"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropSymbols = Object.getOwnPropertySymbols;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __propIsEnum = Object.prototype.propertyIsEnumerable;
var __defNormalProp = (obj, key, value) => key in obj ? __defProp(obj, key, { enumerable: true, configurable: true, writable: true, value }) : obj[key] = value;
var __spreadValues = (a, b) => {
  for (var prop in b || (b = {}))
    if (__hasOwnProp.call(b, prop))
      __defNormalProp(a, prop, b[prop]);
  if (__getOwnPropSymbols)
    for (var prop of __getOwnPropSymbols(b)) {
      if (__propIsEnum.call(b, prop))
        __defNormalProp(a, prop, b[prop]);
    }
  return a;
};
const Utils = require("../../utils");
const util = require("util");
const DataTypes = require("../../data-types");
const AbstractQueryGenerator = require("../abstract/query-generator");
const semver = require("semver");
const _ = require("lodash");
const POSTGRES_RESERVED_WORDS = "all,analyse,analyze,and,any,array,as,asc,asymmetric,authorization,binary,both,case,cast,check,collate,collation,column,concurrently,constraint,create,cross,current_catalog,current_date,current_role,current_schema,current_time,current_timestamp,current_user,default,deferrable,desc,distinct,do,else,end,except,false,fetch,for,foreign,freeze,from,full,grant,group,having,ilike,in,initially,inner,intersect,into,is,isnull,join,lateral,leading,left,like,limit,localtime,localtimestamp,natural,not,notnull,null,offset,on,only,or,order,outer,overlaps,placing,primary,references,returning,right,select,session_user,similar,some,symmetric,table,tablesample,then,to,trailing,true,union,unique,user,using,variadic,verbose,when,where,window,with".split(",");
class PostgresQueryGenerator extends AbstractQueryGenerator {
  setSearchPath(searchPath) {
    return `SET search_path to ${searchPath};`;
  }
  createDatabaseQuery(databaseName, options) {
    options = __spreadValues({
      encoding: null,
      collate: null
    }, options);
    const values = {
      database: this.quoteTable(databaseName),
      encoding: options.encoding ? ` ENCODING = ${this.escape(options.encoding)}` : "",
      collation: options.collate ? ` LC_COLLATE = ${this.escape(options.collate)}` : "",
      ctype: options.ctype ? ` LC_CTYPE = ${this.escape(options.ctype)}` : "",
      template: options.template ? ` TEMPLATE = ${this.escape(options.template)}` : ""
    };
    return `CREATE DATABASE ${values.database}${values.encoding}${values.collation}${values.ctype}${values.template};`;
  }
  dropDatabaseQuery(databaseName) {
    return `DROP DATABASE IF EXISTS ${this.quoteTable(databaseName)};`;
  }
  createSchema(schema) {
    const databaseVersion = _.get(this, "sequelize.options.databaseVersion", 0);
    if (databaseVersion && semver.gte(databaseVersion, "9.2.0")) {
      return `CREATE SCHEMA IF NOT EXISTS ${schema};`;
    }
    return `CREATE SCHEMA ${schema};`;
  }
  dropSchema(schema) {
    return `DROP SCHEMA IF EXISTS ${schema} CASCADE;`;
  }
  showSchemasQuery() {
    return "SELECT schema_name FROM information_schema.schemata WHERE schema_name <> 'information_schema' AND schema_name != 'public' AND schema_name !~ E'^pg_';";
  }
  versionQuery() {
    return "SHOW SERVER_VERSION";
  }
  createTableQuery(tableName, attributes, options) {
    options = __spreadValues({}, options);
    const databaseVersion = _.get(this, "sequelize.options.databaseVersion", 0);
    const attrStr = [];
    let comments = "";
    let columnComments = "";
    const quotedTable = this.quoteTable(tableName);
    if (options.comment && typeof options.comment === "string") {
      comments += `; COMMENT ON TABLE ${quotedTable} IS ${this.escape(options.comment)}`;
    }
    for (const attr in attributes) {
      const quotedAttr = this.quoteIdentifier(attr);
      const i = attributes[attr].indexOf("COMMENT ");
      if (i !== -1) {
