import type { UniqueID } from "@repo/rdx-ddd";
import { Result } from "@repo/rdx-utils";
import { QueryTypes, type Sequelize, type Transaction } from "sequelize";

import type { IMailboxRepository, MailboxContext } from "../../application/mailbox.repository";
import { AccessDefinitionSchema } from "../../domain/access/access-definition";
import { Mailbox } from "../../domain/mailbox.aggregate";
import type { MailboxUse } from "../../domain/mailbox-use.aggregate";
import { MailboxError } from "../../domain/mailbox-values";

import {
  MailboxPersistenceMapper,
  type MailboxRevisionRow,
  type MailboxRow,
  type MailboxUseRow,
  mailboxIdentity,
} from "./mailbox-persistence.mapper";

export class SequelizeMailboxRepository implements IMailboxRepository {
  private readonly mapper = new MailboxPersistenceMapper();
  constructor(private readonly database: Sequelize) {}
  async load(
    companyId: UniqueID,
    transaction: Transaction,
    write: boolean
  ): Promise<Result<MailboxContext, MailboxError>> {
    const replacements = { companyId: companyId.toPrimitive() };
    const companies = await this.database.query<{ id: string }>(
      `SELECT id FROM companies WHERE id=:companyId${write ? " FOR UPDATE" : ""}`,
      { replacements, transaction, type: QueryTypes.SELECT }
    );
    if (!companies.length) {
      return Result.fail(new MailboxError("COMPANY_NOT_FOUND"));
    }
    const rows = await this.database.query<MailboxRow>(
      "SELECT * FROM mailboxes WHERE companyId=:companyId",
      { replacements, transaction, type: QueryTypes.SELECT }
    );
    const revisions = await this.database.query<MailboxRevisionRow>(
      "SELECT r.* FROM mailbox_revisions r JOIN mailboxes m ON m.id=r.itemId WHERE m.companyId=:companyId",
      { replacements, transaction, type: QueryTypes.SELECT }
    );
    const useRows = await this.database.query<MailboxUseRow>(
      "SELECT * FROM mailbox_uses WHERE companyId=:companyId",
      { replacements, transaction, type: QueryTypes.SELECT }
    );
    const useRevisions = await this.database.query<MailboxRevisionRow>(
      "SELECT r.* FROM mailbox_use_revisions r JOIN mailbox_uses m ON m.id=r.itemId WHERE m.companyId=:companyId",
      { replacements, transaction, type: QueryTypes.SELECT }
    );
    const people = await this.database.query<{ id: string; active: boolean }>(
      "SELECT id,active FROM company_contacts WHERE companyId=:companyId",
      { replacements, transaction, type: QueryTypes.SELECT }
    );
    const items = await this.database.query<{ id: string; values: unknown }>(
      "SELECT i.id,i.values FROM access_items i JOIN access_workspaces w ON w.id=i.workspaceId WHERE w.companyId=:companyId OR w.companyId IS NULL",
      { replacements, transaction, type: QueryTypes.SELECT }
    );
    const actors = await this.database.query<{ id: string; name: string }>(
      "SELECT id,name FROM users",
      { transaction, type: QueryTypes.SELECT }
    );
    const context: MailboxContext = {
      mailboxes: rows.map((row) =>
        this.mapper.toDomain(
          row,
          revisions.filter((revision) => revision.itemId === row.id)
        )
      ),
      uses: useRows.map((row) =>
        this.mapper.toUseDomain(
          row,
          useRevisions.filter((revision) => revision.itemId === row.id)
        )
      ),
      people: people.map((person) => ({
        id: mailboxIdentity(person.id),
        active: Boolean(person.active),
      })),
      items: items.map((item) => ({
        id: mailboxIdentity(item.id),
        values: AccessDefinitionSchema.parse(
          typeof item.values === "string" ? JSON.parse(item.values) : item.values
        ),
      })),
      actors: new Map(actors.map((actor) => [actor.id, actor.name])),
      today: new Date().toISOString().slice(0, 10),
    };
    if (
      context.mailboxes.some((mailbox) =>
        mailbox.history.some((revision) => {
          const account = revision.values.accountId.getOrUndefined();
