const {
  getAllSparepartDb,
  getSparepartByIdDb,
  createSparepartDb,
  updateSparepartDb,
  deleteSparepartDb,
  checkSparepartNameExistsDb,
} = require("../db/sparepart.db");

const { ErrorHandler } = require("../helpers/error");

class SparepartService {
  static async getAllSparepart(param) {
    try {
      const results = await getAllSparepartDb(param);
      results.data.map((item) => {});
      return results;
    } catch (error) {
      throw new ErrorHandler(error.statusCode || 500, error.message);
    }
  }

  static async getSparepartById(id) {
    try {
      const sparepart = await getSparepartByIdDb(id);

      if (!sparepart || sparepart.length === 0) {
        throw new ErrorHandler(404, "Sparepart not found");
      }

      return sparepart[0];
    } catch (error) {
      throw new ErrorHandler(error.statusCode || 500, error.message);
    }
  }

  static async createSparepart(data) {
    try {
      if (!data || typeof data !== "object") data = {};
      if (data.sparepart_name) {
        const exists = await checkSparepartNameExistsDb(data.sparepart_name);
        if (exists)
          throw new ErrorHandler(400, "Sparepart name already exists");
      }
      const created = await createSparepartDb(data);
      if (!created) throw new ErrorHandler(500, "Failed to create Sparepart");
      return created;
    } catch (error) {
      throw new ErrorHandler(error.statusCode || 500, error.message);
    }
  }

  static async updateSparepart(id, data) {
    try {
      const existing = await getSparepartByIdDb(id);
      if (!existing) throw new ErrorHandler(404, "Sparepart not found");
      if (
        data.sparepart_name &&
        data.sparepart_name !== existing.sparepart_name
      ) {
        const exists = await checkSparepartNameExistsDb(
          data.sparepart_name,
          id
        );
        if (exists)
          throw new ErrorHandler(400, "Sparepart name already exists");
      }
      const updated = await updateSparepartDb(id, data);
      if (!updated) throw new ErrorHandler(500, "Failed to update Sparepart");
      return await this.getSparepartById(id);
    } catch (error) {
      throw new ErrorHandler(error.statusCode || 500, error.message);
    }
  }

  static async deleteSparepart(id, userId) {
    try {
      const existing = await getSparepartByIdDb(id);
      if (!existing) throw new ErrorHandler(404, "Sparepart not found");
      const deleted = await deleteSparepartDb(id, userId);
      if (!deleted) throw new ErrorHandler(500, "Failed to delete Sparepart");
      return deleted;
    } catch (error) {
      throw new ErrorHandler(error.statusCode || 500, error.message);
    }
  }
}
module.exports = SparepartService;