        const escapedCommentText = this.escape(attributes[attr].substring(i + 8));
        columnComments += `; COMMENT ON COLUMN ${quotedTable}.${quotedAttr} IS ${escapedCommentText}`;
        attributes[attr] = attributes[attr].substring(0, i);
      }
      const dataType = this.dataTypeMapping(tableName, attr, attributes[attr]);
      attrStr.push(`${quotedAttr} ${dataType}`);
    }
    let attributesClause = attrStr.join(", ");
    if (options.uniqueKeys) {
      _.each(options.uniqueKeys, (columns) => {
        if (columns.customIndex) {
          attributesClause += `, UNIQUE (${columns.fields.map((field) => this.quoteIdentifier(field)).join(", ")})`;
        }
      });
    }
    const pks = _.reduce(attributes, (acc, attribute, key) => {
      if (attribute.includes("PRIMARY KEY")) {
        acc.push(this.quoteIdentifier(key));
      }
      return acc;
    }, []).join(",");
    if (pks.length > 0) {
      attributesClause += `, PRIMARY KEY (${pks})`;
    }
    return `CREATE TABLE ${databaseVersion === 0 || semver.gte(databaseVersion, "9.1.0") ? "IF NOT EXISTS " : ""}${quotedTable} (${attributesClause})${comments}${columnComments};`;
  }
  dropTableQuery(tableName, options) {
    options = options || {};
    return `DROP TABLE IF EXISTS ${this.quoteTable(tableName)}${options.cascade ? " CASCADE" : ""};`;
  }
  showTablesQuery() {
    return "SELECT table_name FROM information_schema.tables WHERE table_schema = 'public' AND table_type LIKE '%TABLE' AND table_name != 'spatial_ref_sys';";
  }
  describeTableQuery(tableName, schema) {
    if (!schema)
      schema = "public";
    return `SELECT pk.constraint_type as "Constraint",c.column_name as "Field", c.column_default as "Default",c.is_nullable as "Null", (CASE WHEN c.udt_name = 'hstore' THEN c.udt_name ELSE c.data_type END) || (CASE WHEN c.character_maximum_length IS NOT NULL THEN '(' || c.character_maximum_length || ')' ELSE '' END) as "Type", (SELECT array_agg(e.enumlabel) FROM pg_catalog.pg_type t JOIN pg_catalog.pg_enum e ON t.oid=e.enumtypid WHERE t.typname=c.udt_name) AS "special", (SELECT pgd.description FROM pg_catalog.pg_statio_all_tables AS st INNER JOIN pg_catalog.pg_description pgd on (pgd.objoid=st.relid) WHERE c.ordinal_position=pgd.objsubid AND c.table_name=st.relname) AS "Comment" FROM information_schema.columns c LEFT JOIN (SELECT tc.table_schema, tc.table_name, cu.column_name, tc.constraint_type FROM information_schema.TABLE_CONSTRAINTS tc JOIN information_schema.KEY_COLUMN_USAGE  cu ON tc.table_schema=cu.table_schema and tc.table_name=cu.table_name and tc.constraint_name=cu.constraint_name and tc.constraint_type='PRIMARY KEY') pk ON pk.table_schema=c.table_schema AND pk.table_name=c.table_name AND pk.column_name=c.column_name WHERE c.table_name = ${this.escape(tableName)} AND c.table_schema = ${this.escape(schema)} `;
  }
  _checkValidJsonStatement(stmt) {
    if (typeof stmt !== "string") {
      return false;
    }
    const jsonFunctionRegex = /^\s*((?:[a-z]+_){0,2}jsonb?(?:_[a-z]+){0,2})\([^)]*\)/i;
    const jsonOperatorRegex = /^\s*(->>?|#>>?|@>|<@|\?[|&]?|\|{2}|#-)/i;
    const tokenCaptureRegex = /^\s*((?:([`"'])(?:(?!\2).|\2{2})*\2)|[\w\d\s]+|[().,;+-])/i;
    let currentIndex = 0;
    let openingBrackets = 0;
    let closingBrackets = 0;
    let hasJsonFunction = false;
    let hasInvalidToken = false;
    while (currentIndex < stmt.length) {
      const string = stmt.substr(currentIndex);
      const functionMatches = jsonFunctionRegex.exec(string);
      if (functionMatches) {
        currentIndex += functionMatches[0].indexOf("(");
        hasJsonFunction = true;
        continue;
      }
      const operatorMatches = jsonOperatorRegex.exec(string);
      if (operatorMatches) {
        currentIndex += operatorMatches[0].length;
        hasJsonFunction = true;
        continue;
      }
      const tokenMatches = tokenCaptureRegex.exec(string);
      if (tokenMatches) {
