implement block emissions

substrate/emissions/primitives/Cargo.toml

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+[package]
+name = "serai-emissions-primitives"
+version = "0.1.0"
+description = "Serai emissions primitives"
+license = "MIT"
+repository = "https://github.com/serai-dex/serai/tree/develop/substrate/emissions/primitives"
+authors = ["Akil Demir <aeg_asd@hotmail.com>"]
+edition = "2021"
+rust-version = "1.77"
+
+[package.metadata.docs.rs]
+all-features = true
+rustdoc-args = ["--cfg", "docsrs"]
+
+[lints]
+workspace = true
+
+[dependencies]
+
+[features]
+std = []
+default = ["std"]

substrate/emissions/primitives/LICENSE

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+MIT License
+
+Copyright (c) 2024 Luke Parker
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

substrate/emissions/primitives/src/lib.rs

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+#![cfg_attr(docsrs, feature(doc_cfg))]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
+#![cfg_attr(not(feature = "std"), no_std)]
+
+/// Amount of blocks in 30 days for 6s per block.
+pub const BLOCKS_PER_MONTH: u32 = 10 * 60 * 24 * 30;
+
+/// INITIAL_REWARD = 100,000 SRI / BLOCKS_PER_DAY for 60 days
+pub const INITIAL_REWARD_PER_BLOCK: u64 = 100_000 * 10u64.pow(8) / ((BLOCKS_PER_MONTH as u64) / 30);
+
+/// REWARD = 20M SRI / BLOCKS_PER_YEAR
+pub const REWARD_PER_BLOCK: u64 = 20_000_000 * 10u64.pow(8) / ((BLOCKS_PER_MONTH as u64) * 12);
+
+/// 20% of all stake desired to be for Serai network(2/10)
+pub const SERAI_VALIDATORS_DESIRED_PERCENTAGE: u64 = 2;
+
+/// Desired unused capacity ratio for a network assuming capacity is 10,000.
+pub const DESIRED_DISTRIBUTION: u64 = 1_000;
+
+/// Percentage scale for the validator vs. pool reward distribution.
+pub const ACCURACY_MULTIPLIER: u64 = 10_000;
+
+/// The block to target for economic security
+pub const SECURE_BY: u64 = (BLOCKS_PER_MONTH as u64) * 12;