import { aliasedTable, aliasedTableColumn, mapColumnsInAliasedSQLToAlias, mapColumnsInSQLToAlias } from "../alias.js";
import { CasingCache } from "../casing.js";
import { Column } from "../column.js";
import { entityKind, is } from "../entity.js";
import { DrizzleError } from "../errors.js";
import {
  getOperators,
  getOrderByOperators,
  Many,
  normalizeRelation,
  One
} from "../relations.js";
import { and, eq } from "../sql/expressions/index.js";
import { Param, SQL, sql, View } from "../sql/sql.js";
import { Subquery } from "../subquery.js";
import { getTableName, getTableUniqueName, Table } from "../table.js";
import { orderSelectedFields } from "../utils.js";
import { ViewBaseConfig } from "../view-common.js";
import { MySqlColumn } from "./columns/common.js";
import { MySqlTable } from "./table.js";
import { MySqlViewBase } from "./view-base.js";
class MySqlDialect {
  static [entityKind] = "MySqlDialect";
  /** @internal */
  casing;
  constructor(config) {
    this.casing = new CasingCache(config?.casing);
  }
  async migrate(migrations, session, config) {
    const migrationsTable = config.migrationsTable ?? "__drizzle_migrations";
    const migrationTableCreate = sql`
			create table if not exists ${sql.identifier(migrationsTable)} (
				id serial primary key,
				hash text not null,
				created_at bigint
			)
		`;
    await session.execute(migrationTableCreate);
    const dbMigrations = await session.all(
      sql`select id, hash, created_at from ${sql.identifier(migrationsTable)} order by created_at desc limit 1`
    );
    const lastDbMigration = dbMigrations[0];
    await session.transaction(async (tx) => {
      for (const migration of migrations) {
        if (!lastDbMigration || Number(lastDbMigration.created_at) < migration.folderMillis) {
          for (const stmt of migration.sql) {
            await tx.execute(sql.raw(stmt));
          }
          await tx.execute(
            sql`insert into ${sql.identifier(
              migrationsTable
            )} (\`hash\`, \`created_at\`) values(${migration.hash}, ${migration.folderMillis})`
          );
        }
      }
    });
  }
  escapeName(name) {
    return `\`${name.replace(/`/g, "``")}\``;
  }
  escapeParam(_num) {
    return `?`;
  }
  escapeString(str) {
    return `'${str.replace(/'/g, "''")}'`;
  }
  buildWithCTE(queries) {
    if (!queries?.length) return void 0;
    const withSqlChunks = [sql`with `];
    for (const [i, w] of queries.entries()) {
      withSqlChunks.push(sql`${sql.identifier(w._.alias)} as (${w._.sql})`);
      if (i < queries.length - 1) {
        withSqlChunks.push(sql`, `);
      }
    }
    withSqlChunks.push(sql` `);
    return sql.join(withSqlChunks);
  }
  buildDeleteQuery({
    table,
    where,
    returning,
    withList,
    limit,
    orderBy
  }) {
    const withSql = this.buildWithCTE(withList);
    const returningSql = returning ? sql` returning ${this.buildSelection(returning, { isSingleTable: true })}` : void 0;
    const whereSql = where ? sql` where ${where}` : void 0;
    const orderBySql = this.buildOrderBy(orderBy);
    const limitSql = this.buildLimit(limit);
    return sql`${withSql}delete from ${table}${whereSql}${orderBySql}${limitSql}${returningSql}`;
  }
  buildUpdateSet(table, set) {
    const tableColumns = table[Table.Symbol.Columns];
    const columnNames = Object.keys(tableColumns).filter(
      (colName) => set[colName] !== void 0 || tableColumns[colName]?.onUpdateFn !== void 0
    );
    const setSize = columnNames.length;
    return sql.join(
      columnNames.flatMap((colName, i) => {
        const col = tableColumns[colName];
        const onUpdateFnResult = col.onUpdateFn?.();
        const value = set[colName] ?? (is(onUpdateFnResult, SQL) ? onUpdateFnResult : sql.param(onUpdateFnResult, col));
        const res = sql`${sql.identifier(this.casing.getColumnCasing(col))} = ${value}`;
        if (i < setSize - 1) {
          return [res, sql.raw(", ")];
        }
        return [res];
      })
    );
  }
  buildUpdateQuery({
    table,
    set,
    where,
    returning,
    withList,
    limit,
    orderBy
  }) {
    const withSql = this.buildWithCTE(withList);
