@extends('layouts.app')

@section('title', 'Notes')
@section('page-title', 'Notes Management 📝')
@section('page-subtitle', 'Quick notes, checklists & reminders')

@section('content')

    <div x-data="notesApp({{ json_encode($notes) }})" x-cloak>

        {{-- ── Toolbar ──────────────────────────────────────────────── --}}
        <div class="flex items-center justify-between mb-4">
            <button @click="openNew()" class="btn-sakura text-sm px-4 py-2 flex items-center gap-1.5 shrink-0">
                ＋ New Note
            </button>

            {{-- Count --}}
            <span class="text-xs text-gray-400 shrink-0"
                x-text="notes.length + ' note' + (notes.length !== 1 ? 's' : '')"></span>
        </div>

        {{-- ── Pinned section ───────────────────────────────────────── --}}
        <template x-if="filteredPinned.length > 0">
            <div class="mb-5">
                <div class="text-xs font-bold text-gray-400 uppercase tracking-wider mb-2 flex items-center gap-1.5">
                    📌 Pinned
                </div>
                <div class="grid grid-cols-2 sm:grid-cols-3 lg:grid-cols-4 xl:grid-cols-5 gap-3">
                    <template x-for="note in filteredPinned" :key="note.id">
                        <div class="rounded-3xl p-4 flex flex-col gap-2 shadow-sm border border-black/5 cursor-pointer
                                    hover:shadow-md transition-shadow duration-200 group relative"
                            :style="`background:${note.color || '#FFFFFF'}`" @click="openEdit(note)">

                            {{-- Pin badge --}}
                            <div
                                class="absolute top-2.5 right-2.5 text-xs text-amber-400 opacity-60 group-hover:opacity-100">
                                📌</div>

                            {{-- Title --}}
                            <p class="font-bold text-gray-800 text-sm leading-snug pr-5 line-clamp-2"
                                x-text="note.title || 'Untitled'"></p>

                            {{-- Content preview --}}
                            <div class="flex-1 text-xs text-gray-500 space-y-0.5 line-clamp-4">
                                <template x-for="(block, i) in (note.content || []).slice(0, 4)" :key="i">
                                    <div class="flex items-start gap-1.5 min-w-0">
                                        <template x-if="block.type === 'bullet'">
                                            <span class="shrink-0 text-gray-400 mt-px">•</span>
                                        </template>
                                        <template x-if="block.type === 'checkbox'">
                                            <span class="shrink-0 mt-px" x-text="block.checked ? '☑' : '☐'"></span>
                                        </template>
                                        <span class="truncate"
                                            :class="block.type === 'checkbox' && block.checked ? 'line-through text-gray-400' : ''"
                                            x-text="block.text || '…'"></span>
                                    </div>
                                </template>
                            </div>

                            {{-- Footer --}}
                            <div class="flex items-center justify-between mt-1">
                                <span class="text-xs text-gray-400" x-text="formatDate(note.updated_at)"></span>
                                <button @click.stop="deleteNote(note)"
                                    class="opacity-0 group-hover:opacity-100 text-xs text-red-400 hover:text-red-600 transition-opacity leading-none px-1">✕</button>
                            </div>
                        </div>
                    </template>
                </div>
            </div>
        </template>

        {{-- ── All / Other notes ────────────────────────────────────── --}}
        <template x-if="filteredUnpinned.length > 0 || (filteredPinned.length > 0)">
            <div>
                <template x-if="filteredPinned.length > 0 && filteredUnpinned.length > 0">
                    <div class="text-xs font-bold text-gray-400 uppercase tracking-wider mb-2">Others</div>
                </template>
                <div class="grid grid-cols-2 sm:grid-cols-3 lg:grid-cols-4 xl:grid-cols-5 gap-3">
                    <template x-for="note in filteredUnpinned" :key="note.id">
                        <div class="rounded-3xl p-4 flex flex-col gap-2 shadow-sm border border-black/5 cursor-pointer
                                    hover:shadow-md transition-shadow duration-200 group"
                            :style="`background:${note.color || '#FFFFFF'}`" @click="openEdit(note)">

