# Copyright (c) 2018 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""Algorithms to generate tables.
"""


import logging
import csv

from string import replace
from collections import OrderedDict
from numpy import nan, isnan
from xml.etree import ElementTree as ET

from errors import PresentationError
from utils import mean, stdev, relative_change, classify_anomalies, \
    convert_csv_to_pretty_txt


def generate_tables(spec, data):
    """Generate all tables specified in the specification file.

    :param spec: Specification read from the specification file.
    :param data: Data to process.
    :type spec: Specification
    :type data: InputData
    """

    logging.info("Generating the tables ...")
    for table in spec.tables:
        try:
            eval(table["algorithm"])(table, data)
        except NameError as err:
            logging.error("Probably algorithm '{alg}' is not defined: {err}".
                          format(alg=table["algorithm"], err=repr(err)))
    logging.info("Done.")


def table_details(table, input_data):
    """Generate the table(s) with algorithm: table_detailed_test_results
    specified in the specification file.

    :param table: Table to generate.
    :param input_data: Data to process.
    :type table: pandas.Series
    :type input_data: InputData
    """

    logging.info("  Generating the table {0} ...".
                 format(table.get("title", "")))

    # Transform the data
    logging.info("    Creating the data set for the {0} '{1}'.".
                 format(table.get("type", ""), table.get("title", "")))
    data = input_data.filter_data(table)

    # Prepare the header of the tables
    header = list()
    for column in table["columns"]:
        header.append('"{0}"'.format(str(column["title"]).replace('"', '""')))

    # Generate the data for the table according to the model in the table
    # specification
    job = table["data"].keys()[0]
    build = str(table["data"][job][0])
    try:
        suites = input_data.suites(job, build)
    except KeyError:
        logging.error("    No data available. The table will not be generated.")
        return

    for suite_longname, suite in suites.iteritems():
        # Generate data
        suite_name = suite["name"]
        table_lst = list()
        for test in data[job][build].keys():
            if data[job][build][test]["parent"] in suite_name:
                row_lst = list()
                for column in table["columns"]:
                    try:
                        col_data = str(data[job][build][test][column["data"].
                                       split(" ")[1]]).replace('"', '""')
                        if column["data"].split(" ")[1] in ("vat-history",
                                                            "show-run"):
                            col_data = replace(col_data, " |br| ", "",
                                               maxreplace=1)
                            col_data = " |prein| {0} |preout| ".\
                                format(col_data[:-5])
                        row_lst.append('"{0}"'.format(col_data))
                    except KeyError:
                        row_lst.append("No data")
                table_lst.append(row_lst)

        # Write the data to file
        if table_lst:
            file_name = "{0}_{1}{2}".format(table["output-file"], suite_name,
                                            table["output-file-ext"])
            logging.info("      Writing file: '{}'".format(file_name))
            with open(file_name, "w") as file_handler:
                file_handler.write(",".join(header) + "\n")
                for item in table_lst:
                    file_handler.write(",".join(item) + "\n")

    logging.info("  Done.")


def table_merged_details(table, input_data):
    """Generate the table(s) with algorithm: table_merged_details
    specified in the specification file.

    :param table: Table to generate.
    :param input_data: Data to process.
    :type table: pandas.Series
    :type input_data: InputData
    """

    logging.info("  Generating the table {0} ...".
                 format(table.get("title", "")))

    # Transform the data
    logging.info("    Creating the data set for the {0} '{1}'.".
                 format(table.get("type", ""), table.get("title", "")))
    data = input_data.filter_data(table)
    data = input_data.merge_data(data)
    data.sort_index(inplace=True)

    logging.info("    Creating the data set for the {0} '{1}'.".
                 format(table.get("type", ""), table.get("title", "")))
    suites = input_data.filter_data(table, data_set="suites")
    suites = input_data.merge_data(suites)

