Class: SportDb::CsvGameReader

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

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(event_key, text) ⇒ CsvGameReader

Returns a new instance of CsvGameReader.



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# File 'lib/sportdb/csv_reader.rb', line 24

def initialize( event_key, text )
  ### fix - fix -fix:
  ##  change event to event_or_event_key !!!!!  - allow event_key as string passed in

  ## todo/fix: how to add opts={} ???
  @event_key         = event_key
  @text              = text
end

Class Method Details

.from_string(event_key, text) ⇒ Object

todo: add from_file and from_zip too



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# File 'lib/sportdb/csv_reader.rb', line 18

def self.from_string( event_key, text )
  ### fix - fix -fix:
  ##  change event to event_or_event_key !!!!!  - allow event_key as string passed in
  self.new( event_key, text )
end

Instance Method Details

#handle_game(date_str, team1_str, team2_str, ft_str, ht_str) ⇒ Object 



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# File 'lib/sportdb/csv_reader.rb', line 87

def handle_game( date_str, team1_str, team2_str, ft_str, ht_str )

  ## todo/fix: make more "efficient"
  ##  - e.g. add new support method for mapping single team/reference - why? why not??
  line = "#{team1_str} - #{team2_str}"
  @team_mapper.map_titles!( line )
  team1_key = @team_mapper.find_key!( line )
  team2_key = @team_mapper.find_key!( line )

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

  if date_str
    date = DateTime.strptime( date_str, '%Y-%m-%d' )   ## (always) use DateTime - why? why not??
    @last_date = date    # keep a reference for later use
  else
    date = @last_date    # no date found; (re)use last seen date
  end

  ##
  ## todo: support for awarded, abadoned, a.e.t, pen. etc. - why?? why not??
  ## 

  if ht_str    ## half time scores
    scoresi_str = ht_str.gsub(/ /, '').split('-')    ## note: remove all (inline) spaces first
    score1i  = scoresi_str[0].to_i
    score2i  = scoresi_str[1].to_i
  else
    score1i  = nil
    score2i  = nil
  end

  if ft_str    ## full time scores
    scores_str = ft_str.gsub(/ /, '').split('-')    ## note: remove all (inline) spaces first
    score1  = scores_str[0].to_i
    score2  = scores_str[1].to_i
  else
    score1  = nil
    score2  = nil
  end
  
  ### todo: cache team lookups in hash? - why? why not??
  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
  game = Game.find_by( round_id: round.id,
                       team1_id: team1.id,
                       team2_id: team2.id )
                        
  game_attribs = {
    score1:     score1,
    score2:     score2,
    score1i:    score1i,
    score2i:    score2i,
    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 )
  
end

#handle_round(round_pos_str) ⇒ Object 



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# File 'lib/sportdb/csv_reader.rb', line 52

def handle_round( round_pos_str )

  round_pos = round_pos_str.to_i

  round_attribs = { }

  round = Round.find_by( event_id: @event.id,
                         pos:      round_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:      round_pos,
      title:    "Round #{round_pos}",
      title2:   nil,
      knockout: false,
      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

#parse_fixtures ⇒ Object 



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# File 'lib/sportdb/csv_reader.rb', line 178

def parse_fixtures

  CSV.parse( @text, headers: true ) do |row|
    puts row.inspect
    
    pp round = row['Round']
    pp date  = row['Date']
    pp team1 = row['Team 1']
    pp team2 = row['Team 2']
    pp ft    = row['FT']
    pp ht    = row['HT']
    
    ## find round by pos
    if round
      handle_round( round )
      handle_game( date, team1, team2, ft, ht )
    else
      fail "round required for import; sorry"
    end
  end

  ###########################
  # 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

#read ⇒ Object 



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# File 'lib/sportdb/csv_reader.rb', line 34

def read
  ## note: assume active activerecord connection
  @event = Event.find_by!( key: @event_key )

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

  @team_mapper = TextUtils::TitleMapper.new( @event.teams, 'team' )

  ## reset cached values
  @patch_round_ids = []

  @last_round    = nil      ## remove last round ?? - always required - why? why not?
  @last_date     = nil      ## remove last date ??  - always required - why? why not?
  
  parse_fixtures   
end