# typed: strict
# frozen_string_literal: true

module Bhook
  class MdFile
    extend T::Sig
    
    PAGE_TEMPLATE = T.let(File.read(Bhook::PAGE_TEMPLATE_PATH), String)
    AFTER_H1_TEMPLATE = T.let(File.read(Bhook::AFTER_H1_TEMPLATE_PATH), String)
    
    sig { returns(Pathname) }
    attr_reader :src_file_path
    
    sig { params(src_file_path: Pathname, out_path: Pathname, git: Git::Base).void }
    def initialize(src_file_path, out_path, git)
      L.debug "Reading: #{src_file_path}"
      @md = T.let(File.read(src_file_path), String)
      @src_file_path = src_file_path
      @out_path = out_path
      src_file_date, src_file_sha = git.lib.send(:command, 'log',
                                                  '-n 1',
                                                  '--pretty=format:%ad|%h',
                                                  '--date=short',
                                                  '--',
                                                  @src_file_path).split('|')
      @src_file_date = T.let(src_file_date, T.nilable(String))
      @src_file_sha = T.let(src_file_sha, T.nilable(String))
    end

    sig { params(theme: Bhook::Theme).void }
    def write!(theme)
      out_file_name = @src_file_path.basename.sub(/\.md$/, '.html')
      out_file_path = @out_path.join(out_file_name)

      L.debug "Processing: #{@src_file_sha || 'unversioned'} #{@src_file_path}"
      rendered_page = theme.render_page(@md, @src_file_sha, @src_file_date)

      L.debug "Writing: #{@src_file_sha} #{out_file_path}"
      File.write(out_file_path, rendered_page)
    end

    sig { returns(String) }
    def to_s
      @src_file_path.to_s
    end
  end
end