Class: SportDb::RsssfGameReader

Inherits:
Object
  • Object
show all
Includes:
LogUtils::Logging, Models
Defined in:
lib/sportdb/rsssf_reader.rb

Overview

todo: rename to RsssfLeagueMatchReader ( or use league/cup option?) - why? why not??

Constant Summary collapse

RSSSF_FT_REGEX = 
/\b
             (?<score1>\d{1,2})
 -
             (?<score2>\d{1,2})
\b/x
RSSSF_ROUND_REGEX = 
/\b
               (?<round>Round)
\s
               (?<pos>\d{1,3})
\b/x

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(event_or_event_key, text) ⇒ RsssfGameReader

Returns a new instance of RsssfGameReader.



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# File 'lib/sportdb/rsssf_reader.rb', line 26

def initialize( event_or_event_key, text )
  ## todo/fix: how to add opts={} ???
  @event_or_event_key = event_or_event_key
  @text               = text
end

Class Method Details

.from_string(event_or_event_key, text) ⇒ Object

todo: add from_file and from_zip too



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# File 'lib/sportdb/rsssf_reader.rb', line 22

def self.from_string( event_or_event_key, text )
  self.new( event_or_event_key, text )
end

Instance Method Details

#find_rsssf_date!(line, opts = {}) ⇒ Object 



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# File 'lib/sportdb/rsssf_reader.rb', line 85

def find_rsssf_date!( line, opts={} )
  finder = RsssfDateFinder.new
  finder.find!( line, opts )
end

#find_rsssf_round!(line) ⇒ Object 



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# File 'lib/sportdb/rsssf_reader.rb', line 101

def find_rsssf_round!( line )
  ## todo: check if \b works for run on [Apr 13] too ??
  ## todo:  allow multiple spaces after round ??

  m = RSSSF_ROUND_REGEX.match( line )
  if m
    title = m[0]     ## note: title is complete match e.g. Round 1, Round 2, etc.
    pos   = m[:pos].to_i

    logger.debug "   title: >#{title}<, pos: >#{pos}<"
    
    line.sub!( m[0], '[ROUND]' )
  else
    ## fix: add logger.warn no round pos found in line
    title = nil
    pos   = nil
  end
  
  [title,pos]   ## return array; note: [nil,nil] if nothing found
end

#find_rsssf_scores!(line) ⇒ Object 



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# File 'lib/sportdb/rsssf_reader.rb', line 64

def find_rsssf_scores!( line ) 
  # e.g. 1-1 or 0-2 or 3-3
  
  m = RSSSF_FT_REGEX.match( line )
  if m
    score1 = m[:score1].to_i
    score2 = m[:score2].to_i

    logger.debug "   score: >#{score1}-#{score2}<"
    
    line.sub!( m[0], '[SCORE]' )
  else
    score1   = nil
    score2   = nil  
  end

  scores = [score1, score2]
  scores
end

#is_rsssf_round?(line) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sportdb/rsssf_reader.rb', line 97

def is_rsssf_round?( line )
  RSSSF_ROUND_REGEX.match( line ).nil? == false   ## match found if not nil
end

#parse_date_header(line) ⇒ Object 



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# File 'lib/sportdb/rsssf_reader.rb', line 284

def parse_date_header( line )
  # note: returns true if parsed, false if no match
 
  # line with NO teams  plus include date e.g.
  #   [Jun 17]  etc.

  @mapper_teams.map_teams!( line )
  team_keys= @mapper_teams.find_teams!( line )
  team1_key = team_keys[0]
  team2_key = team_keys[1]

  date  = find_rsssf_date!( line, start_at: @event.start_at )

  if date && team1_key.nil? && team2_key.nil?
    logger.debug( "date header line found: >#{line}<")
    logger.debug( "    date: #{date}")
    
    @last_date = date   # keep a reference for later use
    return true
  else
    return false
  end
end

#parse_fixtures(reader) ⇒ Object 



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# File 'lib/sportdb/rsssf_reader.rb', line 310

def parse_fixtures( reader )
    
  reader.each_line do |line|

    if is_rsssf_round?( line )
      parse_round_header( line )
    elsif try_parse_game( line )
      # do nothing here
    elsif try_parse_date_header( line )
      # do nothing here
    else
      logger.info "skipping line (no match found): >#{line}<"
    end
  end # lines.each

  ###########################
  # backtrack and patch round dates (start_at/end_at)

  unless @patch_round_ids.empty?
    ###
    # note: use uniq - to allow multiple round headers (possible?)

    Round.find( @patch_round_ids.uniq ).each do |r|
      logger.debug "patch round start_at/end_at date for #{r.title}:"

      ## note:
      ## will add "scope" pos first e.g
      #
      ## SELECT "games".* FROM "games"  WHERE "games"."round_id" = ?
      # ORDER BY pos, play_at asc  [["round_id", 7]]
      #   thus will NOT order by play_at but by pos first!!!
      # =>
      #  need to unscope pos!!! or use unordered_games - games_by_play_at_date etc.??
      #   thus use reorder()!!! - not just order('play_at asc')

      games = r.games.reorder( 'play_at asc' ).all

      ## skip rounds w/ no games

      ## todo/check/fix: what's the best way for checking assoc w/ 0 recs?
      next if games.size == 0

      # note: make sure start_at/end_at is date only (e.g. use play_at.to_date)
      #   sqlite3 saves datetime in date field as datetime, for example (will break date compares later!)

      round_attribs = {
        start_at: games[0].play_at.to_date,   # use games.first ?
        end_at:   games[-1].play_at.to_date  # use games.last ? why? why not?
      }

      logger.debug round_attribs.to_json
      r.update_attributes!( round_attribs )
    end
  end
end

