@extends('layouts.app')

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

@section('content')

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

    {{-- ── Toolbar ──────────────────────────────────────────────── --}}
    <div class="flex items-center gap-2 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>

        {{-- Search --}}
        <div class="relative flex-1 max-w-xs">
            <span class="absolute left-3 top-1/2 -translate-y-1/2 text-gray-400 text-sm pointer-events-none"></span>
            <input type="text" x-model="searchQuery" placeholder="🔍Search notes…"
                   class="input-soft pl-9 text-sm py-2 w-full">
        </div>

        {{-- Count --}}
        <span class="ml-auto 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 ──────────────────────────────────────────── --}}
    <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>

    <template x-if="notes.length > 0 && filteredPinned.length === 0 && filteredUnpinned.length === 0">
        <div class="text-center py-12 text-gray-400">
            <span class="text-3xl block mb-2">🔍</span>
            <p class="text-sm">No notes match "<span x-text="searchQuery"></span>"</p>
        </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.filterNotes(this.notes.filter(n => n.is_pinned));
        },

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

        filterNotes(list) {
            const q = this.searchQuery.trim().toLowerCase();
            if (!q) return list;
            return list.filter(n =>
                (n.title || '').toLowerCase().includes(q) ||
                (n.content || []).some(b => (b.text || '').toLowerCase().includes(q))
            );
        },

        // ── 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