// models/Asset.js
const { DataTypes } = require("sequelize");
const sequelize = require("../../config/db.config");
const mdl_Users = require("../users/users.mdl")

const Asset = sequelize.define("Asset", {

  // ─── Identity ─────────────────────────────────────────────────────────────
  asset_id: { type: DataTypes.BIGINT, primaryKey: true, autoIncrement: true, label: "Asset ID", order: 0, hidden: true },
  uuid: { type: DataTypes.UUID, defaultValue: DataTypes.UUIDV4, allowNull: false, unique: true, label: "UUID", order: 0, hidden: true },

  // ─── File info ────────────────────────────────────────────────────────────
  original_name: { type: DataTypes.STRING(255), allowNull: false, label: "Original Name", order: 0, hidden: true },
  display_name: { type: DataTypes.STRING(255), allowNull: false, label: "Name", order: 0, filterable: true },
  file_url: { type: DataTypes.STRING(512), allowNull: false, label: "File URL", order: 0, hidden: true },
  file_size: { type: DataTypes.BIGINT, allowNull: false, label: "File Size", order: 0, hidden: true },
  mime_type: { type: DataTypes.STRING(100), allowNull: false, label: "MIME Type", order: 0, hidden: true },
  extension: { type: DataTypes.STRING(20), label: "File Type", order: 0, filterable: true },
  checksum: { type: DataTypes.STRING(64), label: "Checksum", order: 0, hidden: true },

  // ─── Classification ───────────────────────────────────────────────────────
  file_type: {
    type: DataTypes.ENUM("avatar", "document", "video", "image"),
    allowNull: false,
    defaultValue: "image", label: "Classification", order: 0
  },

  // ─── Image & video dimensions ─────────────────────────────────────────────
  width: { type: DataTypes.INTEGER, label: "", order: 0, hidden: true },
  height: { type: DataTypes.INTEGER, label: "", order: 0, hidden: true },

  // ─── Video-specific ───────────────────────────────────────────────────────
  duration: { type: DataTypes.FLOAT, label: "", order: 0, hidden: true },   // seconds
  resolution: { type: DataTypes.STRING(20), label: "", order: 0, hidden: true },   // "1080p", "720p", "4K"
  frame_rate: { type: DataTypes.FLOAT, label: "", order: 0, hidden: true },   // fps
  bitrate: { type: DataTypes.BIGINT, label: "", order: 0, hidden: true },   // bps
  video_codec: { type: DataTypes.STRING(50), label: "", order: 0, hidden: true },   // "H.264", "H.265"
  audio_codec: { type: DataTypes.STRING(50), label: "", order: 0, hidden: true },   // "AAC", "MP3"
  thumbnail_url:         { type: DataTypes.STRING(512), label: "", order: 0, hidden: true },
  thumbnail_storage_key: { type: DataTypes.STRING(512), label: "", order: 0, hidden: true },

  // ─── Description ──────────────────────────────────────────────────────────
  description: { type: DataTypes.TEXT, label: "Description", hidden: true },

  // ─── Storage ──────────────────────────────────────────────────────────────
  storage_provider: {
    type: DataTypes.ENUM("local", "s3", "gcs", "cloudinary", "chibisafe", "other"),
    defaultValue: "local", label: "Storage Provider", order: 0
  },
  storage_bucket: { type: DataTypes.STRING(255), label: "", order: 0, hidden: true },
  storage_key: { type: DataTypes.STRING(512), label: "", order: 0, hidden: true },

  // ─── Access control ───────────────────────────────────────────────────────
  is_public: {
    type: DataTypes.BOOLEAN,
    defaultValue: false, label: "Access Type", order: 0
  },

  // ── Audit trails ────────────────────────────────────────────────────────────
  createdBy: { type: DataTypes.BIGINT, allowNull: true, label: "Created By", filterable: true },
  updatedBy: { type: DataTypes.BIGINT, allowNull: true, label: "Modified By", filterable: true },
  deletedBy: { type: DataTypes.BIGINT, allowNull: true, label: "Deleted By", filterable: true },
}, {
  tableName: "assets",
  timestamps: true,   // createdAt, updatedAt
  paranoid: true,
  indexes: [
    { fields: ["uuid"] },
    { fields: ["createdBy"] },
    { fields: ["file_type"] },
    { fields: ["deletedAt"] },
  ],
});

Asset.belongsTo(mdl_Users, { as: "creator", foreignKey: "createdBy" });
Asset.belongsTo(mdl_Users, { as: "updater", foreignKey: "updatedBy" });

module.exports = Asset;