/*
 * Copyright 2016-present the IoT DC3 original author or authors.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

import {mount} from '@vue/test-utils';
import {describe, expect, it} from 'vitest';

import i18n from '@/config/i18n';
import EnableFlagSegmented from '@/components/segmented/EnableFlagSegmented.vue';

// The segmented stub mirrors el-segmented's emit shape so we can drive
// the option click via a real DOM event instead of poking wrapper.vm.
const ElSegmentedStub = {
  name: 'ElSegmented',
  props: ['modelValue', 'options', 'size'],
  emits: ['update:modelValue'],
  template: `
    <div class="el-segmented-stub" :data-size="size">
      <button
        v-for="option in options"
        :key="String(option.value)"
        type="button"
        :data-value="option.value"
        @click="$emit('update:modelValue', option.value)"
      >
        {{ option.label }}
      </button>
    </div>
  `,
};

function mountSegmented(props: Record<string, unknown> = {}) {
  return mount(EnableFlagSegmented, {
    props,
    global: {
      plugins: [i18n],
      stubs: {ElSegmented: ElSegmentedStub},
    },
  });
}

describe('EnableFlagSegmented', () => {
  it('uses string-coded ENABLE/DISABLE options by default', () => {
    const wrapper = mountSegmented({modelValue: 'ENABLE'});
    const buttons = wrapper.findAll('button');
    expect(buttons).toHaveLength(2);
    expect(buttons[0].attributes('data-value')).toBe('ENABLE');
    expect(buttons[1].attributes('data-value')).toBe('DISABLE');
  });

  it('switches to numeric 0/1 options when valueType=number', () => {
    const wrapper = mountSegmented({modelValue: 0, valueType: 'number'});
    const buttons = wrapper.findAll('button');
    expect(buttons[0].attributes('data-value')).toBe('0');
    expect(buttons[1].attributes('data-value')).toBe('1');
  });

  it('prepends an all option when includeAll=true', () => {
    const wrapper = mountSegmented({modelValue: '', includeAll: true});
    const buttons = wrapper.findAll('button');
    expect(buttons).toHaveLength(3);
    expect(buttons[0].attributes('data-value')).toBe('');
    expect(buttons[1].attributes('data-value')).toBe('ENABLE');
    expect(buttons[2].attributes('data-value')).toBe('DISABLE');
  });

  it('emits the chosen flag string via update:modelValue', async () => {
    const wrapper = mountSegmented({modelValue: 'ENABLE'});
    await wrapper.findAll('button')[1].trigger('click');
    expect(wrapper.emitted('update:modelValue')).toEqual([['DISABLE']]);
  });

  it('emits 1 (numeric) when DISABLE is chosen with valueType=number', async () => {
    const wrapper = mountSegmented({modelValue: 0, valueType: 'number'});
    await wrapper.findAll('button')[1].trigger('click');
    expect(wrapper.emitted('update:modelValue')).toEqual([[1]]);
  });

  it('keeps the empty all value when includeAll is used with numeric mode', async () => {
    const wrapper = mountSegmented({modelValue: '', includeAll: true, valueType: 'number'});
    await wrapper.findAll('button')[0].trigger('click');
    expect(wrapper.emitted('update:modelValue')).toEqual([['']]);
  });
});