<template>
    <div>
        <ul class="flex space-x-2 rtl:space-x-reverse">
            <li>
                <a href="javascript:;" class="text-primary hover:underline">Konten</a>
            </li>
            <li class="before:mr-2 before:content-['/'] rtl:before:ml-2">
                <NuxtLink to="/content/contents/list" class="text-primary hover:underline">Daftar Konten</NuxtLink>
            </li>
            <li class="before:mr-2 before:content-['/'] rtl:before:ml-2">
                <span>Tambah Konten</span>
            </li>
        </ul>

        <div class="grid grid-cols-1 gap-6 pt-5">
            <div class="panel">
                <div class="mb-5 flex items-center justify-between">
                    <h5 class="text-lg font-semibold dark:text-white-light">Tambah Konten</h5>
                    <NuxtLink to="/content/contents/list" class="dark:text-white-light btn btn-dark !py-1">
                        <icon-arrow-backward class="me-1" />
                        Daftar
                    </NuxtLink>
                </div>
                <div class="mb-5">
                    <form class="space-y-5" @submit.prevent="submitForm()">
                        <div class="grid grid-cols-1 gap-4 md:grid-cols-4 gap-2">
                            <div :class="{ 'has-error': $validate.form.title.$error, 'has-success': isSubmitted && !$validate.form.title.$error }">
                                <label for="title">Judul</label>
                                <input id="title" type="text" class="form-input" v-model="form.title" />
                                <template v-if="isSubmitted && $validate.form.title.$error">
                                    <p class="text-danger mt-1">Judul konten harus diisi</p>
                                </template>
                            </div>
                            <div :class="{ 'has-error': $validate.form.slug.$error, 'has-success': isSubmitted && !$validate.form.slug.$error }">
                                <label for="slug">Slug</label>
                                <input id="slug" type="text" class="form-input" v-model="form.slug" />
                                <template v-if="isSubmitted && $validate.form.slug.$error">
                                    <p class="text-danger mt-1">Slug konten harus diisi</p>
                                </template>
                            </div>
                        </div>
                        <div class="grid grid-cols-1 gap-4 md:grid-cols-4 gap-2">
                            <div :class="{ 'has-error': $validate.form.theme.$error, 'has-success': isSubmitted && !$validate.form.theme.$error }">
                                <label for="theme">Tema</label>
                                <multiselect id="theme"
                                    v-model="form.theme"
                                    :options="themes?.results"
                                    class="custom-multiselect"
                                    :searchable="true"
                                    placeholder="Pilih tema konten"
                                    selected-label=""
                                    select-label=""
                                    deselect-label=""
                                    label="theme"
                                    track-by="id"
                                ></multiselect>
                                <template v-if="isSubmitted && $validate.form.theme.$error">
                                    <p class="text-danger mt-1">Tema konten harus diisi</p>
                                </template>
                            </div>
                            <div :class="{ 'has-error': $validate.form.topic.$error, 'has-success': isSubmitted && !$validate.form.topic.$error }">
                                <label for="topic">Topik</label>
                                <multiselect id="topic"
                                    v-model="form.topic"
                                    :options="topics?.results"
                                    class="custom-multiselect"
                                    :searchable="true"
                                    placeholder="Pilih topik konten"
                                    selected-label=""
                                    select-label=""
                                    deselect-label=""
                                    label="topic"
                                    track-by="id"
                                ></multiselect>
                                <template v-if="isSubmitted && $validate.form.topic.$error">
                                    <p class="text-danger mt-1">Topik konten harus diisi</p>
                                </template>
                            </div>
                            <div :class="{ 'has-error': $validate.form.format.$error, 'has-success': isSubmitted && !$validate.form.format.$error }">
                                <label for="format">Format</label>
                                <multiselect id="format"
                                    v-model="form.format"
                                    :options="formats?.results"
                                    class="custom-multiselect"
                                    :searchable="true"
                                    placeholder="Pilih format konten"
                                    selected-label=""
                                    select-label=""
                                    deselect-label=""
                                    label="label"
                                    track-by="value"
                                ></multiselect>
                                <template v-if="isSubmitted && $validate.form.format.$error">
                                    <p class="text-danger mt-1">Format konten harus diisi</p>
                                </template>
                            </div>
                        </div>
                        <div class="grid grid-cols-1 gap-4 md:grid-cols-1 gap-2">
                            <div :class="{ 'has-error': $validate.form.content.$error, 'has-success': isSubmitted && !$validate.form.content.$error }">
                                <label for="content">Detail Konten</label>
                                <textarea id="content" rows="3" class="form-textarea" v-model="form.content"></textarea>
                                <template v-if="isSubmitted && $validate.form.content.$error">
                                    <p class="text-danger mt-1">Detail konten harus diisi</p>
                                </template>
                            </div>
                        </div>
                        <div class="grid grid-cols-1 gap-4 md:grid-cols-2 gap-2">
                            <div>
                                <label for="data">Data Konten (ditulis dalam format JSON)</label>
                                <textarea id="data" rows="3" class="form-textarea" v-model="form.data"></textarea>
                            </div>
                            <div>
                                <label for="grade">Kelas</label>
                                <div class="grid grid-cols-1 gap-4 md:grid-cols-3 gap-2">
                                    <label class="inline-flex cursor-pointer" v-for="n in 6" :key="n">
                                        <input type="checkbox" class="form-checkbox" v-model="form.grades" :value="n"/>
                                        <span class="text-white-dark">Kelas {{ n }}</span>
                                    </label>
                                </div>
                            </div>
                        </div>
                        <div class="grid grid-cols-1 gap-4 md:grid-cols-4 gap-2">
                            <div :class="{ 'has-error': $validate.form.point.$error, 'has-success': isSubmitted && !$validate.form.point.$error }">
                                <label for="point">Poin</label>
                                <input id="point" type="number" class="form-input" v-model="form.point" />
                                <template v-if="isSubmitted && $validate.form.point.$error">
                                    <p class="text-danger mt-1">Poin konten harus diisi dan lebih dari 0</p>
                                </template>
                            </div>
                            <div :class="{ 'has-error': $validate.form.coin.$error, 'has-success': isSubmitted && !$validate.form.coin.$error }">
                                <label for="coin">Koin</label>
                                <input id="coin" type="number" class="form-input" v-model="form.coin" />
                                <template v-if="isSubmitted && $validate.form.coin.$error">
                                    <p class="text-danger mt-1">Koin konten harus diisi dan lebih dari 0</p>
                                </template>
                            </div>
                        </div>
                        <div class="grid grid-cols-1 gap-4 md:grid-cols-2 gap-2 ">
                            <div class="custom-file-container" data-upload-id="featuredImage"
                                :class="{ 'has-error': $validate.form.featured_image.$error, 'has-success': isSubmitted && !$validate.form.featured_image.$error }">
                                <div class="label-container">
                                    <label for="featured_image">Gambar </label> <a href="javascript:;" class="custom-file-container__image-clear" title="Clear Image">×</a>
                                </div>
                                <label class="custom-file-container__custom-file" >
                                    <input id="featured_image" type="file" class="custom-file-container__custom-file__custom-file-input" 
                                        accept="image/png" @change="handleImageChange" />
                                    <input type="hidden" name="MAX_FILE_SIZE" value="10485760" />
                                    <span class="custom-file-container__custom-file__custom-file-control ltr:pr-20 rtl:pl-20"></span>
                                </label>
                                <template v-if="isSubmitted && $validate.form.featured_image.$error">
                                    <p class="text-danger mt-1">Gambar tema konten harus diisi</p>
                                </template>
                                <div class="custom-file-container__image-preview"></div>
                            </div>
                        </div>
                        <div class="flex items-center ltr:ml-auto mt-8">
                            <button type="submit" class="btn btn-success !py-1"><icon-save class="me-1" /> Simpan</button>
                            <button type="reset" class="btn btn-dark !py-1 ml-1"><icon-restore class="me-1" />Reset</button>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</template>