    const setSql = this.buildUpdateSet(table, set);
    const returningSql = returning ? sql` returning ${this.buildSelection(returning, { isSingleTable: true })}` : void 0;
    const whereSql = where ? sql` where ${where}` : void 0;
    const orderBySql = this.buildOrderBy(orderBy);
    const limitSql = this.buildLimit(limit);
    return sql`${withSql}update ${table} set ${setSql}${whereSql}${orderBySql}${limitSql}${returningSql}`;
  }
  /**
   * Builds selection SQL with provided fields/expressions
   *
   * Examples:
   *
   * `select <selection> from`
   *
   * `insert ... returning <selection>`
   *
   * If `isSingleTable` is true, then columns won't be prefixed with table name
   */
  buildSelection(fields, { isSingleTable = false } = {}) {
    const columnsLen = fields.length;
    const chunks = fields.flatMap(({ field }, i) => {
      const chunk = [];
      if (is(field, SQL.Aliased) && field.isSelectionField) {
        chunk.push(sql.identifier(field.fieldAlias));
      } else if (is(field, SQL.Aliased) || is(field, SQL)) {
        const query = is(field, SQL.Aliased) ? field.sql : field;
        if (isSingleTable) {
          chunk.push(
            new SQL(
              query.queryChunks.map((c) => {
                if (is(c, MySqlColumn)) {
                  return sql.identifier(this.casing.getColumnCasing(c));
                }
                return c;
              })
            )
          );
        } else {
          chunk.push(query);
        }
        if (is(field, SQL.Aliased)) {
          chunk.push(sql` as ${sql.identifier(field.fieldAlias)}`);
        }
      } else if (is(field, Column)) {
        if (isSingleTable) {
          chunk.push(sql.identifier(this.casing.getColumnCasing(field)));
        } else {
          chunk.push(field);
        }
      } else if (is(field, Subquery)) {
        const entries = Object.entries(field._.selectedFields);
        if (entries.length === 1) {
          const entry = entries[0][1];
          const fieldDecoder = is(entry, SQL) ? entry.decoder : is(entry, Column) ? { mapFromDriverValue: (v) => entry.mapFromDriverValue(v) } : entry.sql.decoder;
          if (fieldDecoder) {
            field._.sql.decoder = fieldDecoder;
          }
        }
        chunk.push(field);
      }
      if (i < columnsLen - 1) {
        chunk.push(sql`, `);
      }
      return chunk;
    });
    return sql.join(chunks);
  }
  buildLimit(limit) {
    return typeof limit === "object" || typeof limit === "number" && limit >= 0 ? sql` limit ${limit}` : void 0;
  }
  buildOrderBy(orderBy) {
    return orderBy && orderBy.length > 0 ? sql` order by ${sql.join(orderBy, sql`, `)}` : void 0;
  }
  buildIndex({
    indexes,
    indexFor
  }) {
    return indexes && indexes.length > 0 ? sql` ${sql.raw(indexFor)} INDEX (${sql.raw(indexes.join(`, `))})` : void 0;
  }
  buildSelectQuery({
    withList,
    fields,
    fieldsFlat,
    where,
    having,
    table,
    joins,
    orderBy,
    groupBy,
    limit,
    offset,
    lockingClause,
    distinct,
    setOperators,
    useIndex,
    forceIndex,
    ignoreIndex
  }) {
    const fieldsList = fieldsFlat ?? orderSelectedFields(fields);
    for (const f of fieldsList) {
      if (is(f.field, Column) && getTableName(f.field.table) !== (is(table, Subquery) ? table._.alias : is(table, MySqlViewBase) ? table[ViewBaseConfig].name : is(table, SQL) ? void 0 : getTableName(table)) && !((table2) => joins?.some(
        ({ alias }) => alias === (table2[Table.Symbol.IsAlias] ? getTableName(table2) : table2[Table.Symbol.BaseName])
      ))(f.field.table)) {
        const tableName = getTableName(f.field.table);
        throw new Error(
          `Your "${f.path.join(
            "->"
          )}" field references a column "${tableName}"."${f.field.name}", but the table "${tableName}" is not part of the query! Did you forget to join it?`
        );
      }
    }
    const isSingleTable = !joins || joins.length === 0;
    const withSql = this.buildWithCTE(withList);
    const distinctSql = distinct ? sql` distinct` : void 0;
    const selection = this.buildSelection(fieldsList, { isSingleTable });
    const tableSql = (() => {