        const capturedToken = tokenMatches[1];
        if (capturedToken === "(") {
          openingBrackets++;
        } else if (capturedToken === ")") {
          closingBrackets++;
        } else if (capturedToken === ";") {
          hasInvalidToken = true;
          break;
        }
        currentIndex += tokenMatches[0].length;
        continue;
      }
      break;
    }
    hasInvalidToken |= openingBrackets !== closingBrackets;
    if (hasJsonFunction && hasInvalidToken) {
      throw new Error(`Invalid json statement: ${stmt}`);
    }
    return hasJsonFunction;
  }
  handleSequelizeMethod(smth, tableName, factory, options, prepend) {
    if (smth instanceof Utils.Json) {
      if (smth.conditions) {
        const conditions = this.parseConditionObject(smth.conditions).map((condition) => `${this.jsonPathExtractionQuery(condition.path[0], _.tail(condition.path))} = '${condition.value}'`);
        return conditions.join(" AND ");
      }
      if (smth.path) {
        let str;
        if (this._checkValidJsonStatement(smth.path)) {
          str = smth.path;
        } else {
          const paths = _.toPath(smth.path);
          const column = paths.shift();
          str = this.jsonPathExtractionQuery(column, paths);
        }
        if (smth.value) {
          str += util.format(" = %s", this.escape(smth.value));
        }
        return str;
      }
    }
    return super.handleSequelizeMethod.call(this, smth, tableName, factory, options, prepend);
  }
  addColumnQuery(table, key, attribute) {
    const dbDataType = this.attributeToSQL(attribute, { context: "addColumn", table, key });
    const dataType = attribute.type || attribute;
    const definition = this.dataTypeMapping(table, key, dbDataType);
    const quotedKey = this.quoteIdentifier(key);
    const quotedTable = this.quoteTable(this.extractTableDetails(table));
    let query = `ALTER TABLE ${quotedTable} ADD COLUMN ${quotedKey} ${definition};`;
    if (dataType instanceof DataTypes.ENUM) {
      query = this.pgEnum(table, key, dataType) + query;
    } else if (dataType.type && dataType.type instanceof DataTypes.ENUM) {
      query = this.pgEnum(table, key, dataType.type) + query;
    }
    return query;
  }
  removeColumnQuery(tableName, attributeName) {
    const quotedTableName = this.quoteTable(this.extractTableDetails(tableName));
    const quotedAttributeName = this.quoteIdentifier(attributeName);
    return `ALTER TABLE ${quotedTableName} DROP COLUMN ${quotedAttributeName};`;
  }
  changeColumnQuery(tableName, attributes) {
    const query = (subQuery) => `ALTER TABLE ${this.quoteTable(tableName)} ALTER COLUMN ${subQuery};`;
    const sql = [];
    for (const attributeName in attributes) {
      let definition = this.dataTypeMapping(tableName, attributeName, attributes[attributeName]);
      let attrSql = "";
      if (definition.includes("NOT NULL")) {
        attrSql += query(`${this.quoteIdentifier(attributeName)} SET NOT NULL`);
        definition = definition.replace("NOT NULL", "").trim();
      } else if (!definition.includes("REFERENCES")) {
        attrSql += query(`${this.quoteIdentifier(attributeName)} DROP NOT NULL`);
      }
      if (definition.includes("DEFAULT")) {
        attrSql += query(`${this.quoteIdentifier(attributeName)} SET DEFAULT ${definition.match(/DEFAULT ([^;]+)/)[1]}`);
        definition = definition.replace(/(DEFAULT[^;]+)/, "").trim();
      } else if (!definition.includes("REFERENCES")) {
        attrSql += query(`${this.quoteIdentifier(attributeName)} DROP DEFAULT`);
      }
      if (attributes[attributeName].startsWith("ENUM(")) {
        attrSql += this.pgEnum(tableName, attributeName, attributes[attributeName]);
        definition = definition.replace(/^ENUM\(.+\)/, this.pgEnumName(tableName, attributeName, { schema: false }));
        definition += ` USING (${this.quoteIdentifier(attributeName)}::${this.pgEnumName(tableName, attributeName)})`;
