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

namespace VFXReviewWorker;

// Wire types for the /api/ext pipeline endpoints (RenderPipeline2 §6).

public sealed class RegisterResponse
{
    public MachineInfo Machine { get; set; } = new();
    public ServerConfig Config { get; set; } = new();
}

public sealed class MachineInfo
{
    public string Id { get; set; } = "";
    public string Name { get; set; } = "";
    public bool Enabled { get; set; }
}

/// <summary>Server-supplied tuning (E6) — fleet-tunable without touching installs.</summary>
public sealed class ServerConfig
{
    public int PollSeconds { get; set; } = 10;
    public int HeartbeatSeconds { get; set; } = 30;
    public int LeaseSeconds { get; set; } = 300;
    public int MaxAttempts { get; set; } = 3;
    public int StallTimeoutSeconds { get; set; } = 600;

    /// <summary>
    /// Validation stage (§8). The server decides whether it runs, so turning it
    /// off is a config change there rather than a redeploy of every worker.
    /// </summary>
    public bool ValidationEnabled { get; set; } = true;
    public int ValidationSampleEvery { get; set; } = 25;
    /// <summary>Head handles the plates carry; only used for the API timecode fallback (§8.1a).</summary>
    public int ValidationHandleFrames { get; set; } = 8;
}

public sealed class ClaimResponse
{
    public ClaimedJob Job { get; set; } = new();
}

public sealed class ClaimedJob
{
    public string Id { get; set; } = "";
    public string Type { get; set; } = "AE_RENDER";
    public int Attempt { get; set; }
    public int MaxAttempts { get; set; }
    public string? ExportId { get; set; }
    public string? DeliveryId { get; set; }
    /// <summary>Set for jobs with no shot behind them; shown instead of a shot code.</summary>
    public string? Label { get; set; }
    public DateTimeOffset? LeaseExpiresAt { get; set; }

    /// <summary>Manifest shape depends on the job type — deserialize per stage.</summary>
    public JsonElement Manifest { get; set; }

    public RenderManifest AsRenderManifest() =>
        Manifest.Deserialize<RenderManifest>(WorkerOptions.JsonOpts)
        ?? throw new InvalidOperationException("Job manifest is not a render manifest");

    public PreviewManifest AsPreviewManifest() =>
        Manifest.Deserialize<PreviewManifest>(WorkerOptions.JsonOpts)
        ?? throw new InvalidOperationException("Job manifest is not a preview manifest");

    public DeliveryManifest AsDeliveryManifest() =>
        Manifest.Deserialize<DeliveryManifest>(WorkerOptions.JsonOpts)
        ?? throw new InvalidOperationException("Job manifest is not a delivery manifest");

    public BlenderManifest AsBlenderManifest() =>
        Manifest.Deserialize<BlenderManifest>(WorkerOptions.JsonOpts)
        ?? throw new InvalidOperationException("Job manifest is not a Blender manifest");
}

/// <summary>
/// A standalone Blender render. Overrides are all optional: an unset value
/// leaves whatever the .blend was saved with, which is the point — the file is
/// expected to be ready to render.
/// </summary>
public sealed class BlenderManifest
{
    public string Stage { get; set; } = "BLENDER";
    public string BlendFile { get; set; } = "";
    public string? Scene { get; set; }
    public int FrameStart { get; set; }
    public int FrameEnd { get; set; }
    public string? OutputPath { get; set; }
    public string? Engine { get; set; }
    public string? Device { get; set; }
    public int? Samples { get; set; }
    public int? ResolutionPercent { get; set; }
    public string? BlenderVersion { get; set; }

