Module: Footballdata

Defined in:
lib/footballdata.rb,
lib/footballdata/mods.rb,
lib/footballdata/stat.rb,
lib/footballdata/teams.rb,
lib/footballdata/convert.rb,
lib/footballdata/leagues.rb,
lib/footballdata/download.rb,
lib/footballdata/prettyprint.rb,
lib/footballdata/convert-score.rb

Defined Under Namespace

Classes: Configuration, Metal, Stat

Constant Summary collapse

MODS = 
{
  'br.1' => {
     'América FC' => 'América Mineiro',  # in year 2018 ??
  },
  'pt.1' => {
    'Vitória SC' => 'Vitória Guimarães',  ## avoid easy confusion with Vitória SC <=> Vitória FC
    'Vitória FC' => 'Vitória Setúbal',
  },
}
STAGES =

map round-like to higher-level stages

{
  'REGULAR_SEASON'          => ['Regular'],

  'QUALIFICATION'           => ['Qualifying'],
  'PRELIMINARY_ROUND'       => ['Qualifying', 'Preliminary Round' ],
  'PRELIMINARY_SEMI_FINALS' => ['Qualifying', 'Preliminary Semifinals' ],
  'PRELIMINARY_FINAL'       => ['Qualifying', 'Preliminary Final' ],
  '1ST_QUALIFYING_ROUND'    => ['Qualifying', 'Round 1' ],
  '2ND_QUALIFYING_ROUND'    => ['Qualifying', 'Round 2' ],
  '3RD_QUALIFYING_ROUND'    => ['Qualifying', 'Round 3' ],
  'QUALIFICATION_ROUND_1'   => ['Qualifying', 'Round 1' ],
  'QUALIFICATION_ROUND_2'   => ['Qualifying', 'Round 2' ],
  'QUALIFICATION_ROUND_3'   => ['Qualifying', 'Round 3' ],
  'ROUND_1'                 => ['Qualifying', 'Round 1'],    ##  use Qual. Round 1 - why? why not?
  'ROUND_2'                 => ['Qualifying', 'Round 2'],
  'ROUND_3'                 => ['Qualifying', 'Round 3'],
  'PLAY_OFF_ROUND'          => ['Qualifying', 'Playoff Round'],
  'PLAYOFF_ROUND_1'         => ['Qualifying', 'Playoff Round 1'],

  'LEAGUE_STAGE'            => ['League'],
  'GROUP_STAGE'             => ['Group'],
  'PLAYOFFS'                => ['Playoffs'],

  'ROUND_OF_16'             => ['Finals',     'Round of 16'],
  'LAST_16'                 => ['Finals',     'Round of 16'],  ## use Last 16 - why? why not?
  'QUARTER_FINALS'          => ['Finals',     'Quarterfinals'],
  'SEMI_FINALS'             => ['Finals',     'Semifinals'],
  'THIRD_PLACE'             => ['Finals',     'Third place play-off'],
  'FINAL'                   => ['Finals',     'Final'],
}
MAX_HEADERS = 
[
  'Stage',    # 0
  'Group',    # 1
  'Matchday', # 2
  'Date',     # 3
  'Time',     # 4
  'Timezone',   # 5 ## move back column - why? why not?
  'Team 1',     # 6
  'FT',         # 7
  'HT',         # 8
  'Team 2',     # 9
  'ET',         # 10     # extra: incl. extra time
  'P',          # 11     # extra: incl. penalties
  'Comments',   # 12
  'Status',     # 13 / -2  # e.g.
  'UTC',        # 14 / -1 # date utc
]
MIN_HEADERS =

always keep even if all empty

[   ## always keep even if all empty
'Date',
'Team 1',
'FT',
'Team 2'
]

Class Method Summary collapse

Class Method Details

.assert(cond, msg) ⇒ Object 



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# File 'lib/footballdata/prettyprint.rb', line 4

def self.assert( cond, msg )
  if cond
    # do nothing
  else
    puts "!!! assert failed - #{msg}"
    exit 1
  end
end

