using System.Text.Json;
using System.Text.Json.Serialization;

namespace Launcher.Next.Application;

public sealed record LegacyProbeOverride(
    int SchemaVersion,
    string Mode,
    string SettingsXml,
    string DownloadListXml,
    string CompatibilityOverlay,
    string SelectedPattern,
    string EvidenceOutputRoot);

public static class LegacyProbeOverrideParser
{
    private static readonly JsonSerializerOptions Options = new()
    {
        PropertyNameCaseInsensitive = true,
        UnmappedMemberHandling = JsonUnmappedMemberHandling.Disallow
    };

    public static LegacyProbeOverride Parse(string json)
    {
        try
        {
            var value = JsonSerializer.Deserialize<LegacyProbeOverride>(json, Options)
                ?? throw new InvalidOperationException("LEGACY_PROBE_OVERRIDE_MISSING");
            if (value.SchemaVersion != 1) throw new InvalidOperationException("LEGACY_PROBE_OVERRIDE_SCHEMA_UNSUPPORTED");
            if (!string.Equals(value.Mode, "LegacyConfigurationProbe", StringComparison.Ordinal)) throw new InvalidOperationException("LEGACY_PROBE_MODE_REQUIRED");
            if (new[] { value.SettingsXml, value.DownloadListXml, value.CompatibilityOverlay, value.SelectedPattern, value.EvidenceOutputRoot }.Any(string.IsNullOrWhiteSpace))
                throw new InvalidOperationException("LEGACY_PROBE_INPUT_MISSING");
            if (new[] { value.SettingsXml, value.DownloadListXml, value.CompatibilityOverlay, value.EvidenceOutputRoot }.Any(x => Uri.TryCreate(x, UriKind.Absolute, out var uri) && !uri.IsFile || x.Contains('*') || x.Contains('?')))
                throw new InvalidOperationException("LEGACY_PROBE_INPUT_PATH_INVALID");
            return value;
        }
        catch (JsonException) { throw new InvalidOperationException("LEGACY_PROBE_OVERRIDE_UNKNOWN_FIELD"); }
    }
}