      if (is(table, Table) && table[Table.Symbol.IsAlias]) {
        return sql`${sql`${sql.identifier(table[Table.Symbol.Schema] ?? "")}.`.if(table[Table.Symbol.Schema])}${sql.identifier(
          table[Table.Symbol.OriginalName]
        )} ${sql.identifier(table[Table.Symbol.Name])}`;
      }
      return table;
    })();
    const joinsArray = [];
    if (joins) {
      for (const [index, joinMeta] of joins.entries()) {
        if (index === 0) {
          joinsArray.push(sql` `);
        }
        const table2 = joinMeta.table;
        const lateralSql = joinMeta.lateral ? sql` lateral` : void 0;
        const onSql = joinMeta.on ? sql` on ${joinMeta.on}` : void 0;
        if (is(table2, MySqlTable)) {
          const tableName = table2[MySqlTable.Symbol.Name];
          const tableSchema = table2[MySqlTable.Symbol.Schema];
          const origTableName = table2[MySqlTable.Symbol.OriginalName];
          const alias = tableName === origTableName ? void 0 : joinMeta.alias;
          const useIndexSql2 = this.buildIndex({
            indexes: joinMeta.useIndex,
            indexFor: "USE"
          });
          const forceIndexSql2 = this.buildIndex({
            indexes: joinMeta.forceIndex,
            indexFor: "FORCE"
          });
          const ignoreIndexSql2 = this.buildIndex({
            indexes: joinMeta.ignoreIndex,
            indexFor: "IGNORE"
          });
          joinsArray.push(
            sql`${sql.raw(joinMeta.joinType)} join${lateralSql} ${tableSchema ? sql`${sql.identifier(tableSchema)}.` : void 0}${sql.identifier(origTableName)}${useIndexSql2}${forceIndexSql2}${ignoreIndexSql2}${alias && sql` ${sql.identifier(alias)}`}${onSql}`
          );
        } else if (is(table2, View)) {
          const viewName = table2[ViewBaseConfig].name;
          const viewSchema = table2[ViewBaseConfig].schema;
          const origViewName = table2[ViewBaseConfig].originalName;
          const alias = viewName === origViewName ? void 0 : joinMeta.alias;
          joinsArray.push(
            sql`${sql.raw(joinMeta.joinType)} join${lateralSql} ${viewSchema ? sql`${sql.identifier(viewSchema)}.` : void 0}${sql.identifier(origViewName)}${alias && sql` ${sql.identifier(alias)}`}${onSql}`
          );
        } else {
          joinsArray.push(
            sql`${sql.raw(joinMeta.joinType)} join${lateralSql} ${table2}${onSql}`
          );
        }
        if (index < joins.length - 1) {
          joinsArray.push(sql` `);
        }
      }
    }
    const joinsSql = sql.join(joinsArray);
    const whereSql = where ? sql` where ${where}` : void 0;
    const havingSql = having ? sql` having ${having}` : void 0;
    const orderBySql = this.buildOrderBy(orderBy);
    const groupBySql = groupBy && groupBy.length > 0 ? sql` group by ${sql.join(groupBy, sql`, `)}` : void 0;
    const limitSql = this.buildLimit(limit);
    const offsetSql = offset ? sql` offset ${offset}` : void 0;
    const useIndexSql = this.buildIndex({ indexes: useIndex, indexFor: "USE" });
    const forceIndexSql = this.buildIndex({
      indexes: forceIndex,
      indexFor: "FORCE"
    });
    const ignoreIndexSql = this.buildIndex({
      indexes: ignoreIndex,
      indexFor: "IGNORE"
    });
    let lockingClausesSql;
    if (lockingClause) {
      const { config, strength } = lockingClause;
      lockingClausesSql = sql` for ${sql.raw(strength)}`;
      if (config.noWait) {
        lockingClausesSql.append(sql` nowait`);
      } else if (config.skipLocked) {
        lockingClausesSql.append(sql` skip locked`);
      }
    }
    const finalQuery = sql`${withSql}select${distinctSql} ${selection} from ${tableSql}${useIndexSql}${forceIndexSql}${ignoreIndexSql}${joinsSql}${whereSql}${groupBySql}${havingSql}${orderBySql}${limitSql}${offsetSql}${lockingClausesSql}`;
    if (setOperators.length > 0) {
      return this.buildSetOperations(finalQuery, setOperators);
    }
    return finalQuery;
  }
  buildSetOperations(leftSelect, setOperators) {
    const [setOperator, ...rest] = setOperators;
    if (!setOperator) {
      throw new Error("Cannot pass undefined values to any set operator");
    }
    if (rest.length === 0) {
      return this.buildSetOperationQuery({ leftSelect, setOperator });
