# frozen_string_literal: true

require "faraday"
require "faraday/net_http"
require "faraday/multipart"

module CiToolkit
  # A client for Seetest webservice.
  # See API doc for more info: https://docs.experitest.com/display/PM/How+To+Execute+Rest+API
  # rubocop:disable Metrics/ClassLength
  class SeeTestClient
    SUCCESS = "SUCCESS"
    OKAY = "OK"
    ERROR = "ERROR"
    API_VERSION = "v1"
    attr_reader :faraday_conn

    def initialize(bot = CiToolkit::SeeTestBot.new)
      @faraday_conn = bot.faraday_conn
    end

    # rubocop:disable Metrics/MethodLength
    def upload_file(
      project_name:,
      unique_name:,
      full_path_to_file:,
      content_type: "application/octet-stream"
    )
      response = faraday_upload(
        project_name,
        unique_name,
        full_path_to_file,
        content_type
      ).body

      # Application already exists. Replace it.
      if (response["status"] == SUCCESS && response["data"]["created"] == "false") ||
         (response["status"] == ERROR && response.dig("data", "uniqueName"))
        response = replace_existing_application_by_unique_name(
          project_name,
          unique_name,
          full_path_to_file,
          content_type
        )
      end

      unless response["status"] == SUCCESS
        raise StandardError,
              "Upload response from Seetest returned an error. Response body is: '#{response}'"
      end

      response["status"]
    end
    # rubocop:enable Metrics/MethodLength

    private

    def replace_existing_application(
      application_id,
      project_name,
      unique_name,
      full_path_to_file,
      content_type
    )
      response = faraday_delete_application(application_id)

      if response["status"] == SUCCESS && response["code"] == OKAY
        response = faraday_upload_file_with_error_handling(project_name, unique_name, full_path_to_file, content_type)
      end
      response
    end

    def replace_existing_application_by_unique_name(project_name, unique_name, full_path_to_file, content_type)
      application_info_response = faraday_get_application_info(unique_name)
      application_info_response.each do |app_response|
        next unless app_response["uniqueName"] == unique_name

        response = replace_existing_application(app_response["id"], project_name, unique_name, full_path_to_file,
                                                content_type)
        return response if response["status"] == SUCCESS
      end
    end

    def faraday_upload_file_with_error_handling(
      project_name,
      unique_name,
      full_path_to_file,
      content_type
    )
      response = faraday_upload(project_name, unique_name, full_path_to_file, content_type).body
      unless response["status"] == SUCCESS && response["data"]["created"] == "true"
        raise StandardError,
              "Upload response from Seetest returned an error. Response body is: '#{response}'"
      end

      response
    end

    def faraday_upload(
      project_name,
      unique_name,
      full_path_to_file,
      content_type
    )
      file = Faraday::Multipart::FilePart.new(full_path_to_file, content_type)
      params = {
        file:,
        uniqueName: unique_name,
        project: project_name
      }
      @faraday_conn.post("/api/#{API_VERSION}/applications/new", params)
    end

    def faraday_get_application_info(unique_name)
      params = { uniqueName: unique_name }
      response = @faraday_conn.get("/api/#{API_VERSION}/applications", params).body
      if response.empty?
        raise StandardError,
              "Get application info for uniqueName: #{unique_name} from Seetest returned an error. " \
              "Response body is: '#{response}'"
      end
      response
    end

    def faraday_delete_application(application_id)
      response = @faraday_conn.post("/api/#{API_VERSION}/applications/#{application_id}/delete").body
      unless response["status"] == SUCCESS && response["code"] == OKAY
        raise StandardError,
              "Delete application id: #{application_id} from Seetest returned an error. " \
              "Response body is: '#{response}'"
      end
      response
    end
  end
  # rubocop:enable Metrics/ClassLength
end