import type { SceneResultsPayload } from "./sceneData";

export const SCENE_CHANNEL = "tjwater:zjb-scene";
export const SCENE_PROTOCOL_VERSION = 2;

export type SceneMode =
  | "network"
  | "hydraulic"
  | "map"
  | "detail"
  | "pump"
  | "meters";

export type SceneDisplayMode = "global" | "coordinated";
export type SceneMetricMode = "uniform" | "velocity" | "pressure" | "direction";
export type SceneDirectionMode = "none" | "topology" | "results";
export type SceneLightingPreset = "day" | "studio" | "evening";
export type SceneQuality = "standard" | "high";

export type SceneNetworkStyle = {
  scale: number;
  mode: SceneMetricMode;
  color: string;
  missingColor: string;
  lowColor: string;
  highColor: string;
  opacity: number;
  roughness: number;
  metalness: number;
  nodes: boolean;
  direction: SceneDirectionMode;
  arrowColor: string;
  autoRange: boolean;
  min: number;
  max: number;
};

export type SceneAppearance = {
  preset: SceneLightingPreset;
  exposure: number;
  shadows: boolean;
  effects: boolean;
  quality: SceneQuality;
};

export type SceneCameraView = {
  id: string;
  label: string;
  mode: SceneMode;
  note?: string;
  saved: boolean;
};

export type SceneCameraState = {
  active: string | null;
  note: string;
  views: SceneCameraView[];
};

export type SceneStyleSummary = {
  mode?: SceneMetricMode;
  min?: number;
  max?: number;
  dataLinks?: number;
  totalLinks?: number;
  arrows?: number;
  hasResults?: boolean;
  resultTime?: string | null;
  scale?: number;
};

export type SceneRuntimeState = {
  mode: SceneMode;
  status: string;
  contextVisible: boolean;
  roofVisible: boolean;
  displayMode: SceneDisplayMode;
  style: SceneNetworkStyle;
  styleSummary: SceneStyleSummary;
  appearance: SceneAppearance;
  camera: SceneCameraState;
};

export type SceneAssetField = {
  label: string;
  value: string;
};

export type SceneAssetSection = {
  title: string;
  fields: SceneAssetField[];
};

export type SceneAssetNeighbor = {
  id: string;
  label: string;
};

export type SceneAssetSelection = {
  assetId: string;
  elementId: string;
  kind: string;
  title: string;
  sections: SceneAssetSection[];
  neighbors: SceneAssetNeighbor[];
};

export type SceneCommand =
  | { name: "set-mode"; mode: SceneMode }
  | { name: "visit-camera"; viewId: string }
  | { name: "save-camera"; label: string }
  | { name: "remove-camera"; viewId: string }
  | { name: "set-style"; patch: Partial<SceneNetworkStyle> }
  | { name: "reset-style" }
  | { name: "set-display-mode"; mode: SceneDisplayMode }
  | { name: "set-appearance"; patch: Partial<SceneAppearance> }
  | { name: "toggle-context" }
  | { name: "toggle-roof" }
  | { name: "fit-view" }
  | { name: "select-asset"; assetId: string }
  | { name: "locate-selection" }
  | { name: "clear-selection" };

type HostMessageBase = {
  channel: typeof SCENE_CHANNEL;
  version: typeof SCENE_PROTOCOL_VERSION;
  projectCode: string;
  modelId: string;
};

export type SceneHostMessage = HostMessageBase &
  (
    | { type: "results"; payload: SceneResultsPayload }
    | { type: "clear-results" }
    | { type: "command"; command: SceneCommand }
  );

export type SceneRuntimeMessage = HostMessageBase &
  (
    | {
        type: "ready";
        nodeIds: string[];
        linkIds: string[];
        state: SceneRuntimeState;
      }
    | { type: "scene-state"; state: SceneRuntimeState }
    | { type: "selection-changed"; selection: SceneAssetSelection | null }
    | { type: "results-applied"; summary: SceneStyleSummary }
    | { type: "results-cleared" }
    | { type: "error"; message: string }
  );

export const isSceneRuntimeMessage = (
  input: unknown,
): input is SceneRuntimeMessage => {
  if (!input || typeof input !== "object") return false;
  const message = input as Partial<SceneRuntimeMessage>;
  return (
    message.channel === SCENE_CHANNEL &&
    message.version === SCENE_PROTOCOL_VERSION &&
    typeof message.projectCode === "string" &&
    typeof message.modelId === "string" &&
    typeof message.type === "string"
  );
};