/*
 * This file is part of the MicroPython project, http://micropython.org/
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 Damien P. George
 * Copyright (c) Quectel Wireless Solution, Co., Ltd.All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include "py/objtuple.h"

#if MICROPY_PY_ATTRTUPLE || MICROPY_PY_COLLECTIONS

// this helper function is used by collections.namedtuple
#if !MICROPY_PY_COLLECTIONS
STATIC
#endif
void mp_obj_attrtuple_print_helper(const mp_print_t *print, const qstr *fields, mp_obj_tuple_t *o) {
 mp_print_str(print, "(");
 for (size_t i = 0; i < o->len; i++) {
 if (i > 0) {
 mp_print_str(print, ", ");
 }
 mp_printf(print, "%q=", fields[i]);
 mp_obj_print_helper(print, o->items[i], PRINT_REPR);
 }
 mp_print_str(print, ")");
}

#endif

#if MICROPY_PY_ATTRTUPLE

STATIC void mp_obj_attrtuple_print(const mp_print_t *print, mp_obj_t o_in, mp_print_kind_t kind) {
 (void)kind;
 mp_obj_tuple_t *o = MP_OBJ_TO_PTR(o_in);
 const qstr *fields = (const qstr *)MP_OBJ_TO_PTR(o->items[o->len]);
 mp_obj_attrtuple_print_helper(print, fields, o);
}

STATIC void mp_obj_attrtuple_attr(mp_obj_t self_in, qstr attr, mp_obj_t *dest) {
 if (dest[0] == MP_OBJ_NULL) {
 // load attribute
 mp_obj_tuple_t *self = MP_OBJ_TO_PTR(self_in);
 size_t len = self->len;
 const qstr *fields = (const qstr *)MP_OBJ_TO_PTR(self->items[len]);
 for (size_t i = 0; i < len; i++) {
 if (fields[i] == attr) {
 dest[0] = self->items[i];
 return;
 }
 }
 }
}

mp_obj_t mp_obj_new_attrtuple(const qstr *fields, size_t n, const mp_obj_t *items) {
 mp_obj_tuple_t *o = m_new_obj_var(mp_obj_tuple_t, mp_obj_t, n + 1);
 o->base.type = &mp_type_attrtuple;
 o->len = n;
 for (size_t i = 0; i < n; i++) {
 o->items[i] = items[i];
 }
 o->items[n] = MP_OBJ_FROM_PTR(fields);
 return MP_OBJ_FROM_PTR(o);
}

const mp_obj_type_t mp_type_attrtuple = {
 { &mp_type_type },
 .name = MP_QSTR_tuple, // reuse tuple to save on a qstr
 .print = mp_obj_attrtuple_print,
 .unary_op = mp_obj_tuple_unary_op,
 .binary_op = mp_obj_tuple_binary_op,
 .attr = mp_obj_attrtuple_attr,
 .subscr = mp_obj_tuple_subscr,
 .getiter = mp_obj_tuple_getiter,
};

#endif // MICROPY_PY_ATTRTUPLE