/*
 * Copyright (C) 2011-2013 Red Hat, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library.  If not, see
 * <http://www.gnu.org/licenses/>.
 *
 */

#include <config.h>

#include "virjson.h"
#include "virbuffer.h"
#include "virxml.h"
#include "virhash.h"
#include "testutils.h"
#include "testutilsqemu.h"
#include "tests/testutilsqemuschema.h"
#include "qemumonitortestutils.h"
#include "qemu/qemu_migration_params.h"
#define LIBVIRT_QEMU_MIGRATION_PARAMSPRIV_H_ALLOW
#include "qemu/qemu_migration_paramspriv.h"
#include "qemu/qemu_monitor.h"

#define VIR_FROM_THIS VIR_FROM_NONE

typedef struct _qemuMigParamsData qemuMigParamsData;
struct _qemuMigParamsData {
    virDomainXMLOption *xmlopt;
    const char *name;
    GHashTable *qmpschema;
};


static void
qemuMigParamsTestFormatXML(virBuffer *buf,
                           qemuMigrationParams *migParams)
{
    virBufferAddLit(buf, "<test>\n");
    virBufferAdjustIndent(buf, 2);

    if (migParams)
        qemuMigrationParamsFormat(buf, migParams);

    virBufferAdjustIndent(buf, -2);
    virBufferAddLit(buf, "</test>\n");
}


static int
qemuMigParamsTestXML2XML(const void *opaque)
{
    const qemuMigParamsData *data = opaque;
    g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
    g_autofree char *xmlFile = NULL;
    g_autoptr(xmlDoc) doc = NULL;
    g_autoptr(xmlXPathContext) ctxt = NULL;
    g_autoptr(qemuMigrationParams) migParams = NULL;
    g_autofree char *actualXML = NULL;

    xmlFile = g_strdup_printf("%s/qemumigparamsdata/%s.xml", abs_srcdir,
                              data->name);

    if (!(doc = virXMLParseFileCtxt(xmlFile, &ctxt)))
        return -1;

    if (qemuMigrationParamsParse(ctxt, &migParams) < 0)
        return -1;

    qemuMigParamsTestFormatXML(&buf, migParams);

    if (!(actualXML = virBufferContentAndReset(&buf)))
        return -1;

    if (virTestCompareToFile(actualXML, xmlFile) < 0)
        return -1;

    return 0;
}


static int
qemuMigParamsTestXML(const void *opaque)
{
    const qemuMigParamsData *data = opaque;
    g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
    g_autofree char *replyFile = NULL;
    g_autofree char *xmlFile = NULL;
    qemuMonitorTest *mon = NULL;
    g_autoptr(virJSONValue) params = NULL;
    g_autoptr(qemuMigrationParams) migParams = NULL;
    g_autofree char *actualXML = NULL;
    int ret = -1;

    replyFile = g_strdup_printf("%s/qemumigparamsdata/%s.reply",
                                abs_srcdir, data->name);
    xmlFile = g_strdup_printf("%s/qemumigparamsdata/%s.xml",
                              abs_srcdir, data->name);

    if (!(mon = qemuMonitorTestNewFromFile(replyFile, data->xmlopt, true)))
        goto cleanup;

    if (qemuMonitorGetMigrationParams(qemuMonitorTestGetMonitor(mon),
                                      &params) < 0)
        goto cleanup;

    if (!(migParams = qemuMigrationParamsFromJSON(params)))
        goto cleanup;

    qemuMigParamsTestFormatXML(&buf, migParams);

    if (!(actualXML = virBufferContentAndReset(&buf)))
        goto cleanup;

    if (virTestCompareToFile(actualXML, xmlFile) < 0)
        goto cleanup;

    ret = 0;

 cleanup:
    qemuMonitorTestFree(mon);
    return ret;
}


static int
qemuMigParamsTestJSON(const void *opaque)
{
    const qemuMigParamsData *data = opaque;
    g_autofree char *replyFile = NULL;
    g_autofree char *jsonFile = NULL;
    qemuMonitorTest *mon = NULL;
    g_autoptr(virJSONValue) paramsIn = NULL;
    g_autoptr(virJSONValue) paramsOut = NULL;
    g_autoptr(qemuMigrationParams) migParams = NULL;
    g_autofree char *actualJSON = NULL;
    g_auto(virBuffer) debug = VIR_BUFFER_INITIALIZER;
    int ret = -1;

    replyFile = g_strdup_printf("%s/qemumigparamsdata/%s.reply",
                                abs_srcdir, data->name);
    jsonFile = g_strdup_printf("%s/qemumigparamsdata/%s.json",
                               abs_srcdir, data->name);

    if (!(mon = qemuMonitorTestNewFromFile(replyFile, data->xmlopt, true)))
        goto cleanup;

    if (qemuMonitorGetMigrationParams(qemuMonitorTestGetMonitor(mon),
                                      &paramsIn) < 0)
        goto cleanup;

    if (!(migParams = qemuMigrationParamsFromJSON(paramsIn)))
        goto cleanup;

    if (!(paramsOut = qemuMigrationParamsToJSON(migParams)) ||
        !(actualJSON = virJSONValueToString(paramsOut, true)))
        goto cleanup;

    if (testQEMUSchemaValidateCommand("migrate-set-parameters",
                                      paramsOut,
                                      data->qmpschema,
                                      false,
                                      false,
                                      &debug) < 0) {
        VIR_TEST_VERBOSE("failed to validate migration params '%s' against QMP schema: %s",
                         actualJSON, virBufferCurrentContent(&debug));
        goto cleanup;
    }

    if (virTestCompareToFile(actualJSON, jsonFile) < 0)
        goto cleanup;

    ret = 0;

 cleanup:
    qemuMonitorTestFree(mon);
    return ret;
}


static int
mymain(void)
{
    g_autoptr(GHashTable) qmpschema = NULL;
    virQEMUDriver driver;
    int ret = 0;

    if (qemuTestDriverInit(&driver) < 0)
        return EXIT_FAILURE;

    virEventRegisterDefaultImpl();

    if (!(qmpschema = testQEMUSchemaLoadLatest("x86_64"))) {
        VIR_TEST_VERBOSE("failed to load QMP schema");
        return EXIT_FAILURE;
    }

#define DO_TEST(name) \
    do { \
        qemuMigParamsData data = { \
            driver.xmlopt, name, qmpschema \
        }; \
        if (virTestRun(name " (xml)", qemuMigParamsTestXML, &data) < 0) \
            ret = -1; \
        if (virTestRun(name " (json)", qemuMigParamsTestJSON, &data) < 0) \
            ret = -1; \
        if (virTestRun(name " (xml2xml)", qemuMigParamsTestXML2XML, &data) < 0) \
            ret = -1; \
    } while (0)

    DO_TEST("unsupported");
    DO_TEST("empty");
    DO_TEST("basic");
    DO_TEST("tls");
    DO_TEST("tls-enabled");
    DO_TEST("tls-hostname");

    qemuTestDriverFree(&driver);

    return (ret == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
}

VIR_TEST_MAIN(mymain)