    # Prepare the header of the tables
    header = list()
    for column in table["columns"]:
        header.append('"{0}"'.format(str(column["title"]).replace('"', '""')))

    for _, suite in suites.iteritems():
        # Generate data
        suite_name = suite["name"]
        table_lst = list()
        for test in data.keys():
            if data[test]["parent"] in suite_name:
                row_lst = list()
                for column in table["columns"]:
                    try:
                        col_data = str(data[test][column["data"].
                                       split(" ")[1]]).replace('"', '""')
                        if column["data"].split(" ")[1] in ("vat-history",
                                                            "show-run"):
                            col_data = replace(col_data, " |br| ", "",
                                               maxreplace=1)
                            col_data = " |prein| {0} |preout| ".\
                                format(col_data[:-5])
                        row_lst.append('"{0}"'.format(col_data))
                    except KeyError:
                        row_lst.append("No data")
                table_lst.append(row_lst)

        # Write the data to file
        if table_lst:
            file_name = "{0}_{1}{2}".format(table["output-file"], suite_name,
                                            table["output-file-ext"])
            logging.info("      Writing file: '{}'".format(file_name))
            with open(file_name, "w") as file_handler:
                file_handler.write(",".join(header) + "\n")
                for item in table_lst:
                    file_handler.write(",".join(item) + "\n")

    logging.info("  Done.")


def table_performance_comparison(table, input_data):
    """Generate the table(s) with algorithm: table_performance_comparison
    specified in the specification file.

    :param table: Table to generate.
    :param input_data: Data to process.
    :type table: pandas.Series
    :type input_data: InputData
    """

    logging.info("  Generating the table {0} ...".
                 format(table.get("title", "")))

    # Transform the data
    logging.info("    Creating the data set for the {0} '{1}'.".
                 format(table.get("type", ""), table.get("title", "")))
    data = input_data.filter_data(table, continue_on_error=True)

    # Prepare the header of the tables
    try:
        header = ["Test case", ]

        if table["include-tests"] == "MRR":
            hdr_param = "Receive Rate"
        else:
            hdr_param = "Throughput"

        history = table.get("history", None)
        if history:
            for item in history:
                header.extend(
                    ["{0} {1} [Mpps]".format(item["title"], hdr_param),
                     "{0} Stdev [Mpps]".format(item["title"])])
        header.extend(
            ["{0} {1} [Mpps]".format(table["reference"]["title"], hdr_param),
             "{0} Stdev [Mpps]".format(table["reference"]["title"]),
             "{0} {1} [Mpps]".format(table["compare"]["title"], hdr_param),
             "{0} Stdev [Mpps]".format(table["compare"]["title"]),
             "Delta [%]"])
        header_str = ",".join(header) + "\n"
    except (AttributeError, KeyError) as err:
        logging.error("The model is invalid, missing parameter: {0}".
                      format(err))
        return

    # Prepare data to the table:
    tbl_dict = dict()
    for job, builds in table["reference"]["data"].items():
        for build in builds:
            for tst_name, tst_data in data[job][str(build)].iteritems():
                tst_name_mod = tst_name.replace("-ndrpdrdisc", "").\
                    replace("-ndrpdr", "").replace("-pdrdisc", "").\
                    replace("-ndrdisc", "").replace("-pdr", "").\
                    replace("-ndr", "").\
                    replace("1t1c", "1c").replace("2t1c", "1c").\
                    replace("2t2c", "2c").replace("4t2c", "2c").\
                    replace("4t4c", "4c").replace("8t4c", "4c")
                if tbl_dict.get(tst_name_mod, None) is None:
                    name = "{0}-{1}".format(tst_data["parent"].split("-")[0],
                                            "-".join(tst_data["name"].
                                                     split("-")[:-1]))
                    tbl_dict[tst_name_mod] = {"name": name,
                                              "ref-data": list(),
                                              "cmp-data": list()}
                try:
                    # TODO: Re-work when NDRPDRDISC tests are not used
                    if table["include-tests"] == "MRR":
                        tbl_dict[tst_name_mod]["ref-data"]. \
                            append(tst_data["result"]["receive-rate"].avg)
                    elif table["include-tests"] == "PDR":
                        if tst_data["type"] == "PDR":
                            tbl_dict[tst_name_mod]["ref-data"]. \
                                append(tst_data["throughput"]["value"])
                        elif tst_data["type"] == "NDRPDR":
                            tbl_dict[tst_name_mod]["ref-data"].append(
                                tst_data["throughput"]["PDR"]["LOWER"])
                    elif table["include-tests"] == "NDR":
                        if tst_data["type"] == "NDR":
                            tbl_dict[tst_name_mod]["ref-data"]. \
                                append(tst_data["throughput"]["value"])
                        elif tst_data["type"] == "NDRPDR":
                            tbl_dict[tst_name_mod]["ref-data"].append(
                                tst_data["throughput"]["NDR"]["LOWER"])
                    else:
                        continue
                except TypeError:
                    pass  # No data in output.xml for this test

