// Row 199 (#1697): an agent's own git identity, its publish grant, the project's upstream and the
// credential store reference. Design D1, D8, D9 step 2 and D9c.
import { test } from "node:test";
import assert from "node:assert/strict";
import { join } from "node:path";
import { BusinessError, parseCredentialRef, validateBusinessDocument } from "../src/index.mjs";
import { forkProblem, forkUrl } from "../src/vocabulary.mjs";
import { businessDoc, FAR_DATE, REPO_ROLES, tmp } from "./helpers.mjs";

function refuses(fn, pattern) {
  assert.throws(fn, (error) => {
    assert.ok(error instanceof BusinessError, `expected BusinessError, got ${error}`);
    assert.equal(error.exitCode, 2);
    assert.match(error.message, pattern);
    return true;
  });
}

const IDENTITY = { name: "Coder", email: "coder@example.com", gitea: { url: "https://git.example", user: "acme-coder" } };

// The fixture with coder granted publish on stack, whose upstream is mosaic/stack.
function check(mutate) {
  const root = tmp();
  const doc = businessDoc(root);
  doc.projects.stack.remote = "https://git.example/mosaic/stack";
  doc.roles.coder.identity = structuredClone(IDENTITY);
  doc.roles.coder.publish = ["stack"];
  mutate?.(doc, root);
  return validateBusinessDocument(doc, join(root, "businesses", "acme.json"), { rolesDir: REPO_ROLES });
}

test("today's files load unchanged: identity, publish and remote are optional", () => {
  const root = tmp();
  const business = validateBusinessDocument(businessDoc(root), join(root, "businesses", "acme.json"), { rolesDir: REPO_ROLES });
  assert.equal(business.roles.coder.identity, undefined);
  assert.equal(business.roles.coder.publish, undefined);
  assert.equal(business.projects.stack.remote, undefined);
});

test("a granted agent loads with its identity, grant and the project's upstream", () => {
  const business = check();
  assert.deepEqual({ ...business.roles.coder.identity, gitea: { ...business.roles.coder.identity.gitea } }, IDENTITY);
  assert.deepEqual([...business.roles.coder.publish], ["stack"]);
  assert.equal(business.projects.stack.remote, "https://git.example/mosaic/stack");
});

test("N10: publish needs identity and a gitea definition, and the error names the grant", () => {
  refuses(() => check((d) => { delete d.roles.coder.identity; }), /roles\.coder\.publish needs identity and a gitea definition/);
  // Row 285 (mos-1333 item 3): the chief's definition now declares gitea, so this case names an
  // instance whose definition has none.
  refuses(() => check((d) => { d.roles.helper = { definition: "assistant", holder: "mos", identity: structuredClone(IDENTITY), publish: ["stack"] }; }),
    /roles\.helper\.publish needs identity and a gitea definition/);
});

// Row 285 (mos-1333 item 4, brief :1829): the chief's grant needs identity and publish on the
// instance, so a chief with its gitea reference loads with both. X-G1 (gitea-grant.test) shows the
// same chief refuses at raise.
test("row 285: a chief with its gitea reference, identity and publish loads", async () => {
  // Amendment 1 (mos-1580, sage-4060): this read reference belongs to a library business.
  const { mappingEntry } = await import("../../library/tests/helpers.mjs");
  const identity = { name: "Chief", email: "chief@example.com", gitea: { url: "https://git.example", user: "acme-chief" } };
  const business = check((d) => {
    d.projects.books = mappingEntry();
    d.roles.chief.credentials = { gitea: { store: true, rotateBy: FAR_DATE } };
    d.roles.chief.identity = structuredClone(identity);
    d.roles.chief.publish = ["stack"];
  });
  assert.deepEqual({ ...business.roles.chief.identity, gitea: { ...business.roles.chief.identity.gitea } }, identity);
  assert.deepEqual([...business.roles.chief.publish], ["stack"]);
  assert.deepEqual(Object.keys(business.roles.chief.credentials), ["gitea"]);
});

test("publish names declared projects that have a remote, each once", () => {
  refuses(() => check((d) => { d.roles.coder.publish = ["books"]; }), /publish names books, which the business file doesn't declare/);
  refuses(() => check((d) => { delete d.projects.stack.remote; }), /publish names stack, which has no "remote"/);
  refuses(() => check((d) => { d.roles.coder.publish = []; }), /publish/);
  refuses(() => check((d) => { d.roles.coder.publish = ["stack", "stack"]; }), /publish/);
});