    }
    return this.buildSetOperations(
      this.buildSetOperationQuery({ leftSelect, setOperator }),
      rest
    );
  }
  buildSetOperationQuery({
    leftSelect,
    setOperator: { type, isAll, rightSelect, limit, orderBy, offset }
  }) {
    const leftChunk = sql`(${leftSelect.getSQL()}) `;
    const rightChunk = sql`(${rightSelect.getSQL()})`;
    let orderBySql;
    if (orderBy && orderBy.length > 0) {
      const orderByValues = [];
      for (const orderByUnit of orderBy) {
        if (is(orderByUnit, MySqlColumn)) {
          orderByValues.push(
            sql.identifier(this.casing.getColumnCasing(orderByUnit))
          );
        } else if (is(orderByUnit, SQL)) {
          for (let i = 0; i < orderByUnit.queryChunks.length; i++) {
            const chunk = orderByUnit.queryChunks[i];
            if (is(chunk, MySqlColumn)) {
              orderByUnit.queryChunks[i] = sql.identifier(
                this.casing.getColumnCasing(chunk)
              );
            }
          }
          orderByValues.push(sql`${orderByUnit}`);
        } else {
          orderByValues.push(sql`${orderByUnit}`);
        }
      }
      orderBySql = sql` order by ${sql.join(orderByValues, sql`, `)} `;
    }
    const limitSql = typeof limit === "object" || typeof limit === "number" && limit >= 0 ? sql` limit ${limit}` : void 0;
    const operatorChunk = sql.raw(`${type} ${isAll ? "all " : ""}`);
    const offsetSql = offset ? sql` offset ${offset}` : void 0;
    return sql`${leftChunk}${operatorChunk}${rightChunk}${orderBySql}${limitSql}${offsetSql}`;
  }
  buildInsertQuery({
    table,
    values: valuesOrSelect,
    ignore,
    onConflict,
    select
  }) {
    const valuesSqlList = [];
    const columns = table[Table.Symbol.Columns];
    const colEntries = Object.entries(columns).filter(
      ([_, col]) => !col.shouldDisableInsert()
    );
    const insertOrder = colEntries.map(([, column]) => sql.identifier(this.casing.getColumnCasing(column)));
    const generatedIdsResponse = [];
    if (select) {
      const select2 = valuesOrSelect;
      if (is(select2, SQL)) {
        valuesSqlList.push(select2);
      } else {
        valuesSqlList.push(select2.getSQL());
      }
    } else {
      const values = valuesOrSelect;
      valuesSqlList.push(sql.raw("values "));
      for (const [valueIndex, value] of values.entries()) {
        const generatedIds = {};
        const valueList = [];
        for (const [fieldName, col] of colEntries) {
          const colValue = value[fieldName];
          if (colValue === void 0 || is(colValue, Param) && colValue.value === void 0) {
            if (col.defaultFn !== void 0) {
              const defaultFnResult = col.defaultFn();
              generatedIds[fieldName] = defaultFnResult;
              const defaultValue = is(defaultFnResult, SQL) ? defaultFnResult : sql.param(defaultFnResult, col);
              valueList.push(defaultValue);
            } else if (!col.default && col.onUpdateFn !== void 0) {
              const onUpdateFnResult = col.onUpdateFn();
              const newValue = is(onUpdateFnResult, SQL) ? onUpdateFnResult : sql.param(onUpdateFnResult, col);
              valueList.push(newValue);
            } else {
              valueList.push(sql`default`);
            }
          } else {
            if (col.defaultFn && is(colValue, Param)) {
              generatedIds[fieldName] = colValue.value;
            }
            valueList.push(colValue);
          }
        }
        generatedIdsResponse.push(generatedIds);
        valuesSqlList.push(valueList);
        if (valueIndex < values.length - 1) {
          valuesSqlList.push(sql`, `);
        }
      }
    }
    const valuesSql = sql.join(valuesSqlList);
    const ignoreSql = ignore ? sql` ignore` : void 0;
    const onConflictSql = onConflict ? sql` on duplicate key ${onConflict}` : void 0;
    return {
      sql: sql`insert${ignoreSql} into ${table} ${insertOrder} ${valuesSql}${onConflictSql}`,
      generatedIds: generatedIdsResponse
    };
  }
  sqlToQuery(sql2, invokeSource) {
    return sql2.toQuery({
      casing: this.casing,
      escapeName: this.escapeName,