.config ⇒ Object 



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# File 'lib/footballdata.rb', line 23

def self.config()  @config ||= Configuration.new;  end

.configure {|config| ... } ⇒ Object

lets you use

Footballdata.configure do |config|
   config.convert.out_dir = './o'
end

Yields:



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# File 'lib/footballdata.rb', line 22

def self.configure()  yield( config ); end

.convert(league:, season:) ⇒ Object 



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# File 'lib/footballdata/convert.rb', line 40

def self.convert( league:, season: )

  season = Season( season )   ## cast (ensure) season class (NOT string, integer, etc.)

  league_code = find_league!( league )

  matches_url = Metal.competition_matches_url( league_code, season.start_year )
  teams_url   = Metal.competition_teams_url(   league_code, season.start_year )

  data           = Webcache.read_json( matches_url )
  data_teams     = Webcache.read_json( teams_url )



  ## check for time zone
  tz  = find_zone!( league: league,
                    season: season )
  pp tz

  ## build a (reverse) team lookup by name
  puts "#{data_teams['teams'].size} teams"

  teams_by_name = data_teams['teams'].reduce( {} ) do |h,rec|
     h[ rec['name'] ] = rec
     h
  end

  ## pp teams_by_name.keys



mods = MODS[ league.downcase ] || {}


recs = []

teams = Hash.new( 0 )


# stat  =  Stat.new

  ## track stage, match status et
  stats = { 'status'    => Hash.new(0),
            'stage'     => Hash.new(0),
           }




matches = data[ 'matches']
matches.each do |m|
  # stat.update( m )

  ## use ? or N.N. or ? for nil  - why? why not?
  team1 = m['homeTeam']['name'] || 'N.N.'
  team2 = m['awayTeam']['name'] || 'N.N.'

  score = m['score']



  group = m['group']
  ## GROUP_A
  ##  shorten group to A|B|C etc.
  if group && group =~ /^(GROUP_|Group )/
        group =  group.sub( /^(GROUP_|Group )/, '' )
  else
      if group.nil?
          group = ''
      else
          puts "!! WARN - group defined with NON GROUP!? >#{group}< reset to empty"
          puts "            and matchday to >#{m['matchday']}<"
          ## reset group to empty
          group = ''
      end
  end


  stage_key = m['stage']
  stats['stage'][ stage_key ] += 1   ## track stage counts


  stage, stage_round =  if group.empty?
                          ## map stage to stage + round
                          STAGES[ stage_key ]
                        else
                          ## if group defined ignore stage
                          ##   hard-core always to group for now
                           if stage_key != 'GROUP_STAGE'
                              puts "!! WARN - group defined BUT stage set to >#{stage_key}<"
                              puts "            and matchday to >#{m['matchday']}<"
                           end
                          ['Group', nil]
                        end

  if stage.nil?
      puts "!! ERROR - no stage mapping found for stage >#{stage_key}<"
      exit 1
  end

  matchday_num = m['matchday']
  matchday_num = nil   if matchday_num == 0   ## change 0 to nil (empty) too

  if stage_round.nil?  ## e.g. Regular, League, Group, Playoffs
     ## keep/assume matchday number is matchday .e.g
     ##   matchday 1, 2 etc.
     matchday = matchday_num.to_s
  else
    ## note - if matchday/round defined, use it
    ##        note - ignore possible leg in matchday for now
    matchday =  stage_round
  end


    teams[ team1 ] += 1
    teams[ team2 ] += 1

    ### mods - rename club names
    unless mods.nil? || mods.empty?
      team1 = mods[ team1 ]      if mods[ team1 ]
      team2 = mods[ team2 ]      if mods[ team2 ]
    end


