import assert from "node:assert/strict";
import { mkdtemp, mkdir, writeFile } from "node:fs/promises";
import { tmpdir } from "node:os";
import { join } from "node:path";
import test from "node:test";
import { calculateEnvIdentity, createPlan } from "./ci-plan.mjs";

test("plan reuses a present env image without expanding build scope", async () => {
  const root = await mkdtemp(join(tmpdir(), "agentrun-ci-plan-"));
  await mkdir(join(root, "src"));
  await writeFile(join(root, "src", "index.ts"), "export const ok = true;\n");
  const envIdentity = calculateEnvIdentity({
    root,
    envIdentityFiles: ["src"],
    buildArgs: ["BUN_IMAGE=oven/bun:1-alpine"],
    containerHttpProxy: "",
    containerHttpsProxy: "",
    containerNoProxy: "localhost",
  });
  await mkdir(join(root, "scripts", "ci"), { recursive: true });
  await writeFile(join(root, "scripts", "ci-plan.mjs"), "planner-only\n");
  await writeFile(join(root, "scripts", "ci-plan.test.mjs"), "planner-test-only\n");
  await writeFile(join(root, "scripts", "ci", "verify-reviewed-plan.mjs"), "admission-only\n");
  await writeFile(join(root, "scripts", "ci", "verify-reviewed-plan.test.mjs"), "admission-test-only\n");
  assert.equal(calculateEnvIdentity({
    root,
    envIdentityFiles: ["src", "scripts"],
    buildArgs: ["BUN_IMAGE=oven/bun:1-alpine"],
    containerHttpProxy: "",
    containerHttpsProxy: "",
    containerNoProxy: "localhost",
  }), calculateEnvIdentity({
    root,
    envIdentityFiles: ["src"],
    buildArgs: ["BUN_IMAGE=oven/bun:1-alpine"],
    containerHttpProxy: "",
    containerHttpsProxy: "",
    containerNoProxy: "localhost",
  }));
  const plan = createPlan({
    sourceCommitId: "a".repeat(40),
    baseCommitId: "b".repeat(40),
    target: "NC01",
    consumer: "agentrun-nc01-v02",
    lane: "nc01-v02",
    changedPaths: ["src/index.ts"],
    envIdentity,
    imageRepository: "127.0.0.1:5000/agentrun/agentrun-mgr-env",
    registryProbe: { status: "present", digest: `sha256:${"c".repeat(64)}` },
  });
  assert.deepEqual(plan.buildServices, []);
  assert.deepEqual(plan.rolloutServices, ["agentrun-mgr"]);
  assert.deepEqual(plan.affectedServices, ["agentrun-mgr"]);
  assert.deepEqual(plan.reusedServices, ["agentrun-mgr"]);
  assert.match(plan.planIdentity.value, /^sha256:[0-9a-f]{64}$/u);
});

test("plan exposes a missing env image as one build", () => {
  const plan = createPlan({
    sourceCommitId: "a".repeat(40),
    baseCommitId: "b".repeat(40),
    target: "NC01",
    consumer: "agentrun-nc01-v02",
    lane: "nc01-v02",
    changedPaths: ["src/index.ts"],
    envIdentity: "env-id",
    imageRepository: "127.0.0.1:5000/agentrun/agentrun-mgr-env",
    registryProbe: { status: "missing", digest: null },
  });
  assert.deepEqual(plan.buildServices, ["agentrun-mgr"]);
});