import assert from "node:assert/strict";
import { test } from "node:test";
import { generatePortableTypeScriptBindings } from "../src/bindings/portable.js";
import { compileExecutionPlan } from "../src/execution-world/plan.js";
import { loadReaderWorkspace } from "./reader-fixture.js";

test("service bindings depend on their consumed contract, not workspace or source provenance", async () => {
  const schema = compileExecutionPlan(await loadReaderWorkspace()).definition.bindingSchema;
  const pkg = schema.packages[0]!;
  const before = generatePortableTypeScriptBindings(schema, pkg.revisionId, { target: "server" });
  const other = structuredClone(pkg);
  other.revisionId = "unrelated@1" as typeof other.revisionId;
  other.exports = [];
  schema.packages.push(other);
  pkg.source.commit = "b".repeat(40);
  pkg.revisionId = "same-service-new-source@2" as typeof pkg.revisionId;
  assert.equal(generatePortableTypeScriptBindings(schema, pkg.revisionId, { target: "server" }), before);
  assert.doesNotMatch(before, /export const (bindingDigest|packageRevision)/);
  pkg.exports[0]!.inputType = { kind: "scalar", name: "bool" };
  assert.notEqual(generatePortableTypeScriptBindings(schema, pkg.revisionId, { target: "server" }), before);
});

test("reader portable bindings have selected facets, creation inputs and stable keyed calls", async () => {
  const schema = compileExecutionPlan(await loadReaderWorkspace()).definition.bindingSchema;
  const source = generatePortableTypeScriptBindings(schema, "package:reader-runtime@1", { target: "browser" });
  assert.match(source, /readonly "sourceRevision.get": \(\) => Promise<string>/);
  assert.match(
    source,
    /readonly "highlights.connect": \(input: ManagedReference<"atom", "atom:reader:highlight">, options: MutationKey\)/,
  );
  assert.match(source, /readonly "createDocument"/);
  assert.match(source, /readonly "create":/);
  assert.match(source, /readonly "comments": ReadonlyArray/);
  assert.doesNotMatch(source, /"highlights.resolve"|context\.conform|objectId|"live"/);
  assert.equal(source, generatePortableTypeScriptBindings(schema, "package:reader-runtime@1", { target: "browser" }));
  const server = generatePortableTypeScriptBindings(schema, "package:reader-runtime@1", { target: "server" });
  assert.equal(source.replace('target = "browser"', 'target = "server"'), server);
});

test("generation rejects remote dependencies, wrong effects and unsupported shapes explicitly", async () => {
  const schema = compileExecutionPlan(await loadReaderWorkspace()).definition.bindingSchema;
  const generate = () => generatePortableTypeScriptBindings(schema, "package:reader-runtime@1", { target: "browser" });
  const entry = schema.packages[0]!.exports.find((e) => e.displayName === "addHighlight")!;
  entry.execution = { kind: "snapshot", targets: ["browser"] };
  assert.throws(generate, /Snapshot context cannot expose mutation ports/);
  entry.execution = { kind: "transaction", targets: ["browser"] };
  const iface = schema.interfaces.find((i) => i.revisionId === "interface:reader:document-data@1")!;
  const getter = iface.members[0]!.operations[0]!;
  getter.execution = { kind: "remote" };
  assert.throws(generate, /not an object call available in portable target browser/);
  getter.execution = { kind: "snapshot", targets: ["browser", "server"] };
  entry.dependencyPorts[0]!.requirement = { kind: "reflection", selectors: ["active"] };
  assert.throws(generate, /Only checked presentation metadata is portable/);
});