   ## auto-fix copa.l 2024
   ##  !! ERROR: unsupported match status >IN_PLAY< - sorry:
   if m['status'] == 'IN_PLAY' &&
      team1 == 'Club Aurora' && team2 == 'FBC Melgar'
        m['status'] = 'FINISHED'
   end


    comments = ''
    ft       = ''
    ht       = ''
    et       = ''
    pen      = ''

    stats['status'][m['status']]  += 1  ## track status counts

    case m['status']
    when 'SCHEDULED', 'TIMED'   ## , 'IN_PLAY'
      ft = ''
      ht = ''
    when 'FINISHED'
      ft, ht, et, pen = convert_score( score )
    when 'AWARDED'   # AWARDED
      assert( score['duration'] == 'REGULAR', 'score.duration REGULAR expected' )
      ft = "#{score['fullTime']['home']}-#{score['fullTime']['away']}"
      ft << ' (*)'
      ht = ''
      comments = 'awarded'
    when 'CANCELLED'
      ## note cancelled might have scores!! -- add/fix later!!!
      ##   ht only or ft+ht!!!  (see fr 2021/22)
      ft = '(*)'
      ht = ''
      comments  = 'canceled'   ## us eng ? -> canceled, british eng. cancelled ?
    when 'POSTPONED'
      ft = '(*)'
      ht = ''
      comments = 'postponed'
    else
      puts "!! ERROR: unsupported match status >#{m['status']}< - sorry:"
      pp m
      exit 1
    end



    utc = UTC.strptime( m['utcDate'], '%Y-%m-%dT%H:%M:%SZ' )
    assert( utc.strftime( '%Y-%m-%dT%H:%M:%SZ' ) == m['utcDate'], 'utc time mismatch' )


    ## do NOT add time if status is SCHEDULED
    ##                        or POSTPONED for now
    ##   otherwise assume time always present - why? why not?
    ##
    ## assume NOT valid utc time if 00:00
    if utc.hour == 0 && utc.min == 0 &&
       ['SCHEDULED','POSTPONED'].include?( m['status'] )
       date     = utc.strftime( '%Y-%m-%d' )
       time     = ''
       timezone = ''
    else
      local    = tz.to_local( utc )
      date     = local.strftime( '%Y-%m-%d' )
      time     = local.strftime( '%H:%M' )

      ## pretty print timezone
      ###   todo/fix - bundle into fmt_timezone method or such for reuse
      tz_abbr   =  local.strftime( '%Z' )   ## e.g. EEST or if not available +03 or such
      tz_offset =  local.strftime( '%z' )   ##  e.g. +0300

      timezone =  if tz_abbr =~ /^[+-][0-9]+$/   ## only digits (no abbrev.)
                     tz_offset
                  else
                      "#{tz_abbr}/#{tz_offset}"
                  end
    end


    recs << [stage,
             group,
             matchday,
             date,
             time,
             timezone,
             team1,
             ft,
             ht,
             team2,
             et,
             pen,
             comments,
             ## add more columns e.g. utc date, status
             m['status'],  # e.g. FINISHED, TIMED, etc.
             m['utcDate'],
            ]
end # each match



## note: get season from first match
##   assert - all other matches include the same season
## e.g.
# "season": {
#  "id": 154,
#  "startDate": "2018-08-03",
#  "endDate": "2019-05-05",
#  "currentMatchday": 46
# }

start_date = Date.strptime( matches[0]['season']['startDate'], '%Y-%m-%d' )
end_date   = Date.strptime( matches[0]['season']['endDate'],   '%Y-%m-%d' )

dates = "#{start_date.strftime('%b %-d')} - #{end_date.strftime('%b %-d')}"

buf = ''
buf << "#{season.key} (#{dates}) - "
buf << "#{teams.keys.size} teams, "
buf << "#{recs.size} matches"
# buf << "#{stat[:regular_season][:goals]} goals"
buf << "\n"

puts buf


=begin
   ## note: warn if stage is greater one and not regular season!!
   File.open( './errors.txt' , 'a:utf-8' ) do |f|
     if stat[:all][:stage].keys != ['REGULAR_SEASON']
      f.write "!! WARN - league: #{league}, season: #{season.key} includes non-regular stage(s):\n"
      f.write "   #{stat[:all][:stage].keys.inspect}\n"
     end
   end
=end


