Extract snatch selection into reusable composable (#30)

## Summary

  - add a useSnatchSelection composable that centralises snatch shortfall calculations, position filtering, and RPC memoisation
  - refactor StakeHolder.vue to consume the composable instead of reimplementing the flow inline
  - introduce Vitest config and first composable tests (useSnatchSelection.spec.ts) to cover empty/partial fills and ownership edge cases
  - wire up project tooling updates so the new tests run (jsdom dep, updated package metadata)

  ## Testing

  - cd web-app && npm install
  - npm test

resolves #24

Co-authored-by: openhands <openhands@all-hands.dev>
Reviewed-on: https://codeberg.org/johba/harb/pulls/30
This commit is contained in:
johba 2025-09-30 20:35:47 +02:00
parent 76d84341de
commit 26a8771848
6 changed files with 1202 additions and 311 deletions

View file

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},
"node_modules/jsdom/node_modules/ws": {
"version": "8.18.3",
"resolved": "https://registry.npmjs.org/ws/-/ws-8.18.3.tgz",
"integrity": "sha512-PEIGCY5tSlUt50cqyMXfCzX+oOPqN0vuGqWzbcJ2xvnkzkq46oOpz7dQaTDBdfICb4N14+GARUDw2XV2N4tvzg==",
"devOptional": true,
"license": "MIT",
"engines": {
"node": ">=10.0.0"
},
"peerDependencies": {
"bufferutil": "^4.0.1",
"utf-8-validate": ">=5.0.2"
},
"peerDependenciesMeta": {
"bufferutil": {
"optional": true
},
"utf-8-validate": {
"optional": true
}
}
},
"node_modules/jsesc": {
"version": "3.1.0",
"resolved": "https://registry.npmjs.org/jsesc/-/jsesc-3.1.0.tgz",
@ -7651,6 +8112,13 @@
"node": ">= 0.4"
}
},
"node_modules/mdn-data": {
"version": "2.12.2",
"resolved": "https://registry.npmjs.org/mdn-data/-/mdn-data-2.12.2.tgz",
"integrity": "sha512-IEn+pegP1aManZuckezWCO+XZQDplx1366JoVhTpMpBB1sPey/SbveZQUosKiKiGYjg1wH4pMlNgXbCiYgihQA==",
"devOptional": true,
"license": "CC0-1.0"
},
"node_modules/memoize-one": {
"version": "6.0.0",
"resolved": "https://registry.npmjs.org/memoize-one/-/memoize-one-6.0.0.tgz",
@ -8239,6 +8707,32 @@
"url": "https://github.com/sponsors/sindresorhus"
}
},
"node_modules/parse5": {
"version": "7.3.0",
"resolved": "https://registry.npmjs.org/parse5/-/parse5-7.3.0.tgz",
"integrity": "sha512-IInvU7fabl34qmi9gY8XOVxhYyMyuH2xUNpb2q8/Y+7552KlejkRvqvD19nMoUW/uQGGbqNpA6Tufu5FL5BZgw==",
"devOptional": true,
"license": "MIT",
"dependencies": {
"entities": "^6.0.0"
},
"funding": {
"url": "https://github.com/inikulin/parse5?sponsor=1"
}
},
"node_modules/parse5/node_modules/entities": {
"version": "6.0.1",
"resolved": "https://registry.npmjs.org/entities/-/entities-6.0.1.tgz",
"integrity": "sha512-aN97NXWF6AWBTahfVOIrB/NShkzi5H7F9r1s9mD3cDj4Ko5f2qhhVoYMibXF7GlLveb/D2ioWay8lxI97Ven3g==",
"devOptional": true,
"license": "BSD-2-Clause",
"engines": {
"node": ">=0.12"
},
"funding": {
"url": "https://github.com/fb55/entities?sponsor=1"
}
},
