require "fileutils"
require_relative "db"

PROJECTS_STRUCTURE = {
  :REPO => "repo",
  :LOGS => "logs",
  :CONFIGS => "configs",
  :SRCPRP => "srcprp",
  :SIGNED => "signed",
  :SRC => "src",
}

class ProjectsActions
  attr :path, :error, :db

  def initialize(path, db)
    @path = nil
    @error = nil
    @db = db
    if File.absolute_path?(path)
      if File.exist?(path)
        @path = path
      end
    else
      apath = File.realpath(path)
      if File.exist?(apath)
        @path = apath
      end
    end
  end

  def get_projects
    prj = []
    File.open("locks/prjcreate", "r") do |f|
      f.flock(File::LOCK_SH)
      prj = @db.proj_list
    end
    prj
  end

  def get_project(id)
    prj = nil
    File.open("locks/prjcreate", "r") do |f|
      f.flock(File::LOCK_SH)
      prj = @db.proj(id.to_i)
    end
    prj
  end

  def get_project_path(id)
    @error = nil
    fname = nil
    prj = @db.proj(id)
    if prj.nil?
      @error = "Проекта с id = #{id} не существует"
    else
      fname = File.expand_path("#{prj[:projname]}.prj", @path)
    end
    fname
  end

  def get_project_config(id)
    @error = nil
    fname = nil
    prj = @db.proj(id)
    if prj.nil?
      @error = "Проекта с id = #{id} не существует"
    else
      fname = File.expand_path("#{prj[:projname]}.prj", @path)
      fname = File.join(fname, PROJECTS_STRUCTURE[:CONFIGS], "#{prj[:projname]}.cfg")
    end
    fname
  end

  def get_project_path_git(id, gitname)
    proj_path = get_project_path(id)
    File.join(proj_path, PROJECTS_STRUCTURE[:SRC], gitname)
  end

  def create_project(name, description, configuration)
    @error = nil
    ret_val = 0
    project_name = sanitize_rcptname(name)
    File.open("locks/prjcreate", "r") do |f|
      f.flock(File::LOCK_EX)
      fname = File.expand_path("#{project_name}.prj", @path)
      if File.exist?(fname)
        @error = "Проект с таким именем уже существует: #{project_name}"
        ret_val = 1
      else
        created = false
        begin
          Dir.mkdir(fname)
          PROJECTS_STRUCTURE.each_pair do |key, value|
            new_path = File.join(fname, value)
            Dir.mkdir(new_path)
          end
          if File.exist?(configuration)
            conf_path = File.join(fname, PROJECTS_STRUCTURE[:CONFIGS], "#{project_name}.cfg")
            proj_config = <<~PRJ_CFG
              include("#{configuration}")
              config_opts['plugin_conf']['ccache_enable'] = True
              config_opts['plugin_conf']['ccache_opts']['max_cache_size'] = '4G'
              config_opts['plugin_conf']['ccache_opts']['hashdir'] = True
              config_opts['plugin_conf']['ccache_opts']['debug'] = False
              config_opts['plugin_conf']['ccache_opts']['show_stats'] = True
              config_opts['plugin_conf']['package_state_enable'] = True
              config_opts['plugin_conf']['procenv_enable'] = True
              config_opts['plugin_conf']['root_cache_enable'] = True
              config_opts['plugin_conf']['showrc_enable'] = True
              config_opts['plugin_conf']['yum_cache_enable'] = True
            PRJ_CFG
            File.open(conf_path, "w") { |f| f << proj_config }
            @error = @db.proj_create(project_name, description)
            if @error.nil?
              created = true
            end
          else
            ret_val = 1
            @error = "Конфигурация #{configuration} не существует"
          end
        rescue => e
          ret_val = 1
          @error = e.message
        end
        unless created
          FileUtils.rm_rf(fname, secure: true)
        end
      end
    end
    ret_val
  end

  def get_project_gits(id, repo)
    res = []
    File.open("locks/prjcreate", "r") do |f|
      f.flock(File::LOCK_EX)
      res = @db.get_gits_for_projects(id)
      res_sync = res.map do |item|
        prj_p = get_project_path(id)
        path = File.join(prj_p, PROJECTS_STRUCTURE[:SRC], item[:reponame])
        item[:is_repo_synced] = repo.is_repos_sync(item[:reponame], path)
        item
      end
    end
    res
  end

  def add_git_to_project(prj_id, git_id, repo, git_name)
    path = get_project_path(prj_id)
    if @error.nil?
      path = File.join(path, PROJECTS_STRUCTURE[:SRC], git_name)
      err = repo.clone_repo_master(git_id, path)
      if err.nil?
        @db.save_git_project(prj_id, git_id)
      end
    else
      err = @error
    end
    err
  end

  def renew_git_to_project(prj_id, git_id, repo, git_name)
    path = get_project_path(prj_id)
    if @error.nil?
      path = File.join(path, PROJECTS_STRUCTURE[:SRC], git_name)
      err = repo.clone_repo_master(git_id, path)
    else
      err = @error
    end
    err
  end
end