    public int TotalFrames => FrameEnd - FrameStart + 1;
}

/// <summary>DELIVERY_BUILD manifest (server-built, RenderPipeline2 §11).</summary>
public sealed class DeliveryManifest
{
    public string Stage { get; set; } = "DELIVERY";
    /// <summary>
    /// "EXR_DELIVERY" builds the per-shot folders of EXRs + MOVs; "MOV_REVIEW"
    /// builds a flat folder of preview MOVs for a formal review (§11.6). One
    /// job type and one claim path either way — only what lands on disk differs.
    /// </summary>
    public string Kind { get; set; } = "EXR_DELIVERY";
    public string PackageId { get; set; } = "";
    public string PackageName { get; set; } = "";
    public int PackageNumber { get; set; }
    public string Episode { get; set; } = "";
    public string PackageDir { get; set; } = "";
    public string ReportFile { get; set; } = "";
    public bool IncludeMovs { get; set; } = true;
    public string CopyMode { get; set; } = "auto";
    /// <summary>"auto" verifies copies by hash and links by identity; "always-hash" reads everything back.</summary>
    public string VerifyMode { get; set; } = "auto";
    public string ChecksumAlgo { get; set; } = "xxh64";
    public List<string> ReportFormats { get; set; } = new();
    public List<DeliveryManifestItem> Items { get; set; } = new();
}

public sealed class DeliveryManifestItem
{
    public string ItemId { get; set; } = "";
    public string ExportId { get; set; } = "";
    public string ShotCode { get; set; } = "";
    public string VersionString { get; set; } = "";
    public string SourceDir { get; set; } = "";
    public string OutputPattern { get; set; } = "";
    public int FrameStart { get; set; }
    public int FrameEnd { get; set; }
    public int? FileCount { get; set; }
    public string? Checksum { get; set; }
    public string? DeliveryMovPath { get; set; }
    public string ShotDir { get; set; } = "";
    /// <summary>
    /// Server-computed: "{clientCode}_{versionString}" when the shot has a
    /// client naming code, else the studio's own "{shotCode}_cmp_TT_{versionString}".
    /// The delivered EXR sequence and MOV are named from this, not the
    /// internal render filename they're copied from.
    /// </summary>
    public string DeliveredBaseName { get; set; } = "";
    /// <summary>When this export's validation ran — lets a linked package detect a source changed since QC.</summary>
    public DateTimeOffset? ValidatedAt { get; set; }

    /// <summary>
    /// True on a MOV_REVIEW item: there is no EXR sequence, so SourceDir,
    /// OutputPattern, FileCount and Checksum are empty and DeliveryMovPath is
    /// the whole deliverable.
    /// </summary>
    public bool IsMovOnly => string.IsNullOrWhiteSpace(SourceDir);
}

/// <summary>PREVIEW_ONLY manifest (server-built, RenderPipeline2 §9).</summary>
public sealed class PreviewManifest
{
    public string Stage { get; set; } = "PREVIEW";
    public string ExportId { get; set; } = "";
    public string ShotCode { get; set; } = "";
    public string VersionString { get; set; } = "";
    public string OutputDir { get; set; } = "";
    public string OutputPattern { get; set; } = "";
    public int FrameStart { get; set; }
    public int FrameEnd { get; set; }
    public double Fps { get; set; } = 24;
    public string TemplateAep { get; set; } = "";
    public string TemplateComp { get; set; } = "";
    public string? OverlayComp { get; set; }
    public string? LutComp { get; set; }
    public string MovTemplate { get; set; } = "";
    public string Mp4Template { get; set; } = "";
    public string MovOutput { get; set; } = "";
    public string Mp4Output { get; set; } = "";
    public string? SlateScopeProp { get; set; }
    public string? SlateSubmissionProp { get; set; }
    public SlateInfo Slate { get; set; } = new();

    public int TotalFrames => FrameEnd - FrameStart + 1;
}

public sealed class SlateInfo
{
    public string VersionName { get; set; } = "";
    public string Date { get; set; } = "";
    public string? Description { get; set; }
    public string? Notes { get; set; }
    public string ShotCode { get; set; } = "";
    /// <summary>Production name, burned into the slate and the overlay.</summary>
    public string? Show { get; set; }
    public string? Episode { get; set; }
    public string? Scene { get; set; }
    public string? VfxScope { get; set; }
    public string? SubmissionNote { get; set; }
}

/// <summary>Result JSON written by vfxr_build_preview.jsx.</summary>
public sealed class PreviewBuildResult
{
    public bool Ok { get; set; }
    public string? Error { get; set; }
    public List<string> Warnings { get; set; } = new();
    public string? TempAep { get; set; }
    public string? PreviewComp { get; set; }
    public int? FrameCount { get; set; }
    public int? Width { get; set; }
    public int? Height { get; set; }
    /// <summary>
    /// Seconds of slate ahead of picture in the preview comp (the SHOT layer's
    /// in-point). Null on builds predating this field, or when the template has
    /// no SHOT layer — the thumbnail then falls back to scanning from frame 0.
    /// </summary>
    public double? PictureStartSeconds { get; set; }
}