   File.open( './logs.txt', 'a:utf-8' ) do |f|
     f.write "====  #{league} #{season.key}  =============\n"
     f.write "  #{stats.inspect}\n"
   end

=begin
    f.write "\n================================\n"
     f.write "====  #{league}  =============\n"
     f.write buf
     f.write "  match status: #{stat[:regular_season][:status].inspect}\n"
     f.write "  match duration: #{stat[:regular_season][:duration].inspect}\n"

     f.write "#{teams.keys.size} teams:\n"
     teams.each do |name, count|
        rec = teams_by_name[ name ]
        f.write "  #{count}x  #{name}"
        if rec
          f.write " | #{rec['shortName']} "   if name != rec['shortName']
          f.write " › #{rec['area']['name']}"
          f.write "  - #{rec['address']}"
        else
          puts "!! ERROR - no team record found in teams.json for >#{name}<"
          exit 1
        end
        f.write "\n"
     end
   end
=end


##
##  sort buy utc date ??? - why? why not?

# recs = recs.sort { |l,r| l[1] <=> r[1] }


## reformat date / beautify e.g. Sat Aug 7 1993
recs = recs.map do |rec|
           rec[3] = Date.strptime( rec[3], '%Y-%m-%d' ).strftime( '%a %b %-d %Y' )
           rec
       end

## pp recs

## check if all status colums
###  are FINISHED
###   if yes, set all to empty (for vacuum)

if stats['status'].keys.size == 1 && stats['status'].keys[0] == 'FINISHED'
  recs = recs.map { |rec| rec[-2] = ''; rec }
end

if stats['stage'].keys.size == 1 && stats['stage'].keys[0] == 'REGULAR_SEASON'
  recs = recs.map { |rec| rec[0] = ''; rec }
end


recs, headers = vacuum( recs )




## note: change season_key from 2019/20 to 2019-20  (for path/directory!!!!)
  write_csv( "#{config.convert.out_dir}/#{season.to_path}/#{league.downcase}.csv",
                             recs,
                             headers: headers )


teams.each do |name, count|
  rec = teams_by_name[ name ]
  print "  #{count}x  "
  print name
  if rec
    print " | #{rec['shortName']} "   if name != rec['shortName']
    print " › #{rec['area']['name']}"
    print "  - #{rec['address']}"
  else
    if name == 'N.N.'
      ## ignore missing record
    else
      puts "!! ERROR  - no team record found in teams.json for #{name}"
      exit 1
    end
  end
  print "\n"
end

## pp stat
end

.convert_score(score) ⇒ Object 



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# File 'lib/footballdata/convert-score.rb', line 4

def self.convert_score( score )
  ## duration: REGULAR  · PENALTY_SHOOTOUT  · EXTRA_TIME
  ft, ht, et, pen = ["","","",""]

  if score['duration'] == 'REGULAR'
    ft  = "#{score['fullTime']['home']}-#{score['fullTime']['away']}"
    ht  = "#{score['halfTime']['home']}-#{score['halfTime']['away']}"
  elsif score['duration'] == 'EXTRA_TIME'
    et  =  "#{score['regularTime']['home']+score['extraTime']['home']}"
    et << "-"
    et << "#{score['regularTime']['away']+score['extraTime']['away']}"

    ft =  "#{score['regularTime']['home']}-#{score['regularTime']['away']}"
    ht =  "#{score['halfTime']['home']}-#{score['halfTime']['away']}"
  elsif score['duration'] == 'PENALTY_SHOOTOUT'
    if score['extraTime']
      ## quick & dirty hack - calc et via regulartime+extratime
      pen = "#{score['penalties']['home']}-#{score['penalties']['away']}"
      et  = "#{score['regularTime']['home']+score['extraTime']['home']}"
      et << "-"
      et << "#{score['regularTime']['away']+score['extraTime']['away']}"