      }
      if (definition.match(/UNIQUE;*$/)) {
        definition = definition.replace(/UNIQUE;*$/, "");
        attrSql += query(`ADD UNIQUE (${this.quoteIdentifier(attributeName)})`).replace("ALTER COLUMN", "");
      }
      if (definition.includes("REFERENCES")) {
        definition = definition.replace(/.+?(?=REFERENCES)/, "");
        attrSql += query(`ADD FOREIGN KEY (${this.quoteIdentifier(attributeName)}) ${definition}`).replace("ALTER COLUMN", "");
      } else {
        attrSql += query(`${this.quoteIdentifier(attributeName)} TYPE ${definition}`);
      }
      sql.push(attrSql);
    }
    return sql.join("");
  }
  renameColumnQuery(tableName, attrBefore, attributes) {
    const attrString = [];
    for (const attributeName in attributes) {
      attrString.push(`${this.quoteIdentifier(attrBefore)} TO ${this.quoteIdentifier(attributeName)}`);
    }
    return `ALTER TABLE ${this.quoteTable(tableName)} RENAME COLUMN ${attrString.join(", ")};`;
  }
  fn(fnName, tableName, parameters, body, returns, language) {
    fnName = fnName || "testfunc";
    language = language || "plpgsql";
    returns = returns ? `RETURNS ${returns}` : "";
    parameters = parameters || "";
    return `CREATE OR REPLACE FUNCTION pg_temp.${fnName}(${parameters}) ${returns} AS $func$ BEGIN ${body} END; $func$ LANGUAGE ${language}; SELECT * FROM pg_temp.${fnName}();`;
  }
  truncateTableQuery(tableName, options = {}) {
    return [
      `TRUNCATE ${this.quoteTable(tableName)}`,
      options.restartIdentity ? " RESTART IDENTITY" : "",
      options.cascade ? " CASCADE" : ""
    ].join("");
  }
  deleteQuery(tableName, where, options = {}, model) {
    const table = this.quoteTable(tableName);
    let whereClause = this.getWhereConditions(where, null, model, options);
    const limit = options.limit ? ` LIMIT ${this.escape(options.limit)}` : "";
    let primaryKeys = "";
    let primaryKeysSelection = "";
    if (whereClause) {
      whereClause = ` WHERE ${whereClause}`;
    }
    if (options.limit) {
      if (!model) {
        throw new Error("Cannot LIMIT delete without a model.");
      }
      const pks = Object.values(model.primaryKeys).map((pk) => this.quoteIdentifier(pk.field)).join(",");
      primaryKeys = model.primaryKeyAttributes.length > 1 ? `(${pks})` : pks;
      primaryKeysSelection = pks;
      return `DELETE FROM ${table} WHERE ${primaryKeys} IN (SELECT ${primaryKeysSelection} FROM ${table}${whereClause}${limit})`;
    }
    return `DELETE FROM ${table}${whereClause}`;
  }
  showIndexesQuery(tableName) {
    let schemaJoin = "";
    let schemaWhere = "";
    if (typeof tableName !== "string") {
      schemaJoin = ", pg_namespace s";
      schemaWhere = ` AND s.oid = t.relnamespace AND s.nspname = '${tableName.schema}'`;
      tableName = tableName.tableName;
    }
    return `SELECT i.relname AS name, ix.indisprimary AS primary, ix.indisunique AS unique, ix.indkey AS indkey, array_agg(a.attnum) as column_indexes, array_agg(a.attname) AS column_names, pg_get_indexdef(ix.indexrelid) AS definition FROM pg_class t, pg_class i, pg_index ix, pg_attribute a${schemaJoin} WHERE t.oid = ix.indrelid AND i.oid = ix.indexrelid AND a.attrelid = t.oid AND t.relkind = 'r' and t.relname = '${tableName}'${schemaWhere} GROUP BY i.relname, ix.indexrelid, ix.indisprimary, ix.indisunique, ix.indkey ORDER BY i.relname;`;
  }
  showConstraintsQuery(tableName) {
    return [
      'SELECT constraint_catalog AS "constraintCatalog",',
      'constraint_schema AS "constraintSchema",',
      'constraint_name AS "constraintName",',
      'table_catalog AS "tableCatalog",',
      'table_schema AS "tableSchema",',
      'table_name AS "tableName",',
      'constraint_type AS "constraintType",',
      'is_deferrable AS "isDeferrable",',
      'initially_deferred AS "initiallyDeferred"',
      "from INFORMATION_SCHEMA.table_constraints",