/// <summary>The Render Manifest (§6.2) — the fields the render and validation stages need; the rest is preserved raw.</summary>
public sealed class RenderManifest
{
    public string ShotCode { get; set; } = "";
    public string AepPath { get; set; } = "";
    public string CompName { get; set; } = "";
    public string OutputDir { get; set; } = "";
    public string OutputPattern { get; set; } = "";
    public string? OutputModuleTemplate { get; set; }
    public string? RenderSettingsTemplate { get; set; }
    /// <summary>Comp timeline range handed to aerender (-s/-e).</summary>
    public int FrameStart { get; set; }
    public int FrameEnd { get; set; }
    /// <summary>
    /// The number the *first output file* carries — the output module's
    /// starting number (house convention 1001), which is deliberately not the
    /// comp's frame range: a comp anchored to the plate's timecode starts in
    /// the millions. Null on manifests predating this field.
    /// </summary>
    public int? OutputFrameStart { get; set; }
    public double Fps { get; set; } = 24;
    public int Width { get; set; }
    public int Height { get; set; }
    public ManifestExpected? Expected { get; set; }
    public ManifestSource? Source { get; set; }

    [JsonExtensionData]
    public Dictionary<string, JsonElement>? Extra { get; set; }

    public int TotalFrames => FrameEnd - FrameStart + 1;
}

/// <summary>Per-project expectations the validation engine checks against (§8.1).</summary>
public sealed class ManifestExpected
{
    public string? Colorspace { get; set; }
    public string? BitDepth { get; set; }
    public string? ExrCompression { get; set; }
    public bool? Alpha { get; set; }
    /// <summary>The API's editorial in-point — the rank 3 timecode fallback only (§8.1a).</summary>
    public string? TimecodeStart { get; set; }
}

/// <summary>Plate provenance resolved by the panel from the comp's footage layers (§6.2).</summary>
public sealed class ManifestSource
{
    public PlateRef? TimingPlate { get; set; }
    public List<PlateRef> Plates { get; set; } = new();
    public string? StartSource { get; set; }
    public int? StartFrames { get; set; }
    public int? HandleFrames { get; set; }
}

public sealed class PlateRef
{
    public string? Element { get; set; }
    public string Path { get; set; } = "";
    public int? FrameStart { get; set; }
    public int? FrameEnd { get; set; }
}

public sealed class ProgressResponse
{
    public bool Ok { get; set; }
    public bool CancelRequested { get; set; }
    public DateTimeOffset? LeaseExpiresAt { get; set; }
}

public sealed class HeartbeatResponse
{
    public bool Ok { get; set; }
    public List<WorkerCommand> Commands { get; set; } = new();
}

public sealed class WorkerCommand
{
    public string Type { get; set; } = "";
    public string? JobId { get; set; }
}

public sealed class PresignResponse
{
    public string PresignedUrl { get; set; } = "";
    public string Key { get; set; } = "";
    public string Url { get; set; } = "";
}

public sealed class ExportDetailResponse
{
    public ExportDetail Export { get; set; } = new();
}

public sealed class ExportDetail
{
    public string Id { get; set; } = "";
    public string Status { get; set; } = "";
    public List<RenderJobDetail> RenderJobs { get; set; } = new();
}

public sealed class RenderJobDetail
{
    public string Id { get; set; } = "";
    public string Status { get; set; } = "";
}

/// <summary>Durable lifecycle report persisted to the spool directory (§7.6).</summary>
public sealed class SpooledReport
{
    public string Kind { get; set; } = ""; // "fail" | "complete-render"
    public string JobId { get; set; } = "";
    public Dictionary<string, object?> Payload { get; set; } = new();
    public DateTimeOffset CreatedAt { get; set; } = DateTimeOffset.UtcNow;
}

/// <summary>current-job.json — crash recovery state (§7.5).</summary>
public sealed class CurrentJobState
{
    public string JobId { get; set; } = "";
    public string? ExportId { get; set; } = "";
    public string MachineId { get; set; } = "";
    public string OutputDirLocal { get; set; } = "";
    public DateTimeOffset ClaimedAt { get; set; }
}