import axios from "axios";
import dotenv from "dotenv";
import FormData from "form-data";

dotenv.config();

const READY_API_KEY = process.env.READY_API_KEY;
const READY_API_BASE = "https://api.readyplayer.me/v1";
const READY_MODELS_BASE = "https://models.readyplayer.me";
const READY_AVATARS_BASE = "https://avatars.readyplayer.me";

if (!READY_API_KEY) {
  console.warn("READY_API_KEY not found in environment variables");
}

const getHeaders = (): Record<string, string> => ({
  "X-API-Key": READY_API_KEY || "",
  "Content-Type": "application/json",
});

export interface ReadyPlayerMeUser {
  id: string;
  applicationIds: string[];
  partners: string[];
  createdAt: string;
  updatedAt: string;
}

export interface ReadyPlayerMeAsset {
  id: string;
  name: string;
  type: string;
  gender: string;
  modelUrl: string;
  iconUrl: string;
  organizationId: string;
  locked: boolean;
  applications?: any[];
  hasApps: boolean;
  createdAt: string;
  updatedAt: string;
}

export interface ReadyPlayerMeToken {
  token: string;
}

export interface ReadyPlayerMeAvatarMetadata {
  id: string;
  url?: string;
  [key: string]: any;
}

export class ReadyPlayerMeClient {
  private apiKey: string;
  private applicationId?: string;

  constructor(applicationId?: string) {
    this.apiKey = READY_API_KEY || "";
    this.applicationId = applicationId;
  }

  async createGuestUser(applicationId: string): Promise<ReadyPlayerMeUser | null> {
    try {
      const response = await axios.post<{ data: ReadyPlayerMeUser }>(
        `${READY_API_BASE}/users`,
        {
          data: {
            applicationId,
          },
        },
        {
          headers: getHeaders(),
        }
      );
      return response.data.data;
    } catch (error: any) {
      console.error("Error creating Ready Player Me guest user:", error.response?.data || error.message);
      return null;
    }
  }

  async getAuthToken(userId: string, partner: string): Promise<string | null> {
    try {
      const response = await axios.get<{ data: ReadyPlayerMeToken }>(
        `${READY_API_BASE}/auth/token`,
        {
          params: { userId, partner },
          headers: getHeaders(),
        }
      );
      return response.data.data.token;
    } catch (error: any) {
      console.error("Error getting Ready Player Me token:", error.response?.data || error.message);
      return null;
    }
  }

  async getAvatarGLB(avatarId: string, options?: {
    quality?: "low" | "medium" | "high" | "ultra";
    lod?: number;
    textureAtlas?: number | "none";
    textureFormat?: "webp" | "jpeg" | "png";
    useDracoMeshCompression?: boolean;
  }): Promise<string> {
    const params = new URLSearchParams();
    if (options?.quality) params.append("quality", options.quality);
    if (options?.lod !== undefined) params.append("lod", options.lod.toString());
    if (options?.textureAtlas) params.append("textureAtlas", options.textureAtlas.toString());
    if (options?.textureFormat) params.append("textureFormat", options.textureFormat);
    if (options?.useDracoMeshCompression) params.append("useDracoMeshCompression", "true");

    const queryString = params.toString();
    return `${READY_AVATARS_BASE}/${avatarId}.glb${queryString ? `?${queryString}` : ""}`;
  }

  async getAvatar2DRender(avatarId: string, options?: {
    size?: number;
    quality?: number;
    camera?: "portrait" | "fullbody" | "fit";
    background?: string;
    expression?: string;
    pose?: string;
  }): Promise<string> {
    const params = new URLSearchParams();
    if (options?.size) params.append("size", options.size.toString());
    if (options?.quality) params.append("quality", options.quality.toString());
    if (options?.camera) params.append("camera", options.camera);
    if (options?.background) params.append("background", options.background);
    if (options?.expression) params.append("expression", options.expression);
    if (options?.pose) params.append("pose", options.pose);

    const queryString = params.toString();
    return `${READY_MODELS_BASE}/${avatarId}.png${queryString ? `?${queryString}` : ""}`;
  }