      `WHERE table_name='${tableName}';`
    ].join(" ");
  }
  removeIndexQuery(tableName, indexNameOrAttributes, options) {
    let indexName = indexNameOrAttributes;
    if (typeof indexName !== "string") {
      indexName = Utils.underscore(`${tableName}_${indexNameOrAttributes.join("_")}`);
    }
    return [
      "DROP INDEX",
      options && options.concurrently && "CONCURRENTLY",
      `IF EXISTS ${this.quoteIdentifiers(indexName)}`
    ].filter(Boolean).join(" ");
  }
  addLimitAndOffset(options) {
    let fragment = "";
    if (options.limit != null) {
      fragment += " LIMIT " + this.escape(options.limit);
    }
    if (options.offset != null) {
      fragment += " OFFSET " + this.escape(options.offset);
    }
    return fragment;
  }
  attributeToSQL(attribute, options) {
    if (!_.isPlainObject(attribute)) {
      attribute = {
        type: attribute
      };
    }
    let type;
    if (attribute.type instanceof DataTypes.ENUM || attribute.type instanceof DataTypes.ARRAY && attribute.type.type instanceof DataTypes.ENUM) {
      const enumType = attribute.type.type || attribute.type;
      let values = attribute.values;
      if (enumType.values && !attribute.values) {
        values = enumType.values;
      }
      if (Array.isArray(values) && values.length > 0) {
        type = `ENUM(${values.map((value) => this.escape(value)).join(", ")})`;
        if (attribute.type instanceof DataTypes.ARRAY) {
          type += "[]";
        }
      } else {
        throw new Error("Values for ENUM haven't been defined.");
      }
    }
    if (!type) {
      type = attribute.type;
    }
    let sql = type.toString();
    if (Object.prototype.hasOwnProperty.call(attribute, "allowNull") && !attribute.allowNull) {
      sql += " NOT NULL";
    }
    if (attribute.autoIncrement) {
      if (attribute.autoIncrementIdentity) {
        sql += " GENERATED BY DEFAULT AS IDENTITY";
      } else {
        sql += " SERIAL";
      }
    }
    if (Utils.defaultValueSchemable(attribute.defaultValue)) {
      sql += ` DEFAULT ${this.escape(attribute.defaultValue, attribute)}`;
    }
    if (attribute.unique === true) {
      sql += " UNIQUE";
    }
    if (attribute.primaryKey) {
      sql += " PRIMARY KEY";
    }
    if (attribute.references) {
      let referencesTable = this.quoteTable(attribute.references.model);
      let schema;
      if (options.schema) {
        schema = options.schema;
      } else if ((!attribute.references.model || typeof attribute.references.model == "string") && options.table && options.table.schema) {
        schema = options.table.schema;
      }
      if (schema) {
        referencesTable = this.quoteTable(this.addSchema({
          tableName: referencesTable,
          _schema: schema
        }));
      }
      let referencesKey;
      if (attribute.references.key) {
        referencesKey = this.quoteIdentifiers(attribute.references.key);
      } else {
        referencesKey = this.quoteIdentifier("id");
      }
      sql += ` REFERENCES ${referencesTable} (${referencesKey})`;
      if (attribute.onDelete) {
        sql += ` ON DELETE ${attribute.onDelete.toUpperCase()}`;
      }
      if (attribute.onUpdate) {
        sql += ` ON UPDATE ${attribute.onUpdate.toUpperCase()}`;
      }
      if (attribute.references.deferrable) {
        sql += ` ${attribute.references.deferrable.toString(this)}`;
      }
    }
    if (attribute.comment && typeof attribute.comment === "string") {
      if (options && ["addColumn", "changeColumn"].includes(options.context)) {
        const quotedAttr = this.quoteIdentifier(options.key);
        const escapedCommentText = this.escape(attribute.comment);
        sql += `; COMMENT ON COLUMN ${this.quoteTable(options.table)}.${quotedAttr} IS ${escapedCommentText}`;
      } else {
        sql += ` COMMENT ${attribute.comment}`;
      }
    }
    return sql;
  }
  deferConstraintsQuery(options) {