<script lang="ts" setup>
    import { reactive } from 'vue'
    import { useVuelidate } from '@vuelidate/core';
    import { integer, minValue, required } from '@vuelidate/validators';
    import Multiselect from '@suadelabs/vue3-multiselect';
    import '@suadelabs/vue3-multiselect/dist/vue3-multiselect.css';
    import '@/assets/css/file-upload-preview.css';

    useHead({ title: 'Daftar Konten' });

    const form = ref({
        title: '',
        slug: '',
        theme: null,
        topic: null,
        format: '',
        content: '',
        data: '',
        grades: [],
        point: 0, 
        coin: 0,
        featured_image: '',
    });
    const isSubmitted = ref(false);
    const rules = {
        form: {
            title: { required },
            slug: { required },
            theme: { required },
            topic: { required },
            format: { required },
            content: { required },
            grades: { required },
            point: { required, integer, minValue: minValue(0) },
            coin: { required, integer, minValue: minValue(0) },
            featured_image: { required },
        }
    };
    const $validate = useVuelidate(rules, { form });
    const router = useRouter();
    const config = useRuntimeConfig();

    const params = reactive({
        current_page: 1,
        pagesize: 10,
        sort_column: 'id',
        sort_direction: 'asc',
    });

    const { data: themes } = await useAsyncData('themes', 
        () => $fetch(`${config.public.apiBase}content/themes/`, {
            params: {
                page: params.current_page,
                page_size: 50
            }
        }), {
            watch: [params]
        }
    );

    const { data: topics } = await useAsyncData('topics', 
        () => $fetch(`${config.public.apiBase}content/topics/`, {
            params: {
                page: params.current_page,
                page_size: 50,
                theme: form.value.theme ? form.value.theme.id : ''
            }
        }), {
            watch: [params]
        }
    );

    watch(() => form.value.theme, async (val) => {
        form.value.topic = null
        if (val) {
            refreshNuxtData('topics');
        } else {
            
        }
    });

    const { data: formats } = await useAsyncData('formats', 
        () => $fetch(`${config.public.apiBase}content/formats/`)
    );
    
    onMounted(async () => {
        const fileupload = await import('file-upload-with-preview');
        let FileUploadWithPreview = fileupload.default;

        // single image upload
        new FileUploadWithPreview('featuredImage', {
            images: {
                baseImage: '/assets/images/file-preview.svg',
                backgroundImage: '',
            },
        });
    });

    const submitForm = async () => {
        isSubmitted.value = true;
        $validate.value.form.$touch();
        if ($validate.value.form.$invalid) {
            return false;
        }

        const formData = new FormData();
        formData.append('topic', form.value.topic);
        formData.append('theme', form.value.theme.id);
        formData.append('description', form.value.description);

        if (form.value.featured_image) {
            formData.append('featured_image', form.value.featured_image);
        }

        await $fetch(`${config.public.apiBase}content/topics/`, {
            method: 'POST',
            body: formData
        }).then(() => {
            //redirect
            router.push({ path: "/content/topics/list" });
        })
        .catch((error) => {

            //assign response error data to state "errors"
            console.log(error);
        });
    }

    function handleImageChange(event: { target: { files: any[]; }; }) {
        const file = event.target.files[0]

        if (!file) return

        const allowed = ['image/png']
        if (!allowed.includes(file.type)) {
            alert('Hanya PNG yang diizinkan')
            return
        }

        form.value.featured_image = file
    }
</script>