export const api = {
  async conversations({ q = "", status = "", state = "" } = {}) {
    const u = new URL("/conversations", location.origin);
    if (q) u.searchParams.set("q", q);
    if (status) u.searchParams.set("status", status);
    if (state) u.searchParams.set("state", state);
    return fetch(u).then(r => r.json());
  },

  async deleteConversation(chat_id) {
    if (!chat_id) throw new Error("chat_id_required");
    return fetch(`/conversations/${encodeURIComponent(chat_id)}`, { method: "DELETE" }).then(r => r.json());
  },

  async users({ q = "", limit = 200 } = {}) {
    const u = new URL("/users", location.origin);
    if (q) u.searchParams.set("q", String(q));
    u.searchParams.set("limit", String(limit));
    return fetch(u).then(r => r.json());
  },

  async deleteUser(chat_id, { deleteWoo = false } = {}) {
    if (!chat_id) throw new Error("chat_id_required");
    const u = new URL(`/users/${encodeURIComponent(chat_id)}`, location.origin);
    if (deleteWoo) u.searchParams.set("deleteWoo", "1");
    return fetch(u, { method: "DELETE" }).then(r => r.json());
  },

  async messages({ chat_id, limit = 200 } = {}) {
    const u = new URL("/messages", location.origin);
    if (chat_id) u.searchParams.set("chat_id", chat_id);
    u.searchParams.set("limit", String(limit));
    return fetch(u).then(r => r.json());
  },

  async runs({ chat_id, limit = 1 } = {}) {
    const u = new URL("/runs", location.origin);
    if (chat_id) u.searchParams.set("chat_id", chat_id);
    u.searchParams.set("limit", String(limit));
    return fetch(u).then(r => r.json());
  },

  async runById(run_id) {
    if (!run_id) return null;
    return fetch(`/runs/${encodeURIComponent(run_id)}`).then(r => r.json());
  },

  async simEvolution(payload) {
    return fetch("/webhook/evolution", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify(payload),
    }).then(r => r.json());
  },

  async retryLast(chat_id) {
    if (!chat_id) throw new Error("chat_id_required");
    return fetch(`/conversations/${encodeURIComponent(chat_id)}/retry-last`, { method: "POST" }).then(r => r.json());
  },

  // Products CRUD
  async products({ q = "", limit = 2000, offset = 0 } = {}) {
    const u = new URL("/products", location.origin);
    if (q) u.searchParams.set("q", q);
    u.searchParams.set("limit", String(limit));
    u.searchParams.set("offset", String(offset));
    return fetch(u).then(r => r.json());
  },

  async productById(id) {
    if (!id) return null;
    return fetch(`/products/${encodeURIComponent(id)}`).then(r => r.json());
  },

  async syncProducts() {
    return fetch("/products/sync", { method: "POST" }).then(r => r.json());
  },

  async updateProductUnit(wooProductId, { sell_unit }) {
    return fetch(`/products/${encodeURIComponent(wooProductId)}/unit`, {
      method: "PATCH",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ sell_unit }),
    }).then(r => r.json());
  },

  async updateProduct(wooProductId, { sell_unit, categories }) {
    return fetch(`/products/${encodeURIComponent(wooProductId)}`, {
      method: "PATCH",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ sell_unit, categories }),
    }).then(r => r.json());
  },

  async updateProductsUnit(wooProductIds, { sell_unit }) {
    return fetch(`/products/bulk/unit`, {
      method: "PATCH",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ woo_product_ids: wooProductIds, sell_unit }),
    }).then(r => r.json());
  },

  // Aliases CRUD
  async aliases({ q = "", woo_product_id = null, limit = 200 } = {}) {
    const u = new URL("/aliases", location.origin);
    if (q) u.searchParams.set("q", q);
    if (woo_product_id) u.searchParams.set("woo_product_id", String(woo_product_id));
    u.searchParams.set("limit", String(limit));
    return fetch(u).then(r => r.json());
  },

  async createAlias(data) {
    return fetch("/aliases", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify(data),
    }).then(r => r.json());
  },

  async updateAlias(alias, data) {
    return fetch(`/aliases/${encodeURIComponent(alias)}`, {
      method: "PUT",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify(data),
    }).then(r => r.json());
  },

  async deleteAlias(alias) {
    return fetch(`/aliases/${encodeURIComponent(alias)}`, { method: "DELETE" }).then(r => r.json());
  },

