/**
 * Imports: Handle imports
 */

const handler = require("../utils/handler");

/**
 * Update DB Function
 * ==============================================================================
 * @description Description
 *
 * @param {object} params - An object containing the function parameters.
 * @param {string} params.dbFullName - Database full name
 * @param {string} params.tableName - Table name
 * @param {object} params.data - Data to add
 * @param {DSQL_TableSchemaType?} params.tableSchema - Table schema
 * @param {string} params.identifierColumnName - Update row identifier column name
 * @param {string|number} params.identifierValue - Update row identifier column value
 * @param {boolean?} params.update - Update this row if it exists
 * @param {string?} params.dbHost - Database host
 * @param {string?} params.dbPassword - Database password
 * @param {string?} params.dbUsername - Database username
 * @param {string?} params.encryptionKey - Encryption key
 * @param {string?} params.encryptionSalt - Encryption salt
 *
 * @returns {object}
 */
module.exports = async function update({ dbFullName, tableName, data, tableSchema, identifierColumnName, identifierValue, update, dbHost, dbPassword, dbUsername, encryptionKey, encryptionSalt }) {
    /**
     * Initialize variables
     */

    ////////////////////////////////////////
    ////////////////////////////////////////
    ////////////////////////////////////////

    /**
     * Handle function logic
     */
    if (duplicateColumnName && typeof duplicateColumnName === "string") {
        const duplicateValue = await handler({
            queryString: `SELECT * FROM \`${tableName}\` WHERE \`${duplicateColumnName}\`=?`,
            queryValuesArray: [duplicateColumnValue],
            database: dbFullName,
            dbHost,
            dbPassword,
            dbUsername,
        });

        if (duplicateValue && duplicateValue[0] && !update) {
            return null;
        } else if (duplicateValue && duplicateValue[0] && update) {
            return await update();
        }
    } else if (duplicateColumnName && typeof duplicateColumnName === "object" && duplicateColumnValue && typeof duplicateColumnValue === "object") {
        const duplicateArray = duplicateColumnName.map((dupColName, index) => {
            return `\`${dupColName}\`='${duplicateColumnValue[index]}'`;
        });

        const duplicateValue = await handler({
            queryString: `SELECT * FROM ${tableName} WHERE ${duplicateArray.join(" AND ")}`,
            database: dbFullName,
        });

        if (duplicateValue && duplicateValue[0] && !update) {
            return null;
        }
    }

    /**
     * Declare variables
     *
     * @description Declare "results" variable
     */
    const dataKeys = Object.keys(data);

    let insertKeysArray = [];
    let insertValuesArray = [];

    for (let i = 0; i < dataKeys.length; i++) {
        const dataKey = dataKeys[i];
        // const correspondingColumnObject = dbColumns.filter((col) => col.Field === dataKey);
        // const { Field, Type, Null, Key, Default, Extra } = correspondingColumnObject;
        let value = data[dataKey];

        const targetFieldSchemaArray = tableSchema ? tableSchema?.fields.filter((field) => field.fieldName === dataKey) : null;
        const targetFieldSchema = targetFieldSchemaArray && targetFieldSchemaArray[0] ? targetFieldSchemaArray[0] : null;

        if (!value) continue;

        if (targetFieldSchema?.encrypted) {
            value = await encrypt(value);
        }

        if (targetFieldSchema?.richText) {
            value = sanitizeHtml(value, sanitizeHtmlOptions).replace(/\n|\r|\n\r/gm, "");
        }

        insertKeysArray.push("`" + dataKey + "`");

        let parsedDataValue = value.toString().replace(/(?<!\\)\'/g, "\\'");

        insertValuesArray.push("'" + parsedDataValue + "'");
    }

    /** ********************************************** */

    insertKeysArray.push("date_created");
    insertValuesArray.push("'" + Date() + "'");

    insertKeysArray.push("date_created_code");
    insertValuesArray.push("'" + Date.now() + "'");

    /** ********************************************** */

    insertKeysArray.push("date_updated");
    insertValuesArray.push("'" + Date() + "'");

    insertKeysArray.push("date_updated_code");
    insertValuesArray.push("'" + Date.now() + "'");

    /** ********************************************** */

    const query = `INSERT INTO ${tableName} (${insertKeysArray.join(",")}) VALUES (${insertValuesArray.join(",")})`;

    const newInsert = await handler({
        queryString: query,
        database: dbFullName,
    });

    ////////////////////////////////////////
    ////////////////////////////////////////
    ////////////////////////////////////////

    /**
     * Return statement
     */
    return newInsert;
};