#parse_game(line) ⇒ Object 



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# File 'lib/sportdb/rsssf_reader.rb', line 194

def parse_game( line )
  logger.debug "parsing game (fixture) line: >#{line}<"

  @mapper_teams.map_teams!( line )
  team_keys = @mapper_teams.find_teams!( line ) 
  team1_key = team_keys[0]
  team2_key = team_keys[1]

  ## note: if we do NOT find two teams; return false - no match found
  if team1_key.nil? || team2_key.nil?
    logger.debug "  no game match (two teams required) found for line: >#{line}<"
    return false
  end

  date      = find_rsssf_date!( line, start_at: @event.start_at )

  ###
  # check if date found?
  #   note: ruby falsey is nil & false only (not 0 or empty array etc.)
  if date
    @last_date = date    # keep a reference for later use
  else
    date = @last_date    # no date found; (re)use last seen date
  end

  scores = find_rsssf_scores!( line )

  logger.debug "  line: >#{line}<"


  ### todo: cache team lookups in hash?
  team1 = Team.find_by!( key: team1_key )
  team2 = Team.find_by!( key: team2_key )

  round = @last_round

  ### check if games exists
  ##  with this teams in this round if yes only update
  ##
  ##  todo: add replay flag (true/false)    !!!!!!!!
  ##    allows same match fixture in round  !!!!!!!!
  game = Game.find_by( round_id: round.id,
                       team1_id: team1.id,
                       team2_id: team2.id )
                        
  game_attribs = {
    score1:    scores[0],
    score2:    scores[1],
    score1et:  scores[2],
    score2et:  scores[3],
    score1p:   scores[4],
    score2p:   scores[5],
    play_at:    date,
    play_at_v2: nil,
    postponed:  false,
    knockout:   false,  ## round.knockout, ## note: for now always use knockout flag from round - why? why not?? 
    ground_id: nil,
    group_id:  nil
  }

  if game.present?
    logger.debug "update game #{game.id}:"
  else
    logger.debug "create game:"
    game = Game.new

    ## Note: use round.games.count for pos
    ##  lets us add games out of order if later needed
    more_game_attribs = {
      round_id: round.id,
      team1_id: team1.id,
      team2_id: team2.id,
      pos:      round.games.count+1
    }
    game_attribs = game_attribs.merge( more_game_attribs )
  end

  logger.debug game_attribs.to_json
  game.update_attributes!( game_attribs )
  
  return true   # game match found
end

#parse_round_header(line) ⇒ Object 



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# File 'lib/sportdb/rsssf_reader.rb', line 123

def parse_round_header( line )

  ## todo/fix:
  ##   simplify - for now round number always required
  #      e.g. no auto-calculation supported here
  #       fail if round found w/o number/pos !!!
  #
  #  also remove knockout flag for now (set to always false for now)
  
  logger.debug "parsing round header line: >#{line}<"

  ## check for date in header first e.g. Round 36 [Jul 20]  !!
  ##   avoid "conflict" with getting "wrong" round number from date etc.
  date = find_rsssf_date!( line, start_at: @event.start_at )
  if date
    @last_date = date
  end
  
  title, pos = find_rsssf_round!( line )

  ## check if pos available; if not auto-number/calculate
  if pos.nil?
      logger.error( "  no round pos found in line >#{line}<; round pos required in rsssf; sorry" )
      fail( "round pos required in rsssf; sorry")
  end

  logger.debug "  line: >#{line}<"
      
  ## Note: dummy/placeholder start_at, end_at date
  ##  replace/patch after adding all games for round

  round_attribs = {
    title:    title,
    title2:   nil,
    knockout: false
  }

  round = Round.find_by( event_id: @event.id,
                         pos:      pos )

  if round.present?
    logger.debug "update round #{round.id}:"
  else
    logger.debug "create round:"
    round = Round.new
        
    round_attribs = round_attribs.merge( {
      event_id: @event.id,
      pos:      pos,
      ##  todo: add num e.g. num == pos for round 1, round 2, etc. - why? why not??
      start_at: Date.parse('1911-11-11'),
      end_at:   Date.parse('1911-11-11')
    })
  end

  logger.debug round_attribs.to_json
 
  round.update_attributes!( round_attribs )

  ### store list of round ids for patching start_at/end_at at the end
  @patch_round_ids << round.id
  @last_round = round     ## keep track of last seen round for matches that follow etc.
end

#read ⇒ Object 



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# File 'lib/sportdb/rsssf_reader.rb', line 33

def read
  ## note: assume active activerecord connection
  
  if @event_or_event_key.kind_of?( Event )
    @event= @event_or_event_key
  else   ## assume string
    @event = Event.find_by!( key: @event_or_event_key )
  end

  logger.debug "Event #{@event.key} >#{@event.title}<"

  @mapper_teams = TeamMapper.new( @event.teams )

  ## reset cached values
  @patch_round_ids = []

  @last_round    = nil
  @last_date     = nil
  
  reader = LineReader.from_string( @text )
  parse_fixtures( reader )    
end

#try_parse_date_header(line) ⇒ Object 



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# File 'lib/sportdb/rsssf_reader.rb', line 278

def try_parse_date_header( line )
  # note: clone line; for possible test do NOT modify in place for now
  # note: returns true if parsed, false if no match
  parse_date_header( line.dup )
end

#try_parse_game(line) ⇒ Object 



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# File 'lib/sportdb/rsssf_reader.rb', line 188

def try_parse_game( line )
  # note: clone line; for possible test do NOT modify in place for now
  # note: returns true if parsed, false if no match
  parse_game( line.dup )
end