import { RECIPES } from '../data/catalog.js?v=9';
import { getRecipeGridSectionHTML, renderRecipeGrid } from '../ui/recipeGrid.js';

const DEFAULT_MIN_MINUTES = 5;
const DEFAULT_MAX_MINUTES = 120;

let filterState = {
    query: '',
    slots: [],
    tags: [],
    minMinutes: DEFAULT_MIN_MINUTES,
    maxMinutes: DEFAULT_MAX_MINUTES,
};

let recipeListDocListenersBound = false;
let recipeSearchOpen = false;

function matchesFilters(recipe) {
    const { query, slots, tags, minMinutes, maxMinutes } = filterState;

    if (query) {
        const q = query.toLowerCase();
        const haystack = `${recipe.title} ${(recipe.tags || []).join(' ')}`.toLowerCase();
        if (!haystack.includes(q)) return false;
    }

    if (slots.length > 0) {
        if (!recipe.allowedSlots.some((s) => slots.includes(s))) return false;
    }

    if (tags.length > 0) {
        const recipeTags = (recipe.tags || []).map((t) => t.toLowerCase());
        if (!tags.some((t) => recipeTags.includes(t.toLowerCase()))) return false;
    }

    if (minMinutes > DEFAULT_MIN_MINUTES && recipe.minutes < minMinutes) return false;
    if (maxMinutes < DEFAULT_MAX_MINUTES && recipe.minutes > maxMinutes) return false;

    return true;
}

function getFilteredRecipes() {
    return Object.values(RECIPES).filter(matchesFilters);
}

function syncRecipeScrollShadow() {
    syncRecipeTopbarUI();
}

function syncRecipeTopbarUI() {
    const searchWrap = document.getElementById('recipe-search-wrap');
    const searchShell = document.getElementById('recipe-search-shell');
    const rightWrap = document.getElementById('recipe-filter-wrap');
    const rightBtn = document.getElementById('recipe-filter-btn');
    const rightIcon = document.getElementById('recipe-right-btn-icon');
    const filterCount = document.getElementById('recipe-filter-count');
    const dot = document.getElementById('recipe-search-active-dot');
    const isOpen = recipeSearchOpen;
    if (searchWrap) searchWrap.classList.toggle('hidden', isOpen);
    if (searchShell) {
        searchShell.style.opacity = isOpen ? '1' : '0';
        searchShell.style.pointerEvents = isOpen ? 'auto' : 'none';
        searchShell.style.transform = isOpen ? 'translateY(0) scale(1)' : 'translateY(0.45rem) scale(0.98)';
    }
    if (rightIcon) {
        rightIcon.className = 'fas fa-xmark';
    }
    if (rightBtn) {
        rightBtn.setAttribute('aria-label', 'Zamknij wyszukiwanie');
    }
    if (rightWrap) {
        rightWrap.classList.toggle('hidden', !isOpen);
    }
    if (filterCount) {
        const showCount = false;
        filterCount.classList.toggle('hidden', !showCount);
        filterCount.classList.toggle('flex', showCount);
    }
    if (dot) {
        const hasQuery = Boolean(filterState.query);
        dot.classList.toggle('hidden', !hasQuery);
    }
}

function setSearchOpen(open, { clearQuery = false, focusInput = false } = {}) {
    const hadQuery = Boolean(filterState.query);
    recipeSearchOpen = open;
    document.documentElement.classList.toggle('is-inline-search-open', recipeSearchOpen);
    if (clearQuery) {
        filterState.query = '';
    }
    const input = document.getElementById('recipe-search-input');
    if (input) {
        if (open) {
            input.value = filterState.query;
            if (focusInput) {
                input.focus();
                input.setSelectionRange(input.value.length, input.value.length);
            }
        } else {
            input.blur();
        }
    }
    syncRecipeTopbarUI();
    if (clearQuery && hadQuery) renderGrid();
}

function renderGrid() {
    const grid = document.getElementById('recipe-grid');
    const emptyState = document.getElementById('recipe-empty-state');
    if (!grid) return;

    renderRecipeGrid({
        gridEl: grid,
        emptyStateEl: emptyState,
        recipes: getFilteredRecipes(),
        showSlotLabels: false,
        cardClassName: 'recipe-list-card recipe-catalog-card',
    });
    syncRecipeTopbarUI();
    requestAnimationFrame(syncRecipeScrollShadow);
}

