using System.Text.Json;

namespace Monitor.Backend.Api;

/// <summary><c>return_session</c>：跨域的前端用——不设 Cookie，把会话令牌放在响应里，之后用 <c>Authorization: Bearer</c> 带上。</summary>
public sealed record LoginRequest(string Username, string Password, bool? ReturnSession);

public sealed record LoginResponse(string UserId, string Username, string CsrfToken, DateTimeOffset ExpiresAt, string? SessionToken);

public sealed record MeDto(string Kind, string Scope, string? UserId, string? Username, string? CsrfToken);

public sealed record LocalLimitsDto(double MaxTotalMbps, long MaxTotalPps, IReadOnlyList<string> AllowedTargetCidrs, int MaxConcurrentTests);

public sealed record RejectedDto(string Id, string Reason);

public sealed record HeartbeatDto(int Sessions, long PpsIn, long PpsOut, long DroppedInvalid, long DroppedRateLimited, long QueueBytes, DateTimeOffset At);

public sealed record AgentDto(
    string Id,
    string Name,
    string Status,
    bool Online,
    bool ProbeConnected,
    IReadOnlyList<ConnectedProbeDto> Probes,
    HostDto? Host,
    string PublicHost,
    int ProbeTcpPort,
    IReadOnlyList<int> ProbeUdpPorts,
    IReadOnlyList<string> Labels,
    bool PublicVisible,
    IReadOnlyList<string> Kinds,
    string? AgentVersion,
    LocalLimitsDto? LocalLimits,
    long TaskVersion,
    long AppliedTaskVersion,
    IReadOnlyList<RejectedDto> Rejected,
    HeartbeatDto? Heartbeat,
    int EndpointChanges,
    DateTimeOffset CreatedAt,
    DateTimeOffset? LastSeenAt);

/// <summary>merge-patch：缺省或为 null 的字段不修改。</summary>
public sealed record AgentPatchRequest(string? Name, IReadOnlyList<string>? Labels, string? PublicHost, bool? PublicVisible);

public sealed record JoinTokenDto(string Id, string? Note, IReadOnlyList<string> Labels, bool AutoApprove, int MaxUses, int Uses, DateTimeOffset ExpiresAt, DateTimeOffset? RevokedAt, DateTimeOffset CreatedAt);

public sealed record CreateJoinTokenRequest(string? Note, IReadOnlyList<string>? Labels, bool? AutoApprove, int? MaxUses, int? ExpiresInHours);

/// <summary>令牌明文只在创建的响应里出现一次。</summary>
public sealed record InstallCommandsDto(string Linux, string Macos, string Windows);

public sealed record CreatedJoinTokenDto(JoinTokenDto Token, string Plaintext, InstallCommandsDto InstallCommands);

/// <summary>Agent 眼中连着的一个 Probe（Agent 上报）。</summary>
public sealed record ConnectedProbeDto(string ProbeId, string? Version, string? Remote, DateTimeOffset ConnectedSince);

/// <summary>某个 Probe 现在连着的一个 Agent。</summary>
public sealed record ProbeConnectionDto(string AgentId, string AgentName, bool AgentOnline, string? Version, string? Remote, DateTimeOffset ConnectedSince);

public sealed record ProbeDto(string Id, string Name, DateTimeOffset CreatedAt, DateTimeOffset? RevokedAt, bool Revoked, IReadOnlyList<ProbeConnectionDto> Connections);

public sealed record BootstrapAgentDto(string AgentId, string Host, int TcpPort, string Spki);

public sealed record ProbeLimitsDto(double MaxTestMbps, long MaxTotalPps);

/// <summary><c>probe.json</c>：含私钥，只在生成时返回一次。</summary>
public sealed record ProbeIdentityDto(string ProbeId, string PrivateKey, IReadOnlyList<BootstrapAgentDto> Bootstrap, ProbeLimitsDto Limits);

public sealed record CreateProbeRequest(string? Name);

public sealed record PatchProbeRequest(string? Name);

public sealed record TaskDto(
    string Id,
    string Scope,
    string? AgentId,
    string? BaseTaskId,
    string Kind,
    string? Target,
    IReadOnlyDictionary<string, JsonElement> Params,
    string Schedule,
    bool Enabled,
    DateTimeOffset UpdatedAt);

public sealed record CreateTaskRequest(
    string Scope,
    string Kind,
    string? Target,
    Dictionary<string, JsonElement>? Params,
    string? Schedule,
    bool? Enabled,
    string? AgentId,
    string? BaseTaskId);

public sealed record PatchTaskRequest(Dictionary<string, JsonElement>? Params, string? Schedule, bool? Enabled, string? Target);

public sealed record StartTestRequestDto(string Plan, Dictionary<string, JsonElement>? Params);

public sealed record RawChunkMetaDto(
    string ChunkId,
    string AgentId,
    string Series,
    string Kind,
    string? TaskId,
    string? TestId,
    int? Phase,
    DateTimeOffset Start,
    int DurationMs,
    bool Partial,
    int Bytes);

public sealed record ApiTokenDto(string Id, string Name, string Scope, DateTimeOffset CreatedAt, DateTimeOffset? LastUsedAt, DateTimeOffset? RevokedAt);

public sealed record CreateApiTokenRequest(string Name, string Scope);

public sealed record CreatedApiTokenDto(ApiTokenDto Token, string Plaintext);

public sealed record SettingDto(string Key, string Type, string Value, string Default, string Description);

public sealed record UserDto(string Id, string Username, DateTimeOffset CreatedAt);

public sealed record CreateUserRequest(string Username, string Password);

public sealed record ChangePasswordRequest(string Password);

public sealed record RecomputeDto(string State, IReadOnlyList<string> Metrics, long WindowsDone, long WindowsTotal, DateTimeOffset? From, DateTimeOffset? To, int QueueLength);