "--token-count", "--json"]),
    ).toEqual({ ok: true });
  });

  it("fails before emitting a truncated JSON document", async () => {
    const execution = execFileAsync(
      process.execPath,
      ["scripts/rea.mjs", "providers", "--token-limit", "5", "--json"],
      { cwd: process.cwd() },
    );
    const failure = await execution.catch((cause: unknown) => cause);
    expect(failure).toMatchObject({ code: 1 });
    const { stdout } = failure as { readonly stdout: string };
    expect(JSON.parse(stdout)).toMatchObject({
      ok: false,
      error: { code: "UNSUPPORTED_OUTPUT_COMBINATION" },
    });
  });

  it("preserves normal output and sanitizes text and JSON validation errors", () => {
    expect(sanitizeCliOutput("result: ok\n")).toBe("result: ok\n");
    expect(sanitizeCliOutput("result: VALIDATION_ERROR\n")).toBe(
      "result: VALIDATION_ERROR\n",
    );
    const raw =
      'code: VALIDATION_ERROR\nmessage: "raw Zod details"\nfieldErrors: SECRET\n';
    expect(sanitizeCliOutput(raw)).toBe(
      'code: VALIDATION_ERROR\nmessage: "REA could not read the command arguments. Run `rea --help`, correct the arguments, then try again."\n',
    );
    expect(
      JSON.parse(
        sanitizeCliOutput(
          JSON.stringify({
            code: "VALIDATION_ERROR",
            message: "raw Zod details",
            fieldErrors: [{ code: "invalid_type" }],
          }),
        ),
      ),
    ).toEqual({
      code: "VALIDATION_ERROR",
      message:
        "REA could not read the command arguments. Run `rea --help`, correct the arguments, then try again.",
    });
    expect(
      JSON.parse(
        sanitizeCliOutput(
          JSON.stringify({
            ok: false,
            error: {
              code: "VALIDATION_ERROR",
              message: "raw Zod details",
              fieldErrors: [{ code: "invalid_type" }],
            },
            meta: { command: "analyze" },
          }),
        ),
      ),
    ).toEqual({
      ok: false,
      error: {
        code: "VALIDATION_ERROR",
        message:
          "REA could not read the command arguments. Run `rea --help`, correct the arguments, then try again.",
      },
      meta: { command: "analyze" },
    });
  });

  it(
    "sanitizes a real missing-argument dispatcher failure",
    async () => {
      await expect(
        execFileAsync(process.execPath, ["scripts/rea.mjs", "analyze"], {
          cwd: process.cwd(),
        }),
      ).rejects.toMatchObject({
        stdout:
          'code: VALIDATION_ERROR\nmessage: "REA could not read the command arguments. Run `rea --help`, correct the arguments, then try again."\n',
      });
      await expect(
        execFileAsync(
          process.execPath,
          ["scripts/rea.mjs", "--full-output", "--json", "analyze"],
          { cwd: process.cwd() },
        ),
      ).rejects.toMatchObject({
        stdout: expect.not.stringContaining("fieldErrors"),
      });
      await expect(
        execFileAsync(
          process.execPath,
          ["scripts/rea.mjs", "--full-output", "analyze"],
          { cwd: process.cwd() },
        ),
      ).rejects.toMatchObject({
        stdout:
          'ok: false\nerror:\n  code: VALIDATION_ERROR\n  message: "REA could not read the command arguments. Run `rea --help`, correct the arguments, then try again."\n',
      });
    },
    CLI_INTEGRATION_TIMEOUT_MS,
  );

  it(
    "preserves artifact diagnostics in ordinary and full JSON output",
    async () => {
      const root = await createTestTempDirectory("rea-cli-diagnostics-");
      const source = join(root, "source");
      await mkdir(source);
      await writeFile(join(source, "main.js"), "console.log('ok');\n");
      const archive = join(root, "fixture.asar");
      await createPackageWithOptions(source, archive, { unpack: "*.js" });
      await writeFile(join(`${archive}.unpacked`, "main.js"), "changed();\n");

      for (const flags of [["--json"], ["--full-output", "--json"]]) {
        const execution = execFileAsync(process.execPath, [
          "scripts/rea.mjs",
          ...flags,
          "inventory-artifact",
          archive,
        ]);
        const failure = await execution.catch((cause: unknown) => cause);
        expect(failure).toMatchObject({ code: 1 });
        const { stdout } = failure as { readonly stdout: string };
        const output = JSON.stringify(JSON.parse(stdout) as unknown);
        expect(output).toContain('"logical_path":"main.js"');
        expect(output).toMatch(/"declared_sha256":"[a-f0-9]{64}"/u);
        expect(output).toMatch(/"calculated_sha256":"[a-f0-9]{64}"/u);
        expect(output).toContain('"unpacked":true');
      }
    },
    CLI_INTEGRATION_TIMEOUT_MS,
  );

  it(
    "keeps operation failure status independent of output controls",
    async () => {
      const variants = [
        ["--format", "toon"],
        ["--format", "json"],
        ["--format", "yaml"],
        ["--format", "md"],
        ["--format", "jsonl"],
        ["--full-output", "--json"],
        ["--filter-output", "category", "--json"],
        ["--token-limit", "5", "--json"],
        ["--token-count", "--json"],
      ];

      for (const flags of variants) {
        await expect(
          execFileAsync(process.execPath, [
            "scripts/rea.mjs",
            ...flags,
            "investigate-versions",
            "/tmp/left",
            "/tmp/right",
            "/tmp/workspace.json",
          ]),
        ).rejects.toMatchObject({ code: 1, stdout: expect.any(String) });
      }
    },
    CLI_VARIANT_TIMEOUT_MS,
  );

  it(
    "keeps failure logs out of structured stdout",
    async () => {
      const execution = execFileAsync(
        process.execPath,
        [
          "scripts/rea.mjs",
          "--json",
          "investigate-versions",
          "/tmp/left",
          "/tmp/right",
          "/tmp/workspace.json",
        ],
        { env: { ...process.env, REA_LOG_LEVEL: "error" } },
      );
      const failure = await execution.catch((cause: unknown) => cause);
      expect(failure).toMatchObject({
        code: 1,
        stderr: expect.stringContaining('"status":"error"'),
      });
      const { stdout } = failure as { readonly stdout: string };
      expect(JSON.parse(stdout)).toMatchObject({ error: "ApprovalRequired" });
    },
    CLI_INTEGRATION_TIMEOUT_MS,
  );
});