export function getRecipeListHTML() {
    return `
    <div id="main-view" class="flex flex-col h-full absolute inset-0 bg-[rgb(var(--app-bg-rgb))] z-10" style="background:rgb(var(--app-bg-rgb)) !important;">
        ${getRecipeGridSectionHTML({
        scrollId: 'recipe-scroll',
        gridId: 'recipe-grid',
        emptyStateId: 'recipe-empty-state',
        scrollClassName: 'relative flex-1 overflow-y-auto px-4 pt-4 pb-32 bg-[rgb(var(--app-bg-rgb))]',
        gridClassName: 'grid grid-cols-3 gap-2 bg-[rgb(var(--app-bg-rgb))]',
        emptyTitle: 'Brak wyników',
        emptyMessage: 'Zmień kryteria wyszukiwania lub filtry',
    })}
        <div id="recipe-bottom-controls" class="pointer-events-none absolute inset-x-0 z-[34] h-[3.9rem]" style="bottom:calc(1.58rem + env(safe-area-inset-bottom) + var(--recipe-controls-lift, 0.335rem)); height:var(--recipe-bottom-control-size, 3.9rem); background:transparent !important; border:none !important; box-shadow:none !important; backdrop-filter:none !important; -webkit-backdrop-filter:none !important;">
            <div id="recipe-search-wrap" class="pointer-events-auto absolute bottom-0">
                <button type="button" id="recipe-search-btn" class="recipe-glass-btn recipe-bottom-action relative flex items-center justify-center transition-all duration-200" aria-label="Szukaj przepisów">
                    <i class="fas fa-search" aria-hidden="true"></i>
                    <span id="recipe-search-active-dot" class="hidden absolute -top-1 -right-1 w-[0.65rem] h-[0.65rem] rounded-full" style="background:rgb(var(--text-emphasis-rgb)); border:1px solid rgba(255,255,255,0.42); box-shadow:0 2px 6px rgba(var(--overlay-rgb),0.22);"></span>
                </button>
            </div>
            <div id="recipe-search-shell" class="recipe-glass-btn recipe-search-field pointer-events-none absolute bottom-0 flex items-center gap-2 px-3" style="opacity:0; transform:translateY(0.45rem) scale(0.98); transition:opacity 0.2s ease, transform 0.2s ease;">
                <i class="fas fa-search shrink-0" aria-hidden="true"></i>
                <input type="search" id="recipe-search-input" autocomplete="off" placeholder="Szukaj przepisów…"
                    class="flex-1 min-w-0 h-full bg-transparent outline-none text-[15px] leading-none py-0" style="appearance:none; -webkit-appearance:none; background:transparent !important; background-color:transparent !important; background-image:none !important; border:none !important; border-radius:0 !important; box-shadow:none !important; backdrop-filter:none !important; -webkit-backdrop-filter:none !important; color:rgb(var(--text-body-rgb)); margin:0; padding:0 !important;">
            </div>

            <div id="recipe-filter-wrap" class="pointer-events-auto absolute bottom-0 right-4">
                <button type="button" id="recipe-filter-btn" class="recipe-glass-btn recipe-bottom-action relative flex items-center justify-center transition-all duration-200" aria-label="Otwórz filtry">
                    <i id="recipe-right-btn-icon" class="fas fa-sliders-h" aria-hidden="true"></i>
                    <span id="recipe-filter-count" class="hidden absolute -top-1 -right-1 min-w-[1.1rem] h-[1.1rem] px-1 rounded-full text-[9px] font-bold leading-none items-center justify-center" style="background:rgba(var(--text-emphasis-rgb),0.86); background-image:none !important; border:1px solid rgba(255,255,255,0.42); color:rgb(var(--app-bg-rgb)); box-shadow:0 2px 6px rgba(var(--overlay-rgb),0.22);"></span>
                </button>
            </div>
        </div>
    </div>
    `;
}

export function getFilterState() {
    return filterState;
}

export function applyFilters(newState) {
    Object.assign(filterState, newState);
    renderGrid();
}

export function getFilteredCount() {
    return getFilteredRecipes().length;
}

export function refreshRecipeList() {
    renderGrid();
}

export function setupRecipeList() {
    renderGrid();

    document.getElementById('recipe-search-btn')?.addEventListener('click', (e) => {
        e.stopPropagation();
        setSearchOpen(true, { focusInput: true });
    });
    document.getElementById('recipe-search-input')?.addEventListener('input', (e) => {
        filterState.query = e.target.value.trim();
        renderGrid();
    });
    document.getElementById('recipe-search-input')?.addEventListener('keydown', (e) => {
        if (e.key !== 'Escape') return;
        e.stopPropagation();
        setSearchOpen(false, { clearQuery: true });
    });
    document.getElementById('recipe-filter-btn')?.addEventListener('click', (e) => {
        e.stopPropagation();
        if (recipeSearchOpen) {
            setSearchOpen(false, { clearQuery: true });
        }
    });

    document.getElementById('recipe-grid')?.addEventListener('click', (e) => {
        const card = e.target.closest('.recipe-browser-card');
        if (!card) return;
        const recipeId = card.getAttribute('data-recipe-id');
        if (recipeId) window.openRecipeDetail?.(recipeId);
    });

    if (!recipeListDocListenersBound) {
        recipeListDocListenersBound = true;
        document.addEventListener('keydown', (e) => {
            const isRecipeViewVisible = !document.getElementById('main-view')?.classList.contains('hidden');
            if (e.key !== 'Escape') return;
            if (isRecipeViewVisible) {
                if (recipeSearchOpen) setSearchOpen(false, { clearQuery: true });
            }
        });

        window.addEventListener('app-tab-change', () => {
            if (recipeSearchOpen) setSearchOpen(false);
            syncRecipeTopbarUI();
        });

        window.closeRecipeSearch = () => {
            if (recipeSearchOpen) setSearchOpen(false);
            syncRecipeTopbarUI();
        };
    }
}