"node_modules/path-browserify": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/path-browserify/-/path-browserify-1.0.1.tgz",
@ -8524,6 +9018,16 @@
"once": "^1.3.1"
}
},
"node_modules/punycode": {
"version": "2.3.1",
"resolved": "https://registry.npmjs.org/punycode/-/punycode-2.3.1.tgz",
"integrity": "sha512-vYt7UD1U9Wg6138shLtLOvdAu+8DsC/ilFtEVHcH+wydcSpNE20AfSOduf6MkRFahL5FY7X1oU7nKVZFtfq8Fg==",
"devOptional": true,
"license": "MIT",
"engines": {
"node": ">=6"
}
},
"node_modules/qrcode": {
"version": "1.5.3",
"resolved": "https://registry.npmjs.org/qrcode/-/qrcode-1.5.3.tgz",
@ -8671,6 +9175,16 @@
"node": ">=0.10.0"
}
},
"node_modules/require-from-string": {
"version": "2.0.2",
"resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz",
"integrity": "sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==",
"devOptional": true,
"license": "MIT",
"engines": {
"node": ">=0.10.0"
}
},
"node_modules/require-main-filename": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-2.0.0.tgz",
@ -8736,6 +9250,13 @@
"fsevents": "~2.3.2"
}
},
"node_modules/rrweb-cssom": {
"version": "0.8.0",
"resolved": "https://registry.npmjs.org/rrweb-cssom/-/rrweb-cssom-0.8.0.tgz",
"integrity": "sha512-guoltQEx+9aMf2gDZ0s62EcV8lsXR+0w8915TC3ITdn2YueuNjdAYh/levpU9nFaoChh9RUS5ZdQMrKfVEN9tw==",
"devOptional": true,
"license": "MIT"
},
"node_modules/run-applescript": {
"version": "7.1.0",
"resolved": "https://registry.npmjs.org/run-applescript/-/run-applescript-7.1.0.tgz",
@ -8819,6 +9340,13 @@
"node": ">=10"
}
},
"node_modules/safer-buffer": {
"version": "2.1.2",
"resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
"integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
"devOptional": true,
"license": "MIT"
},
"node_modules/sass": {
"version": "1.93.1",
"resolved": "https://registry.npmjs.org/sass/-/sass-1.93.1.tgz",
@ -8839,6 +9367,19 @@
"@parcel/watcher": "^2.4.1"
}
},
"node_modules/saxes": {
"version": "6.0.0",
"resolved": "https://registry.npmjs.org/saxes/-/saxes-6.0.0.tgz",
"integrity": "sha512-xAg7SOnEhrm5zI3puOOKyy1OMcMlIJZYNJY7xLBwSze0UjhPLnWfj2GF2EpT0jmzaJKIWKHLsaSSajf35bcYnA==",
"devOptional": true,
"license": "ISC",
"dependencies": {
"xmlchars": "^2.2.0"
},
"engines": {
"node": ">=v12.22.7"
}
},
"node_modules/semver": {
"version": "7.7.2",
"resolved": "https://registry.npmjs.org/semver/-/semver-7.7.2.tgz",
@ -9277,6 +9818,13 @@
"node": ">=14.0.0"
}
},
"node_modules/symbol-tree": {
"version": "3.2.4",
"resolved": "https://registry.npmjs.org/symbol-tree/-/symbol-tree-3.2.4.tgz",
"integrity": "sha512-9QNk5KwDF+Bvz+PyObkmSYjI5ksVUYtjW7AU22r2NKcfLJcXp96hkDWU3+XndOsUb+AQ9QhfzfCT2O+CNWT5Tw==",
"devOptional": true,
"license": "MIT"
},
"node_modules/thread-stream": {
"version": "0.15.2",
"resolved": "https://registry.npmjs.org/thread-stream/-/thread-stream-0.15.2.tgz",
@ -9379,6 +9927,26 @@
"@popperjs/core": "^2.9.0"
}
},
"node_modules/tldts": {
"version": "7.0.16",
