const pool = require("../config");

// Get error codes by brand ID
const getErrorCodesByBrandIdDb = async (brandId, searchParams = {}) => {
  let queryParams = [brandId];

  // Pagination
  if (searchParams.limit) {
    const page = Number(searchParams.page ?? 1) - 1;
    queryParams = [brandId, Number(searchParams.limit ?? 10), page];
  }

  // Search across multiple columns
  const { whereOrConditions, whereParamOr } = pool.buildStringOrIlike(
    ["a.error_code", "a.error_code_name", "a.error_code_description"],
    searchParams.criteria,
    queryParams
  );

  queryParams = whereParamOr ? whereParamOr : queryParams;

  // Filter conditions
  const { whereConditions, whereParamAnd } = pool.buildFilterQuery(
    [
      { column: "a.is_active", param: searchParams.status, type: "string" },
    ],
    queryParams
  );

  queryParams = whereParamAnd ? whereParamAnd : queryParams;

  const queryText = `
    SELECT
      COUNT(*) OVER() AS total_data,
      a.*
    FROM brand_code a
    WHERE a.brand_id = $1 AND a.deleted_at IS NULL
      ${whereConditions.length > 0 ? `AND ${whereConditions.join(' AND ')}` : ''}
      ${whereOrConditions ? whereOrConditions : ''}
    ORDER BY a.error_code_id DESC
    ${searchParams.limit ? `OFFSET $3 * $2 ROWS FETCH NEXT $2 ROWS ONLY` : ''}
  `;

  const result = await pool.query(queryText, queryParams);

  // Return paginated format if limit is provided
  if (searchParams.limit) {
    const total = result?.recordset.length > 0 ? parseInt(result.recordset[0].total_data, 10) : 0;
    return { data: result.recordset, total };
  }

  // Return simple array for backward compatibility
  return result.recordset;
};

const createErrorCodeDb = async (brandId, data) => {
  const store = {
    brand_id: brandId,
    error_code: data.error_code,
    error_code_name: data.error_code_name,
    error_code_description: data.error_code_description,
    error_code_color: data.error_code_color,
    path_icon: data.path_icon,
    is_active: data.is_active,
    created_by: data.created_by
  };

  const { query: queryText, values } = pool.buildDynamicInsert("brand_code", store);
  const result = await pool.query(queryText, values);
  const insertedId = result.recordset[0]?.inserted_id;
  return insertedId;
};

const updateErrorCodeDb = async (brandId, errorCode, data) => {
  const store = { ...data };
  const whereData = {
    brand_id: brandId,
    error_code: errorCode
  };

  const { query: queryText, values } = pool.buildDynamicUpdate("brand_code", store, whereData);
  await pool.query(`${queryText} AND deleted_at IS NULL`, values);
  return true;
};

const deleteErrorCodeDb = async (brandId, errorCode, deletedBy) => {
  const queryText = `
    UPDATE brand_code
    SET deleted_at = CURRENT_TIMESTAMP, deleted_by = $1
    WHERE brand_id = $2 AND error_code = $3 AND deleted_at IS NULL
  `;
  await pool.query(queryText, [deletedBy, brandId, errorCode]);
  return true;
};

const getErrorCodeByIdDb = async (error_code_id) => {
  const queryText = `
    SELECT
      a.*
    FROM brand_code a
    WHERE a.error_code_id = $1 AND a.deleted_at IS NULL
  `;
  const result = await pool.query(queryText, [error_code_id]);
  return result.recordset[0];
};

const getErrorCodeByBrandAndCodeDb = async (brandId, errorCode) => {
  const queryText = `
    SELECT
      a.*
    FROM brand_code a
    WHERE a.brand_id = $1 AND a.error_code = $2 AND a.deleted_at IS NULL
  `;
  const result = await pool.query(queryText, [brandId, errorCode]);
  return result.recordset[0];
};

// Get all error codes with pagination and search
const getAllErrorCodesDb = async (searchParams = {}) => {
  let queryParams = [];

  // Pagination
  if (searchParams.limit) {
    const page = Number(searchParams.page ?? 1) - 1;
    queryParams = [Number(searchParams.limit ?? 10), page];
  }

  // Search across multiple columns
  const { whereOrConditions, whereParamOr } = pool.buildStringOrIlike(
    ["a.error_code", "a.error_code_name", "a.error_code_description"],
    searchParams.criteria,
    queryParams
  );

  queryParams = whereParamOr ? whereParamOr : queryParams;

  // Filter conditions
  const { whereConditions, whereParamAnd } = pool.buildFilterQuery(
    [
      { column: "a.is_active", param: searchParams.status, type: "string" },
      { column: "a.brand_id", param: searchParams.brand_id, type: "number" },
    ],
    queryParams
  );

  queryParams = whereParamAnd ? whereParamAnd : queryParams;

  const queryText = `
    SELECT
      COUNT(*) OVER() AS total_data,
      a.*
    FROM brand_code a
    WHERE a.deleted_at IS NULL
      ${whereConditions.length > 0 ? `AND ${whereConditions.join(' AND ')}` : ''}
      ${whereOrConditions ? whereOrConditions : ''}
    ORDER BY a.error_code_id DESC
    ${searchParams.limit ? `OFFSET $2 * $1 ROWS FETCH NEXT $1 ROWS ONLY` : ''}
  `;

  const result = await pool.query(queryText, queryParams);
  const total = result?.recordset.length > 0 ? parseInt(result.recordset[0].total_data, 10) : 0;

  return { data: result.recordset, total };
};

module.exports = {
  getErrorCodesByBrandIdDb,
  getErrorCodeByIdDb,
  getErrorCodeByBrandAndCodeDb,
  createErrorCodeDb,
  updateErrorCodeDb,
  deleteErrorCodeDb,
  getAllErrorCodesDb,
};