// ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========

import type { PathSpec } from '../../../../../types.ts'
import { cmpGeneric } from '../../cmp.ts'
import type { CrossResult, DispatchFn } from '../types.ts'
import { crossOpts, flatten, streamOp } from '../utils.ts'
import type { FlagValue } from '../../../../spec/types.ts'

// Byte-compare two files on different mounts via the shared generic. Pure
// wiring: both sides are read through dispatch-relayed primitives.
export async function runCmp(
  scopes: PathSpec[],
  flagKwargs: Record<string, FlagValue>,
  dispatch: DispatchFn,
): Promise<CrossResult> {
  const flat = flatten(scopes)
  const opts = crossOpts(flagKwargs)
  const stream = streamOp(dispatch)
  const [out, io] = await cmpGeneric(flat, opts, stream)
  return [out, io]
}