                            {{-- Title --}}
                            <p class="font-bold text-gray-800 text-sm leading-snug line-clamp-2"
                                x-text="note.title || 'Untitled'"></p>

                            {{-- Content preview --}}
                            <div class="flex-1 text-xs text-gray-500 space-y-0.5">
                                <template x-for="(block, i) in (note.content || []).slice(0, 4)" :key="i">
                                    <div class="flex items-start gap-1.5 min-w-0">
                                        <template x-if="block.type === 'bullet'">
                                            <span class="shrink-0 text-gray-400 mt-px">•</span>
                                        </template>
                                        <template x-if="block.type === 'checkbox'">
                                            <span class="shrink-0 mt-px" x-text="block.checked ? '☑' : '☐'"></span>
                                        </template>
                                        <span class="truncate"
                                            :class="block.type === 'checkbox' && block.checked ? 'line-through text-gray-400' : ''"
                                            x-text="block.text || '…'"></span>
                                    </div>
                                </template>
                            </div>

                            {{-- Footer --}}
                            <div class="flex items-center justify-between mt-1">
                                <span class="text-xs text-gray-400" x-text="formatDate(note.updated_at)"></span>
                                <button @click.stop="deleteNote(note)"
                                    class="opacity-0 group-hover:opacity-100 text-xs text-red-400 hover:text-red-600 transition-opacity leading-none px-1">✕</button>
                            </div>
                        </div>
                    </template>
                </div>
            </div>
        </template>

        {{-- Empty state is only when NO notes exist --}}
        <template x-if="notes.length === 0">
            <div class="text-center py-20 text-gray-400">
                <span class="text-5xl block mb-3">📝</span>
                <p class="text-sm font-medium mb-4">No notes yet.</p>
                <button @click="openNew()" class="btn-sakura text-sm">Write your first note</button>
            </div>
        </template>


        {{-- ════════════════════════════════════════════════════════════
        Note Editor Modal
        ════════════════════════════════════════════════════════════ --}}
        <div x-show="showModal" x-transition:enter="transition ease-out duration-200" x-transition:enter-start="opacity-0"
            x-transition:enter-end="opacity-100" x-transition:leave="transition ease-in duration-150"
            x-transition:leave-start="opacity-100" x-transition:leave-end="opacity-0"
            class="fixed inset-0 z-50 flex items-end sm:items-center justify-center bg-black/40 px-0 sm:px-4"
            style="display:none" @keydown.escape.window="showModal = false">

            <div class="w-full sm:max-w-lg rounded-t-3xl sm:rounded-3xl shadow-2xl flex flex-col overflow-hidden"
                :style="`background:${editorColor || '#FFFFFF'}`" style="max-height:90vh" @click.stop>

                {{-- ── Modal Header ─────────────────────────────── --}}
                <div class="flex items-center gap-2 px-4 pt-4 pb-3 border-b border-black/5 shrink-0">

                    {{-- Color swatches --}}
                    <div class="flex gap-1.5 flex-wrap">
                        <template x-for="c in noteColors" :key="c">
                            <button @click="editorColor = c" type="button"
                                class="w-5 h-5 rounded-full border-2 transition-transform hover:scale-110 shrink-0"
                                :style="`background:${c}`"
                                :class="editorColor === c ? 'border-gray-500 scale-110' : 'border-gray-200'">
                            </button>
                        </template>
                    </div>

                    {{-- Pin toggle --}}
                    <button @click="editorPinned = !editorPinned" type="button"
                        class="ml-auto text-sm px-2.5 py-1 rounded-full border transition-colors shrink-0"
                        :class="editorPinned ? 'border-amber-300 bg-amber-50 text-amber-600' : 'border-gray-200 text-gray-400 hover:border-amber-200 hover:text-amber-400'">
                        📌 <span x-text="editorPinned ? 'Pinned' : 'Pin'"></span>
                    </button>