          return (
            account &&
            !context.items.some((item) => item.id.equals(account) && item.values.kind === "account")
          );
        })
      ) ||
      context.uses.some(
        (use) =>
          !(
            context.mailboxes.some((item) => item.id.equals(use.values.mailboxId)) &&
            context.people.some((item) => item.id.equals(use.values.personId))
          )
      )
    ) {
      throw new Error("Ámbito de buzón persistido inconsistente.");
    }
    return Result.ok(context);
  }
  private async saveRevisions(
    item: Mailbox | MailboxUse,
    previous: Mailbox | MailboxUse | undefined,
    transaction: Transaction
  ) {
    const row = this.mapper.toPersistence(item);
    const existing = new Set(previous?.history.map((revision) => revision.id.toPrimitive()));
    for (const revision of row.revisions.filter((revision) => !existing.has(revision.id))) {
      const table = item instanceof Mailbox ? "mailbox_revisions" : "mailbox_use_revisions";
      await this.database.query(
        `INSERT INTO ${table} (id,itemId,position,actorId,recordedAt,\`values\`) VALUES (:id,:itemId,:position,:actorId,:recordedAt,:values)`,
        { replacements: revision, transaction }
      );
    }
  }
  get(companyId: UniqueID) {
    return this.database.transaction((transaction) => this.load(companyId, transaction, false));
  }
  save(companyId: UniqueID, action: Parameters<IMailboxRepository["save"]>[1]) {
    return this.database.transaction(async (transaction) => {
      const loaded = await this.load(companyId, transaction, true);
      if (!loaded.isSuccess) {
        return loaded;
      }
      const candidate = action(loaded.data);
      if (!candidate.isSuccess) {
        return candidate;
      }
      const item = candidate.data;
      const previous =
        item instanceof Mailbox
          ? loaded.data.mailboxes.find((old) => old.id.equals(item.id))
          : loaded.data.uses.find((old) => old.id.equals(item.id));
      if (previous !== item) {
        const row = this.mapper.toPersistence(item);
        if (item instanceof Mailbox) {
          const values = item.values.toPrimitive();
          await this.database.query(
            "INSERT INTO mailboxes (id,companyId,accountId,addressKey,`values`) VALUES (:id,:companyId,:accountId,:addressKey,:values) ON DUPLICATE KEY UPDATE accountId=VALUES(accountId),addressKey=VALUES(addressKey),`values`=VALUES(`values`)",
            {
              replacements: {
                id: row.id,
                companyId: row.companyId,
                values: row.values,
                accountId: values.accountId,
                addressKey: `${row.companyId}:${values.address}`,
              },
              transaction,
            }
          );
        } else {
          const values = item.values.toPrimitive();
          await this.database.query(
            "INSERT INTO mailbox_uses (id,companyId,mailboxId,personId,`values`) VALUES (:id,:companyId,:mailboxId,:personId,:values) ON DUPLICATE KEY UPDATE `values`=VALUES(`values`)",
            {
              replacements: {
                id: row.id,
                companyId: row.companyId,
                values: row.values,
                mailboxId: values.mailboxId,
                personId: values.personId,
              },
              transaction,
            }
          );
        }
        await this.saveRevisions(item, previous, transaction);
      }
      return Result.ok({
        item,
        context: {
          ...loaded.data,
          mailboxes:
            item instanceof Mailbox
              ? [...loaded.data.mailboxes.filter((old) => !old.id.equals(item.id)), item]
              : loaded.data.mailboxes,
          uses:
            item instanceof Mailbox
              ? loaded.data.uses
              : [...loaded.data.uses.filter((old) => !old.id.equals(item.id)), item],
        },
      });
    });
  }
}