<!--
|--------------------------------------------------------------------------
| Agência PSI
|--------------------------------------------------------------------------
| Criado e desenvolvido por Leonardo Nohama
|
| Tecnologia aplicada à escuta.
| Estrutura para o cuidado.
|
| Arquivo: src/views/pages/saas/SaasFeaturesPage.vue
| Data: 2026
| Local: São Carlos/SP — Brasil
|--------------------------------------------------------------------------
| © 2026 — Todos os direitos reservados
|--------------------------------------------------------------------------
-->
<script setup>
import { ref, onMounted, onBeforeUnmount, computed } from 'vue';
import { supabase } from '@/lib/supabase/client';

import Textarea from 'primevue/textarea';
import { useToast } from 'primevue/usetoast';
import { useConfirm } from 'primevue/useconfirm';

const toast = useToast();
const confirm = useConfirm();

const loading = ref(false);
const rows = ref([]);

const showDlg = ref(false);
const saving = ref(false);
const isEdit = ref(false);

const q = ref('');
const showInactive = ref(false);

const form = ref({
    id: null,
    key: '',
    name: '',
    descricao: ''
});

function isUniqueViolation(err) {
    if (!err) return false;
    if (err.code === '23505') return true;
    const msg = String(err.message || '');
    return msg.includes('duplicate key value') || msg.includes('unique constraint');
}

function isFkViolation(err) {
    if (!err) return false;
    if (err.code === '23503') return true;
    const msg = String(err.message || '').toLowerCase();
    return msg.includes('foreign key') || msg.includes('violates foreign key');
}

function slugifyKey(s) {
    return String(s || '')
        .normalize('NFD')
        .replace(/[\u0300-\u036f]/g, '')
        .toLowerCase()
        .trim()
        .replace(/\s+/g, '_')
        .replace(/[^a-z0-9._]/g, '');
}

function featureDomain(key) {
    const k = String(key || '').trim();
    if (!k) return 'geral';
    if (k.includes('.')) return k.split('.')[0];
    if (k.includes('_')) return k.split('_')[0];
    return k;
}

function domainSeverity(domain) {
    const d = String(domain || '').toLowerCase();
    if (d.includes('agenda') || d.includes('scheduling')) return 'info';
    if (d.includes('billing') || d.includes('assin') || d.includes('plano')) return 'success';
    if (d.includes('portal') || d.includes('patient')) return 'warn';
    if (d.includes('admin') || d.includes('saas')) return 'secondary';
    return 'secondary';
}

const filteredRows = computed(() => {
    const term = String(q.value || '')
        .trim()
        .toLowerCase();
    let list = rows.value || [];
    if (!showInactive.value) list = list.filter((r) => r.is_active !== false);
    if (!term) return list;
    return list.filter((r) => {
        return [r.key, r.name, r.descricao].some((s) =>
            String(s || '')
                .toLowerCase()
                .includes(term)
        );
    });
});

async function fetchAll() {
    loading.value = true;
    try {
        const { data, error } = await supabase.from('features').select('id, key, name, descricao, created_at, is_active').order('key', { ascending: true });

        if (error) throw error;
        rows.value = data || [];
    } catch (e) {
        toast.add({ severity: 'error', summary: 'Erro', detail: e?.message || String(e), life: 4500 });
    } finally {
        loading.value = false;
    }
}

function openCreate() {
    isEdit.value = false;
    form.value = { id: null, key: '', name: '', descricao: '' };
    showDlg.value = true;
}

function openEdit(row) {
    isEdit.value = true;
    form.value = {
        id: row.id,
        key: row.key ?? '',
        name: row.name ?? '',
        descricao: row.descricao ?? ''
    };
    showDlg.value = true;
}

function validate() {
    const k = slugifyKey(form.value.key);
    if (!k) {
        toast.add({ severity: 'warn', summary: 'Atenção', detail: 'Informe a key do recurso.', life: 3000 });
        return false;
    }
    if (!String(form.value.name || '').trim()) {
        toast.add({ severity: 'warn', summary: 'Atenção', detail: 'Informe o nome do recurso.', life: 3000 });
        return false;
    }

    const exists = rows.value.some(
        (r) =>
            String(r.key || '')
                .trim()
                .toLowerCase() === k && r.id !== form.value.id
    );
    if (exists) {
        toast.add({ severity: 'warn', summary: 'Key já existente', detail: 'Já existe um recurso com essa key.', life: 3000 });
        return false;
    }

    form.value.key = k;
    form.value.name = String(form.value.name || '').trim();
    form.value.descricao = String(form.value.descricao || '').trim();
    return true;
}

async function save() {
    if (saving.value) return;
    if (!validate()) return;

    saving.value = true;
    try {
        const payload = {
            key: form.value.key,
            name: form.value.name,
            descricao: form.value.descricao
        };

