// scripts/mosaic-task.mjs list and show read through this package. These
// spawn the real script against a seeded data root and a scratch config.
import { test } from "node:test";
import assert from "node:assert/strict";
import fs from "node:fs";
import path from "node:path";
import { spawnSync } from "node:child_process";
import { fileURLToPath } from "node:url";
import { RESULT, scratch, write } from "./helpers.mjs";

const ROOT = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..", "..", "..");
const A = "r-20260101T000000Z-aaaaaa";
const B = "r-20260101T000100Z-bbbbbb";

function task(t, dataRoot, ...args) {
  const config = path.join(path.dirname(dataRoot), "config.json");
  write(config, { configVersion: 1, environment: "development", dataRoot, execution: { backend: "docker", provider: "zai", model: "m" } });
  const env = { ...process.env, MOSAIC_CONFIG: config };
  delete env.NODE_TEST_CONTEXT;
  const proc = spawnSync(process.execPath, [path.join(ROOT, "scripts", "mosaic-task.mjs"), ...args], { cwd: ROOT, env, encoding: "utf8" });
  return { status: proc.status, stdout: proc.stdout, stderr: proc.stderr };
}

test("list prints each run in the established format", (t) => {
  const { dataRoot } = scratch(t);
  write(path.join(dataRoot, "runs", A, "result.json"), { ...RESULT, workspace: "ws1", session: "s1" });
  write(path.join(dataRoot, "runs", B, "task.json"), { id: "t" });
  const out = task(t, dataRoot, "list");
  assert.equal(out.status, 0, out.stderr);
  assert.equal(out.stdout,
    `${A}  succeeded  task=t-one              ws=ws1        session=s1\n` +
    `${B}  unknown    task=-                  ws=-          session=-\n`);
});

test("show prints the run in the established format", (t) => {
  const { dataRoot } = scratch(t);
  const dir = path.join(dataRoot, "runs", A);
  write(path.join(dir, "result.json"), { ...RESULT, missionId: "m", tools: ["read"], expectedExact: "hi" });
  write(path.join(dir, "mission.json"), { id: "m", objective: "obj" });
  const out = task(t, dataRoot, "show", A);
  assert.equal(out.status, 0, out.stderr);
  assert.equal(out.stdout, [
    `run:       ${A}`,
    "status:    succeeded",
    "task:      t-one",
    "mission:   m",
    "tools:     read",
    "adapter:   (see config) provider=zai model=m",
    'request:   "hi"',
    'response:  "hi"',
    'expected:  "hi"',
    "timing:    2026-01-01T00:00:00.000Z -> 2026-01-01T00:00:01.000Z (1000 ms)",
    "exit:      0",
    "mission snapshot: m - obj",
    `artifacts: ${fs.readdirSync(dir).join(", ")}`,
    "",
  ].join("\n"));
});

test("show of a missing run and an invalid id exit 4 as before", (t) => {
  const { dataRoot } = scratch(t);
  const missing = task(t, dataRoot, "show", A);
  assert.equal(missing.status, 4);
  assert.equal(missing.stderr, `mosaic-task: run not found: ${A} (under ${path.join(dataRoot, "runs")})\n`);
  const invalid = task(t, dataRoot, "show", "../x");
  assert.equal(invalid.status, 4);
  assert.equal(invalid.stderr, 'mosaic-task: invalid run id: "../x" (expected r-<id>)\n');
});

test("list and show refuse a runs directory linked out of the data root", (t) => {
  const { dataRoot, outside } = scratch(t);
  write(path.join(outside, A, "result.json"), RESULT);
  fs.symlinkSync(outside, path.join(dataRoot, "runs"));
  for (const args of [["list"], ["show", A]]) {
    const out = task(t, dataRoot, ...args);
    assert.equal(out.status, 4, args.join(" "));
    assert.equal(out.stdout, "");
    assert.match(out.stderr, /^mosaic-task: .*runs resolves outside the data root/);
  }
});

test("show refuses a run linked out of the data root; list reports it unknown", (t) => {
  const { dataRoot, outside } = scratch(t);
  write(path.join(outside, "result.json"), RESULT);
  fs.mkdirSync(path.join(dataRoot, "runs"));
  fs.symlinkSync(outside, path.join(dataRoot, "runs", A));
  const show = task(t, dataRoot, "show", A);
  assert.equal(show.status, 4);
  assert.equal(show.stdout, "");
  assert.match(show.stderr, /resolves outside the data root/);
  const list = task(t, dataRoot, "list");
  assert.equal(list.status, 0, list.stderr);
  assert.equal(list.stdout, `${A}  unknown    task=-                  ws=-          session=-\n`);
});

test("list shows an r- name that isn't a valid run id, as before", (t) => {
  const { dataRoot } = scratch(t);
  write(path.join(dataRoot, "runs", "r-.bad", "result.json"), RESULT);
  const out = task(t, dataRoot, "list");
  assert.equal(out.status, 0, out.stderr);
  assert.equal(out.stdout, "r-.bad  succeeded  task=t-one              ws=-          session=-\n");
});

test("show refuses an invalid id before reading the config", (t) => {
  const { dir } = scratch(t);
  const env = { ...process.env, MOSAIC_CONFIG: path.join(dir, "missing.json") };
  delete env.NODE_TEST_CONTEXT;
  const proc = spawnSync(process.execPath, [path.join(ROOT, "scripts", "mosaic-task.mjs"), "show", "../x"], { cwd: ROOT, env, encoding: "utf8" });
  assert.equal(proc.status, 4, proc.stderr);
  assert.equal(proc.stderr, 'mosaic-task: invalid run id: "../x" (expected r-<id>)\n');
});