#!/usr/bin/env bash
# Test: warmup skips files that are already cached
#
# Verifies that running warmup a second time detects files already
# present in $CACHE_DIR/vfs/nas/... and skips re-reading them. The
# second run output should report all files as "skipped".
set -euo pipefail
SCRIPT_DIR="$(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 and create test files
start_mock_nas
nas_create_file "a.txt" 4
nas_create_file "b.txt" 4
nas_create_file "c.txt" 4

# Generate default config
gen_config

# Start warpgate and wait for readiness
start_warpgate
wait_for_mount
wait_for_rc_api

# First warmup — should cache all files
run_warpgate_cmd warmup "" > /dev/null 2>&1

# Verify all files are cached
assert_cached "a.txt"
assert_cached "b.txt"
assert_cached "c.txt"

# Second warmup — should skip all files since they are already cached
output=$(run_warpgate_cmd warmup "" 2>&1)

# Count the number of "skipped" occurrences (expect 3, one per file)
skipped_count=$(echo "$output" | grep -c "skipped" || true)
if [[ "$skipped_count" -lt 3 ]]; then
    echo "FAIL: expected at least 3 files skipped, got $skipped_count" >&2
    echo "  warmup output: $output" >&2
    exit 1
fi

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