                    {{-- Close --}}
                    <button @click="showModal = false" type="button"
                        class="text-gray-400 hover:text-gray-600 text-xl leading-none shrink-0 ml-1">✕</button>
                </div>

                {{-- ── Scrollable Body ──────────────────────────── --}}
                <div class="flex-1 overflow-y-auto px-4 py-3 space-y-1">

                    {{-- Title --}}
                    <input type="text" x-model="editorTitle" x-ref="titleInput" placeholder="Note title…"
                        class="w-full bg-transparent border-none outline-none font-bold text-gray-800 text-lg placeholder-gray-300 mb-2"
                        @keydown.enter.prevent="focusFirstBlock()">

                    {{-- Blocks --}}
                    <template x-for="(block, idx) in editorBlocks" :key="block.id">
                        <div class="flex items-center gap-2 group/block py-0.5">

                            {{-- Left side: bullet / checkbox / empty --}}
                            <template x-if="block.type === 'bullet'">
                                <span class="text-gray-400 text-sm shrink-0 select-none mt-px">•</span>
                            </template>
                            <template x-if="block.type === 'checkbox'">
                                <input type="checkbox" x-model="block.checked"
                                    class="w-4 h-4 accent-pink-400 shrink-0 cursor-pointer mt-px" @click.stop>
                            </template>
                            <template x-if="block.type === 'paragraph'">
                                <span class="w-4 shrink-0"></span>
                            </template>

                            {{-- Text input --}}
                            <input type="text" x-model="block.text"
                                :placeholder="block.type === 'paragraph' ? 'Add text…' : block.type === 'bullet' ? 'List item…' : 'To-do item…'"
                                :class="block.type === 'checkbox' && block.checked ? 'line-through text-gray-400' : 'text-gray-700'"
                                class="flex-1 bg-transparent border-none outline-none text-sm placeholder-gray-300 py-0.5"
                                :data-block-id="block.id" @keydown.enter.prevent="insertBlockAfter(idx)"
                                @keydown.backspace="handleBackspace($event, block, idx)">

                            {{-- Block type switcher (hover) --}}
                            <div class="flex gap-0.5 opacity-0 group-hover/block:opacity-100 transition-opacity shrink-0">
                                <button @click.stop="changeType(idx, 'paragraph')" type="button"
                                    :class="block.type === 'paragraph' ? 'text-pink-500' : 'text-gray-300 hover:text-gray-500'"
                                    class="text-xs px-1 leading-none" title="Text">T</button>
                                <button @click.stop="changeType(idx, 'bullet')" type="button"
                                    :class="block.type === 'bullet' ? 'text-pink-500' : 'text-gray-300 hover:text-gray-500'"
                                    class="text-xs px-1 leading-none" title="Bullet">•</button>
                                <button @click.stop="changeType(idx, 'checkbox')" type="button"
                                    :class="block.type === 'checkbox' ? 'text-pink-500' : 'text-gray-300 hover:text-gray-500'"
                                    class="text-xs px-1 leading-none" title="Checkbox">☐</button>
                                <button @click.stop="removeBlock(idx)" type="button"
                                    class="text-xs px-1 leading-none text-gray-300 hover:text-red-400 ml-1"
                                    title="Remove">✕</button>
                            </div>
                        </div>
                    </template>

                    {{-- Add block toolbar --}}
                    <div class="flex gap-2 pt-3 border-t border-black/5 mt-2">
                        <button @click="addBlock('paragraph')" type="button"
                            class="flex items-center gap-1 text-xs px-3 py-1.5 rounded-full border border-gray-200 text-gray-500 hover:bg-white/60 hover:border-gray-300 transition-colors">
                            <span class="font-semibold">T</span> Text
                        </button>
                        <button @click="addBlock('bullet')" type="button"
                            class="flex items-center gap-1 text-xs px-3 py-1.5 rounded-full border border-gray-200 text-gray-500 hover:bg-white/60 hover:border-gray-300 transition-colors">
                            • Bullet
                        </button>
                        <button @click="addBlock('checkbox')" type="button"
                            class="flex items-center gap-1 text-xs px-3 py-1.5 rounded-full border border-gray-200 text-gray-500 hover:bg-white/60 hover:border-gray-300 transition-colors">
                            ☐ Checkbox
                        </button>
                    </div>
                </div>