  async getAvatarMetadata(avatarId: string): Promise<ReadyPlayerMeAvatarMetadata | null> {
    try {
      const response = await axios.get<{ data: ReadyPlayerMeAvatarMetadata }>(
        `${READY_MODELS_BASE}/${avatarId}.json`,
        {
          headers: getHeaders(),
        }
      );
      return response.data.data;
    } catch (error: any) {
      console.error("Error getting avatar metadata:", error.response?.data || error.message);
      return null;
    }
  }

  async uploadAssetFile(fileBuffer: Buffer, filename: string, mimetype: string): Promise<string | null> {
    try {
      const formData = new FormData();
      formData.append("file", fileBuffer, {
        filename,
        contentType: mimetype,
      });

      const headers = {
        ...getHeaders(),
        ...formData.getHeaders(),
      };

      console.log(`[Ready Player Me] Uploading file: ${filename} (${fileBuffer.length} bytes, ${mimetype})`);
      const response = await axios.post<{ data: { url: string } }>(
        `${READY_API_BASE}/temporary-media`,
        formData,
        {
          headers,
          maxContentLength: Infinity,
          maxBodyLength: Infinity,
        }
      );
      
      if (response.data?.data?.url) {
        console.log(`[Ready Player Me] File uploaded successfully: ${response.data.data.url}`);
        return response.data.data.url;
      } else {
        console.error("[Ready Player Me] Upload response missing URL:", response.data);
        return null;
      }
    } catch (error: any) {
      console.error("[Ready Player Me] Error uploading asset file:");
      console.error("  Status:", error.response?.status);
      console.error("  Status Text:", error.response?.statusText);
      console.error("  Response Data:", JSON.stringify(error.response?.data, null, 2));
      console.error("  Error Message:", error.message);
      if (error.response?.data) {
        console.error("  Full Error:", JSON.stringify(error.response.data, null, 2));
      }
      return null;
    }
  }

  async createAsset(data: {
    name: string;
    type: string;
    gender: "male" | "female" | "neutral";
    modelUrl: string;
    iconUrl: string;
    organizationId: string;
    locked?: boolean;
    applications?: Array<{
      id: string;
      organizationId: string;
      isVisibleInEditor?: boolean;
    }>;
  }): Promise<ReadyPlayerMeAsset | null> {
    try {
      console.log(`[Ready Player Me] Creating asset: ${data.name} (type: ${data.type}, gender: ${data.gender})`);
      const response = await axios.post<{ data: ReadyPlayerMeAsset }>(
        `${READY_API_BASE}/assets`,
        { data },
        {
          headers: getHeaders(),
        }
      );
      
      if (response.data?.data) {
        console.log(`[Ready Player Me] Asset created successfully: ${response.data.data.id}`);
        return response.data.data;
      } else {
        console.error("[Ready Player Me] Create asset response missing data:", response.data);
        return null;
      }
    } catch (error: any) {
      console.error("[Ready Player Me] Error creating asset:");
      console.error("  Status:", error.response?.status);
      console.error("  Status Text:", error.response?.statusText);
      console.error("  Response Data:", JSON.stringify(error.response?.data, null, 2));
      console.error("  Error Message:", error.message);
      if (error.response?.data) {
        console.error("  Full Error:", JSON.stringify(error.response.data, null, 2));
      }
      return null;
    }
  }

  async listAssets(filters?: {
    type?: string[];
    gender?: string[];
    name?: string;
    organizationId?: string;
    applicationIds?: string[];
    limit?: number;
    page?: number;
  }): Promise<{ data: ReadyPlayerMeAsset[]; pagination: any } | null> {
    try {
      const params = new URLSearchParams();
      if (filters?.type) {
        filters.type.forEach(t => params.append("type", t));
      }
      if (filters?.gender) {
        filters.gender.forEach(g => params.append("gender", g));
      }
      if (filters?.name) params.append("name", filters.name);
      if (filters?.organizationId) params.append("organizationId", filters.organizationId);
      if (filters?.applicationIds) {
        filters.applicationIds.forEach(id => params.append("applicationIds", id));
      }
      if (filters?.limit) params.append("limit", filters.limit.toString());
      if (filters?.page) params.append("page", filters.page.toString());

