#!/bin/bash
set -uo pipefail

HERE="$(cd "$(dirname "$0")" && pwd)"
RESTORE="$HERE/../restore.sh"
FAILURES=0

assert_eq() {
    local expected="$1" actual="$2" msg="$3"
    if [[ "$expected" != "$actual" ]]; then
        echo "FAIL: $msg (expected '$expected', got '$actual')"
        FAILURES=$((FAILURES + 1))
    else
        echo "PASS: $msg"
    fi
}

assert_contains() {
    local haystack="$1" needle="$2" msg="$3"
    if [[ "$haystack" != *"$needle"* ]]; then
        echo "FAIL: $msg (expected to contain '$needle', got '$haystack')"
        FAILURES=$((FAILURES + 1))
    else
        echo "PASS: $msg"
    fi
}

test_help_exits_zero() {
    local out rc
    out="$(bash "$RESTORE" -h)"
    rc=$?
    assert_eq "0" "$rc" "help exits 0"
    assert_contains "$out" "Usage:" "help prints usage"
}

test_no_args_exits_one() {
    local rc
    bash "$RESTORE" >/dev/null 2>&1
    rc=$?
    assert_eq "1" "$rc" "no args exits 1"
}

test_unknown_command_exits_one() {
    local rc
    bash "$RESTORE" bogus >/dev/null 2>&1
    rc=$?
    assert_eq "1" "$rc" "unknown command exits 1"
}

source "$HERE/lib/setup_mocks.sh"

test_list_archives() {
    local mockdir out
    mockdir="$(mktemp -d)"
    setup_mock_bin "$mockdir"
    out="$(PATH="$mockdir:$PATH" bash "$RESTORE" --list-archives)"
    assert_contains "$out" "host-2026-01-01T00-00-00" "list-archives shows first archive"
    assert_contains "$out" "host-2026-06-01T00-00-00" "list-archives shows latest archive"
    rm -rf "$mockdir"
}

test_file_restore_extracts_to_dest() {
    local mockdir dest out final
    mockdir="$(mktemp -d)"
    dest="$(mktemp -d)"
    setup_mock_bin "$mockdir"
    out="$(PATH="$mockdir:$PATH" bash "$RESTORE" file photos/img.jpg --dest "$dest")"
    final="$dest/home/srv/files/content/photos/img.jpg"
    assert_contains "$out" "Restored file available at: $final" "file mode reports final path"
    if [[ -f "$final" ]]; then
        echo "PASS: extracted file exists on disk"
    else
        echo "FAIL: extracted file missing at $final"
        FAILURES=$((FAILURES + 1))
    fi
    rm -rf "$mockdir" "$dest"
}

test_file_restore_dry_run_makes_no_borg_call() {
    local mockdir dest
    mockdir="$(mktemp -d)"
    dest="$(mktemp -d)"
    setup_mock_bin "$mockdir"
    PATH="$mockdir:$PATH" bash "$RESTORE" file photos/img.jpg --dest "$dest" --dry-run >/dev/null
    if [[ -s "$mockdir/mock.log" ]] && grep -q "^borg extract" "$mockdir/mock.log"; then
        echo "FAIL: dry-run invoked borg extract"
        FAILURES=$((FAILURES + 1))
    else
        echo "PASS: dry-run made no borg extract call"
    fi
    rm -rf "$mockdir" "$dest"
}

test_help_exits_zero
test_no_args_exits_one
test_unknown_command_exits_one
test_list_archives
test_file_restore_extracts_to_dest
test_file_restore_dry_run_makes_no_borg_call

echo "-----"
if [[ "$FAILURES" -gt 0 ]]; then
    echo "$FAILURES failure(s)"
    exit 1
fi
echo "All tests passed"