      escapeParam: this.escapeParam,
      escapeString: this.escapeString,
      invokeSource
    });
  }
  buildRelationalQuery({
    fullSchema,
    schema,
    tableNamesMap,
    table,
    tableConfig,
    queryConfig: config,
    tableAlias,
    nestedQueryRelation,
    joinOn
  }) {
    let selection = [];
    let limit, offset, orderBy, where;
    const joins = [];
    if (config === true) {
      const selectionEntries = Object.entries(tableConfig.columns);
      selection = selectionEntries.map(([key, value]) => ({
        dbKey: value.name,
        tsKey: key,
        field: aliasedTableColumn(value, tableAlias),
        relationTableTsKey: void 0,
        isJson: false,
        selection: []
      }));
    } else {
      const aliasedColumns = Object.fromEntries(
        Object.entries(tableConfig.columns).map(([key, value]) => [
          key,
          aliasedTableColumn(value, tableAlias)
        ])
      );
      if (config.where) {
        const whereSql = typeof config.where === "function" ? config.where(aliasedColumns, getOperators()) : config.where;
        where = whereSql && mapColumnsInSQLToAlias(whereSql, tableAlias);
      }
      const fieldsSelection = [];
      let selectedColumns = [];
      if (config.columns) {
        let isIncludeMode = false;
        for (const [field, value] of Object.entries(config.columns)) {
          if (value === void 0) {
            continue;
          }
          if (field in tableConfig.columns) {
            if (!isIncludeMode && value === true) {
              isIncludeMode = true;
            }
            selectedColumns.push(field);
          }
        }
        if (selectedColumns.length > 0) {
          selectedColumns = isIncludeMode ? selectedColumns.filter((c) => config.columns?.[c] === true) : Object.keys(tableConfig.columns).filter(
            (key) => !selectedColumns.includes(key)
          );
        }
      } else {
        selectedColumns = Object.keys(tableConfig.columns);
      }
      for (const field of selectedColumns) {
        const column = tableConfig.columns[field];
        fieldsSelection.push({ tsKey: field, value: column });
      }
      let selectedRelations = [];
      if (config.with) {
        selectedRelations = Object.entries(config.with).filter(
          (entry) => !!entry[1]
        ).map(([tsKey, queryConfig]) => ({
          tsKey,
          queryConfig,
          relation: tableConfig.relations[tsKey]
        }));
      }
      let extras;
      if (config.extras) {
        extras = typeof config.extras === "function" ? config.extras(aliasedColumns, { sql }) : config.extras;
        for (const [tsKey, value] of Object.entries(extras)) {
          fieldsSelection.push({
            tsKey,
            value: mapColumnsInAliasedSQLToAlias(value, tableAlias)
          });
        }
      }
      for (const { tsKey, value } of fieldsSelection) {
        selection.push({
          dbKey: is(value, SQL.Aliased) ? value.fieldAlias : tableConfig.columns[tsKey].name,
          tsKey,
          field: is(value, Column) ? aliasedTableColumn(value, tableAlias) : value,
          relationTableTsKey: void 0,
          isJson: false,
          selection: []
        });
      }
      let orderByOrig = typeof config.orderBy === "function" ? config.orderBy(aliasedColumns, getOrderByOperators()) : config.orderBy ?? [];
      if (!Array.isArray(orderByOrig)) {
        orderByOrig = [orderByOrig];
      }
      orderBy = orderByOrig.map((orderByValue) => {
        if (is(orderByValue, Column)) {
          return aliasedTableColumn(orderByValue, tableAlias);
        }
        return mapColumnsInSQLToAlias(orderByValue, tableAlias);
      });
      limit = config.limit;
      offset = config.offset;
      for (const {
        tsKey: selectedRelationTsKey,
        queryConfig: selectedRelationConfigValue,
        relation
      } of selectedRelations) {
        const normalizedRelation = normalizeRelation(
          schema,
          tableNamesMap,
          relation
        );
        const relationTableName = getTableUniqueName(relation.referencedTable);
        const relationTableTsName = tableNamesMap[relationTableName];
