#!/usr/bin/env bash
# Test: `warpgate preset <name>` applies correct values to config file.
#
# Verifies that each preset writes the expected cache.max_size to the config,
# that CLI and API presets are unified (same source of truth), and that the
# command exits 0 for valid presets and non-zero for unknown ones.
#
# Does NOT require a running warpgate daemon — only needs a config file.
set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
source "$SCRIPT_DIR/../harness/helpers.sh"

setup_test_env
trap teardown_test_env EXIT

# Generate a minimal config pointing at a fake NAS (we don't connect to it)
gen_config "nas_host=127.0.0.1"

# ── photographer preset ──────────────────────────────────────────────────────

output=$("$WARPGATE_BIN" preset photographer -c "$TEST_CONFIG" 2>&1) || {
    echo "FAIL: 'warpgate preset photographer' exited non-zero"
    echo "  output: $output"
    exit 1
}

assert_output_contains "$output" "photographer"

# Verify cache.max_size was written as 500G
if ! grep -q 'max_size = "500G"' "$TEST_CONFIG"; then
    echo "FAIL: photographer preset did not write cache.max_size = \"500G\""
    echo "  config: $(grep max_size "$TEST_CONFIG" || echo '(not found)')"
    exit 1
fi

# Verify chunk_size = 256M
if ! grep -q 'chunk_size = "256M"' "$TEST_CONFIG"; then
    echo "FAIL: photographer preset did not write chunk_size = \"256M\""
    exit 1
fi

# Verify chunk_limit = 1G (field added in this round of fixes)
if ! grep -q 'chunk_limit = "1G"' "$TEST_CONFIG"; then
    echo "FAIL: photographer preset did not write chunk_limit = \"1G\""
    exit 1
fi

# Verify multi_thread_streams = 4
if ! grep -q 'multi_thread_streams = 4' "$TEST_CONFIG"; then
    echo "FAIL: photographer preset did not write multi_thread_streams = 4"
    exit 1
fi

# Verify webdav is disabled for photographer
if grep -q 'enable_webdav = true' "$TEST_CONFIG"; then
    echo "FAIL: photographer preset should NOT enable WebDAV"
    exit 1
fi

# ── video preset ─────────────────────────────────────────────────────────────

gen_config "nas_host=127.0.0.1"
output=$("$WARPGATE_BIN" preset video -c "$TEST_CONFIG" 2>&1) || {
    echo "FAIL: 'warpgate preset video' exited non-zero"
    echo "  output: $output"
    exit 1
}

if ! grep -q 'max_size = "1T"' "$TEST_CONFIG"; then
    echo "FAIL: video preset did not write cache.max_size = \"1T\""
    exit 1
fi

if ! grep -q 'chunk_size = "512M"' "$TEST_CONFIG"; then
    echo "FAIL: video preset did not write chunk_size = \"512M\""
    exit 1
fi

if ! grep -q 'chunk_limit = "2G"' "$TEST_CONFIG"; then
    echo "FAIL: video preset did not write chunk_limit = \"2G\""
    exit 1
fi

if ! grep -q 'multi_thread_streams = 2' "$TEST_CONFIG"; then
    echo "FAIL: video preset did not write multi_thread_streams = 2"
    exit 1
fi

# ── office preset ─────────────────────────────────────────────────────────────

gen_config "nas_host=127.0.0.1"
output=$("$WARPGATE_BIN" preset office -c "$TEST_CONFIG" 2>&1) || {
    echo "FAIL: 'warpgate preset office' exited non-zero"
    echo "  output: $output"
    exit 1
}

if ! grep -q 'max_size = "50G"' "$TEST_CONFIG"; then
    echo "FAIL: office preset did not write cache.max_size = \"50G\""
    exit 1
fi

# office buffer_size must be 128M (not 64M — unified in Step 1 fix)
if ! grep -q 'buffer_size = "128M"' "$TEST_CONFIG"; then
    echo "FAIL: office preset should write buffer_size = \"128M\", got:"
    grep buffer_size "$TEST_CONFIG" || echo "  (not found)"
    exit 1
fi

# office should enable WebDAV
if ! grep -q 'enable_webdav = true' "$TEST_CONFIG"; then
    echo "FAIL: office preset should enable WebDAV"
    exit 1
fi

# office write_back should be 5s (unified; was incorrectly 3s in API before fix)
if ! grep -q 'write_back = "5s"' "$TEST_CONFIG"; then
    echo "FAIL: office preset should write write_back = \"5s\""
    exit 1
fi

# ── unknown preset returns non-zero ──────────────────────────────────────────

gen_config "nas_host=127.0.0.1"
if "$WARPGATE_BIN" preset bad-preset -c "$TEST_CONFIG" 2>&1; then
    echo "FAIL: unknown preset should exit non-zero"
    exit 1
fi

# ── config remains parseable after preset ─────────────────────────────────────

gen_config "nas_host=127.0.0.1"
"$WARPGATE_BIN" preset photographer -c "$TEST_CONFIG" > /dev/null 2>&1

# `warpgate status` parses the config; it will fail the mount check but not
# the config parse — ensure it doesn't error on config parsing
status_out=$("$WARPGATE_BIN" status -c "$TEST_CONFIG" 2>&1) || true
if echo "$status_out" | grep -qi "failed to parse\|toml\|invalid"; then
    echo "FAIL: config written by preset is not parseable"
    echo "  output: $status_out"
    exit 1
fi

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