  // Recommendations CRUD
  async recommendations({ q = "", limit = 200 } = {}) {
    const u = new URL("/recommendations", location.origin);
    if (q) u.searchParams.set("q", q);
    u.searchParams.set("limit", String(limit));
    return fetch(u).then(r => r.json());
  },

  async getRecommendation(id) {
    if (!id) return null;
    return fetch(`/recommendations/${encodeURIComponent(id)}`).then(r => r.json());
  },

  async createRecommendation(data) {
    return fetch("/recommendations", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify(data),
    }).then(r => r.json());
  },

  async updateRecommendation(id, data) {
    return fetch(`/recommendations/${encodeURIComponent(id)}`, {
      method: "PUT",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify(data),
    }).then(r => r.json());
  },

  async deleteRecommendation(id) {
    return fetch(`/recommendations/${encodeURIComponent(id)}`, { method: "DELETE" }).then(r => r.json());
  },

  // Quantities (cantidades por producto/evento/persona)
  async listQuantities() {
    return fetch("/quantities").then(r => r.json());
  },

  async getProductQuantities(wooProductId) {
    if (!wooProductId) return { rules: [] };
    return fetch(`/quantities/${encodeURIComponent(wooProductId)}`).then(r => r.json());
  },

  async saveProductQuantities(wooProductId, rules) {
    return fetch(`/quantities/${encodeURIComponent(wooProductId)}`, {
      method: "PUT",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ rules }),
    }).then(r => r.json());
  },

  // Sync de emergencia desde WooCommerce
  async syncFromWoo() {
    return fetch("/products/sync-from-woo", { method: "POST" }).then(r => r.json());
  },

  // --- Testing ---
  async listRecentOrders({ limit = 20 } = {}) {
    const u = new URL("/test/orders", location.origin);
    u.searchParams.set("limit", String(limit));
    return fetch(u).then(r => r.json());
  },

  async getProductsWithStock() {
    return fetch("/test/products-with-stock").then(r => r.json());
  },

  async createTestOrder({ basket, address, wa_chat_id }) {
    return fetch("/test/order", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ basket, address, wa_chat_id }),
    }).then(r => r.json());
  },

  async createPaymentLink({ woo_order_id, amount }) {
    return fetch("/test/payment-link", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ woo_order_id, amount }),
    }).then(r => r.json());
  },

  async simulateMpWebhook({ woo_order_id, amount }) {
    return fetch("/test/simulate-webhook", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ woo_order_id, amount }),
    }).then(r => r.json());
  },

  // --- Prompts CRUD ---
  async prompts() {
    return fetch("/prompts").then(r => r.json());
  },

  async getPrompt(key) {
    return fetch(`/prompts/${encodeURIComponent(key)}`).then(r => r.json());
  },

  async savePrompt(key, { content, model, created_by }) {
    return fetch(`/prompts/${encodeURIComponent(key)}`, {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ content, model, created_by }),
    }).then(r => r.json());
  },

  async rollbackPrompt(key, version) {
    return fetch(`/prompts/${encodeURIComponent(key)}/rollback/${version}`, { 
      method: "POST" 
    }).then(r => r.json());
  },

  async resetPrompt(key) {
    return fetch(`/prompts/${encodeURIComponent(key)}/reset`, { 
      method: "POST" 
    }).then(r => r.json());
  },

  async testPrompt(key, { content, test_message, store_config }) {
    return fetch(`/prompts/${encodeURIComponent(key)}/test`, {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ content, test_message, store_config }),
    }).then(r => r.json());
  },

  // --- Human Takeovers ---
  async takeovers({ limit = 50 } = {}) {
    const u = new URL("/takeovers", location.origin);
    u.searchParams.set("limit", String(limit));
    return fetch(u).then(r => r.json());
  },

  async getTakeover(id) {
    return fetch(`/takeovers/${id}`).then(r => r.json());
  },

  async respondTakeover(id, { response, add_alias, cart_items }) {
    return fetch(`/takeovers/${id}/respond`, {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ response, add_alias, cart_items }),
    }).then(r => r.json());
  },

  async cancelTakeover(id) {
    return fetch(`/takeovers/${id}/cancel`, { 
      method: "POST" 
    }).then(r => r.json());
  },

  // --- Settings ---
  async getSettings() {
    return fetch("/settings").then(r => r.json());
  },

  async saveSettings(settings) {
    const res = await fetch("/settings", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify(settings),
    });
    const data = await res.json();
    if (!res.ok || data.ok === false) {
      throw new Error(data.message || data.error || "Error guardando configuración");
    }
    return data;
  },
};