        const relationTableAlias = `${tableAlias}_${selectedRelationTsKey}`;
        const joinOn2 = and(
          ...normalizedRelation.fields.map(
            (field2, i) => eq(
              aliasedTableColumn(
                normalizedRelation.references[i],
                relationTableAlias
              ),
              aliasedTableColumn(field2, tableAlias)
            )
          )
        );
        const builtRelation = this.buildRelationalQuery({
          fullSchema,
          schema,
          tableNamesMap,
          table: fullSchema[relationTableTsName],
          tableConfig: schema[relationTableTsName],
          queryConfig: is(relation, One) ? selectedRelationConfigValue === true ? { limit: 1 } : { ...selectedRelationConfigValue, limit: 1 } : selectedRelationConfigValue,
          tableAlias: relationTableAlias,
          joinOn: joinOn2,
          nestedQueryRelation: relation
        });
        const field = sql`${sql.identifier(relationTableAlias)}.${sql.identifier("data")}`.as(
          selectedRelationTsKey
        );
        joins.push({
          on: sql`true`,
          table: new Subquery(builtRelation.sql, {}, relationTableAlias),
          alias: relationTableAlias,
          joinType: "left",
          lateral: true
        });
        selection.push({
          dbKey: selectedRelationTsKey,
          tsKey: selectedRelationTsKey,
          field,
          relationTableTsKey: relationTableTsName,
          isJson: true,
          selection: builtRelation.selection
        });
      }
    }
    if (selection.length === 0) {
      throw new DrizzleError({
        message: `No fields selected for table "${tableConfig.tsName}" ("${tableAlias}")`
      });
    }
    let result;
    where = and(joinOn, where);
    if (nestedQueryRelation) {
      let field = sql`json_array(${sql.join(
        selection.map(
          ({ field: field2, tsKey, isJson }) => isJson ? sql`${sql.identifier(`${tableAlias}_${tsKey}`)}.${sql.identifier("data")}` : is(field2, SQL.Aliased) ? field2.sql : field2
        ),
        sql`, `
      )})`;
      if (is(nestedQueryRelation, Many)) {
        field = sql`coalesce(json_arrayagg(${field}), json_array())`;
      }
      const nestedSelection = [
        {
          dbKey: "data",
          tsKey: "data",
          field: field.as("data"),
          isJson: true,
          relationTableTsKey: tableConfig.tsName,
          selection
        }
      ];
      const needsSubquery = limit !== void 0 || offset !== void 0 || (orderBy?.length ?? 0) > 0;
      if (needsSubquery) {
        result = this.buildSelectQuery({
          table: aliasedTable(table, tableAlias),
          fields: {},
          fieldsFlat: [
            {
              path: [],
              field: sql.raw("*")
            },
            ...((orderBy?.length ?? 0) > 0 ? [
              {
                path: [],
                field: sql`row_number() over (order by ${sql.join(orderBy, sql`, `)})`
              }
            ] : [])
          ],
          where,
          limit,
          offset,
          setOperators: []
        });
        where = void 0;
        limit = void 0;
        offset = void 0;
        orderBy = void 0;
      } else {
        result = aliasedTable(table, tableAlias);
      }
      result = this.buildSelectQuery({
        table: is(result, MySqlTable) ? result : new Subquery(result, {}, tableAlias),
        fields: {},
        fieldsFlat: nestedSelection.map(({ field: field2 }) => ({
          path: [],
          field: is(field2, Column) ? aliasedTableColumn(field2, tableAlias) : field2
        })),
        joins,
        where,
        limit,
        offset,
        orderBy,
        setOperators: []
      });
    } else {
      result = this.buildSelectQuery({
        table: aliasedTable(table, tableAlias),
        fields: {},
        fieldsFlat: selection.map(({ field }) => ({
          path: [],
          field: is(field, Column) ? aliasedTableColumn(field, tableAlias) : field
        })),
        joins,
        where,
        limit,
        offset,
        orderBy,
        setOperators: []
      });
    }
    return {
      tableTsKey: tableConfig.tsName,
      sql: result,
      selection