                {{-- ── Modal Footer ─────────────────────────────── --}}
                <div class="flex gap-2 px-4 pb-5 pt-3 border-t border-black/5 shrink-0">
                    <button @click="saveNote()" type="button"
                        class="btn-sakura flex-1 py-2.5 text-sm flex items-center justify-center gap-2" :disabled="saving">
                        <span x-show="!saving">💾 Save Note</span>
                        <span x-show="saving" class="flex items-center gap-1.5"><span
                                class="animate-spin inline-block">🐾</span> Saving…</span>
                    </button>
                    <button @click="showModal = false" type="button"
                        class="flex-1 py-2.5 rounded-full border border-pink-200 text-gray-600 text-sm hover:bg-pink-50 transition-colors">
                        Cancel
                    </button>
                </div>
            </div>
        </div>

    </div>{{-- end x-data --}}

    @push('scripts')
        <script>
            function notesApp(initialNotes) {
                return {
                    notes: initialNotes,
                    showModal: false,
                    editing: null,

                    // editor state
                    editorTitle: '',
                    editorBlocks: [],
                    editorColor: '#FFFFFF',
                    editorPinned: false,
                    saving: false,
                    nextBlockId: 1,
                    searchQuery: '',

                    noteColors: [
                        '#FFFFFF', '#FFE4E8', '#FFF9C4', '#E8F5E9',
                        '#E3F2FD', '#F3E5F5', '#FFF3E0', '#E0F7FA'
                    ],

                    // ── Computed / Filtered ───────────────────────────────
                    get filteredPinned() {
                        return this.notes.filter(n => n.is_pinned);
                    },

                    get filteredUnpinned() {
                        return this.notes.filter(n => !n.is_pinned);
                    },

                    // ── Modal open/close ─────────────────────────────────
                    openNew() {
                        this.editing = null;
                        this.editorTitle = '';
                        this.editorBlocks = [this.makeBlock('paragraph')];
                        this.editorColor = '#FFFFFF';
                        this.editorPinned = false;
                        this.showModal = true;
                        this.$nextTick(() => this.$refs.titleInput?.focus());
                    },

                    openEdit(note) {
                        this.editing = note;
                        this.editorTitle = note.title || '';
                        this.editorBlocks = (note.content && note.content.length)
                            ? note.content.map(b => ({ ...b, id: this.nextBlockId++ }))
                            : [this.makeBlock('paragraph')];
                        this.editorColor = note.color || '#FFFFFF';
                        this.editorPinned = !!note.is_pinned;
                        this.showModal = true;
                        this.$nextTick(() => this.$refs.titleInput?.focus());
                    },

                    // ── CRUD ─────────────────────────────────────────────
                    async saveNote() {
                        if (!this.editorTitle.trim()) {
                            this.$refs.titleInput?.focus();
                            return;
                        }
                        this.saving = true;
                        const csrfToken = document.querySelector('meta[name=csrf-token]').content;

                        const payload = {
                            title: this.editorTitle.trim(),
                            content: this.editorBlocks.map(({ type, text, checked }) => ({ type, text: text || '', checked: !!checked })),
                            color: this.editorColor,
                            is_pinned: this.editorPinned,
                        };

                        const url = this.editing ? `/notes/${this.editing.id}` : '/notes';
                        const method = this.editing ? 'PUT' : 'POST';

                        try {
                            const res = await fetch(url, {
                                method,
                                headers: {
                                    'Content-Type': 'application/json',
                                    'Accept': 'application/json',
                                    'X-CSRF-TOKEN': csrfToken,
                                },
                                body: JSON.stringify(payload),
                            });
                            const saved = await res.json();

