import assert from "node:assert/strict";
import { test } from "node:test";
import { capabilityId as id, valueType, validateWorkspaceRevision } from "../src/capability-model/index.js";
import { contentDigest, planEvolution, runtimeContracts, storageContracts } from "../src/capability-model/evolution.js";
import { capabilityFixtureSource, capabilityResourceSources, compileCapabilityFixture, makeValidCapabilityWorkspace } from "./fixtures/capability-model.js";

test("QX carries stable conformance IDs and implementation semantic majors", () => {
  const result = compileCapabilityFixture({
    workspace: capabilityFixtureSource.replace("conform Project as Named {", 'conform Project as Named id "conformance:project:named" semantic-major 3 {'),
    todo: capabilityResourceSources.todo.replace('revision "package:todo-runtime@1" {', 'revision "package:todo-runtime@1" semantic-major 2 {'),
  });
  assert.ok(result.ok, JSON.stringify(result));
  assert.equal(result.workspace.conformances[0]!.id, "conformance:project:named");
  assert.equal(result.workspace.conformances[0]!.semanticMajor, 3);
  assert.equal(result.workspace.packageImports[0]!.semanticMajor, 2);
});

test("invalid majors and duplicate owner identities are rejected", () => {
  const workspace = makeValidCapabilityWorkspace();
  workspace.packageImports[0]!.semanticMajor = 0;
  workspace.conformances[0]!.semanticMajor = 1.5;
  workspace.conformances[0]!.id = id.conformance("same");
  workspace.conformances[1]!.id = id.conformance("same");
  const issues = validateWorkspaceRevision(workspace);
  assert.equal(issues.filter((entry) => entry.code === "invalid-semantic-major").length, 2);
  assert.ok(issues.some((entry) => entry.code === "duplicate-conformance-id"));
});

test("hashing is canonical and rejects values outside the persisted JSON contract", () => {
  assert.equal(contentDigest({ z: 1, a: { y: 3, b: 2 } }), contentDigest({ a: { b: 2, y: 3 }, z: 1 }));
  assert.notEqual(contentDigest([1, 2]), contentDigest([2, 1]));
  assert.throws(() => contentDigest(NaN));
  assert.throws(() => contentDigest(new Date()));
});

test("a workspace root change and display names do not restart package runtimes", () => {
  const before = makeValidCapabilityWorkspace();
  const after = structuredClone(before);
  after.id = id.workspaceRevision("next");
  after.sourceRootCommit = "f".repeat(40);
  after.atoms[0]!.displayName = "Renamed";
  after.sharedAttachments[0]!.displayName = "Renamed storage";
  after.conformances.reverse();
  after.interfaceImports.reverse();
  const report = planEvolution(before, after, { allowLegacy: true });
  assert.deepEqual(report.runtimeActions.map((entry) => entry.action), ["keep"]);
  assert.deepEqual(report.storageChanges, []);
  assert.deepEqual(report.packageChecks, []);
});

test("consumer changes preserve unrelated resource owners", () => {
  const before = makeValidCapabilityWorkspace();
  before.packageImports.push({ packageId: id.package("package:resource-owner"), revisionId: id.packageRevision("package:resource-owner@1"),
    displayName: "ResourceOwner", source: { repository: "https://example.org/owner.git", commit: "a".repeat(40) },
    exports: [{ kind: "function", id: id.packageExport("export:owner:ping"), displayName: "ping", inputType: valueType.unit, outputType: valueType.unit, dependencyPorts: [] }] });
  const after = structuredClone(before);
  after.packageImports[0]!.source.commit = "e".repeat(40);
  const actions = planEvolution(before, after, { allowLegacy: true }).runtimeActions;
  assert.equal(actions.find((entry) => entry.groupId === "package:resource-owner")!.action, "keep");
  assert.equal(actions.find((entry) => entry.groupId === "package:todo-runtime")!.action, "replace");
});

test("storage defaults and ownership changes invalidate consumers without requiring a major", () => {
  const before = makeValidCapabilityWorkspace();
  const after = structuredClone(before);
  const slot = after.sharedAttachments[0]!;
  assert.equal(slot.kind, "state");
  if (slot.kind === "state") slot.defaultValue = "Different default";
  const report = planEvolution(before, after, { allowLegacy: true });
  assert.equal(report.storageChanges.length, 1);
  assert.deepEqual(report.migrationRequired, []);
  assert.equal(report.runtimeActions[0]!.action, "replace");
  assert.deepEqual(report.reviews, []);
  assert.notDeepEqual(storageContracts(before), storageContracts(after));
});

test("semantic review receipts cover exact consumer/provider contracts", () => {
  const before = makeValidCapabilityWorkspace();
  before.conformances[0]!.id = id.conformance("conformance:project:named");
  const after = structuredClone(before);
  after.conformances[0]!.semanticMajor = 2;
  const report = planEvolution(before, after, { allowLegacy: true });
  assert.equal(report.reviews.length, 1);
  assert.equal(report.reviews[0]!.accepted, false);
  const receipt = { requirementDigest: report.reviews[0]!.requirementDigest, decision: "accepted-unchanged" as const,
    rationale: "Reviewed the semantic change against summary behavior", agentId: "workspace-agent" };
  assert.equal(planEvolution(before, after, { allowLegacy: true, reviews: [receipt] }).reviews[0]!.accepted, true);
  after.packageImports[0]!.source.commit = "f".repeat(40);
  assert.equal(planEvolution(before, after, { allowLegacy: true, reviews: [receipt] }).reviews[0]!.accepted, false);
});

test("evolution enrollment is explicit and never erases legacy ownership", () => {
  const workspace = makeValidCapabilityWorkspace();
  const report = planEvolution(workspace, workspace);
  assert.ok(report.blockers.some((entry) => entry.includes("workspace-shared")));
  assert.ok(report.blockers.some((entry) => entry.includes("authored ID")));
  assert.equal(runtimeContracts(workspace).length, 1);
  assert.throws(() => planEvolution(workspace, { ...workspace, workspaceId: id.workspace("other") }), /different workspace/);
});