Yegor San
5 years ago
commit
8e66349ace
@ -0,0 +1,89 @@ |
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defmodule Explorer.ChainSpec.POA.Importer do |
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@moduledoc """ |
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Imports emission reward range for POA chain. |
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""" |
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|
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require Logger |
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alias Explorer.Chain.Wei |
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alias Explorer.Repo |
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alias Explorer.SmartContract.Reader |
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alias Explorer.Chain.Block.{EmissionReward, Range} |
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alias Explorer.ChainSpec.GenesisData |
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@block_reward_amount_abi %{ |
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"type" => "function", |
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"stateMutability" => "view", |
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"payable" => false, |
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"outputs" => [%{"type" => "uint256", "name" => ""}], |
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"name" => "blockRewardAmount", |
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"inputs" => [], |
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"constant" => true |
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} |
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@block_reward_amount_params %{"blockRewardAmount" => []} |
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@emission_funds_amount_abi %{ |
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"type" => "function", |
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"stateMutability" => "view", |
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"payable" => false, |
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"outputs" => [%{"type" => "uint256", "name" => ""}], |
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"name" => "emissionFundsAmount", |
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"inputs" => [], |
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"constant" => true |
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} |
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@emission_funds_amount_params %{"emissionFundsAmount" => []} |
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@emission_funds_block_start 5_098_087 |
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def import_emission_rewards do |
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if is_nil(rewards_contract_address()) do |
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Logger.warn(fn -> "No rewards contract address is defined" end) |
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else |
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block_reward = block_reward_amount() |
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emission_funds = emission_funds_amount() |
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rewards = [ |
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%{ |
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block_range: %Range{from: 0, to: @emission_funds_block_start}, |
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reward: %Wei{value: block_reward} |
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}, |
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%{ |
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block_range: %Range{from: @emission_funds_block_start + 1, to: :infinity}, |
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reward: %Wei{value: Decimal.add(block_reward, emission_funds)} |
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} |
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] |
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{_, nil} = Repo.delete_all(EmissionReward) |
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{_, nil} = Repo.insert_all(EmissionReward, rewards) |
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end |
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end |
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def block_reward_amount do |
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call_contract(rewards_contract_address(), @block_reward_amount_abi, @block_reward_amount_params) |
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end |
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def emission_funds_amount do |
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call_contract(rewards_contract_address(), @emission_funds_amount_abi, @emission_funds_amount_params) |
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end |
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defp rewards_contract_address do |
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Application.get_env(:explorer, GenesisData)[:rewards_contract_address] |
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end |
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defp call_contract(address, abi, params) do |
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abi = [abi] |
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method_name = |
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params |
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|> Enum.map(fn {key, _value} -> key end) |
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|> List.first() |
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Reader.query_contract(address, abi, params) |
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value = |
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case Reader.query_contract(address, abi, params) do |
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%{^method_name => {:ok, [result]}} -> result |
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_ -> 0 |
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end |
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|
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Decimal.new(value) |
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end |
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end |
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