# -*- coding: utf-8 -*-
# Copyright (c) 2018-2020 <NAME>
# reports.wwdt.me is relased under the terms of the Apache License 2.0
"""WWDTM Lightning Round Report Functions"""

from collections import OrderedDict
from typing import List, Dict
import mysql.connector

#region Retrieval Functions
def retrieve_all_lightning_round_start(database_connection: mysql.connector.connect
                                      ) -> Dict:
    """Retrieve all Lightning Fill-in-the-Blank round starting scores
    and return the values as an OrderedDict"""

    show_lightning_round_starts = OrderedDict()
    cursor = database_connection.cursor(dictionary=True)
    query = ("SELECT s.showid, s.showdate, p.panelistid, p.panelist, "
             "pm.panelistlrndstart "
             "FROM ww_showpnlmap pm "
             "JOIN ww_shows s ON s.showid = pm.showid "
             "JOIN ww_panelists p ON p.panelistid = pm.panelistid "
             "WHERE s.bestof = 0 AND s.repeatshowid IS NULL "
             "AND s.showdate <> '2018-10-27' " # Excluding 25th anniversary special
             "AND pm.panelistlrndstart IS NOT NULL "
             "ORDER BY s.showdate ASC;")
    cursor.execute(query)
    result = cursor.fetchall()
    cursor.close()

    if not result:
        return None

    for row in result:
        show_id = row["showid"]
        if show_id not in show_lightning_round_starts:
            show_lightning_round_starts[show_id] = OrderedDict()
            show_lightning_round_starts[show_id]["id"] = show_id
            show_lightning_round_starts[show_id]["date"] = row["showdate"].isoformat()
            show_lightning_round_starts[show_id]["scores"] = []

        show_lightning_round_starts[show_id]["scores"].append(row["panelistlrndstart"])

    return show_lightning_round_starts

def retrieve_scoring_info_by_show_id(show_id: int,
                                     database_connection: mysql.connector.connect
                                    ) -> Dict:
    """Return Lightning round starting points, number of correct
    answers and final score for the requested show ID. Used for
    getting scoring details where the round starts in a three-way tie."""

    info = OrderedDict()
    cursor = database_connection.cursor(dictionary=True)
    query = ("SELECT s.showdate, pm.panelistlrndstart, "
             "pm.panelistlrndcorrect, pm.panelistscore "
             "FROM ww_shows s "
             "JOIN ww_showpnlmap pm ON pm.showid = s.showid "
             "WHERE s.showid = %s "
             "LIMIT 1;")
    cursor.execute(query, (show_id, ))
    result = cursor.fetchone()
    cursor.close()

    if not result:
        return None

    info["id"] = show_id
    info["date"] = result["showdate"].isoformat()
    info["start"] = result["panelistlrndstart"]
    info["correct"] = result["panelistlrndcorrect"]
    info["score"] = result["panelistscore"]

    return info

def retrieve_panelists_by_show_id(show_id: int,
                                  database_connection: mysql.connector.connect
                                  ) -> List[Dict]:
    """Returns a list of panelists for the requested show ID"""

    panelists = []
    cursor = database_connection.cursor(dictionary=True)
    query = ("SELECT p.panelistid, p.panelist, p.panelistslug "
             "FROM ww_showpnlmap pm "
             "JOIN ww_panelists p ON p.panelistid = pm.panelistid "
             "JOIN ww_shows s ON s.showid = pm.showid "
             "WHERE s.showid = %s "
             "ORDER BY pm.showpnlmapid ASC;")
    cursor.execute(query, (show_id,))
    result = cursor.fetchall()
    cursor.close()

    if not result:
        return None

    for row in result:
        panelist = OrderedDict()
        panelist["id"] = row["panelistid"]
        panelist["name"] = row["panelist"]
        panelist["slug"] = row["panelistslug"]
        panelists.append(panelist)