        if (isEdit.value) {
            const { error } = await supabase.from('features').update(payload).eq('id', form.value.id);
            if (error) throw error;
            toast.add({ severity: 'success', summary: 'Ok', detail: 'Recurso atualizado.', life: 2500 });
        } else {
            const { error } = await supabase.from('features').insert(payload);
            if (error) throw error;
            toast.add({ severity: 'success', summary: 'Ok', detail: 'Recurso criado.', life: 2500 });
        }

        showDlg.value = false;
        await fetchAll();
    } catch (e) {
        if (isUniqueViolation(e)) {
            toast.add({ severity: 'warn', summary: 'Key já existente', detail: 'Já existe um recurso com essa key.', life: 3500 });
        } else {
            toast.add({ severity: 'error', summary: 'Erro', detail: e?.message || String(e), life: 4500 });
        }
    } finally {
        saving.value = false;
    }
}

function askDelete(row) {
    confirm.require({
        message: `Depreciar o recurso "${row.key}"? Tenants que já têm o recurso continuam com ele; só some do catálogo.`,
        header: 'Depreciar recurso',
        icon: 'pi pi-exclamation-triangle',
        acceptClass: 'p-button-danger',
        accept: () => doSoftDelete(row, false)
    });
}

function askReactivate(row) {
    confirm.require({
        message: `Reativar o recurso "${row.key}"? Volta ao catálogo e fica disponível para novos planos.`,
        header: 'Reativar recurso',
        icon: 'pi pi-check',
        acceptClass: 'p-button-success',
        accept: () => doSoftDelete(row, true)
    });
}

async function doSoftDelete(row, reactivate) {
    try {
        const { error } = await supabase.from('features').update({ is_active: !!reactivate }).eq('id', row.id);
        if (error) throw error;
        toast.add({
            severity: 'success',
            summary: 'Ok',
            detail: reactivate ? 'Recurso reativado.' : 'Recurso depreciado.',
            life: 2500
        });
        await fetchAll();
    } catch (e) {
        toast.add({
            severity: 'error',
            summary: 'Erro',
            detail: e?.message || String(e),
            life: 5200
        });
    }
}

// ── Hero sticky ───────────────────────────────────────────
const heroEl = ref(null);
const heroSentinelRef = ref(null);
const heroMenuRef = ref(null);
const heroStuck = ref(false);
let disconnectStickyObserver = null;

const heroMenuItems = computed(() => [
    { label: 'Atualizar', icon: 'pi pi-refresh', command: fetchAll, disabled: loading.value || saving.value },
    { label: 'Adicionar recurso', icon: 'pi pi-plus', command: openCreate, disabled: saving.value }
]);

onMounted(async () => {
    await fetchAll();

    const sentinel = heroSentinelRef.value;
    if (sentinel) {
        const io = new IntersectionObserver(
            ([entry]) => {
                heroStuck.value = !entry.isIntersecting;
            },
            { rootMargin: `${document.querySelector('.l2-main') ? '0px' : '-56px'} 0px 0px 0px` }
        );
        io.observe(sentinel);
        disconnectStickyObserver = () => io.disconnect();
    }
});

onBeforeUnmount(() => {
    try {
        disconnectStickyObserver?.();
    } catch {}
});
</script>

<template>
    <ConfirmDialog />

    <div class="flex flex-col gap-4 p-4">
        <!-- Header -->
        <div class="cfg-subheader">
            <div class="cfg-subheader__icon"><i class="pi pi-sparkles" /></div>
            <div class="min-w-0 flex-1">
                <div class="cfg-subheader__title">Recursos do Sistema</div>
                <div class="cfg-subheader__sub">Cadastre os recursos (features) que os planos podem habilitar.</div>
            </div>
            <div class="hidden xl:flex items-center gap-2 shrink-0">
                <Button label="Atualizar" icon="pi pi-refresh" severity="secondary" outlined size="small" :loading="loading" :disabled="saving" @click="fetchAll" />
                <Button label="Adicionar recurso" icon="pi pi-plus" size="small" :disabled="saving" @click="openCreate" />
            </div>
            <div class="flex xl:hidden shrink-0">
                <Button label="Ações" icon="pi pi-ellipsis-v" severity="warn" size="small" aria-haspopup="true" aria-controls="features_hero_menu" @click="(e) => heroMenuRef.toggle(e)" />
                <Menu ref="heroMenuRef" id="features_hero_menu" :model="heroMenuItems" :popup="true" />
            </div>
        </div>
        <!-- Search -->
        <div class="flex items-center gap-3 flex-wrap">
            <FloatLabel variant="on" class="w-full md:w-[380px]">
                <IconField class="w-full">
                    <InputIcon class="pi pi-search" />
                    <InputText v-model="q" id="features_search" class="w-full pr-10" variant="filled" autocomplete="off" :disabled="loading || saving" />
                </IconField>
                <label for="features_search">Buscar por key, nome ou descrição</label>
            </FloatLabel>
            <label class="inline-flex items-center gap-2 text-[0.95rem] text-[var(--text-color-secondary)] cursor-pointer">
                <input type="checkbox" v-model="showInactive" class="accent-current" />
                Mostrar depreciados
            </label>
        </div>

