// ========= 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 { Accessor } from '../../../accessor/base.ts'
import type { PathSpec } from '../../../types.ts'
import { command, type CommandFnResult, type CommandOpts } from '../../config.ts'
import type { RegisteredCommand } from '../../config.ts'
import { specOf } from '../../spec/builtins.ts'
import { statGeneric } from '../generic/stat.ts'
import { overlaidStat, resolveGlobOf, type CommandIO } from '../generic_bind/index.ts'

/** Build the index-threaded stat override for one keyed store. */
export function makeStat<A extends Accessor>(
  resource: string,
  io: CommandIO<A>,
): RegisteredCommand[] {
  const statCore = io.stat
  const resolveGlob = resolveGlobOf(io)

  async function statCommand(
    accessor: A,
    paths: PathSpec[],
    _texts: string[],
    opts: CommandOpts,
  ): Promise<CommandFnResult> {
    const resolved =
      paths.length > 0 ? await resolveGlob(accessor, paths, opts.index ?? undefined) : []
    return statGeneric(
      resolved,
      opts,
      overlaidStat((p) => statCore(accessor, p, opts.index ?? undefined), opts.ns?.statOverlay),
    )
  }

  return command<A>({
    name: 'stat',
    resource,
    spec: specOf('stat'),
    fn: statCommand,
  })
}