    };
  }
  buildRelationalQueryWithoutLateralSubqueries({
    fullSchema,
    schema,
    tableNamesMap,
    table,
    tableConfig,
    queryConfig: config,
    tableAlias,
    nestedQueryRelation,
    joinOn
  }) {
    let selection = [];
    let limit, offset, orderBy = [], where;
    if (config === true) {
      const selectionEntries = Object.entries(tableConfig.columns);
      selection = selectionEntries.map(([key, value]) => ({
        dbKey: value.name,
        tsKey: key,
        field: aliasedTableColumn(value, tableAlias),
        relationTableTsKey: void 0,
        isJson: false,
        selection: []
      }));
    } else {
      const aliasedColumns = Object.fromEntries(
        Object.entries(tableConfig.columns).map(([key, value]) => [
          key,
          aliasedTableColumn(value, tableAlias)
        ])
      );
      if (config.where) {
        const whereSql = typeof config.where === "function" ? config.where(aliasedColumns, getOperators()) : config.where;
        where = whereSql && mapColumnsInSQLToAlias(whereSql, tableAlias);
      }
      const fieldsSelection = [];
      let selectedColumns = [];
      if (config.columns) {
        let isIncludeMode = false;
        for (const [field, value] of Object.entries(config.columns)) {
          if (value === void 0) {
            continue;
          }
          if (field in tableConfig.columns) {
            if (!isIncludeMode && value === true) {
              isIncludeMode = true;
            }
            selectedColumns.push(field);
          }
        }
        if (selectedColumns.length > 0) {
          selectedColumns = isIncludeMode ? selectedColumns.filter((c) => config.columns?.[c] === true) : Object.keys(tableConfig.columns).filter(
            (key) => !selectedColumns.includes(key)
          );
        }
      } else {
        selectedColumns = Object.keys(tableConfig.columns);
      }
      for (const field of selectedColumns) {
        const column = tableConfig.columns[field];
        fieldsSelection.push({ tsKey: field, value: column });
      }
      let selectedRelations = [];
      if (config.with) {
        selectedRelations = Object.entries(config.with).filter(
          (entry) => !!entry[1]
        ).map(([tsKey, queryConfig]) => ({
          tsKey,
          queryConfig,
          relation: tableConfig.relations[tsKey]
        }));
      }
      let extras;
      if (config.extras) {
        extras = typeof config.extras === "function" ? config.extras(aliasedColumns, { sql }) : config.extras;
        for (const [tsKey, value] of Object.entries(extras)) {
          fieldsSelection.push({
            tsKey,
            value: mapColumnsInAliasedSQLToAlias(value, tableAlias)
          });
        }
      }
      for (const { tsKey, value } of fieldsSelection) {
        selection.push({
          dbKey: is(value, SQL.Aliased) ? value.fieldAlias : tableConfig.columns[tsKey].name,
          tsKey,
          field: is(value, Column) ? aliasedTableColumn(value, tableAlias) : value,
          relationTableTsKey: void 0,
          isJson: false,
          selection: []
        });
      }
      let orderByOrig = typeof config.orderBy === "function" ? config.orderBy(aliasedColumns, getOrderByOperators()) : config.orderBy ?? [];
      if (!Array.isArray(orderByOrig)) {
        orderByOrig = [orderByOrig];
      }
      orderBy = orderByOrig.map((orderByValue) => {
        if (is(orderByValue, Column)) {
          return aliasedTableColumn(orderByValue, tableAlias);
        }
        return mapColumnsInSQLToAlias(orderByValue, tableAlias);
      });
      limit = config.limit;
      offset = config.offset;
      for (const {
        tsKey: selectedRelationTsKey,
        queryConfig: selectedRelationConfigValue,
        relation
      } of selectedRelations) {
        const normalizedRelation = normalizeRelation(
          schema,
          tableNamesMap,
          relation
        );
        const relationTableName = getTableUniqueName(relation.referencedTable);
        const relationTableTsName = tableNamesMap[relationTableName];
        const relationTableAlias = `${tableAlias}_${selectedRelationTsKey}`;
