# ========= 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 asyncio
import sys

from mirage import MountMode, Workspace
from mirage.resource.ram import RAMResource

resource = RAMResource()


async def main():
    ws = Workspace({"/data": resource}, mode=MountMode.WRITE)

    await ws.execute('echo "hello world" | tee /data/hello.txt')
    await ws.execute("mkdir /data/sub")
    await ws.execute('echo "nested" | tee /data/sub/nested.txt')

    with ws:
        vos = sys.modules["os"]
        print("=== VFS MODE ===\n")

        print("--- os.listdir() ---")
        entries = vos.listdir("/data")
        for e in entries:
            print(f"  {e}")

        print("\n--- open() + read ---")
        with open("/data/hello.txt") as f:
            print(f"  {f.read().strip()}")

        print("\n--- os.path.exists() ---")
        print(f"  hello.txt: {vos.path.exists('/data/hello.txt')}")
        print(f"  nope.txt: {vos.path.exists('/data/nope.txt')}")

        print("\n--- os.path.isdir() ---")
        print(f"  /data/sub: {vos.path.isdir('/data/sub')}")

        print("\n--- os.listdir() sub ---")
        for e in vos.listdir("/data/sub"):
            print(f"  {e}")

        records = ws.ops.records
        total = sum(r.bytes for r in records)
        print(f"\nStats: {len(records)} ops, {total} bytes transferred")


asyncio.run(main())