<template>
    <DocSectionText v-bind="$attrs">
        <p>
            CascadeSelect is used as a controlled component with <i>v-model</i> property along with an <i>options</i> collection. To define the label of a group <i>optionGroupLabel</i> property is needed and also <i>optionGroupChildren</i> is
            required to define the property that refers to the children of a group. Note that order of the <i>optionGroupChildren</i> matters as it should correspond to the data hierarchy.
        </p>
    </DocSectionText>
    <div class="card flex justify-content-center">
        <CascadeSelect v-model="selectedCity" :options="countries" optionLabel="cname" optionGroupLabel="name" :optionGroupChildren="['states', 'cities']" style="min-width: 14rem" placeholder="Select a City">
            <template #option="slotProps">
                <div class="flex align-items-center">
                    <img v-if="slotProps.option.states" :alt="slotProps.option.name" src="https://primefaces.org/cdn/primevue/images/flag/flag_placeholder.png" :class="`flag flag-${slotProps.option.code.toLowerCase()} mr-2`" style="width: 18px" />
                    <i v-if="slotProps.option.cities" class="pi pi-compass mr-2"></i>
                    <i v-if="slotProps.option.cname" class="pi pi-map-marker mr-2"></i>
                    <span>{{ slotProps.option.cname || slotProps.option.name }}</span>
                </div>
            </template>
        </CascadeSelect>
    </div>
    <DocSectionCode :code="code" />
</template>

<script>
export default {
    data() {
        return {
            selectedCity: null,
            countries: [
                {
                    name: 'Australia',
                    code: 'AU',
                    states: [
                        {
                            name: 'New South Wales',
                            cities: [
                                { cname: 'Sydney', code: 'A-SY' },
                                { cname: 'Newcastle', code: 'A-NE' },
                                { cname: 'Wollongong', code: 'A-WO' }
                            ]
                        },
                        {
                            name: 'Queensland',
                            cities: [
                                { cname: 'Brisbane', code: 'A-BR' },
                                { cname: 'Townsville', code: 'A-TO' }
                            ]
                        }
                    ]
                },
                {
                    name: 'Canada',
                    code: 'CA',
                    states: [
                        {
                            name: 'Quebec',
                            cities: [
                                { cname: 'Montreal', code: 'C-MO' },
                                { cname: 'Quebec City', code: 'C-QU' }
                            ]
                        },
                        {
                            name: 'Ontario',
                            cities: [
                                { cname: 'Ottawa', code: 'C-OT' },
                                { cname: 'Toronto', code: 'C-TO' }
                            ]
                        }
                    ]
                },
                {
                    name: 'United States',
                    code: 'US',
                    states: [
                        {
                            name: 'California',
                            cities: [
                                { cname: 'Los Angeles', code: 'US-LA' },
                                { cname: 'San Diego', code: 'US-SD' },
                                { cname: 'San Francisco', code: 'US-SF' }
                            ]
                        },
                        {
                            name: 'Florida',
                            cities: [
                                { cname: 'Jacksonville', code: 'US-JA' },
                                { cname: 'Miami', code: 'US-MI' },
                                { cname: 'Tampa', code: 'US-TA' },
                                { cname: 'Orlando', code: 'US-OR' }
                            ]
                        },
                        {
                            name: 'Texas',
                            cities: [
                                { cname: 'Austin', code: 'US-AU' },
                                { cname: 'Dallas', code: 'US-DA' },
                                { cname: 'Houston', code: 'US-HO' }
                            ]
                        }
                    ]
                }
            ],
            code: {
                basic: `
<CascadeSelect v-model="selectedCity" :options="countries" optionLabel="cname" optionGroupLabel="name"
    :optionGroupChildren="['states', 'cities']" style="min-width: 14rem" placeholder="Select a City">
    <template #option="slotProps">
        <div class="flex align-items-center">
            <img v-if="slotProps.option.states" :alt="slotProps.option.name" src="https://primefaces.org/cdn/primevue/images/flag/flag_placeholder.png" :class="\`flag flag-\${slotProps.option.code.toLowerCase()} mr-2\`" style="width: 18px"  />
            <i v-if="slotProps.option.cities" class="pi pi-compass mr-2"></i>
            <i v-if="slotProps.option.cname" class="pi pi-map-marker mr-2"></i>
            <span>{{ slotProps.option.cname || slotProps.option.name }}</span>
        </div>
    </template>
</CascadeSelect>`,
                options: `
<template>
    <div class="card flex justify-content-center">
        <CascadeSelect v-model="selectedCity" :options="countries" optionLabel="cname" optionGroupLabel="name"
            :optionGroupChildren="['states', 'cities']" style="min-width: 14rem" placeholder="Select a City">
            <template #option="slotProps">
                <div class="flex align-items-center">
                    <img v-if="slotProps.option.states" :alt="slotProps.option.name" src="https://primefaces.org/cdn/primevue/images/flag/flag_placeholder.png" :class="\`flag flag-\${slotProps.option.code.toLowerCase()} mr-2\`" style="width: 18px"  />
                    <i v-if="slotProps.option.cities" class="pi pi-compass mr-2"></i>
                    <i v-if="slotProps.option.cname" class="pi pi-map-marker mr-2"></i>
                    <span>{{ slotProps.option.cname || slotProps.option.name }}</span>
                </div>
            </template>
        </CascadeSelect>
    </div>
</template>

