import assert from "node:assert/strict";
import { mkdtemp, mkdir, writeFile, rm } from "node:fs/promises";
import os from "node:os";
import path from "node:path";
import test from "node:test";
import {
  compileCapabilityResourceRepository,
  type PackageQueryGenerator,
} from "../src/capability-language/assembly.js";
import { defaultQueryBudgets } from "../src/query/types.js";

test("an explicit non-React frontend emits checked queries for its own selection model", async (context) => {
  const directory = await mkdtemp(path.join(os.tmpdir(), "qx-query-generator-"));
  context.after(() => rm(directory, { recursive: true, force: true }));
  const commit = "a".repeat(40);
  const source = (name: string) => ({
    resolver: "git" as const,
    repository: `https://example.test/${name}.git`,
    commit,
  });
  const lock = (imports: string) => `quixos-lock version 1 {
    quixos source { repository "https://example.test/quixos.git"; commit "${commit}"; }
    ${imports}
  }`;
  const dependency = (name: string) =>
    `interface ${name} source { repository "${source(name).repository}"; commit "${commit}"; }`;
  for (const name of ["Sensor", "DeviceSelection", "Device"]) await mkdir(path.join(directory, name));
  await writeFile(path.join(directory, "Sensor", "quixos.lock"), lock(""));
  await writeFile(
    path.join(directory, "Sensor", "interface.qx"),
    `
    interface Sensor id "sensor" revision "sensor@1" {
      queryable value reading id "reading" : int64 { get id "reading:get"; }
    }
  `,
  );
  await writeFile(path.join(directory, "DeviceSelection", "quixos.lock"), lock(dependency("Sensor")));
  await writeFile(
    path.join(directory, "DeviceSelection", "interface.qx"),
    `
    import interface Sensor;
    interface DeviceSelection id "device-selection" revision "device-selection@1" {
      queryable relation selectedSensor id "selected-sensor" : optional-one interface Sensor {
        resolve id "selected-sensor:resolve";
      }
    }
  `,
  );
  await writeFile(path.join(directory, "Device", "quixos.lock"), lock(dependency("DeviceSelection")));
  await writeFile(
    path.join(directory, "Device", "package.qx"),
    `
    import interface DeviceSelection;
    package Device id "device" revision "device@1" {}
  `,
  );
  await writeFile(
    path.join(directory, "Device", "inputs.graphql"),
    `query Selected { root { selectedSensor { reading } } }`,
  );
  const options = {
    rootDirectory: path.join(directory, "Device"),
    kind: "package" as const,
    source: source("Device"),
    resolveResource: async (ref: { repository: string }) => ({
      directory: path.join(directory, new URL(ref.repository).pathname.slice(1, -4)),
    }),
  };
  const plain = await compileCapabilityResourceRepository(options);
  assert.equal(plain.resource.kind, "package");
  if (plain.resource.kind !== "package") throw Error("Expected package");
  assert.equal(plain.resource.revision.queries?.length ?? 0, 0);

  const generateQueries: PackageQueryGenerator = async ({ interfaces, readSource }) => ({
    queries: [
      {
        id: "selected-inputs",
        displayName: "SelectedInputs",
        root: {
          kind: "object",
          interface: interfaces.find((iface) => iface.displayName === "DeviceSelection")!.revisionId,
        },
        document: "generated/selected.graphql",
        operation: "Selected",
        fragments: [],
        views: [],
        allowances: [],
        budgets: { ...defaultQueryBudgets },
        watch: false,
        placement: { kind: "replica" },
      },
    ],
    documents: new Map([["generated/selected.graphql", await readSource("inputs.graphql")]]),
    compositions: [
      {
        id: "display",
        maxQueries: 1,
        input: {
          kind: "record",
          fields: {
            device: {
              kind: "object-ref",
              expectation: {
                kind: "interface",
                interfaceRevisionId: interfaces.find((iface) => iface.displayName === "DeviceSelection")!.revisionId,
              },
            },
          },
        },
        steps: [
          {
            name: "selection",
            query: "selected-inputs",
            root: { from: "input", path: ["device"] },
            arguments: { record: {} },
          },
        ],
      },
    ],
  });
  const built = await compileCapabilityResourceRepository({ ...options, generateQueries });
  assert.equal(built.resource.kind, "package");
  if (built.resource.kind !== "package") throw Error("Expected package");
  assert.equal(built.resource.revision.checkedQueries?.length, 1);
  const checked = built.resource.revision.checkedQueries![0]!;
  assert.equal(checked.declaration.root.interface, "device-selection@1");
  assert.ok(checked.effects.some((effect) => effect.memberId === "reading"));
  assert.ok(checked.effects.some((effect) => effect.memberId === "selected-sensor"));
  assert.ok(checked.definitionDigest);
  assert.equal(built.resource.revision.queryCompositions?.[0]?.dependencies[0]?.digest, checked.definitionDigest);
  assert.equal(
    built.resources.some((resource) => /React|PresentationMount/.test(resource.key)),
    false,
  );

  await assert.rejects(
    compileCapabilityResourceRepository({
      ...options,
      generateQueries: async (input) => {
        const result = await generateQueries(input);
        return {
          ...result,
          documents: new Map([["generated/selected.graphql", "query Selected { root { invented } }"]]),
        };
      },
    }),
    /invented/,
  );
  await assert.rejects(
    compileCapabilityResourceRepository({
      ...options,
      generateQueries: async (input) => {
        const result = await generateQueries(input);
        return { ...result, queries: [...result.queries, ...result.queries] };
      },
    }),
    /Generated query conflicts/,
  );
});