redmine_gtt.rb

# frozen_string_literal: true

require 'bigdecimal'

module RedmineGtt

  # Number of decimal places GeoJSON coordinates are rounded to on output
  # (EPSG:4326 degrees, so 6 digits is ~0.11 m, 7 ~1 cm). RGeo's encoder emits
  # full float precision and upstream declines to add a precision option, so
  # the plugin rounds itself; the default keeps payloads small without losing
  # any real-world accuracy. Configurable via plugin settings; clamped so a
  # bad value can never break SQL or produce absurd output.
  DEFAULT_GEOJSON_PRECISION = 6
  GEOJSON_PRECISION_RANGE = (0..15)

  def self.geojson_precision
    raw = Setting.plugin_redmine_gtt['geojson_precision']
    value = Integer(raw, exception: false) || DEFAULT_GEOJSON_PRECISION
    value.clamp(GEOJSON_PRECISION_RANGE.min, GEOJSON_PRECISION_RANGE.max)
  end

  # Rounds the numeric literals in a WKT string to the configured precision,
  # for DISPLAY only (issue history, notification emails, PDF). The geometry
  # is stored at full precision; only the human-facing text is shortened. The
  # WKT structure and any integer tokens are left untouched. BigDecimal does
  # the rounding so the output stays plain decimal: no Float last-digit drift,
  # no scientific notation, and no negative-zero ("-0.0") for tiny values.
  def self.round_wkt(wkt, precision = geojson_precision)
    return wkt unless wkt.is_a?(String)
    wkt.gsub(/-?\d+\.\d+(?:[eE][+-]?\d+)?/) do |number|
      rounded = BigDecimal(number).round(precision)
      rounded = rounded.abs if rounded.zero?    # never render "-0.0"
      # BigDecimal#round returns an Integer when precision <= 0; coerce back so
      # #to_s('F') (plain decimal, no scientific notation) always applies.
      BigDecimal(rounded).to_s('F')
    end
  end

  def self.setup_normal_patches
    RedmineGtt::Patches::IssuePatch.apply
    RedmineGtt::Patches::IssueQueryPatch.apply
    RedmineGtt::Patches::ProjectPatch.apply
    RedmineGtt::Patches::UserPatch.apply
    RedmineGtt::Patches::UserPreferencePatch.apply

    RedmineGtt::Patches::ProjectsHelperPatch.apply
    RedmineGtt::Patches::PluginSettingPatch.apply
  end

  def self.setup_controller_patches

    RedmineGtt::Patches::IssuesControllerPatch.apply
    RedmineGtt::Patches::ProjectsControllerPatch.apply
    RedmineGtt::Patches::UsersControllerPatch.apply
    RedmineGtt::Patches::IssuesHelperPatch.apply
    RedmineGtt::Patches::QueriesHelperPatch.apply

    [
      IssuesController,
      MyController,
      ProjectsController,
      UsersController,
    ].each{ |c| c.send :helper, 'gtt_map' }
  end
end