        const joinOn2 = and(
          ...normalizedRelation.fields.map(
            (field2, i) => eq(
              aliasedTableColumn(
                normalizedRelation.references[i],
                relationTableAlias
              ),
              aliasedTableColumn(field2, tableAlias)
            )
          )
        );
        const builtRelation = this.buildRelationalQueryWithoutLateralSubqueries(
          {
            fullSchema,
            schema,
            tableNamesMap,
            table: fullSchema[relationTableTsName],
            tableConfig: schema[relationTableTsName],
            queryConfig: is(relation, One) ? selectedRelationConfigValue === true ? { limit: 1 } : { ...selectedRelationConfigValue, limit: 1 } : selectedRelationConfigValue,
            tableAlias: relationTableAlias,
            joinOn: joinOn2,
            nestedQueryRelation: relation
          }
        );
        let fieldSql = sql`(${builtRelation.sql})`;
        if (is(relation, Many)) {
          fieldSql = sql`coalesce(${fieldSql}, json_array())`;
        }
        const field = fieldSql.as(selectedRelationTsKey);
        selection.push({
          dbKey: selectedRelationTsKey,
          tsKey: selectedRelationTsKey,
          field,
          relationTableTsKey: relationTableTsName,
          isJson: true,
          selection: builtRelation.selection
        });
      }
    }
    if (selection.length === 0) {
      throw new DrizzleError({
        message: `No fields selected for table "${tableConfig.tsName}" ("${tableAlias}"). You need to have at least one item in "columns", "with" or "extras". If you need to select all columns, omit the "columns" key or set it to undefined.`
      });
    }
    let result;
    where = and(joinOn, where);
    if (nestedQueryRelation) {
      let field = sql`json_array(${sql.join(
        selection.map(
          ({ field: field2 }) => is(field2, MySqlColumn) ? sql.identifier(this.casing.getColumnCasing(field2)) : is(field2, SQL.Aliased) ? field2.sql : field2
        ),
        sql`, `
      )})`;
      if (is(nestedQueryRelation, Many)) {
        field = sql`json_arrayagg(${field})`;
      }
      const nestedSelection = [
        {
          dbKey: "data",
          tsKey: "data",
          field,
          isJson: true,
          relationTableTsKey: tableConfig.tsName,
          selection
        }
      ];
      const needsSubquery = limit !== void 0 || offset !== void 0 || orderBy.length > 0;
      if (needsSubquery) {
        result = this.buildSelectQuery({
          table: aliasedTable(table, tableAlias),
          fields: {},
          fieldsFlat: [
            {
              path: [],
              field: sql.raw("*")
            },
            ...(orderBy.length > 0 ? [
              {
                path: [],
                field: sql`row_number() over (order by ${sql.join(orderBy, sql`, `)})`
              }
            ] : [])
          ],
          where,
          limit,
          offset,
          setOperators: []
        });
        where = void 0;
        limit = void 0;
        offset = void 0;
        orderBy = void 0;
      } else {
        result = aliasedTable(table, tableAlias);
      }
      result = this.buildSelectQuery({
        table: is(result, MySqlTable) ? result : new Subquery(result, {}, tableAlias),
        fields: {},
        fieldsFlat: nestedSelection.map(({ field: field2 }) => ({
          path: [],
          field: is(field2, Column) ? aliasedTableColumn(field2, tableAlias) : field2
        })),
        where,
        limit,
        offset,
        orderBy,
        setOperators: []
      });
    } else {
      result = this.buildSelectQuery({
        table: aliasedTable(table, tableAlias),
        fields: {},
        fieldsFlat: selection.map(({ field }) => ({
          path: [],
          field: is(field, Column) ? aliasedTableColumn(field, tableAlias) : field
        })),
        where,
        limit,
        offset,
        orderBy,
        setOperators: []
      });
    }
    return {
      tableTsKey: tableConfig.tsName,
      sql: result,
      selection
    };
  }
}
export {
  MySqlDialect
};
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