'use strict';

const { describe, it } = require('node:test');
const assert = require('node:assert/strict');
const {
  isEnvChannelEnabled,
  isDbChannelEnabled,
  isChannelEnabled,
  toPublicMessaging,
  parseIncomingMessaging
} = require('./messagingChannels');

describe('isEnvChannelEnabled', () => {
  it('requires SMS_ENABLED to be truthy', () => {
    assert.equal(isEnvChannelEnabled('sms', { SMS_ENABLED: false }), false);
    assert.equal(isEnvChannelEnabled('sms', { SMS_ENABLED: 'false' }), false);
    assert.equal(isEnvChannelEnabled('sms', { SMS_ENABLED: true }), true);
    assert.equal(isEnvChannelEnabled('sms', { SMS_ENABLED: 'true' }), true);
  });

  it('treats missing env flags as disabled', () => {
    assert.equal(isEnvChannelEnabled('email', {}), false);
    assert.equal(isEnvChannelEnabled('bot', {}), false);
  });
});

describe('isDbChannelEnabled', () => {
  it('defaults to enabled when the setting is missing', () => {
    assert.equal(isDbChannelEnabled('sms', {}), true);
    assert.equal(isDbChannelEnabled('email', null), true);
    assert.equal(isDbChannelEnabled('bot', { botEnabled: undefined }), true);
  });

  it('honors explicit dashboard flags', () => {
    assert.equal(isDbChannelEnabled('sms', { smsEnabled: false }), false);
    assert.equal(isDbChannelEnabled('email', { emailEnabled: '0' }), false);
    assert.equal(isDbChannelEnabled('bot', { botEnabled: true }), true);
  });
});

describe('isChannelEnabled', () => {
  it('requires both env and dashboard settings to be enabled', () => {
    const envOn = { SMS_ENABLED: true, EMAIL_ENABLED: true, BOT_ENABLED: true };
    const dbOn = { smsEnabled: true, emailEnabled: true, botEnabled: true };

    assert.equal(isChannelEnabled('sms', { env: envOn, db: dbOn }), true);
    assert.equal(isChannelEnabled('sms', {
      env: { SMS_ENABLED: false },
      db: { smsEnabled: true }
    }), false);
    assert.equal(isChannelEnabled('sms', {
      env: { SMS_ENABLED: true },
      db: { smsEnabled: false }
    }), false);
    assert.equal(isChannelEnabled('email', {
      env: { EMAIL_ENABLED: true },
      db: { emailEnabled: false }
    }), false);
    assert.equal(isChannelEnabled('bot', {
      env: { BOT_ENABLED: true },
      db: { botEnabled: true }
    }), true);
  });
});

describe('toPublicMessaging', () => {
  it('returns dashboard flags plus an env snapshot', () => {
    assert.deepEqual(toPublicMessaging(
      { smsEnabled: false, emailEnabled: true },
      { SMS_ENABLED: true, EMAIL_ENABLED: false, BOT_ENABLED: '1' }
    ), {
      smsEnabled: false,
      emailEnabled: true,
      botEnabled: true,
      env: {
        smsEnabled: true,
        emailEnabled: false,
        botEnabled: true
      }
    });
  });
});

describe('parseIncomingMessaging', () => {
  it('reads nested messaging flags and ignores unspecified channels', () => {
    assert.deepEqual(parseIncomingMessaging({
      messaging: { smsEnabled: false, emailEnabled: 'true' }
    }), {
      smsEnabled: false,
      emailEnabled: true
    });
  });

  it('returns null when no messaging flags are present', () => {
    assert.equal(parseIncomingMessaging({ smsTemplates: {} }), null);
    assert.equal(parseIncomingMessaging({}), null);
  });
});