class MissionsController < ApplicationController
  before_action :set_mission, only: [:show, :edit, :update, :destroy, :launch, :mission_control]
  
  before_action :authenticate_user!
  
  layout 'front_end'

  # GET /missions
  # GET /missions.json
  def index
    @user = User.find(current_user.id)
    @missions = @user.mission_agent_invites.where(:status => 'accepted')
    @mission_control = Mission.where(:owner => @user)
  end
  
  def list
    @missions = Mission.all
  end

  # GET /missions/1
  # GET /missions/1.json
  def show
    @agent = @mission.mission_agents.where(:user_id => current_user.id)
  end
  
  def mission_control
  end

  # GET /missions/new
  def new
    @mission = Mission.new
    @mission.mission_agents.build
    @mission.mission_agents.each do |agent|
      agent.mission_agent_steps.build
    end
  end

  # GET /missions/1/edit
  def edit
  end

  # POST /missions
  # POST /missions.json
  def create
    @mission = Mission.new(mission_params)
    @mission.status = 'Initializing'
    @mission.owner = current_user
    respond_to do |format|
      if @mission.save
        format.html { redirect_to @mission, notice: 'Mission was successfully created.' }
        format.json { render action: 'show', status: :created, location: @mission }
      else
        format.html { render action: 'new' }
        format.json { render json: @mission.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /missions/1
  # PATCH/PUT /missions/1.json
  def update
    respond_to do |format|
      if @mission.update(mission_params)
        @mission.assign_attributes(params[:mission_agents_attributes])
        @mission.assign_attributes(params[:mission_agent_steps_attributes])
        params[:mission][:mission_agents_attributes].values.each do |a|
          a[:mission_agent_steps_attributes].values.each do |s|
            @step = MissionAgentStep.find(s[:id])
            if s[:_destroy] == 1.to_s
              @step.destroy
            else
              @step.description = s[:description]
              @step.save
            end
          end
        end

        format.html { redirect_to mission_control_path(@mission), notice: 'Mission was successfully updated.' }
        format.json { head :no_content }
      else
        format.html { render action: 'edit' }
        format.json { render json: @mission.errors, status: :unprocessable_entity }
      end
    end
  end
  
  def launch
    @mission.status = 'Launched'
    respond_to do |format|
      if @mission.save
        @users = User.all
        @mission_agents = @mission.mission_agents.all
        @users.each do |user|
          @invited = false
          @mission_agents.each do |agent|
            if agent.user != user
              agent.mission_agent_invites.each do |invite|
                if invite.user == user
                    # user already invited
                    @invited = true
                end
              end
            else
              @invited = true
            end
          end
          if @invited == false
            @mission_agents.each do |agent|
              if agent.user == nil
                agent.user_id = user.id
                agent.mission_agent_invites.create!(:user_id => user.id, :status => 'invited') 
                agent.save
              end
            end
          end
        end
        format.html { redirect_to @mission, notice: 'Mission launched!' }
        format.json { head :no_content }
      else
        format.html { render action: 'edit' }
        format.json { render json: @mission.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /missions/1
  # DELETE /missions/1.json
  def destroy
    @mission.destroy
    respond_to do |format|
      format.html { redirect_to missions_url }
      format.json { head :no_content }
    end
  end
  
  def validate_agent_step
    @step = MissionAgentStep.find(params[:mission_agent_step][:id])
    @step.proof = params[:mission_agent_step][:proof]
    @step.completed = true
    @mission = @step.mission_agent.mission
    if @step.save
      redirect_to mission_path(@mission), notice: 'Step completed!'
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_mission
      @mission = Mission.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def mission_params
      params.require(:mission).permit(:title, :description, :status, :agent_search_start, :agent_search_end, :mission_agents_attributes  => [:id, :mission_id, :description, :_destroy], :mission_agent_steps_attributes => [:id, :mission_agent_id, :description, :proof, :_destroy])
    end
end