    for job, builds in table["compare"]["data"].items():
        for build in builds:
            for tst_name, tst_data in data[job][str(build)].iteritems():
                tst_name_mod = tst_name.replace("-ndrpdrdisc", ""). \
                    replace("-ndrpdr", "").replace("-pdrdisc", ""). \
                    replace("-ndrdisc", "").replace("-pdr", ""). \
                    replace("-ndr", "").\
                    replace("1t1c", "1c").replace("2t1c", "1c").\
                    replace("2t2c", "2c").replace("4t2c", "2c").\
                    replace("4t4c", "4c").replace("8t4c", "4c")
                try:
                    # TODO: Re-work when NDRPDRDISC tests are not used
                    if table["include-tests"] == "MRR":
                        tbl_dict[tst_name_mod]["cmp-data"]. \
                            append(tst_data["result"]["receive-rate"].avg)
                    elif table["include-tests"] == "PDR":
                        if tst_data["type"] == "PDR":
                            tbl_dict[tst_name_mod]["cmp-data"]. \
                                append(tst_data["throughput"]["value"])
                        elif tst_data["type"] == "NDRPDR":
                            tbl_dict[tst_name_mod]["cmp-data"].append(
                                tst_data["throughput"]["PDR"]["LOWER"])
                    elif table["include-tests"] == "NDR":
                        if tst_data["type"] == "NDR":
                            tbl_dict[tst_name_mod]["cmp-data"]. \
                                append(tst_data["throughput"]["value"])
                        elif tst_data["type"] == "NDRPDR":
                            tbl_dict[tst_name_mod]["cmp-data"].append(
                                tst_data["throughput"]["NDR"]["LOWER"])
                    else:
                        continue
                except KeyError:
                    pass
                except TypeError:
                    tbl_dict.pop(tst_name_mod, None)
    if history:
        for item in history:
            for job, builds in item["data"].items():
                for build in builds:
                    for tst_name, tst_data in data[job][str(build)].iteritems():
                        tst_name_mod = tst_name.replace("-ndrpdrdisc", ""). \
                            replace("-ndrpdr", "").replace("-pdrdisc", ""). \
                            replace("-ndrdisc", "").replace("-pdr", ""). \
                            replace("-ndr", "").\
                            replace("1t1c", "1c").replace("2t1c", "1c").\
                            replace("2t2c", "2c").replace("4t2c", "2c").\
                            replace("4t4c", "4c").replace("8t4c", "4c")
                        if tbl_dict.get(tst_name_mod, None) is None:
                            continue
                        if tbl_dict[tst_name_mod].get("history", None) is None:
                            tbl_dict[tst_name_mod]["history"] = OrderedDict()
                        if tbl_dict[tst_name_mod]["history"].get(item["title"],
                                                             None) is None:
                            tbl_dict[tst_name_mod]["history"][item["title"]] = \
                                list()
                        try:
                            # TODO: Re-work when NDRPDRDISC tests are not used
                            if table["include-tests"] == "MRR":
                                tbl_dict[tst_name_mod]["history"][item["title"
                                ]].append(tst_data["result"]["receive-rate"].
                                          avg)
                            elif table["include-tests"] == "PDR":
                                if tst_data["type"] == "PDR":
                                    tbl_dict[tst_name_mod]["history"][
                                        item["title"]].\
                                        append(tst_data["throughput"]["value"])
                                elif tst_data["type"] == "NDRPDR":
                                    tbl_dict[tst_name_mod]["history"][item[
                                        "title"]].append(tst_data["throughput"][
                                        "PDR"]["LOWER"])
                            elif table["include-tests"] == "NDR":
                                if tst_data["type"] == "NDR":
                                    tbl_dict[tst_name_mod]["history"][
                                        item["title"]].\
                                        append(tst_data["throughput"]["value"])
                                elif tst_data["type"] == "NDRPDR":
                                    tbl_dict[tst_name_mod]["history"][item[
                                        "title"]].append(tst_data["throughput"][
                                        "NDR"]["LOWER"])
                            else:
                                continue
                        except (TypeError, KeyError):
                            pass