    return panelists

def shows_with_lightning_round_start_zero(database_connection: mysql.connector.connect
                                         ) -> List[Dict]:
    """Return shows in which panelists start the Lightning
    Fill-in-the-Blank round with zero points"""

    shows = []
    cursor = database_connection.cursor(dictionary=True)
    query = ("SELECT s.showid, s.showdate, p.panelistid, p.panelist, "
             "pm.panelistlrndstart, pm.panelistlrndcorrect, pm.panelistscore, "
             "pm.showpnlrank "
             "FROM ww_showpnlmap pm "
             "JOIN ww_shows s ON s.showid = pm.showid "
             "JOIN ww_panelists p ON p.panelistid = pm.panelistid "
             "WHERE s.bestof = 0 AND s.repeatshowid IS NULL "
             "AND pm.panelistlrndstart = 0 "
             "ORDER BY s.showdate ASC;")
    cursor.execute(query)
    result = cursor.fetchall()
    cursor.close()

    if not result:
        return None

    for row in result:
        show = OrderedDict()
        show["id"] = row["showid"]
        show["date"] = row["showdate"].isoformat()
        panelist = OrderedDict()
        panelist["id"] = row["panelistid"]
        panelist["name"] = row["panelist"]
        panelist["start"] = row["panelistlrndstart"]
        panelist["correct"] = row["panelistlrndcorrect"]
        panelist["score"] = row["panelistscore"]
        panelist["rank"] = row["showpnlrank"]
        show["panelist"] = panelist
        shows.append(show)

    return shows

def shows_lightning_round_start_zero(database_connection: mysql.connector.connect
                                    ) -> List[Dict]:
    """Return list of shows in which a panelist starts the Lightning
    Fill-in-the-Blank round with zero points"""

    shows = []
    cursor = database_connection.cursor(dictionary=True)
    query = ("SELECT s.showid, s.showdate, p.panelistid, p.panelist, "
             "pm.panelistlrndstart, pm.panelistlrndcorrect, pm.panelistscore, "
             "pm.showpnlrank "
             "FROM ww_showpnlmap pm "
             "JOIN ww_shows s ON s.showid = pm.showid "
             "JOIN ww_panelists p ON p.panelistid = pm.panelistid "
             "WHERE s.bestof = 0 AND s.repeatshowid IS NULL "
             "AND pm.panelistlrndstart = 0 "
             "ORDER BY s.showdate ASC;")
    cursor.execute(query)
    result = cursor.fetchall()
    cursor.close()

    if not result:
        return None

    for row in result:
        show = OrderedDict()
        show["id"] = row["showid"]
        show["date"] = row["showdate"].isoformat()
        panelist = OrderedDict()
        panelist["id"] = row["panelistid"]
        panelist["name"] = row["panelist"]
        panelist["start"] = row["panelistlrndstart"]
        panelist["correct"] = row["panelistlrndcorrect"]
        panelist["score"] = row["panelistscore"]
        panelist["rank"] = row["showpnlrank"]
        show["panelist"] = panelist
        shows.append(show)

    return shows

def show_lightning_round_zero_correct(database_connection: mysql.connector.connect
                                     ) -> List[Dict]:
    """Return list of shows in which a panelist answers zero Lightning
    Fill-in-the-Blank round questions correct"""

    cursor = database_connection.cursor(dictionary=True)
    query = ("SELECT s.showid, s.showdate, p.panelistid, p.panelist, "
             "pm.panelistlrndstart, pm.panelistlrndcorrect, "
             "pm.panelistscore, pm.showpnlrank "
             "FROM ww_showpnlmap pm "
             "JOIN ww_shows s ON s.showid = pm.showid "
             "JOIN ww_panelists p ON p.panelistid = pm.panelistid "
             "WHERE s.bestof = 0 AND s.repeatshowid IS null "
             "AND pm.panelistlrndcorrect = 0 "
             "ORDER BY s.showdate ASC;")
    cursor.execute(query)
    result = cursor.fetchall()
    cursor.close()

