import { describe, it, assert, beforeAll } from "vitest";
import { promises as fs } from "fs";
import path from "path";
import { ScriptSchema, type Script } from "@/app/json-editor/_schemas/schemas";
import { Metadata } from "@/lib/types";

const publicJsonPath = path.join(process.cwd(), 'public/json');
const getJsonDirectory = async () => {
  if (!(await fs.stat(publicJsonPath).catch(() => null))) {
    throw new Error(`JSON path file not found: ${publicJsonPath}`);
  }
  const jsonPath = (await fs.readFile(publicJsonPath, "utf-8")).trim();
  return path.resolve(process.cwd(), jsonPath);
};


const jsonDir = await getJsonDirectory();
const metadataFileName = "metadata.json";
const encoding = "utf-8";

const fileNames = (await fs.readdir(jsonDir))
  .filter((fileName) => fileName !== metadataFileName)

describe.each(fileNames)("%s", async (fileName) => {
  let script: Script;

  beforeAll(async () => {
    const filePath = path.resolve(jsonDir, fileName);
    const fileContent = await fs.readFile(filePath, encoding)
    script = JSON.parse(fileContent);
  })

  it("should have valid json according to script schema", () => {
    ScriptSchema.parse(script);
  });

  it("should have a corresponding script file", () => {
    script.install_methods.forEach((method) => {
      const scriptPath = path.resolve("..", method.script)
      assert(fs.stat(scriptPath), `Script file not found: ${scriptPath}`)
    })
  });
})

describe(`${metadataFileName}`, async () => {
  let metadata: Metadata;

  beforeAll(async () => {
    const filePath = path.resolve(jsonDir, metadataFileName);
    const fileContent = await fs.readFile(filePath, encoding)
    metadata = JSON.parse(fileContent);
  })

  it("should have valid json according to metadata schema", () => {
    // TODO: create zod schema for metadata. Move zod schemas to /lib/types.ts
    assert(metadata.categories.length > 0);
    metadata.categories.forEach((category) => {
      assert.isString(category.name)
      assert.isNumber(category.id)
      assert.isNumber(category.sort_order)
    });
  });
})