import type { InferAttributes, InferCreationAttributes, Sequelize } from "sequelize";
import { DataTypes, Model, QueryTypes } from "sequelize";
export class ResourceModel extends Model<
  InferAttributes<ResourceModel>,
  InferCreationAttributes<ResourceModel>
> {
  declare id: string;
  declare companyId: string;
  declare templateId: string;
  declare specification: unknown;
  declare values: unknown;
}
export class ResourceRevisionModel extends Model<
  InferAttributes<ResourceRevisionModel>,
  InferCreationAttributes<ResourceRevisionModel>
> {
  declare id: string;
  declare resourceId: string;
  declare actorId: string;
  declare recordedAt: string;
  declare values: unknown;
  declare position: number;
}
const id = { type: DataTypes.UUID, primaryKey: true };
const fk = (model: string) => ({
  type: DataTypes.UUID,
  allowNull: false,
  references: { model, key: "id" },
  onDelete: "RESTRICT",
});
export async function migrateInventory(database: Sequelize) {
  const query = database.getQueryInterface();
  const tables = await database.query<{ name: string }>(
    "SELECT TABLE_NAME AS name FROM information_schema.TABLES WHERE TABLE_SCHEMA=DATABASE()",
    { type: QueryTypes.SELECT }
  );
  const resource = {
    id,
    companyId: fk("companies"),
    templateId: fk("resource_definitions"),
    specification: { type: DataTypes.JSON, allowNull: false },
    values: { type: DataTypes.JSON, allowNull: false },
  };
  const revision = {
    id,
    resourceId: fk("resources"),
    actorId: fk("users"),
    recordedAt: { type: DataTypes.STRING(30), allowNull: false },
    values: { type: DataTypes.JSON, allowNull: false },
    position: { type: DataTypes.INTEGER, allowNull: false },
  };
  if (!tables.some((table) => table.name === "resources")) {
    await query.createTable("resources", resource);
  }
  if (!tables.some((table) => table.name === "resource_revisions")) {
    await query.createTable("resource_revisions", revision);
  }
  const indexes = await database.query<{ name: string }>(
    "SELECT DISTINCT INDEX_NAME AS name FROM information_schema.STATISTICS WHERE TABLE_SCHEMA=DATABASE() AND TABLE_NAME='resource_revisions'",
    { type: QueryTypes.SELECT }
  );
  if (!indexes.some((index) => index.name === "resource_revision_position_unique")) {
    await query.addIndex("resource_revisions", ["resourceId", "position"], {
      unique: true,
      name: "resource_revision_position_unique",
    });
  }
  ResourceModel.init(resource, { sequelize: database, tableName: "resources", timestamps: false });
  ResourceRevisionModel.init(revision, {
    sequelize: database,
    tableName: "resource_revisions",
    timestamps: false,
  });
}