    tbl_lst = list()
    for tst_name in tbl_dict.keys():
        item = [tbl_dict[tst_name]["name"], ]
        if history:
            if tbl_dict[tst_name].get("history", None) is not None:
                for hist_data in tbl_dict[tst_name]["history"].values():
                    if hist_data:
                        item.append(round(mean(hist_data) / 1000000, 2))
                        item.append(round(stdev(hist_data) / 1000000, 2))
                    else:
                        item.extend([None, None])
            else:
                item.extend([None, None])
        data_t = tbl_dict[tst_name]["ref-data"]
        if data_t:
            item.append(round(mean(data_t) / 1000000, 2))
            item.append(round(stdev(data_t) / 1000000, 2))
        else:
            item.extend([None, None])
        data_t = tbl_dict[tst_name]["cmp-data"]
        if data_t:
            item.append(round(mean(data_t) / 1000000, 2))
            item.append(round(stdev(data_t) / 1000000, 2))
        else:
            item.extend([None, None])
        if item[-4] is not None and item[-2] is not None and item[-4] != 0:
            item.append(int(relative_change(float(item[-4]), float(item[-2]))))
        if len(item) == len(header):
            tbl_lst.append(item)

    # Sort the table according to the relative change
    tbl_lst.sort(key=lambda rel: rel[-1], reverse=True)

    # Generate csv tables:
    csv_file = "{0}.csv".format(table["output-file"])
    with open(csv_file, "w") as file_handler:
        file_handler.write(header_str)
        for test in tbl_lst:
            file_handler.write(",".join([str(item) for item in test]) + "\n")

    convert_csv_to_pretty_txt(csv_file, "{0}.txt".format(table["output-file"]))


def table_performance_trending_dashboard(table, input_data):
    """Generate the table(s) with algorithm:
    table_performance_trending_dashboard
    specified in the specification file.

    :param table: Table to generate.
    :param input_data: Data to process.
    :type table: pandas.Series
    :type input_data: InputData
    """

    logging.info("  Generating the table {0} ...".
                 format(table.get("title", "")))

    # Transform the data
    logging.info("    Creating the data set for the {0} '{1}'.".
                 format(table.get("type", ""), table.get("title", "")))
    data = input_data.filter_data(table, continue_on_error=True)

    # Prepare the header of the tables
    header = ["Test Case",
              "Trend [Mpps]",
              "Short-Term Change [%]",
              "Long-Term Change [%]",
              "Regressions [#]",
              "Progressions [#]"
              ]
    header_str = ",".join(header) + "\n"

    # Prepare data to the table:
    tbl_dict = dict()
    for job, builds in table["data"].items():
        for build in builds:
            for tst_name, tst_data in data[job][str(build)].iteritems():
                if tst_name.lower() in table["ignore-list"]:
                    continue
                if tbl_dict.get(tst_name, None) is None:
                    name = "{0}-{1}".format(tst_data["parent"].split("-")[0],
                                            tst_data["name"])
                    tbl_dict[tst_name] = {"name": name,
                                          "data": OrderedDict()}
                try:
                    tbl_dict[tst_name]["data"][str(build)] = \
                        tst_data["result"]["receive-rate"]
                except (TypeError, KeyError):
                    pass  # No data in output.xml for this test

    tbl_lst = list()
    for tst_name in tbl_dict.keys():
        data_t = tbl_dict[tst_name]["data"]
        if len(data_t) < 2:
            continue

        classification_lst, avgs = classify_anomalies(data_t)

        win_size = min(len(data_t), table["window"])
        long_win_size = min(len(data_t), table["long-trend-window"])

