module Gtn::Contributors

# File _plugins/gtn/contributors.rb, line 129
def self._load_file(site, category)
  if site.nil?
    Jekyll.logger.warn "[GTN/Contributor] Loading #{category} from disk, this access could be improved"
    File.open("_data/#{category}.yml", 'r') { |f| YAML.safe_load(f) }
  else
    site.data[category]
  end
end

# File _plugins/gtn/contributors.rb, line 146
def self.fetch(site, c, warn: false)
  if _load_file(site, 'contributors').key?(c)
    return ['contributor', site.data['contributors'][c]]
  elsif _load_file(site, 'organisations').key?(c)
    return ['organisation', site.data['organisations'][c]]
  elsif _load_file(site, 'grants').key?(c)
    return ['grant', site.data['grants'][c]]
  else
    if ! warn
      if ! @HAS_WARNED_ON.include?(c)
        Jekyll.logger.warn "Contributor #{c} not found"
        @HAS_WARNED_ON.push(c)
      end
    end
  end

  ['contributor', { 'name' => c }]
end

# File _plugins/gtn/contributors.rb, line 172
def self.fetch_contributor(site, c)
  fetch(site, c)[1]
end

# File _plugins/gtn/contributors.rb, line 226
def self.fetch_funding_url(contributor)
  return contributor['funding_id'] if !contributor.key?('funding_database')

  case contributor['funding_database']
  when 'cordis'
    "https://cordis.europa.eu/project/id/#{contributor['funding_id']}"
  when 'erasmusplus'
    "https://erasmus-plus.ec.europa.eu/projects/search/details/#{contributor['funding_id']}"
  when 'ukri'
    "https://gtr.ukri.org/projects?ref=#{contributor['funding_id']}"
  when 'highergov'
    "https://www.highergov.com/contract/#{contributor['funding_id']}/"
  when 'dfg'
    "https://gepris-extern.dfg.de/gepris/projekt/#{contributor['funding_id']}?language=en"
  else
    Jekyll.logger.error "Unknown funding system #{contributor['funding_database']}. Please let us know so we can add support for it!"
    'ERROR'
  end
end

# File _plugins/gtn/contributors.rb, line 183
def self.fetch_name(site, c, warn: false)
  fetch(site, c, warn: warn)[1].fetch('name', c)
end

# File _plugins/gtn/contributors.rb, line 118
def self.get_all_funding(site, data)
  if data.key?('contributions') && data['contributions'].key?('funding')
    # The ones specifically in the Grants table
    data['contributions']['funding']
  else
    []
  end
end

# File _plugins/gtn/contributors.rb, line 33
def self.get_authors(data)
  if data.key?('contributors')
    data['contributors'] || []
  elsif data.key?('contributions')
    data['contributions']['authorship'] || []
  else
    []
  end
end

# File _plugins/gtn/contributors.rb, line 17
def self.get_contributors(data)
  if data.key?('contributors')
    data['contributors']
  elsif data.key?('contributions')
    data['contributions'].values.flatten
  else
    []
  end
end

# File _plugins/gtn/contributors.rb, line 96
def self.get_funders(site, data)
  self.get_all_funding(site, data).reject{ |f| site.data['grants'].key?(f) }
end

# File _plugins/gtn/contributors.rb, line 107
def self.get_grants(site, data)
  self.get_all_funding(site, data).select{ |f| site.data['grants'].key?(f) }
end

# File _plugins/gtn/contributors.rb, line 63
def self.get_instructors(data)
  if data.key?('contributions') && data['contributions'].key?('instructors')
    data['contributions']['instructors']
  else
    []
  end
end

# File _plugins/gtn/contributors.rb, line 77
def self.get_non_authors(material)
  if material.key?('contributors')
    []
  elsif material.key?('contributions')
    material['contributions']
      .reject { |k| k == 'funding' }
      .reject { |k| k == 'authorship' }
      .values.flatten.uniq
  else
    []
  end
end

# File _plugins/gtn/contributors.rb, line 49
def self.get_organisers(data)
  if data.key?('contributions') && data['contributions'].key?('organisers')
    data['contributions']['organisers']
  else
    []
  end
end

# File _plugins/gtn/contributors.rb, line 216
def self.grant?(site, c)
  site.data['grants'].key?(c)
end

# File _plugins/gtn/contributors.rb, line 193
def self.list(site)
  site.data['contributors']
      .merge(site.data['grants'])
      .merge(site.data['organisations'])
      .reject { |c| c['halloffame'] == 'no' }
end

# File _plugins/gtn/contributors.rb, line 206
def self.person?(site, c)
  site.data['contributors'].key?(c)
end