    return options.deferrable.toString(this);
  }
  setConstraintQuery(columns, type) {
    let columnFragment = "ALL";
    if (columns) {
      columnFragment = columns.map((column) => this.quoteIdentifier(column)).join(", ");
    }
    return `SET CONSTRAINTS ${columnFragment} ${type}`;
  }
  setDeferredQuery(columns) {
    return this.setConstraintQuery(columns, "DEFERRED");
  }
  setImmediateQuery(columns) {
    return this.setConstraintQuery(columns, "IMMEDIATE");
  }
  attributesToSQL(attributes, options) {
    const result = {};
    for (const key in attributes) {
      const attribute = attributes[key];
      result[attribute.field || key] = this.attributeToSQL(attribute, __spreadValues({ key }, options));
    }
    return result;
  }
  createTrigger(tableName, triggerName, eventType, fireOnSpec, functionName, functionParams, optionsArray) {
    const decodedEventType = this.decodeTriggerEventType(eventType);
    const eventSpec = this.expandTriggerEventSpec(fireOnSpec);
    const expandedOptions = this.expandOptions(optionsArray);
    const paramList = this._expandFunctionParamList(functionParams);
    return `CREATE ${this.triggerEventTypeIsConstraint(eventType)}TRIGGER ${this.quoteIdentifier(triggerName)} ${decodedEventType} ${eventSpec} ON ${this.quoteTable(tableName)}${expandedOptions ? ` ${expandedOptions}` : ""} EXECUTE PROCEDURE ${functionName}(${paramList});`;
  }
  dropTrigger(tableName, triggerName) {
    return `DROP TRIGGER ${this.quoteIdentifier(triggerName)} ON ${this.quoteTable(tableName)} RESTRICT;`;
  }
  renameTrigger(tableName, oldTriggerName, newTriggerName) {
    return `ALTER TRIGGER ${this.quoteIdentifier(oldTriggerName)} ON ${this.quoteTable(tableName)} RENAME TO ${this.quoteIdentifier(newTriggerName)};`;
  }
  createFunction(functionName, params, returnType, language, body, optionsArray, options) {
    if (!functionName || !returnType || !language || !body)
      throw new Error("createFunction missing some parameters. Did you pass functionName, returnType, language and body?");
    const paramList = this._expandFunctionParamList(params);
    const variableList = options && options.variables ? this._expandFunctionVariableList(options.variables) : "";
    const expandedOptionsArray = this.expandOptions(optionsArray);
    const statement = options && options.force ? "CREATE OR REPLACE FUNCTION" : "CREATE FUNCTION";
    return `${statement} ${functionName}(${paramList}) RETURNS ${returnType} AS $func$ ${variableList} BEGIN ${body} END; $func$ language '${language}'${expandedOptionsArray};`;
  }
  dropFunction(functionName, params) {
    if (!functionName)
      throw new Error("requires functionName");
    const paramList = this._expandFunctionParamList(params);
    return `DROP FUNCTION ${functionName}(${paramList}) RESTRICT;`;
  }
  renameFunction(oldFunctionName, params, newFunctionName) {
    const paramList = this._expandFunctionParamList(params);
    return `ALTER FUNCTION ${oldFunctionName}(${paramList}) RENAME TO ${newFunctionName};`;
  }
  pgEscapeAndQuote(val) {
    return this.quoteIdentifier(Utils.removeTicks(this.escape(val), "'"));
  }
  _expandFunctionParamList(params) {
    if (params === void 0 || !Array.isArray(params)) {
      throw new Error("_expandFunctionParamList: function parameters array required, including an empty one for no arguments");
    }
    const paramList = [];
    params.forEach((curParam) => {
      const paramDef = [];
      if (curParam.type) {
        if (curParam.direction) {
          paramDef.push(curParam.direction);
        }
        if (curParam.name) {
          paramDef.push(curParam.name);
        }
        paramDef.push(curParam.type);
      } else {
        throw new Error("function or trigger used with a parameter without any type");
      }
      const joined = paramDef.join(" ");
      if (joined)
        paramList.push(joined);
    });
