import assert from "node:assert/strict"
import { spawnSync } from "node:child_process"
import { mkdirSync, mkdtempSync, rmSync, writeFileSync } from "node:fs"
import { tmpdir } from "node:os"
import { join, resolve } from "node:path"
import test from "node:test"

const script = resolve("scripts/test-dev-branch")
const supertestLegionScript = resolve("scripts/supertest-legion")

function normalizeMacosTempPath(path: string): string {
  return path.replace(/^\/private\/var\//, "/var/")
}

function normalizeEnvPaths(env: Record<string, string>): Record<string, string> {
  return Object.fromEntries(
    Object.entries(env).map(([key, value]) => [key, normalizeMacosTempPath(value)])
  )
}

test("test-dev-branch helper is valid Perl", () => {
  const result = spawnSync("perl", ["-c", script], {
    encoding: "utf8"
  })

  assert.equal(result.status, 0, result.stderr)
  assert.match(result.stderr, /syntax OK/)
})

test("test-dev-branch helper documents core commands", () => {
  const result = spawnSync(script, ["--help"], {
    encoding: "utf8"
  })

  assert.equal(result.status, 0, result.stderr)
  assert.match(result.stdout, /prepare/)
  assert.match(result.stdout, /reset/)
  assert.match(result.stdout, /ssh/)
  assert.match(result.stdout, /rpc/)
  assert.match(result.stdout, /--plugin NAME/)
  assert.match(result.stdout, /self-signed/)
})

test("supertest-legion helper is valid bash", () => {
  const result = spawnSync("bash", ["-n", supertestLegionScript], {
    encoding: "utf8"
  })

  assert.equal(result.status, 0, result.stderr)
})

test("supertest-legion helper documents ssh and rpc commands", () => {
  const result = spawnSync(supertestLegionScript, ["--help"], {
    encoding: "utf8"
  })

  assert.equal(result.status, 0, result.stderr)
  assert.match(result.stdout, /node list --json/)
  assert.match(result.stdout, /ssh <node>/)
  assert.match(result.stdout, /rpc <node>/)
  assert.match(result.stdout, /latest\.json/)
})

test("supertest-legion helper reuses latest run metadata", () => {
  const root = mkdtempSync(join(tmpdir(), "supertest-legion-"))
  const legionRepo = join(root, "legion")
  const latestPath = join(root, "latest.json")

  try {
    mkdirSync(legionRepo)
    writeFileSync(
      join(root, "latest.json"),
      JSON.stringify({
        legionRepo,
        legionCliEntry: "cli-main.ts",
        legionStateDir: join(root, "state"),
        legionCacheDir: join(root, "cache"),
        certMode: "self-signed"
      })
    )
    writeFileSync(
      join(root, "legion", "cli-main.ts"),
      `console.log(JSON.stringify({
        cwd: process.cwd(),
        args: process.argv.slice(2),
        env: {
          LEGION_STATE_DIR: process.env.LEGION_STATE_DIR,
          LEGION_CACHE_DIR: process.env.LEGION_CACHE_DIR,
          LEGION_APP_ROOT: process.env.LEGION_APP_ROOT,
          LEGION_TEST_CERT_MODE: process.env.LEGION_TEST_CERT_MODE
        }
      }))\n`
    )

    const result = spawnSync(supertestLegionScript, ["rpc", "node-a", "1 + 1"], {
      encoding: "utf8",
      env: {
        ...process.env,
        LEGION_UNLOCK_PASSWORD: "unlock-secret",
        SUPERTEST_LATEST: latestPath
      }
    })

    assert.equal(result.status, 0, result.stderr)
    const output = JSON.parse(result.stdout) as {
      cwd: string
      args: string[]
      env: Record<string, string>
    }
    assert.equal(normalizeMacosTempPath(output.cwd), normalizeMacosTempPath(legionRepo))
    assert.deepEqual(output.args, ["node", "rpc", "node-a", "--", "1 + 1"])
    assert.deepEqual(normalizeEnvPaths(output.env), {
      LEGION_STATE_DIR: normalizeMacosTempPath(join(root, "state")),
      LEGION_CACHE_DIR: normalizeMacosTempPath(join(root, "cache")),
      LEGION_APP_ROOT: normalizeMacosTempPath(legionRepo),
      LEGION_TEST_CERT_MODE: "self-signed"
    })
  } finally {
    rmSync(root, { recursive: true, force: true })
  }
})