                            if (this.editing) {
                                const idx = this.notes.findIndex(n => n.id === this.editing.id);
                                if (idx !== -1) this.notes.splice(idx, 1, saved);
                            } else {
                                this.notes.unshift(saved);
                            }

                            this.showModal = false;
                        } catch (err) {
                            console.error('Save failed', err);
                        }
                        this.saving = false;
                    },

                    async deleteNote(note) {
                        if (!confirm(`Delete "${note.title || 'this note'}"?`)) return;
                        const csrfToken = document.querySelector('meta[name=csrf-token]').content;

                        const res = await fetch(`/notes/${note.id}`, {
                            method: 'DELETE',
                            headers: { 'Accept': 'application/json', 'X-CSRF-TOKEN': csrfToken },
                        });
                        if (res.ok) {
                            this.notes = this.notes.filter(n => n.id !== note.id);
                            if (this.editing && this.editing.id === note.id) {
                                this.showModal = false;
                            }
                        }
                    },

                    async togglePin(note) {
                        const csrfToken = document.querySelector('meta[name=csrf-token]').content;
                        const res = await fetch(`/notes/${note.id}/pin`, {
                            method: 'PATCH',
                            headers: { 'Accept': 'application/json', 'X-CSRF-TOKEN': csrfToken },
                        });
                        if (res.ok) {
                            const updated = await res.json();
                            const idx = this.notes.findIndex(n => n.id === note.id);
                            if (idx !== -1) this.notes.splice(idx, 1, updated);
                        }
                    },

                    // ── Block editor helpers ──────────────────────────────
                    makeBlock(type = 'paragraph') {
                        return { id: this.nextBlockId++, type, text: '', checked: false };
                    },

                    insertBlockAfter(idx) {
                        const currentType = this.editorBlocks[idx]?.type ?? 'paragraph';
                        const newBlock = this.makeBlock(currentType);
                        this.editorBlocks.splice(idx + 1, 0, newBlock);
                        this.$nextTick(() => {
                            document.querySelector(`[data-block-id="${newBlock.id}"]`)?.focus();
                        });
                    },

                    handleBackspace(e, block, idx) {
                        if (block.text === '' && this.editorBlocks.length > 1) {
                            e.preventDefault();
                            this.editorBlocks.splice(idx, 1);
                            this.$nextTick(() => {
                                const target = this.editorBlocks[Math.max(0, idx - 1)];
                                if (target) document.querySelector(`[data-block-id="${target.id}"]`)?.focus();
                            });
                        }
                    },

                    addBlock(type) {
                        const nb = this.makeBlock(type);
                        this.editorBlocks.push(nb);
                        this.$nextTick(() => {
                            document.querySelector(`[data-block-id="${nb.id}"]`)?.focus();
                        });
                    },

                    removeBlock(idx) {
                        if (this.editorBlocks.length > 1) {
                            this.editorBlocks.splice(idx, 1);
                        }
                    },

                    changeType(idx, type) {
                        this.editorBlocks[idx].type = type;
                    },

                    focusFirstBlock() {
                        const first = this.editorBlocks[0];
                        if (first) {
                            this.$nextTick(() => {
                                document.querySelector(`[data-block-id="${first.id}"]`)?.focus();
                            });
                        }
                    },

                    // ── Utilities ─────────────────────────────────────────
                    formatDate(dt) {
                        if (!dt) return '';
                        const d = new Date(dt);
                        const now = new Date();
                        const diff = now - d;

                        if (diff < 60000) return 'just now';
                        if (diff < 3600000) return Math.floor(diff / 60000) + 'm ago';
                        if (diff < 86400000) return Math.floor(diff / 3600000) + 'h ago';
                        if (diff < 604800000) return Math.floor(diff / 86400000) + 'd ago';

                        return d.toLocaleDateString('en-GB', { day: 'numeric', month: 'short' });
                    },
                };
            }
        </script>
    @endpush

@endsection