    return paramList.join(", ");
  }
  _expandFunctionVariableList(variables) {
    if (!Array.isArray(variables)) {
      throw new Error("_expandFunctionVariableList: function variables must be an array");
    }
    const variableDefinitions = [];
    variables.forEach((variable) => {
      if (!variable.name || !variable.type) {
        throw new Error("function variable must have a name and type");
      }
      let variableDefinition = `DECLARE ${variable.name} ${variable.type}`;
      if (variable.default) {
        variableDefinition += ` := ${variable.default}`;
      }
      variableDefinition += ";";
      variableDefinitions.push(variableDefinition);
    });
    return variableDefinitions.join(" ");
  }
  expandOptions(options) {
    return options === void 0 || _.isEmpty(options) ? "" : options.join(" ");
  }
  decodeTriggerEventType(eventSpecifier) {
    const EVENT_DECODER = {
      "after": "AFTER",
      "before": "BEFORE",
      "instead_of": "INSTEAD OF",
      "after_constraint": "AFTER"
    };
    if (!EVENT_DECODER[eventSpecifier]) {
      throw new Error(`Invalid trigger event specified: ${eventSpecifier}`);
    }
    return EVENT_DECODER[eventSpecifier];
  }
  triggerEventTypeIsConstraint(eventSpecifier) {
    return eventSpecifier === "after_constraint" ? "CONSTRAINT " : "";
  }
  expandTriggerEventSpec(fireOnSpec) {
    if (_.isEmpty(fireOnSpec)) {
      throw new Error("no table change events specified to trigger on");
    }
    return _.map(fireOnSpec, (fireValue, fireKey) => {
      const EVENT_MAP = {
        "insert": "INSERT",
        "update": "UPDATE",
        "delete": "DELETE",
        "truncate": "TRUNCATE"
      };
      if (!EVENT_MAP[fireValue]) {
        throw new Error(`parseTriggerEventSpec: undefined trigger event ${fireKey}`);
      }
      let eventSpec = EVENT_MAP[fireValue];
      if (eventSpec === "UPDATE") {
        if (Array.isArray(fireValue) && fireValue.length > 0) {
          eventSpec += ` OF ${fireValue.join(", ")}`;
        }
      }
      return eventSpec;
    }).join(" OR ");
  }
  pgEnumName(tableName, attr, options) {
    options = options || {};
    const tableDetails = this.extractTableDetails(tableName, options);
    let enumName = Utils.addTicks(Utils.generateEnumName(tableDetails.tableName, attr), '"');
    if (options.schema !== false && tableDetails.schema) {
      enumName = this.quoteIdentifier(tableDetails.schema) + tableDetails.delimiter + enumName;
    }
    return enumName;
  }
  pgListEnums(tableName, attrName, options) {
    let enumName = "";
    const tableDetails = this.extractTableDetails(tableName, options);
    if (tableDetails.tableName && attrName) {
      enumName = ` AND t.typname=${this.pgEnumName(tableDetails.tableName, attrName, { schema: false }).replace(/"/g, "'")}`;
    }
    return `SELECT t.typname enum_name, array_agg(e.enumlabel ORDER BY enumsortorder) enum_value FROM pg_type t JOIN pg_enum e ON t.oid = e.enumtypid JOIN pg_catalog.pg_namespace n ON n.oid = t.typnamespace WHERE n.nspname = '${tableDetails.schema}'${enumName} GROUP BY 1`;
  }
  pgEnum(tableName, attr, dataType, options) {
    const enumName = this.pgEnumName(tableName, attr, options);
    let values;
    if (dataType.values) {
      values = `ENUM(${dataType.values.map((value) => this.escape(value)).join(", ")})`;
    } else {
      values = dataType.toString().match(/^ENUM\(.+\)/)[0];
    }
    let sql = `CREATE TYPE ${enumName} AS ${values};`;
    if (!!options && options.force === true) {
      sql = this.pgEnumDrop(tableName, attr) + sql;
    }
    return sql;
  }
  pgEnumAdd(tableName, attr, value, options) {
    const enumName = this.pgEnumName(tableName, attr);
    let sql = `ALTER TYPE ${enumName} ADD VALUE `;
    if (semver.gte(this.sequelize.options.databaseVersion, "9.3.0")) {
      sql += "IF NOT EXISTS ";
    }
    sql += this.escape(value);
    if (options.before) {
