#!/usr/bin/env bash
# Test: writing through FUSE mount creates a dirty file in VFS
#
# Verifies that a file written through the mount point shows up as a
# pending upload (dirty) in the rclone VFS stats when write-back delay
# is long enough to observe it.
set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
source "$SCRIPT_DIR/../harness/helpers.sh"
source "$SCRIPT_DIR/../harness/mock-nas.sh"

require_root
setup_test_env
trap teardown_test_env EXIT

# Start mock NAS
start_mock_nas

# Generate config with a long write-back delay so the file stays dirty
gen_config write_back=60s

# Start warpgate and wait for readiness
start_warpgate
wait_for_mount
wait_for_rc_api

# Write a file through the FUSE mount
echo "test-write" > "$TEST_MOUNT/written.txt"

# Allow a moment for VFS to register the write
sleep 2

# Verify the file is counted as dirty (not yet written back)
dirty=$(get_dirty_count)
if [[ "$dirty" -lt 1 ]]; then
    echo "FAIL: expected dirty count > 0, got $dirty" >&2
    exit 1
fi

# Verify the file is readable through the mount
assert_file_content "$TEST_MOUNT/written.txt" "test-write"

echo "PASS: $(basename "$0" .sh)"