/* hashstring.cc - Wrapper around HashString
 *
 * Copyright 2009 Julian Andres Klode <jak@debian.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 */
#include <Python.h>
#include "generic.h"
#include "apt_pkgmodule.h"
#include <apt-pkg/hashes.h>

static PyObject *HashString_NEW(PyTypeObject *type,PyObject *Args,
                                PyObject *kwds)
{
    const char *Hash;
    const char *Type;
    char *kwlist[] = {"type", "hash",  NULL};
    if (PyArg_ParseTupleAndKeywords(Args, kwds, "s|s", kwlist, &Type,
                                    &Hash) == 0)
        return 0;
    CppPyObject<HashString*> *PyObj = CppPyObject_NEW<HashString*>(type);
    if (Hash)
        PyObj->Object = new HashString(Type,Hash);
    else // Type is the combined form now (i.e. type:hash)
        PyObj->Object = new HashString(Type);
    return PyObj;
}

PyObject *PyHashString_FromCpp(HashString *obj)
{
    return CppPyObject_NEW<HashString*>(&PyHashString_Type, obj);
}

static PyObject *HashString_Repr(PyObject *self)
{
    HashString *hash = GetCpp<HashString*>(self);
    char repr[100];
    sprintf(repr, "<%s: \"%s\">", self->ob_type->tp_name, hash->toStr().c_str());
    return PyString_FromString(repr);
}

static PyObject *HashString_ToStr(PyObject *self)
{
    HashString *hash = GetCpp<HashString*>(self);
    return CppPyString(hash->toStr());
}

static PyObject *HashString_HashType(PyObject *self)
{
    HashString *hash = GetCpp<HashString*>(self);
    return CppPyString(hash->HashType());
}

static char *HashString_VerifyFile_doc =
    "verify_file(filename: str) --> bool\n\n"
    "Verify that the file indicated by filename matches the hash.";

static PyObject *HashString_VerifyFile(PyObject *self,PyObject *args)
{
    HashString *hash = GetCpp<HashString*>(self);
    char *filename;
    if (PyArg_ParseTuple(args, "s", &filename) == 0)
        return 0;
    return PyBool_FromLong(hash->VerifyFile(filename));
}

static PyMethodDef HashString_Methods[] = {
    {"to_str",(PyCFunction)HashString_ToStr,METH_NOARGS,
     "to_str() --> str\n\nReturn a string, consisting of type:hash"},
    {"verify_file",HashString_VerifyFile,METH_VARARGS,
     HashString_VerifyFile_doc},
    {"hash_type",(PyCFunction)HashString_HashType,METH_NOARGS,
     "hash_type() --> str\n\nReturn the type of hash (MD5Sum,SHA1,SHA256)"},
    {}
};

static char *HashString_doc =
    "HashString(type, hash) OR HashString('type:hash')\n\n"
    "Create a new HashString object. The first form allows you to specify\n"
    "a type and a hash, and the second form a single string where type and\n"
    "hash are seperated by a colon, e.g.::\n\n"
    "   HashString('MD5Sum', '6cc1b6e6655e3555ac47e5b5fe26d04e')\n\n"
    "Valid options for 'type' are: MD5Sum, SHA1, SHA256.";
PyTypeObject PyHashString_Type = {
    PyVarObject_HEAD_INIT(&PyType_Type, 0)
    "apt_pkg.HashString",              // tp_name
    sizeof(CppPyObject<HashString*>),  // tp_basicsize
    0,                                 // tp_itemsize
    // Methods
    CppDeallocPtr<HashString*>,        // tp_dealloc
    0,                                 // tp_print
    0,                                 // tp_getattr
    0,                                 // tp_setattr
    0,                                 // tp_compare
    HashString_Repr,                   // tp_repr
    0,                                 // tp_as_number
    0,                                 // tp_as_sequence
    0,                                 // tp_as_mapping
    0,                                 // tp_hash
    0,                                 // tp_call
    HashString_ToStr,                  // tp_str
    0,                                 // tp_getattro
    0,                                 // tp_setattro
    0,                                 // tp_as_buffer
    (Py_TPFLAGS_DEFAULT |              // tp_flags
     Py_TPFLAGS_BASETYPE),
    HashString_doc,                    // tp_doc
    0,                                 // tp_traverse
    0,                                 // tp_clear
    0,                                 // tp_richcompare
    0,                                 // tp_weaklistoffset
    0,                                 // tp_iter
    0,                                 // tp_iternext
    HashString_Methods,                // tp_methods
    0,                                 // tp_members
    0,                                 // tp_getset
    0,                                 // tp_base
    0,                                 // tp_dict
    0,                                 // tp_descr_get
    0,                                 // tp_descr_set
    0,                                 // tp_dictoffset
    0,                                 // tp_init
    0,                                 // tp_alloc
    HashString_NEW,                    // tp_new
};