      ft = "#{score['regularTime']['home']}-#{score['regularTime']['away']}"
      ht = "#{score['halfTime']['home']}-#{score['halfTime']['away']}"
    else  ### south american-style (no extra time)
        ## quick & dirty hacke - calc ft via fullTime-penalties
        pen =  "#{score['penalties']['home']}-#{score['penalties']['away']}"
        ft  =  "#{score['fullTime']['home']-score['penalties']['home']}"
        ft << "-"
        ft << "#{score['fullTime']['away']-score['penalties']['away']}"
        ht  = "#{score['halfTime']['home']}-#{score['halfTime']['away']}"
    end
  else
    puts "!! unknown score duration:"
    pp score
    exit 1
  end

  [ft,ht,et,pen]
end

.export_teams(league:, season:) ⇒ Object 



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# File 'lib/footballdata/teams.rb', line 8

def self.export_teams( league:, season: )

    season      = Season( season )   ## cast (ensure) season class (NOT string, integer, etc.)
    league_code = find_league!( league )

    teams_url = Metal.competition_teams_url( league_code,
                                             season.start_year )
    data_teams = Webcache.read_json( teams_url )

    ## build a (reverse) team lookup by name
    puts "#{data_teams['teams'].size} teams"



    clubs = {}   ## by country

    data_teams['teams'].each do |rec|

        buf = String.new  ### use for string buffer (or String.new('') - why? why not?
        buf << "#{rec['name']}"
        buf << ", #{rec['founded']}"  if rec['founded']
        if rec['venue']
          buf << ", @ #{rec['venue']}"
          # buf << "  # #{rec['area']['name']}"
        end
        buf << "\n"

        alt_names = String.new
        alt_names << " | #{rec['shortName']}"  if rec['shortName'] &&
                                                  rec['shortName'] != rec['name'] &&
                                                  rec['shortName'] != rec['tla']

        alt_names << " | #{rec['tla']}"        if rec['tla'] &&
                                                  rec['tla'] != rec['name']

        if alt_names.size > 0
          buf << " "
          buf << alt_names
          buf << "\n"
        end

        ## clean null in address (or keep nulls) - why? why not?
        ##  e.g. null Rionegro null
        ##       Calle 104 No. 13a - 32 Bogotá null

        buf << "  address: #{rec['address'].gsub( /\bnull\b/, '')}"
        buf << "\n"
        buf << "  web:     #{rec['website']}"
        buf << "\n"
        buf << "  colors:  #{rec['clubColors']}"
        buf << "\n"

        country = rec['area']['name']
        ary = clubs[ country] ||= []
        ary << buf
    end
    # puts buf

    ## pp clubs


    buf = String.new

    if clubs.size > 1
      clubs.each do |country, ary|
        buf << "#  #{country} - #{ary.size} clubs\n"
      end
      buf << "\n"
    end

    clubs.each do |country, ary|
      buf << "= #{country}    # #{ary.size} clubs\n\n"
      buf << ary.join( "\n" )
      buf << "\n\n"
    end

    path = "#{config.convert.out_dir}/#{season.to_path}/#{league.downcase}.clubs.txt"
    write_text( path, buf )
end

.find_league!(league) ⇒ Object 



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# File 'lib/footballdata/leagues.rb', line 3

def self.find_league!( league )
   @leagues ||= begin
                   recs = read_csv( "#{FootballdataApi.root}/config/leagues_tier1.csv" )
                   leagues = {}
                   recs.each do |rec|
                      leagues[ rec['key'] ] = rec['code']
                   end
                   leagues
                end

   key = league.downcase
   code =  @leagues[ key ]
   if code.nil?
      puts "!! ERROR - no code/mapping found for league >#{league}<"
      puts "     mappings include:"
      pp @leagues
      exit 1
   end
   code
end