test("closed generic portable handlers have distinct concrete codecs and no universal casts", async () => {
  const { portableGenericPlan } = await import("./portable-generic-fixture.js");
  const plan = portableGenericPlan();
  const schema = plan.definition.bindingSchema;
  const pkg = schema.packages[0]!;
  assert.equal(pkg.exports.length, 2);
  const generated = generatePortableTypeScriptBindings(schema, pkg.revisionId, { target: "browser" });
  assert.match(generated, /readonly input: string/);
  assert.match(generated, /readonly input: ReadonlyArray<bigint>/);
  for (const entry of pkg.exports) {
    assert.ok(entry.application);
    assert.ok(generated.includes(JSON.stringify(entry.id)));
    assert.ok(generated.includes(JSON.stringify(entry.displayName)));
  }
  assert.notEqual(pkg.exports[0]!.displayName, pkg.exports[1]!.displayName);
  assert.equal(
    generated.replace('target = "browser"', 'target = "server"'),
    generatePortableTypeScriptBindings(schema, pkg.revisionId, { target: "server" }),
  );
});

test("a portable subset of a mixed interface excludes remote dependencies", async () => {
  const schema = compileExecutionPlan(await loadReaderWorkspace()).definition.bindingSchema;
  const entry = schema.packages.flatMap((p) => p.exports).find((e) => e.displayName === "addHighlight")!;
  const iface = schema.interfaces.find((i) => i.revisionId === "interface:reader:document-data@1")!;
  const selected = entry.dependencyPorts.find((p) => p.requirement.kind === "interface")!.requirement;
  assert.equal(selected.kind, "interface");
  if (selected.kind !== "interface") throw Error("interface required");
  const operation = structuredClone(iface.members[0]!.operations[0]!);
  operation.id = "document:remote:get" as typeof operation.id;
  operation.execution = { kind: "remote" };
  iface.members.push({
    ...structuredClone(iface.members[0]!),
    id: "document:remote" as (typeof iface.members)[0]["id"],
    displayName: "remote",
    operations: [operation],
  });
  const generate = () => generatePortableTypeScriptBindings(schema, "package:reader-runtime@1", { target: "browser" });
  assert.doesNotMatch(generate(), /readonly "remote.get"/);
  selected.operations!.push(operation.id);
  assert.throws(generate, /select a portable subset/);
});

test("server projection descriptors are distinct from canonical inputs and have result decoders", async () => {
  const { generatePortableClientBindings } = await import("../src/bindings/portable-client.js");
  const plan = compileExecutionPlan(await loadReaderWorkspace());
  const source = generatePortableClientBindings(plan, { target: "browser" });
  const projections = source.slice(
    source.indexOf("export const serverProjections"),
    source.indexOf("export const results"),
  );
  assert.match(projections, /ConfirmedColor/);
  assert.match(projections, /satisfies ServerProjection/);
  assert.match(source.slice(source.indexOf("export const results")), /ConfirmedColor/);
  await assert.rejects(
    loadReaderWorkspace((name, text) =>
      name === "queries/confirmed-color.graphql" ? text.replace("color", "color @live") : text,
    ),
    /@live is retired/,
  );
});

test("static interface ports keep unit arguments explicit for generic factory composition", async () => {
  const schema = compileExecutionPlan(await loadReaderWorkspace()).definition.bindingSchema;
  const entry = schema.packages.flatMap((p) => p.exports).find((e) => e.displayName === "addHighlight")!;
  const port = entry.dependencyPorts.find((p) => p.requirement.kind === "interface")!;
  if (port.requirement.kind !== "interface") throw Error("interface required");
  const requirement = port.requirement;
  const iface = schema.interfaces.find((i) => i.revisionId === requirement.interfaceRevisionId)!;
  const op = iface.members.flatMap((m) => m.operations).find((o) => o.id === requirement.operations![0])!;
  op.scope = "class";
  op.inputType = { kind: "builtin", name: "unit" };
  port.requirement.operations = [op.id];
  delete port.requirement.receiver;
  const generated = generatePortableTypeScriptBindings(schema, "package:reader-runtime@1", { target: "browser" });
  assert.match(generated, /"explicitInput": true/);
  assert.match(generated, /input: null/);
});