        try:
            max_long_avg = max(
                [x for x in avgs[-long_win_size:-win_size]
                 if not isnan(x)])
        except ValueError:
            max_long_avg = nan
        last_avg = avgs[-1]
        avg_week_ago = avgs[max(-win_size, -len(avgs))]

        if isnan(last_avg) or isnan(avg_week_ago) or avg_week_ago == 0.0:
            rel_change_last = nan
        else:
            rel_change_last = round(
                ((last_avg - avg_week_ago) / avg_week_ago) * 100, 2)

        if isnan(max_long_avg) or isnan(last_avg) or max_long_avg == 0.0:
            rel_change_long = nan
        else:
            rel_change_long = round(
                ((last_avg - max_long_avg) / max_long_avg) * 100, 2)

        if classification_lst:
            if isnan(rel_change_last) and isnan(rel_change_long):
                continue
            tbl_lst.append(
                [tbl_dict[tst_name]["name"],
                 '-' if isnan(last_avg) else
                 round(last_avg / 1000000, 2),
                 '-' if isnan(rel_change_last) else rel_change_last,
                 '-' if isnan(rel_change_long) else rel_change_long,
                 classification_lst[-win_size:].count("regression"),
                 classification_lst[-win_size:].count("progression")])

    tbl_lst.sort(key=lambda rel: rel[0])

    tbl_sorted = list()
    for nrr in range(table["window"], -1, -1):
        tbl_reg = [item for item in tbl_lst if item[4] == nrr]
        for nrp in range(table["window"], -1, -1):
            tbl_out = [item for item in tbl_reg if item[5] == nrp]
            tbl_out.sort(key=lambda rel: rel[2])
            tbl_sorted.extend(tbl_out)

    file_name = "{0}{1}".format(table["output-file"], table["output-file-ext"])

    logging.info("    Writing file: '{0}'".format(file_name))
    with open(file_name, "w") as file_handler:
        file_handler.write(header_str)
        for test in tbl_sorted:
            file_handler.write(",".join([str(item) for item in test]) + '\n')

    txt_file_name = "{0}.txt".format(table["output-file"])
    logging.info("    Writing file: '{0}'".format(txt_file_name))
    convert_csv_to_pretty_txt(file_name, txt_file_name)


def _generate_url(base, test_name):
    """Generate URL to a trending plot from the name of the test case.

    :param base: The base part of URL common to all test cases.
    :param test_name: The name of the test case.
    :type base: str
    :type test_name: str
    :returns: The URL to the plot with the trending data for the given test
        case.
    :rtype str
    """

    url = base
    file_name = ""
    anchor = "#"
    feature = ""

    if "lbdpdk" in test_name or "lbvpp" in test_name:
        file_name = "link_bonding.html"

    elif "testpmd" in test_name or "l3fwd" in test_name:
        file_name = "dpdk.html"

    elif "memif" in test_name:
        file_name = "container_memif.html"

    elif "srv6" in test_name:
        file_name = "srv6.html"

    elif "vhost" in test_name:
        if "l2xcbase" in test_name or "l2bdbasemaclrn" in test_name:
            file_name = "vm_vhost_l2.html"
        elif "ip4base" in test_name:
            file_name = "vm_vhost_ip4.html"

    elif "ipsec" in test_name:
        file_name = "ipsec.html"

    elif "ethip4lispip" in test_name or "ethip4vxlan" in test_name:
        file_name = "ip4_tunnels.html"

    elif "ip4base" in test_name or "ip4scale" in test_name:
        file_name = "ip4.html"
        if "iacl" in test_name or "snat" in test_name or "cop" in test_name:
            feature = "-features"

    elif "ip6base" in test_name or "ip6scale" in test_name:
        file_name = "ip6.html"

    elif "l2xcbase" in test_name or "l2xcscale" in test_name \
            or "l2bdbasemaclrn" in test_name or "l2bdscale" in test_name \
            or "l2dbbasemaclrn" in test_name or "l2dbscale" in test_name:
        file_name = "l2.html"
        if "iacl" in test_name:
            feature = "-features"

    if "x520" in test_name:
        anchor += "x520-"
    elif "x710" in test_name:
        anchor += "x710-"
    elif "xl710" in test_name:
        anchor += "xl710-"