.fmt_competition(rec) ⇒ Object 



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# File 'lib/footballdata/prettyprint.rb', line 13

def self.fmt_competition( rec )
   buf = String.new

   buf << "==> "
   buf << "#{rec['competition']['name']} (#{rec['competition']['code']}) -- "
   buf << "#{rec['area']['name']} (#{rec['area']['code']}) "
   buf << "#{rec['competition']['type']} "
   buf << "#{rec['season']['startDate']} - #{rec['season']['endDate']} "
   buf << "@ #{rec['season']['currentMatchday']}"
   buf << "\n"

   buf
end

.fmt_count(h, sort: false) ⇒ Object 



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# File 'lib/footballdata/prettyprint.rb', line 162

def self.fmt_count( h, sort: false )
    pairs = h.to_a
    if sort
        pairs = pairs.sort do |l,r|
                               res = r[1] <=> l[1]  ## bigger number first
                               res = l[0] <=> r[0] if res == 0
                               res
                            end
    end
    pairs = pairs.map { |name,count| "#{name} (#{count})" }
    pairs.join( ' · ' )
end

.fmt_match(rec) ⇒ Object 



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# File 'lib/footballdata/prettyprint.rb', line 27

def self.fmt_match( rec )
   buf = String.new

    ## -- todo - make sure / assert it's always utc - how???
    ## utc   = ## tz_utc.strptime( m['utcDate'], '%Y-%m-%dT%H:%M:%SZ' )
    ##  note:  DateTime.strptime  is supposed to be unaware of timezones!!!
    ##            use to parse utc
    utc = DateTime.strptime( rec['utcDate'], '%Y-%m-%dT%H:%M:%SZ' ).to_time.utc
    assert( utc.strftime( '%Y-%m-%dT%H:%M:%SZ' ) == rec['utcDate'], 'utc time mismatch' )

    status = rec['status']
     assert( %w[SCHEDULED
                TIMED
                FINISHED
                POSTPONED
                AWARDED
                IN_PLAY
               ].include?( status ), "unknown status - #{status}" )

     buf << '%-10s' % status
     buf << utc.strftime( '%a %b %d %Y %H:%M')
     buf << ' '
     # pp rec['utcDate']

     team1 = rec['homeTeam']['name'] ?
                  "#{rec['homeTeam']['name']} (#{rec['homeTeam']['tla']})" : '?'
     team2 = rec['awayTeam']['name'] ?
                  "#{rec['awayTeam']['name']} (#{rec['awayTeam']['tla']})" : '?'
     buf << '%22s' % team1
     buf << " - "
     buf << '%-22s' % team2
     buf << "   "

     stage = rec['stage']
     group = rec['group']

     buf << "#{rec['matchday']} - #{stage} "
     buf << "/ #{group}  "  if group
     buf << "\n"

     buf << "  "
     buf << '%-20s' % rec['score']['duration']
     buf << ' '*24

     duration = rec['score']['duration']
     assert( %w[REGULAR
                EXTRA_TIME
                PENALTY_SHOOTOUT
               ].include?( duration ), "unknown duration - #{duration}" )


     ft, ht, et, pen = convert_score( rec['score'] )
     score = String.new
     if !pen.empty?
       if et.empty? ### south american-style (no extra time)
         score << "#{pen} pen. "
         score << "(#{ft}, #{ht})"
       else
         score << "#{pen} pen. "
         score << "#{et} a.e.t. "
         score << "(#{ft}, #{ht})"
      end
     elsif !et.empty?
       score << "#{et} a.e.t. "
       score << "(#{ft}, #{ht})"
     else
      if !ht.empty?
         score << "#{ft} (#{ht})"
      else
         score << "#{ft}"
      end
     end

     buf << score
     buf << "\n"
     buf
end

.matches(league:, season:) ⇒ Object 



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# File 'lib/footballdata/download.rb', line 17

def self.matches( league:, season: )
  season = Season( season )   ## cast (ensure) season class (NOT string, integer, etc.)