    if not result:
        return None

    shows = []
    for row in result:
        show = OrderedDict()
        show["id"] = row["showid"]
        show["date"] = row["showdate"].isoformat()
        panelist = OrderedDict()
        panelist["id"] = row["panelistid"]
        panelist["name"] = row["panelist"]
        panelist["start"] = row["panelistlrndstart"]
        panelist["correct"] = row["panelistlrndcorrect"]
        panelist["score"] = row["panelistscore"]
        panelist["rank"] = row["showpnlrank"]
        show["panelist"] = panelist
        shows.append(show)

    return shows


def shows_starting_with_three_way_tie(database_connection: mysql.connector.connect
                                     ) -> List[Dict]:
    """Retrieve all shows in which all three panelists started the
    Lightning round in a three-way tie"""

    show_scores = retrieve_all_lightning_round_start(database_connection)
    shows = []

    for show in show_scores:
        show_id = show_scores[show]["id"]
        show_date = show_scores[show]["date"]

        if len(set(show_scores[show]["scores"])) == 1:
            show_info = OrderedDict()
            show_info["id"] = show_id
            show_info["date"] = show_date
            show_info["score"] = show_scores[show]["scores"][0]
            panelists = retrieve_panelists_by_show_id(show_id=show_id,
                                                      database_connection=database_connection)
            show_info["panelists"] = panelists
            shows.append(show_info)

    return shows

def shows_ending_with_three_way_tie(database_connection: mysql.connector.connect
                                   ) -> List[Dict]:
    """Retrieve all shows in which all three panelists ended the
    Lightning round in a three-way tie"""

    shows = []
    cursor = database_connection.cursor(dictionary=True)
    query = ("SELECT s.showid, s.showdate, pm.panelistscore, "
             "COUNT(pm.showpnlrank) "
             "FROM ww_showpnlmap pm "
             "JOIN ww_shows s ON s.showid = pm.showid "
             "JOIN ww_panelists p ON p.panelistid = pm.panelistid "
             "WHERE s.bestof = 0 AND s.repeatshowid IS NULL "
             "AND pm.showpnlrank = '1t' "
             "GROUP BY s.showid, pm.panelistscore "
             "HAVING COUNT(pm.showpnlrank) = 3 "
             "ORDER BY s.showdate ASC;")
    cursor.execute(query)
    result = cursor.fetchall()
    cursor.close()

    if not result:
        return None

    for row in result:
        show = OrderedDict()
        show["id"] = row["showid"]
        show["date"] = row["showdate"].isoformat()
        show["score"] = row["panelistscore"]
        show["panelists"] = retrieve_panelists_by_show_id(show_id=show["id"],
                                                          database_connection=database_connection)
        shows.append(show)

    return shows

def shows_starting_ending_three_way_tie(database_connection: mysql.connector.connect
                                       ) -> List[Dict]:
    """Retrieve all shows in which all three panelists started and
    ended the Lightning round in a three-way tie"""

    start_tie = shows_starting_with_three_way_tie(database_connection)
    end_tie = shows_ending_with_three_way_tie(database_connection)

    if not start_tie or not end_tie:
        return None

    start_tie_ids = []
    end_tie_ids = []

    for start_tie_show in start_tie:
        start_tie_ids.append(start_tie_show["id"])

    for end_tie_show in end_tie:
        end_tie_ids.append(end_tie_show["id"])

    shows_intersect = set(start_tie_ids) & set(end_tie_ids)

    if not shows_intersect:
        return None

    show_info = []
    for show_id in shows_intersect:
        info = OrderedDict()
        score_info = retrieve_scoring_info_by_show_id(show_id,
                                                      database_connection)

        if score_info:
            info["id"] = show_id
            info["date"] = score_info["date"]
            info["panelists"] = retrieve_panelists_by_show_id(show_id,
                                                              database_connection)
            info["start"] = score_info["start"]
            info["correct"] = score_info["correct"]
            info["score"] = score_info["score"]
            show_info.append(info)

    return show_info

#endregion
