/// <reference types="cypress" />

interface MailpitAddress {
  Address: string;
  Name: string;
}

interface MailpitMessageSummary {
  ID: string;
  From: MailpitAddress;
  To: MailpitAddress[];
  Subject: string;
  Snippet: string;
  Created: string;
}

interface MailpitMessages {
  total: number;
  unread: number;
  count: number;
  messages: MailpitMessageSummary[];
}

interface MailpitMessageBody {
  ID: string;
  Text: string;
  HTML: string;
}

interface SignupArgs {
  email: string;
  displayName: string;
}

interface ConfirmArgs {
  token: string;
  password: string;
}

interface LoginArgs {
  email: string;
  password: string;
}

interface SeedConfirmedUserArgs {
  email: string;
  displayName: string;
  password: string;
}

type SeedAdminArgs = SeedConfirmedUserArgs;

interface SeedPostArgs {
  email: string;
  password: string;
  title: string;
  body: string;
}

interface CreatedPost {
  id: number;
  userId: number;
  authorDisplayName: string;
  title: string;
  body: string;
  createdAt: string;
  featureSlot: number | null;
}

interface SeedFeaturedPostArgs {
  adminEmail: string;
  adminPassword: string;
  postId: number;
  slot: number;
}

declare global {
  // eslint-disable-next-line @typescript-eslint/no-namespace
  namespace Cypress {
    interface Chainable {
      resetDb(): Chainable<null>;
      seedDb(): Chainable<null>;
      promoteAdmin(email: string): Chainable<null>;
      clearMail(): Chainable<null>;
      getMail(): Chainable<MailpitMessages>;
      getMailBody(id: string): Chainable<MailpitMessageBody>;
      signupViaApi(args: SignupArgs): Chainable<void>;
      fetchLatestConfirmToken(email: string): Chainable<string>;
      confirmViaApi(args: ConfirmArgs): Chainable<void>;
      loginViaApi(args: LoginArgs): Chainable<void>;
      logoutViaApi(): Chainable<void>;
      seedConfirmedUser(args: SeedConfirmedUserArgs): Chainable<void>;
      seedAdmin(args: SeedAdminArgs): Chainable<void>;
      seedPostAs(args: SeedPostArgs): Chainable<CreatedPost>;
      seedFeaturedPost(args: SeedFeaturedPostArgs): Chainable<void>;
    }
  }
}

const apiBase = "/api";

Cypress.Commands.add("resetDb", function () {
  return cy.task<null>("db:reset");
});

Cypress.Commands.add("seedDb", function () {
  return cy.task<null>("db:seed");
});

Cypress.Commands.add("promoteAdmin", function (email: string) {
  return cy.task<null>("db:promote", email);
});

Cypress.Commands.add("clearMail", function () {
  return cy.task<null>("mailpit:clear");
});

Cypress.Commands.add("getMail", function () {
  return cy.task<MailpitMessages>("mailpit:messages");
});

Cypress.Commands.add("getMailBody", function (id: string) {
  return cy.task<MailpitMessageBody>("mailpit:message", id);
});

Cypress.Commands.add("signupViaApi", function (args: SignupArgs) {
  cy.request({
    method: "POST",
    url: `${apiBase}/signup`,
    body: { email: args.email, displayName: args.displayName },
  }).then(function (response) {
    expect(response.status).to.equal(201);
  });
});

Cypress.Commands.add("fetchLatestConfirmToken", function (email: string) {
  return cy.getMail().then(function (inbox) {
    const match = inbox.messages.find(function (message) {
      return message.To.some(function (to) {
        return to.Address.toLowerCase() === email.toLowerCase();
      });
    });
    if (!match) {
      throw new Error(`no mailpit message for ${email}`);
    }
    return cy.getMailBody(match.ID).then(function (body) {
      const text = body.Text || body.HTML;
      const tokenMatch = text.match(/token=([a-f0-9]+)/);
      if (!tokenMatch) {
        throw new Error("confirmation token not found in mail body");
      }
      return tokenMatch[1];
    });
  });
});

Cypress.Commands.add("confirmViaApi", function (args: ConfirmArgs) {
  cy.request({
    method: "POST",
    url: `${apiBase}/confirm-email`,
    body: { token: args.token, password: args.password },
  }).then(function (response) {
    expect(response.status).to.equal(200);
  });
});

Cypress.Commands.add("loginViaApi", function (args: LoginArgs) {
  cy.request({
    method: "POST",
    url: `${apiBase}/login`,
    body: { email: args.email, password: args.password },
  }).then(function (response) {
    expect(response.status).to.equal(200);
  });
});

Cypress.Commands.add("logoutViaApi", function () {
  cy.request({
    method: "POST",
    url: `${apiBase}/logout`,
    failOnStatusCode: false,
  });
});

Cypress.Commands.add(
  "seedConfirmedUser",
  function (args: SeedConfirmedUserArgs) {
    cy.signupViaApi({ email: args.email, displayName: args.displayName });
    cy.fetchLatestConfirmToken(args.email).then(function (token) {
      cy.confirmViaApi({ token, password: args.password });
    });
    cy.logoutViaApi();
  },
);

Cypress.Commands.add("seedAdmin", function (args: SeedAdminArgs) {
  cy.seedConfirmedUser({
    email: args.email,
    displayName: args.displayName,
    password: args.password,
  });
  cy.promoteAdmin(args.email);
});

Cypress.Commands.add("seedPostAs", function (args: SeedPostArgs) {
  cy.loginViaApi({ email: args.email, password: args.password });
  return cy
    .request({
      method: "POST",
      url: `${apiBase}/posts`,
      body: { title: args.title, body: args.body },
    })
    .then(function (response) {
      expect(response.status).to.equal(201);
      cy.logoutViaApi();
      return response.body.post as CreatedPost;
    });
});

Cypress.Commands.add(
  "seedFeaturedPost",
  function (args: SeedFeaturedPostArgs) {
    cy.loginViaApi({ email: args.adminEmail, password: args.adminPassword });
    cy.request({
      method: "POST",
      url: `${apiBase}/admin/posts/feature`,
      body: { postId: args.postId, slot: args.slot },
    }).then(function (response) {
      expect(response.status).to.equal(200);
    });
    cy.logoutViaApi();
  },
);

export {};