const { query, buildFilterQuery, buildDynamicUpdate } = require("../config");

// Get all tags
const getAllTagsDb = async (searchParams = {}) => {
  const { whereConditions, queryParams } = buildFilterQuery([
    { column: "mt.tag_name", param: searchParams.name, type: "string" },
    { column: "mt.tag_code", param: searchParams.code, type: "string" },
    { column: "md.device_name", param: searchParams.deviceName, type: "string" },
    { column: "pss.sub_section_name", param: searchParams.subSectionName, type: "string" },
  ]);

  const whereClause = whereConditions.length
    ? `AND ${whereConditions.join(" AND ")}`
    : "";

  const queryText = `
    SELECT 
      mt.tag_id, mt.device_id, mt.tag_code, mt.tag_name, mt.tag_number,
      mt.data_type, mt.unit, mt.is_active, mt.sub_section_id,
      mt.created_at, mt.updated_at, mt.deleted_at,
      md.device_name,
      pss.sub_section_code, pss.sub_section_name
    FROM m_tags mt
    LEFT JOIN m_device md ON mt.device_id = md.device_id
    LEFT JOIN plant_sub_section pss ON mt.sub_section_id = pss.sub_section_id
    WHERE mt.deleted_at IS NULL ${whereClause}
    ORDER BY mt.tag_id ASC
  `;
  const result = await query(queryText, queryParams);
  return result.recordset;
};

// Get tag by ID
const getTagByIdDb = async (id) => {
  const queryText = `
    SELECT 
      mt.tag_id, mt.device_id, mt.tag_code, mt.tag_name, mt.tag_number,
      mt.data_type, mt.unit, mt.is_active, mt.sub_section_id,
      mt.created_at, mt.updated_at, mt.deleted_at,
      md.device_name,
      pss.sub_section_code, pss.sub_section_name
    FROM m_tags mt
    LEFT JOIN m_device md ON mt.device_id = md.device_id
    LEFT JOIN plant_sub_section pss ON mt.sub_section_id = pss.sub_section_id
    WHERE mt.tag_id = $1 AND mt.deleted_at IS NULL
  `;
  const result = await query(queryText, [id]);
  return result.recordset[0];
};

// Create tag
const createTagDb = async (data) => {
  const queryText = `
    INSERT INTO m_tags
      (device_id, tag_code, tag_name, tag_number, data_type, unit, is_active, sub_section_id, created_by)
    VALUES
      ($1,$2,$3,$4,$5,$6,$7,$8,$9);
    SELECT SCOPE_IDENTITY() as tag_id;
  `;
  
  const values = [
    data.device_id,
    data.tag_code,
    data.tag_name,
    data.tag_number || null,
    data.data_type || 'A2',
    data.unit || null,
    data.is_active || 1, //default aktif
    data.sub_section_id || null,
    data.created_by || null, 
  ];

  const result = await query(queryText, values);
  return result.recordset[0]?.tag_id || null;
};

const updateTagDb = async (tagId, data) => {
  const { query: queryText, values } = buildDynamicUpdate("m_tags", data, { tag_id: tagId, updated_at: 'GETDATE()' });
  const finalQuery = queryText.replace("WHERE", "WHERE deleted_at IS NULL AND");
  await query(finalQuery, values);
  return true;
};

const deleteTagDb = async (tagId, deletedBy) => {
  const queryText = `
    UPDATE m_tags
    SET 
      deleted_at = GETDATE(),
      deleted_by = $1,
      is_active = 0
    WHERE tag_id = $2 
      AND deleted_at IS NULL
  `;
  
  await query(queryText, [deletedBy, tagId]);
  return true;
};

module.exports = {
  getAllTagsDb,
  getTagByIdDb,
  createTagDb,
  updateTagDb,
  deleteTagDb,
};