    if "64b" in test_name:
        anchor += "64b-"
    elif "78b" in test_name:
        anchor += "78b-"
    elif "imix" in test_name:
        anchor += "imix-"
    elif "9000b" in test_name:
        anchor += "9000b-"
    elif "1518" in test_name:
        anchor += "1518b-"

    if "1t1c" in test_name:
        anchor += "1t1c"
    elif "2t2c" in test_name:
        anchor += "2t2c"
    elif "4t4c" in test_name:
        anchor += "4t4c"

    return url + file_name + anchor + feature


def table_performance_trending_dashboard_html(table, input_data):
    """Generate the table(s) with algorithm:
    table_performance_trending_dashboard_html specified in the specification
    file.

    :param table: Table to generate.
    :param input_data: Data to process.
    :type table: pandas.Series
    :type input_data: InputData
    """

    logging.info("  Generating the table {0} ...".
                 format(table.get("title", "")))

    try:
        with open(table["input-file"], 'rb') as csv_file:
            csv_content = csv.reader(csv_file, delimiter=',', quotechar='"')
            csv_lst = [item for item in csv_content]
    except KeyError:
        logging.warning("The input file is not defined.")
        return
    except csv.Error as err:
        logging.warning("Not possible to process the file '{0}'.\n{1}".
                        format(table["input-file"], err))
        return

    # Table:
    dashboard = ET.Element("table", attrib=dict(width="100%", border='0'))

    # Table header:
    tr = ET.SubElement(dashboard, "tr", attrib=dict(bgcolor="#7eade7"))
    for idx, item in enumerate(csv_lst[0]):
        alignment = "left" if idx == 0 else "center"
        th = ET.SubElement(tr, "th", attrib=dict(align=alignment))
        th.text = item

    # Rows:
    colors = {"regression": ("#ffcccc", "#ff9999"),
              "progression": ("#c6ecc6", "#9fdf9f"),
              "normal": ("#e9f1fb", "#d4e4f7")}
    for r_idx, row in enumerate(csv_lst[1:]):
        if int(row[4]):
            color = "regression"
        elif int(row[5]):
            color = "progression"
        else:
            color = "normal"
        background = colors[color][r_idx % 2]
        tr = ET.SubElement(dashboard, "tr", attrib=dict(bgcolor=background))

        # Columns:
        for c_idx, item in enumerate(row):
            alignment = "left" if c_idx == 0 else "center"
            td = ET.SubElement(tr, "td", attrib=dict(align=alignment))
            # Name:
            if c_idx == 0:
                url = _generate_url("../trending/", item)
                ref = ET.SubElement(td, "a", attrib=dict(href=url))
                ref.text = item
            else:
                td.text = item
    try:
        with open(table["output-file"], 'w') as html_file:
            logging.info("    Writing file: '{0}'".format(table["output-file"]))
            html_file.write(".. raw:: html\n\n\t")
            html_file.write(ET.tostring(dashboard))
            html_file.write("\n\t<p><br><br></p>\n")
    except KeyError:
        logging.warning("The output file is not defined.")
        return


def table_failed_tests(table, input_data):
    """Generate the table(s) with algorithm: table_failed_tests
    specified in the specification file.

    :param table: Table to generate.
    :param input_data: Data to process.
    :type table: pandas.Series
    :type input_data: InputData
    """

    logging.info("  Generating the table {0} ...".
                 format(table.get("title", "")))

    # Transform the data
    logging.info("    Creating the data set for the {0} '{1}'.".
                 format(table.get("type", ""), table.get("title", "")))
    data = input_data.filter_data(table, continue_on_error=True)

    # Prepare the header of the tables
    header = ["Test Case",
              "Failures [#]",
              "Last Failure [Time]",
              "Last Failure [VPP-Build-Id]",
              "Last Failure [CSIT-Job-Build-Id]"]