        <DataTable :value="filteredRows" dataKey="id" :loading="loading" stripedRows responsiveLayout="scroll">
            <Column header="Domínio" style="width: 9rem">
                <template #body="{ data }">
                    <Tag :value="featureDomain(data.key)" :severity="domainSeverity(featureDomain(data.key))" rounded />
                </template>
            </Column>

            <Column field="key" header="Key" sortable style="min-width: 18rem">
                <template #body="{ data }">
                    <div class="flex flex-col">
                        <span class="font-medium font-mono text-[1rem]">{{ data.key }}</span>
                        <div class="text-[1rem] text-[var(--text-color-secondary)]">ID: {{ data.id }}</div>
                    </div>
                </template>
            </Column>

            <Column field="name" header="Nome" sortable style="min-width: 16rem">
                <template #body="{ data }">
                    <span>{{ data.name || '—' }}</span>
                </template>
            </Column>

            <Column field="descricao" header="Descrição" sortable style="min-width: 22rem">
                <template #body="{ data }">
                    <div class="max-w-[600px] whitespace-nowrap overflow-hidden text-ellipsis text-[var(--text-color-secondary)]" :title="data.descricao || ''">
                        {{ data.descricao || '—' }}
                    </div>
                </template>
            </Column>

            <Column field="created_at" header="Criado em" sortable style="width: 13rem" />

            <Column header="Status" style="width: 8rem">
                <template #body="{ data }">
                    <Tag :value="data.is_active === false ? 'depreciado' : 'ativo'" :severity="data.is_active === false ? 'warn' : 'success'" />
                </template>
            </Column>

            <Column header="Ações" style="width: 12rem">
                <template #body="{ data }">
                    <div class="flex gap-2 justify-end">
                        <Button icon="pi pi-pencil" severity="secondary" outlined @click="openEdit(data)" />
                        <Button v-if="data.is_active !== false" icon="pi pi-trash" severity="danger" outlined @click="askDelete(data)" v-tooltip.top="'Depreciar'" />
                        <Button v-else icon="pi pi-replay" severity="success" outlined @click="askReactivate(data)" v-tooltip.top="'Reativar'" />
                    </div>
                </template>
            </Column>
        </DataTable>
    </div>

    <Dialog v-model:visible="showDlg" modal :header="isEdit ? 'Editar recurso' : 'Novo recurso'" :style="{ width: '640px' }" :closable="!saving" :dismissableMask="!saving" :draggable="false">
        <div class="flex flex-col gap-4">
            <!-- Key -->
            <div>
                <FloatLabel variant="on">
                    <IconField>
                        <InputIcon class="pi pi-tag" />
                        <InputText id="cr-key" v-model.trim="form.key" class="w-full" variant="filled" :disabled="saving" autocomplete="off" autofocus @blur="form.key = slugifyKey(form.key)" @keydown.enter.prevent="save" />
                    </IconField>
                    <label for="cr-key">Key *</label>
                </FloatLabel>
                <div class="text-[1rem] text-[var(--text-color-secondary)] mt-1">Ex.: <span class="font-mono">agenda.view</span> ou <span class="font-mono">online_scheduling.manage</span>. Espaços e acentos são normalizados automaticamente.</div>
            </div>

            <!-- Nome -->
            <div>
                <FloatLabel variant="on">
                    <IconField>
                        <InputIcon class="pi pi-bookmark" />
                        <InputText id="cr-name" v-model.trim="form.name" class="w-full" variant="filled" :disabled="saving" autocomplete="off" @keydown.enter.prevent="save" />
                    </IconField>
                    <label for="cr-name">Nome *</label>
                </FloatLabel>
                <div class="text-[1rem] text-[var(--text-color-secondary)] mt-1">Nome exibido para o usuário na página de upgrade e nas listagens.</div>
            </div>

            <!-- Descrição PT-BR -->
            <div>
                <FloatLabel variant="on">
                    <Textarea id="cr-desc-pt" v-model.trim="form.descricao" class="w-full" rows="3" autoResize :disabled="saving" />
                    <label for="cr-desc-pt">Descrição</label>
                </FloatLabel>
                <div class="text-[1rem] text-[var(--text-color-secondary)] mt-1">Explique o que o recurso habilita e para quem se aplica.</div>
            </div>
        </div>

        <template #footer>
            <Button label="Cancelar" severity="secondary" outlined @click="showDlg = false" :disabled="saving" />
            <Button :label="isEdit ? 'Salvar' : 'Criar'" icon="pi pi-check" :loading="saving" @click="save" />
        </template>
    </Dialog>
</template>