      const headers: Record<string, string> = { ...getHeaders() };
      if (this.applicationId) {
        headers["X-APP-ID"] = this.applicationId;
      }

      const response = await axios.get<{ data: ReadyPlayerMeAsset[]; pagination: any }>(
        `${READY_API_BASE}/assets?${params.toString()}`,
        { headers }
      );
      return response.data;
    } catch (error: any) {
      console.error("Error listing assets:", error.response?.data || error.message);
      return null;
    }
  }

  async updateAsset(assetId: string, data: {
    name?: string;
    type?: string;
    gender?: "male" | "female" | "neutral";
    modelUrl?: string;
    iconUrl?: string;
    locked?: boolean;
    applications?: Array<{
      id: string;
      organizationId: string;
      isVisibleInEditor?: boolean;
    }>;
  }): Promise<ReadyPlayerMeAsset | null> {
    try {
      const response = await axios.patch<{ data: ReadyPlayerMeAsset }>(
        `${READY_API_BASE}/assets/${assetId}`,
        { data },
        {
          headers: getHeaders(),
        }
      );
      return response.data.data;
    } catch (error: any) {
      console.error("Error updating asset:", error.response?.data || error.message);
      return null;
    }
  }

  async equipAsset(avatarId: string, assetId: string): Promise<boolean> {
    try {
      await axios.put(
        `${READY_API_BASE}/avatars/${avatarId}/equip`,
        {
          data: {
            assetId,
          },
        },
        {
          headers: getHeaders(),
        }
      );
      return true;
    } catch (error: any) {
      console.error("Error equipping asset:", error.response?.data || error.message);
      return false;
    }
  }

  async unequipAsset(avatarId: string, assetId: string): Promise<boolean> {
    try {
      await axios.put(
        `${READY_API_BASE}/avatars/${avatarId}/unequip`,
        {
          data: {
            assetId,
          },
        },
        {
          headers: getHeaders(),
        }
      );
      return true;
    } catch (error: any) {
      console.error("Error unequipping asset:", error.response?.data || error.message);
      return false;
    }
  }

  async addAssetToApplication(assetId: string, applicationId: string, isVisibleInEditor: boolean = true): Promise<boolean> {
    try {
      await axios.post(
        `${READY_API_BASE}/assets/${assetId}/application`,
        {
          data: {
            applicationId,
            isVisibleInEditor,
          },
        },
        {
          headers: getHeaders(),
        }
      );
      return true;
    } catch (error: any) {
      console.error("Error adding asset to application:", error.response?.data || error.message);
      return false;
    }
  }

  async removeAssetFromApplication(assetId: string, applicationId: string): Promise<boolean> {
    try {
      await axios.delete(
        `${READY_API_BASE}/assets/${assetId}/application`,
        {
          data: {
            applicationId,
          },
          headers: getHeaders(),
        }
      );
      return true;
    } catch (error: any) {
      console.error("Error removing asset from application:", error.response?.data || error.message);
      return false;
    }
  }

  async unlockAssetForUser(assetId: string, userId: string): Promise<boolean> {
    try {
      await axios.put(
        `${READY_API_BASE}/assets/${assetId}/unlock`,
        {
          data: {
            userId,
          },
        },
        {
          headers: getHeaders(),
        }
      );
      return true;
    } catch (error: any) {
      console.error("Error unlocking asset:", error.response?.data || error.message);
      return false;
    }
  }

  async lockAssetForUser(assetId: string, userId: string): Promise<boolean> {
    try {
      await axios.put(
        `${READY_API_BASE}/assets/${assetId}/lock`,
        {
          data: {
            userId,
          },
        },
        {
          headers: getHeaders(),
        }
      );
      return true;
    } catch (error: any) {
      console.error("Error locking asset:", error.response?.data || error.message);
      return false;
    }
  }
}

export const readyPlayerMeClient = new ReadyPlayerMeClient();