staking: support index stake and subgraph allocation stake (#174)

* stlye: increase max line

* tests: remove unused test

* curation: refactor and natspec update

* disputes: update reward calculation and natspec

* tests: remove unused and add new defaults

* staking: rewrite first version with stake+allocate

* staking: add channel data

* staking: fix test

* staking: add thawing period

* staking: add token locking for withdrawal

* staking:
- add "low-level" stake balance logic in a library
- add and improve stake, unstake, allocate, slash functions
- add withdraw unlocked tokens after thawing period
- add support for thawing averaging when multiple unstake request
- move slashingPercent settings and calculations to dispute contract

* staking: add tests

* staking: add more test

* staking: add unstake weighted avg tests

* tests: equal -> eq

* staking: add more tests

* curation: rename functions

* staking: add channel multisig creation

* staking: channel settlement according to incoming token address

* staking:
- use underscore for private methods as convention
- actually create the conterfactual multisig channel
- fix tests

* staking: add rebate pool

* staking: avoid distribution of curation fees if subgraph not curated

* build: fix and improve deploy script (#175)

* build:
- deploy script using await/async
- deploy missing new contracts
- add a config file with desired deploy parameters
* build: remove web3 dependency in config file
* build: add tx hash when calling setters and better logging

* staking: remove channel proxy channel creation in favor of tracking channels by index node signer address

* staking: delete rebate pool when all settlements claimed

* staking: add channelDisputePeriod

* staking:
- allow max settlement to be zero
- add event for rebate claim
- setter for curation

* staking: allow to restake when claiming the rebate

* staking: do not allow to slash more funds than staked

* staking: add channel dispute period restriction to claim

* staking: check condition to avoid unstaking more funds that exist at the moment of withdrawal

* staking: remove unallocate public call (for now) as only way to unallocate from subgraph must be to settle

* disputes: chain id (#176)

* staking: add more comments

* epochs: remove unused redundant block number data (#177)

* build: add husky rules (#178)

* build: add husky rule for push

* build: add husky config file

* build: husky lint-staged

* build: setup husky in package.json

* build: process un-prettyfied files

* staking: add setter for curation fee percentage and more tests

* staking: address review improvements

* staking: remove unused import

* staking: rename index node stake tokens to make it clearer

* staking: remove totalTokens and totalFees unused state

Author: abarmat

.eslintrc

@@ -28,7 +28,7 @@
     "generator-star-spacing": ["error", "before"],
     "indent": ["error", 2],
     "linebreak-style": ["error", "unix"],
-    "max-len": ["warn", 120, 2],
+    "max-len": ["warn", 100, 2],
     "no-debugger": "off",
     "no-dupe-args": "error",
     "no-dupe-keys": "error",

.prettierrc.json

@@ -1,5 +1,5 @@
 {
-  "printWidth": 80,
+  "printWidth": 100,
   "useTabs": false,
   "bracketSpacing": true,
   "overrides": [

.soliumrc.json

@@ -2,8 +2,11 @@
   "extends": "solium:recommended",
   "plugins": ["security"],
   "rules": {
+    "no-experimental": ["off"],
     "quotes": ["error", "double"],
     "indentation": ["error", 4],
-    "linebreak-style": ["error", "unix"]
+    "linebreak-style": ["error", "unix"],
+    "security/no-inline-assembly": ["off"],
+    "security/no-low-level-calls": ["off"]
   }
-}
+}