<script>
export default {
    data() {
        return {
            selectedCity: null,
            countries: [
                {
                    name: 'Australia',
                    code: 'AU',
                    states: [
                        {
                            name: 'New South Wales',
                            cities: [
                                { cname: 'Sydney', code: 'A-SY' },
                                { cname: 'Newcastle', code: 'A-NE' },
                                { cname: 'Wollongong', code: 'A-WO' }
                            ]
                        },
                        {
                            name: 'Queensland',
                            cities: [
                                { cname: 'Brisbane', code: 'A-BR' },
                                { cname: 'Townsville', code: 'A-TO' }
                            ]
                        }
                    ]
                },
                {
                    name: 'Canada',
                    code: 'CA',
                    states: [
                        {
                            name: 'Quebec',
                            cities: [
                                { cname: 'Montreal', code: 'C-MO' },
                                { cname: 'Quebec City', code: 'C-QU' }
                            ]
                        },
                        {
                            name: 'Ontario',
                            cities: [
                                { cname: 'Ottawa', code: 'C-OT' },
                                { cname: 'Toronto', code: 'C-TO' }
                            ]
                        }
                    ]
                },
                {
                    name: 'United States',
                    code: 'US',
                    states: [
                        {
                            name: 'California',
                            cities: [
                                { cname: 'Los Angeles', code: 'US-LA' },
                                { cname: 'San Diego', code: 'US-SD' },
                                { cname: 'San Francisco', code: 'US-SF' }
                            ]
                        },
                        {
                            name: 'Florida',
                            cities: [
                                { cname: 'Jacksonville', code: 'US-JA' },
                                { cname: 'Miami', code: 'US-MI' },
                                { cname: 'Tampa', code: 'US-TA' },
                                { cname: 'Orlando', code: 'US-OR' }
                            ]
                        },
                        {
                            name: 'Texas',
                            cities: [
                                { cname: 'Austin', code: 'US-AU' },
                                { cname: 'Dallas', code: 'US-DA' },
                                { cname: 'Houston', code: 'US-HO' }
                            ]
                        }
                    ]
                }
            ]
        };
    }
};
<\/script>`,
                composition: `
<template>
    <div class="card flex justify-content-center">
        <CascadeSelect v-model="selectedCity" :options="countries" optionLabel="cname" optionGroupLabel="name"
            :optionGroupChildren="['states', 'cities']" style="min-width: 14rem" placeholder="Select a City">
            <template #option="slotProps">
                <div class="flex align-items-center">
                    <img v-if="slotProps.option.states" :alt="slotProps.option.name" src="https://primefaces.org/cdn/primevue/images/flag/flag_placeholder.png" :class="\`flag flag-\${slotProps.option.code.toLowerCase()} mr-2\`" style="width: 18px"  />
                    <i v-if="slotProps.option.cities" class="pi pi-compass mr-2"></i>
                    <i v-if="slotProps.option.cname" class="pi pi-map-marker mr-2"></i>
                    <span>{{ slotProps.option.cname || slotProps.option.name }}</span>
                </div>
            </template>
        </CascadeSelect>
    </div>
</template>

<script setup>
import { ref } from "vue";

const selectedCity = ref();
const countries = ref([
    {
        name: 'Australia',
        code: 'AU',
        states: [
            {
                name: 'New South Wales',
                cities: [
                    { cname: 'Sydney', code: 'A-SY' },
                    { cname: 'Newcastle', code: 'A-NE' },
                    { cname: 'Wollongong', code: 'A-WO' }
                ]
            },
            {
                name: 'Queensland',
                cities: [
                    { cname: 'Brisbane', code: 'A-BR' },
                    { cname: 'Townsville', code: 'A-TO' }
                ]
            }
        ]
    },
    {
        name: 'Canada',
        code: 'CA',
        states: [
            {
                name: 'Quebec',
                cities: [
                    { cname: 'Montreal', code: 'C-MO' },
                    { cname: 'Quebec City', code: 'C-QU' }
                ]
            },
            {
                name: 'Ontario',
                cities: [
                    { cname: 'Ottawa', code: 'C-OT' },
                    { cname: 'Toronto', code: 'C-TO' }
                ]
            }
        ]
    },
    {
        name: 'United States',
        code: 'US',
        states: [
            {
                name: 'California',
                cities: [
                    { cname: 'Los Angeles', code: 'US-LA' },
                    { cname: 'San Diego', code: 'US-SD' },
                    { cname: 'San Francisco', code: 'US-SF' }
                ]
            },
            {
                name: 'Florida',
                cities: [
                    { cname: 'Jacksonville', code: 'US-JA' },
                    { cname: 'Miami', code: 'US-MI' },
                    { cname: 'Tampa', code: 'US-TA' },
                    { cname: 'Orlando', code: 'US-OR' }
                ]
            },
            {
                name: 'Texas',
                cities: [
                    { cname: 'Austin', code: 'US-AU' },
                    { cname: 'Dallas', code: 'US-DA' },
                    { cname: 'Houston', code: 'US-HO' }
                ]
            }
        ]
    }
]);
<\/script>`
            }
        };
    }
};
</script>