      sql += ` BEFORE ${this.escape(options.before)}`;
    } else if (options.after) {
      sql += ` AFTER ${this.escape(options.after)}`;
    }
    return sql;
  }
  pgEnumDrop(tableName, attr, enumName) {
    enumName = enumName || this.pgEnumName(tableName, attr);
    return `DROP TYPE IF EXISTS ${enumName}; `;
  }
  fromArray(text) {
    text = text.replace(/^{/, "").replace(/}$/, "");
    let matches = text.match(/("(?:\\.|[^"\\\\])*"|[^,]*)(?:\s*,\s*|\s*$)/ig);
    if (matches.length < 1) {
      return [];
    }
    matches = matches.map((m) => m.replace(/",$/, "").replace(/,$/, "").replace(/(^"|"$)/g, ""));
    return matches.slice(0, -1);
  }
  dataTypeMapping(tableName, attr, dataType) {
    if (dataType.includes("PRIMARY KEY")) {
      dataType = dataType.replace("PRIMARY KEY", "");
    }
    if (dataType.includes("SERIAL")) {
      if (dataType.includes("BIGINT")) {
        dataType = dataType.replace("SERIAL", "BIGSERIAL");
        dataType = dataType.replace("BIGINT", "");
      } else if (dataType.includes("SMALLINT")) {
        dataType = dataType.replace("SERIAL", "SMALLSERIAL");
        dataType = dataType.replace("SMALLINT", "");
      } else {
        dataType = dataType.replace("INTEGER", "");
      }
      dataType = dataType.replace("NOT NULL", "");
    }
    if (dataType.startsWith("ENUM(")) {
      dataType = dataType.replace(/^ENUM\(.+\)/, this.pgEnumName(tableName, attr));
    }
    return dataType;
  }
  getForeignKeysQuery(tableName) {
    return `SELECT conname as constraint_name, pg_catalog.pg_get_constraintdef(r.oid, true) as condef FROM pg_catalog.pg_constraint r WHERE r.conrelid = (SELECT oid FROM pg_class WHERE relname = '${tableName}' LIMIT 1) AND r.contype = 'f' ORDER BY 1;`;
  }
  _getForeignKeyReferencesQueryPrefix() {
    return "SELECT DISTINCT tc.constraint_name as constraint_name, tc.constraint_schema as constraint_schema, tc.constraint_catalog as constraint_catalog, tc.table_name as table_name,tc.table_schema as table_schema,tc.table_catalog as table_catalog,kcu.column_name as column_name,ccu.table_schema  AS referenced_table_schema,ccu.table_catalog  AS referenced_table_catalog,ccu.table_name  AS referenced_table_name,ccu.column_name AS referenced_column_name FROM information_schema.table_constraints AS tc JOIN information_schema.key_column_usage AS kcu ON tc.constraint_name = kcu.constraint_name JOIN information_schema.constraint_column_usage AS ccu ON ccu.constraint_name = tc.constraint_name ";
  }
  getForeignKeyReferencesQuery(tableName, catalogName, schemaName) {
    return `${this._getForeignKeyReferencesQueryPrefix()}WHERE constraint_type = 'FOREIGN KEY' AND tc.table_name = '${tableName}'${catalogName ? ` AND tc.table_catalog = '${catalogName}'` : ""}${schemaName ? ` AND tc.table_schema = '${schemaName}'` : ""}`;
  }
  getForeignKeyReferenceQuery(table, columnName) {
    const tableName = table.tableName || table;
    const schema = table.schema;
    return `${this._getForeignKeyReferencesQueryPrefix()}WHERE constraint_type = 'FOREIGN KEY' AND tc.table_name='${tableName}' AND  kcu.column_name = '${columnName}'${schema ? ` AND tc.table_schema = '${schema}'` : ""}`;
  }
  dropForeignKeyQuery(tableName, foreignKey) {
    return `ALTER TABLE ${this.quoteTable(tableName)} DROP CONSTRAINT ${this.quoteIdentifier(foreignKey)};`;
  }
  quoteIdentifier(identifier, force) {
    const optForceQuote = force || false;
    const optQuoteIdentifiers = this.options.quoteIdentifiers !== false;
    const rawIdentifier = Utils.removeTicks(identifier, '"');
    if (optForceQuote === true || optQuoteIdentifiers !== false || identifier.includes(".") || identifier.includes("->") || POSTGRES_RESERVED_WORDS.includes(rawIdentifier.toLowerCase())) {
      return Utils.addTicks(rawIdentifier, '"');
    }
    return rawIdentifier;
  }
}
module.exports = PostgresQueryGenerator;
//# sourceMappingURL=query-generator.js.map
