# Copyright (c) 2015 MaxPoint Interactive, Inc.
#
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# 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following
#    disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
#    disclaimer in the documentation and/or other materials provided with the distribution.
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"""
Cython helper for `from_bytes_c.py`
"""
from libc.stdlib cimport malloc, free
from libc.stdio cimport *
from libc.string cimport memcpy

cimport cyavro._cyavro as cyavro


cpdef get_reader(str fpath):
    py_byte_string = fpath.encode('UTF-8')
    cdef char* c_fpath =  py_byte_string
    cdef FILE* cfile = fopen(c_fpath, "rb")

    fseek(cfile, 0, SEEK_END)
    cdef long fsize = ftell(cfile)
    fseek(cfile, 0, SEEK_SET)

    cdef void *buffer = malloc(fsize + 1)
    fread(buffer, fsize, 1, cfile)

    cdef cyavro.AvroReader reader = cyavro.reader_from_bytes_c(buffer, fsize)
    fclose(cfile)
    return reader