test("identity fields are checked", () => {
  refuses(() => check((d) => { d.roles.coder.identity.email = "coder"; }), /identity\.email/);
  refuses(() => check((d) => { d.roles.coder.identity.name = "a\nb"; }), /identity\.name/);
  refuses(() => check((d) => { d.roles.coder.identity.extra = 1; }), /identity/);
  refuses(() => check((d) => { d.roles.coder.identity.gitea.user = ".."; }), /gitea\.user/);
  refuses(() => check((d) => { d.roles.coder.identity.gitea.user = "a/b"; }), /gitea\.user/);
});

test("D9c: the upstream must be its own normalized form, exactly /OWNER/REPO", () => {
  const bad = {
    "a dot segment": "https://git.example/acme-coder/../mosaic/stack",
    "an encoded dot segment": "https://git.example/acme-coder/%2e%2e/mosaic/stack",
    "an extra segment": "https://git.example/mosaic/stack/more",
    "a missing segment": "https://git.example/stack",
    "a trailing slash": "https://git.example/mosaic/stack/",
    userinfo: "https://u:p@git.example/mosaic/stack",
    "a query": "https://git.example/mosaic/stack?x=1",
    "a fragment": "https://git.example/mosaic/stack#f",
    "an explicit :443": "https://git.example:443/mosaic/stack",
    "an upper-case host": "https://GIT.example/mosaic/stack",
    "a backslash": "https://git.example\\mosaic\\stack",
    "a name outside Gitea's rule": "https://git.example/mosaic/st%41ck",
    "a dot-dot repo": "https://git.example/mosaic/...git",
    http: "http://git.example/mosaic/stack",
  };
  for (const [what, remote] of Object.entries(bad)) {
    assert.throws(() => check((d) => { d.projects.stack.remote = remote; }), BusinessError, what);
  }
});

test("D9c: one .git is stripped, and the fork is built from the stripped name", () => {
  assert.equal(check((d) => { d.projects.stack.remote = "https://git.example/mosaic/stack.git"; }).projects.stack.remote,
    "https://git.example/mosaic/stack.git");
  assert.equal(forkUrl("https://git.example/mosaic/stack.git", "acme-coder"), "https://git.example/acme-coder/stack");
  assert.equal(forkUrl("https://git.example:3000/mosaic/stack", "acme-coder"), "https://git.example:3000/acme-coder/stack");
});

test("D9c: gitea.url names the instance only", () => {
  for (const url of ["https://git.example/gitea", "https://git.example/gitea/", "https://git.example/?x", "https://git.example:443", "http://git.example"]) {
    assert.throws(() => check((d) => { d.roles.coder.identity.gitea.url = url; }), BusinessError, url);
  }
  check((d) => { d.roles.coder.identity.gitea.url = "https://git.example/"; });
});

test("the upstream's host and port must be the agent's Gitea's", () => {
  refuses(() => check((d) => { d.projects.stack.remote = "https://other.example/mosaic/stack"; }), /remote-host-mismatch/);
  refuses(() => check((d) => { d.projects.stack.remote = "https://git.example:3000/mosaic/stack"; }), /remote-host-mismatch/);
  assert.equal(forkProblem("https://git.example/mosaic/stack", { gitea: { url: "https://git.example/", user: "u" } }), null);
});

test("remote-not-fork: an upstream the agent's own user owns, compared without case", () => {
  refuses(() => check((d) => { d.projects.stack.remote = "https://git.example/acme-coder/stack"; }), /remote-not-fork/);
  refuses(() => check((d) => { d.projects.stack.remote = "https://git.example/ACME-Coder/stack"; }), /remote-not-fork/);
});

test("store references: own path only (design D1, D3a)", () => {
  const store = { configDir: "/cfg", business: "acme", agent: "coder" };
  const ref = parseCredentialRef({ store: true, rotateBy: FAR_DATE }, "gitea", "r", { store });
  assert.equal(ref.file, "/cfg/secrets/agents/acme/coder/gitea");
  assert.equal(ref.store, true);
  refuses(() => parseCredentialRef({ store: true, rotateBy: FAR_DATE }, "gitea", "r"), /store/);
  refuses(() => parseCredentialRef({ store: true, file: "/a", rotateBy: FAR_DATE }, "gitea", "r", { store }), /exactly one/);
  refuses(() => parseCredentialRef({ file: "/cfg/secrets/agents/acme/pm/gitea", rotateBy: FAR_DATE }, "gitea", "r", { store }),
    /credential-not-yours/);
  assert.equal(parseCredentialRef({ file: "/cfg/secrets/agents/acme/coder/gitea", rotateBy: FAR_DATE }, "gitea", "r", { store }).file,
    "/cfg/secrets/agents/acme/coder/gitea");
});