# encoding: UTF-8
# frozen_string_literal: true

require_relative '../validations'

module API
  module V2
    module Account
      class Deposits < Grape::API

        before { deposits_must_be_permitted! }

        desc 'Get your deposits history.',
          is_array: true,
          success: API::V2::Entities::Deposit

        params do
          optional :currency,
                   type: String,
                   values: { value: -> { Currency.visible.codes(bothcase: true) }, message: 'account.currency.doesnt_exist' },
                   desc: 'Currency code'
          optional :state,
                   values: { value: ->(v) { (Array.wrap(v) - ::Deposit.aasm.states.map(&:name).map(&:to_s)).blank? }, message: 'account.deposit.invalid_state' },
                   desc: 'Filter deposits by states.'
          optional :txid,
                   type: String,
                   allow_blank: false,
                   desc: 'Deposit transaction id.'
          optional :time_from,
                   allow_blank: { value: false, message: 'account.deposit.empty_time_from' },
                   type: { value: Integer, message: 'account.deposit.non_integer_time_from' },
                   desc: 'An integer represents the seconds elapsed since Unix epoch.'
          optional :time_to,
                   type: { value: Integer, message: 'account.deposit.non_integer_time_to' },
                   allow_blank: { value: false, message: 'account.deposit.empty_time_to' },
                   desc: 'An integer represents the seconds elapsed since Unix epoch.'
          optional :limit,
                   type: { value: Integer, message: 'account.deposit.non_integer_limit' },
                   values: { value: 1..100, message: 'account.deposit.invalid_limit' },
                   default: 100,
                   desc: "Number of deposits per page (defaults to 100, maximum is 100)."
          optional :page,
                   type: { value: Integer, message: 'account.deposit.non_integer_page' },
                   values: { value: -> (p){ p.try(:positive?) }, message: 'account.deposit.non_positive_page'},
                   default: 1,
                   desc: 'Page number (defaults to 1).'
        end
        get "/deposits" do
          user_authorize! :read, ::Deposit

          currency = Currency.find(params[:currency]) if params[:currency].present?

          current_user.deposits.order(id: :desc)
                      .tap { |q| q.where!(currency: currency) if currency }
                      .tap { |q| q.where!(txid: params[:txid]) if params[:txid] }
                      .tap { |q| q.where!(aasm_state: params[:state]) if params[:state] }
                      .tap { |q| q.where!('updated_at >= ?', Time.at(params[:time_from])) if params[:time_from].present? }
                      .tap { |q| q.where!('updated_at <= ?', Time.at(params[:time_to])) if params[:time_to].present? }
                      .tap { |q| present paginate(q), with: API::V2::Entities::Deposit }
        end

        desc 'Get details of specific deposit.' do
          success API::V2::Entities::Deposit
        end
        params do
          requires :txid,
                   type: String,
                   allow_blank: false,
                   desc: "Deposit transaction id"
        end
        get "/deposits/:txid" do
          user_authorize! :read, ::Deposit

          deposit = current_user.deposits.find_by!(txid: params[:txid])
          present deposit, with: API::V2::Entities::Deposit
        end

        desc 'Returns deposit address for account you want to deposit to by currency. ' \
          'The address may be blank because address generation process is still in progress. ' \
          'If this case you should try again later.',
          success: API::V2::Entities::Deposit
        params do
          requires :currency,
                   type: String,
                   values: { value: -> { Currency.coins.visible.codes(bothcase: true) }, message: 'account.currency.doesnt_exist'},
                   desc: 'The account you want to deposit to.'
          given :currency do
            optional :address_format,
                     type: String,
                     values: { value: -> { %w[legacy cash] }, message: 'account.deposit_address.invalid_address_format' },
                     validate_currency_address_format: { value: true, prefix: 'account.deposit_address' },
                     desc: 'Address format legacy/cash'
          end
        end
        get '/deposit_address/:currency', requirements: { currency: /[\w\.\-]+/ } do
          user_authorize! :read, ::PaymentAddress

          currency = Currency.find(params[:currency])

          unless currency.deposit_enabled?
            error!({ errors: ['account.currency.deposit_disabled'] }, 422)
          end

          wallet = Wallet.deposit_wallet(currency.id)

          unless wallet.present?
            error!({ errors: ['account.wallet.not_found'] }, 422)
          end

          payment_address = current_user.payment_address(wallet.id)
          present payment_address, with: API::V2::Entities::PaymentAddress, address_format: params[:address_format]
        end
        ############

        desc 'Create fiat deposits'
        params do
          requires :amount,
                   type: { value: BigDecimal, message: 'deposit.fiat.non_decimal_amount' },
                   values: { value: ->(v) { v.try(:positive?) }, message: 'deposit.fiat.non_positive_amount' },
                   desc: 'The amount to deposit fiat.'
          requires :callback_url,
                   regexp: { value: URI::regexp, message: 'callback_url.invalid' },
                   desc: -> { 'callback_url payment url' }
          requires :currency,
                   type: String,
                   default: 'irt',
                   desc: -> { 'currency' }
          requires :card,
                   type: String,
                   desc: 'card bank number'
          optional :factorNumber,
                   type: String,
                   allow_blank: true,
                   desc: 'factor number'
          optional :description,
                   type: String,
                   allow_blank: true,
                   desc: 'description'

        end
        post '/deposits/fiat' do
          user_authorize! :create, ::Deposit
          error!({ errors: ['account.deposit.use_valid_card'] }, 403) if current_user.cards.exclude?(params[:card].to_s)

          deposit_data = { member: current_user, currency: Currency.find(params['currency']), aasm_state: 'canceled',
                           address: params['card'], amount: params['amount'], transfer_type: :fiat }
          deposit = ::Deposits::Fiat.new(deposit_data)

          error!({ errors: deposit.errors.full_messages }, 422) if deposit.errors.any?

          data = { amount: (params[:amount] * 10), callback_url: params[:callback_url],
                   description: params[:description], valid_card_number: params[:card] }
          response = VandarService::generate_token(data)
          if response.dig('status').to_i.positive?
            deposit.tap { |d| d.tid = response.dig('token') }.save!
            present(response: response.dig('token'))
          else
            present(response: response)
            status 422
          end
        end

        desc 'Confirm fiat deposits'
        params do
          requires :token,
                   type: String,
                   allow_blank: false,
                   desc: 'payment token'
        end
        post '/deposits/confirm' do
          deposit = ::Deposits::Fiat.find_by(tid: params[:token])
          error!({ errors: ['corresponding.deposit.record.not.found'] }, 403) unless deposit.present?

          # because vandar just response one
          if deposit.txid.present?
            db_response = {
              status: 1,
              amount: deposit.amount,
              wage: deposit.fee,
              cardNumber: deposit.address,
              transId: deposit.txid
            }
            return present(response: db_response)
          end

          # first step: check everything is ok
          response = ::VandarService.transaction(params[:token])
          if response.dig('status').to_i.positive? && response.dig('trackingCode').present?
            if response['cardNumber'].last(4).to_i == deposit.address.last(4).to_i
              response = VandarService.verify(params[:token])
              if response.dig('status').to_i.positive?
                deposit.update(txid: response['transId'], fee: response['wage'].to_f / 10, aasm_state: 'submitted')
                deposit.charge!
              end
            end
            # TODO we should see the response and check it for rial and toman confirmation
            present(response: response)
          else
            present(response: response)
            status 422
          end
          # second step: verify payment
        end
      end
    end
  end
end