    # Generate the data for the table according to the model in the table
    # specification
    tbl_dict = dict()
    for job, builds in table["data"].items():
        for build in builds:
            build = str(build)
            for tst_name, tst_data in data[job][build].iteritems():
                if tst_name.lower() in table["ignore-list"]:
                    continue
                if tbl_dict.get(tst_name, None) is None:
                    name = "{0}-{1}".format(tst_data["parent"].split("-")[0],
                                            tst_data["name"])
                    tbl_dict[tst_name] = {"name": name,
                                          "data": OrderedDict()}
                try:
                    tbl_dict[tst_name]["data"][build] = (
                        tst_data["status"],
                        input_data.metadata(job, build).get("generated", ""),
                        input_data.metadata(job, build).get("version", ""),
                        build)
                except (TypeError, KeyError):
                    pass  # No data in output.xml for this test

    tbl_lst = list()
    for tst_data in tbl_dict.values():
        win_size = min(len(tst_data["data"]), table["window"])
        fails_nr = 0
        for val in tst_data["data"].values()[-win_size:]:
            if val[0] == "FAIL":
                fails_nr += 1
                fails_last_date = val[1]
                fails_last_vpp = val[2]
                fails_last_csit = val[3]
        if fails_nr:
            tbl_lst.append([tst_data["name"],
                            fails_nr,
                            fails_last_date,
                            fails_last_vpp,
                            "mrr-daily-build-{0}".format(fails_last_csit)])

    tbl_lst.sort(key=lambda rel: rel[2], reverse=True)
    tbl_sorted = list()
    for nrf in range(table["window"], -1, -1):
        tbl_fails = [item for item in tbl_lst if item[1] == nrf]
        tbl_sorted.extend(tbl_fails)
    file_name = "{0}{1}".format(table["output-file"], table["output-file-ext"])

    logging.info("    Writing file: '{0}'".format(file_name))
    with open(file_name, "w") as file_handler:
        file_handler.write(",".join(header) + "\n")
        for test in tbl_sorted:
            file_handler.write(",".join([str(item) for item in test]) + '\n')

    txt_file_name = "{0}.txt".format(table["output-file"])
    logging.info("    Writing file: '{0}'".format(txt_file_name))
    convert_csv_to_pretty_txt(file_name, txt_file_name)


def table_failed_tests_html(table, input_data):
    """Generate the table(s) with algorithm: table_failed_tests_html
    specified in the specification file.

    :param table: Table to generate.
    :param input_data: Data to process.
    :type table: pandas.Series
    :type input_data: InputData
    """

    logging.info("  Generating the table {0} ...".
                 format(table.get("title", "")))

    try:
        with open(table["input-file"], 'rb') as csv_file:
            csv_content = csv.reader(csv_file, delimiter=',', quotechar='"')
            csv_lst = [item for item in csv_content]
    except KeyError:
        logging.warning("The input file is not defined.")
        return
    except csv.Error as err:
        logging.warning("Not possible to process the file '{0}'.\n{1}".
                        format(table["input-file"], err))
        return

    # Table:
    failed_tests = ET.Element("table", attrib=dict(width="100%", border='0'))

    # Table header:
    tr = ET.SubElement(failed_tests, "tr", attrib=dict(bgcolor="#7eade7"))
    for idx, item in enumerate(csv_lst[0]):
        alignment = "left" if idx == 0 else "center"
        th = ET.SubElement(tr, "th", attrib=dict(align=alignment))
        th.text = item

    # Rows:
    colors = ("#e9f1fb", "#d4e4f7")
    for r_idx, row in enumerate(csv_lst[1:]):
        background = colors[r_idx % 2]
        tr = ET.SubElement(failed_tests, "tr", attrib=dict(bgcolor=background))

        # Columns:
        for c_idx, item in enumerate(row):
            alignment = "left" if c_idx == 0 else "center"
            td = ET.SubElement(tr, "td", attrib=dict(align=alignment))
            # Name:
            if c_idx == 0:
                url = _generate_url("../trending/", item)
                ref = ET.SubElement(td, "a", attrib=dict(href=url))
                ref.text = item
            else:
                td.text = item
    try:
        with open(table["output-file"], 'w') as html_file:
            logging.info("    Writing file: '{0}'".format(table["output-file"]))
            html_file.write(".. raw:: html\n\n\t")
            html_file.write(ET.tostring(failed_tests))
            html_file.write("\n\t<p><br><br></p>\n")
    except KeyError:
        logging.warning("The output file is not defined.")
        return