  league_code = find_league!( league )
  puts "  mapping league >#{league}< to >#{league_code}<"
  Metal.matches( league_code, season.start_year )
end

.pp_matches(data) ⇒ Object 



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# File 'lib/footballdata/prettyprint.rb', line 106

def self.pp_matches( data )

  ## track match status and score duration
  stats = { 'status'    => Hash.new(0),
            'duration'  => Hash.new(0),
            'stage'     => Hash.new(0),
            'group'     => Hash.new(0),
           }

  first = Date.strptime( data['resultSet']['first'], '%Y-%m-%d' )
  last  = Date.strptime( data['resultSet']['last'], '%Y-%m-%d' )

  diff = (last - first).to_i  # note - returns rational number (e.g. 30/1)


  print "==> #{data['competition']['name']}, "
  print "#{first.strftime('%a %b %d %Y')} - #{last.strftime('%a %b %d %Y')}"
  print " (#{diff}d)"
  print "\n"

  data['matches'].each do |rec|

    print fmt_match( rec )

    ## track stats
    status = rec['status']
    stats['status'][status] += 1

    stage = rec['stage']
    stats['stage'][stage] += 1

     group = rec['group']
     stats['group'][group] += 1  if group

     duration = rec['score']['duration']
     stats['duration'][duration] += 1
  end

  print "   #{data['resultSet']['played']}/#{data['resultSet']['count']} matches"
  print "\n"

  print "     status (#{stats['status'].size}): "
  print  fmt_count( stats['status'], sort: true )
  print "\n"
  print "     duration (#{stats['duration'].size}): "
  print  fmt_count( stats['duration'], sort: true )
  print "\n"
  print "     stage (#{stats['stage'].size}): "
  print   fmt_count( stats['stage'] )
  print "\n"
  print "     group (#{stats['group'].size}): "
  print   fmt_count( stats['group'] )
  print "\n"
end

.schedule(league:, season:) ⇒ Object

porcelain “api”



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# File 'lib/footballdata/download.rb', line 6

def self.schedule( league:, season: )
  season = Season( season )   ## cast (ensure) season class (NOT string, integer, etc.)

  league_code = find_league!( league )
  puts "  mapping league >#{league}< to >#{league_code}<"

  Metal.teams(   league_code, season.start_year )
  Metal.matches( league_code, season.start_year )
end

.teams(league:, season:) ⇒ Object 



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# File 'lib/footballdata/download.rb', line 26

def self.teams( league:, season: )
  season = Season( season )   ## cast (ensure) season class (NOT string, integer, etc.)

  league_code = find_league!( league )
  puts "  mapping league >#{league}< to >#{league_code}<"
  Metal.teams(   league_code, season.start_year )
end

.vacuum(rows, headers: MAX_HEADERS, fixed_headers: MIN_HEADERS) ⇒ Object 



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# File 'lib/footballdata/convert.rb', line 418

def self.vacuum( rows, headers: MAX_HEADERS, fixed_headers: MIN_HEADERS )
  ## check for unused columns and strip/remove
  counter = Array.new( MAX_HEADERS.size, 0 )
  rows.each do |row|
     row.each_with_index do |col, idx|
       counter[idx] += 1  unless col.nil? || col.empty?
     end
  end

  ## pp counter

  ## check empty columns
  headers       = []
  indices       = []
  empty_headers = []
  empty_indices = []

  counter.each_with_index do |num, idx|
     header = MAX_HEADERS[ idx ]
     if num > 0 || (num == 0 && fixed_headers.include?( header ))
       headers << header
       indices << idx
     else
       empty_headers << header
       empty_indices << idx
     end
  end

  if empty_indices.size > 0
    rows = rows.map do |row|
             row_vacuumed = []
             row.each_with_index do |col, idx|
               ## todo/fix: use values or such??
               row_vacuumed << col   unless empty_indices.include?( idx )
             end
             row_vacuumed
         end
    end

  [rows, headers]
end