"resolved": "https://registry.npmjs.org/tldts/-/tldts-7.0.16.tgz",
"integrity": "sha512-5bdPHSwbKTeHmXrgecID4Ljff8rQjv7g8zKQPkCozRo2HWWni+p310FSn5ImI+9kWw9kK4lzOB5q/a6iv0IJsw==",
"devOptional": true,
"license": "MIT",
"dependencies": {
"tldts-core": "^7.0.16"
},
"bin": {
"tldts": "bin/cli.js"
}
},
"node_modules/tldts-core": {
"version": "7.0.16",
"resolved": "https://registry.npmjs.org/tldts-core/-/tldts-core-7.0.16.tgz",
"integrity": "sha512-XHhPmHxphLi+LGbH0G/O7dmUH9V65OY20R7vH8gETHsp5AZCjBk9l8sqmRKLaGOxnETU7XNSDUPtewAy/K6jbA==",
"devOptional": true,
"license": "MIT"
},
"node_modules/to-buffer": {
"version": "1.2.1",
"resolved": "https://registry.npmjs.org/to-buffer/-/to-buffer-1.2.1.tgz",
@ -9416,6 +9984,19 @@
"node": ">=6"
}
},
"node_modules/tough-cookie": {
"version": "6.0.0",
"resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-6.0.0.tgz",
"integrity": "sha512-kXuRi1mtaKMrsLUxz3sQYvVl37B0Ns6MzfrtV5DvJceE9bPyspOqk9xxv7XbZWcfLWbFmm997vl83qUWVJA64w==",
"devOptional": true,
"license": "BSD-3-Clause",
"dependencies": {
"tldts": "^7.0.5"
},
"engines": {
"node": ">=16"
}
},
"node_modules/tr46": {
"version": "0.0.3",
"resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
@ -10275,6 +10856,19 @@
"typescript": ">=5.0.0"
}
},
"node_modules/w3c-xmlserializer": {
"version": "5.0.0",
"resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-5.0.0.tgz",
"integrity": "sha512-o8qghlI8NZHU1lLPrpi2+Uq7abh4GGPpYANlalzWxyWteJOCsr/P+oPBA49TOLu5FTZO4d3F9MnWJfiMo4BkmA==",
"devOptional": true,
"license": "MIT",
"dependencies": {
"xml-name-validator": "^5.0.0"
},
"engines": {
"node": ">=18"
}
},
"node_modules/webextension-polyfill": {
"version": "0.10.0",
"resolved": "https://registry.npmjs.org/webextension-polyfill/-/webextension-polyfill-0.10.0.tgz",
@ -10287,6 +10881,29 @@
"integrity": "sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==",
"license": "BSD-2-Clause"
},
"node_modules/whatwg-encoding": {
"version": "3.1.1",
"resolved": "https://registry.npmjs.org/whatwg-encoding/-/whatwg-encoding-3.1.1.tgz",
"integrity": "sha512-6qN4hJdMwfYBtE3YBTTHhoeuUrDBPZmbQaxWAqSALV/MeEnR5z1xd8UKud2RAkFoPkmB+hli1TZSnyi84xz1vQ==",
"devOptional": true,
"license": "MIT",
"dependencies": {
"iconv-lite": "0.6.3"
},
"engines": {
"node": ">=18"
}
},
"node_modules/whatwg-mimetype": {
"version": "4.0.0",
"resolved": "https://registry.npmjs.org/whatwg-mimetype/-/whatwg-mimetype-4.0.0.tgz",
"integrity": "sha512-QaKxh0eNIi2mE9p2vEdzfagOKHCcj1pJ56EEHGQOVxp8r9/iszLUUV7v89x9O1p/T+NlTM5W7jW6+cz4Fq1YVg==",
"devOptional": true,
"license": "MIT",
"engines": {
"node": ">=18"
}
},
"node_modules/whatwg-url": {
"version": "5.0.0",
"resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
@ -10489,6 +11106,23 @@
"url": "https://github.com/sponsors/sindresorhus"
}
},
"node_modules/xml-name-validator": {
"version": "5.0.0",
"resolved": "https://registry.npmjs.org/xml-name-validator/-/xml-name-validator-5.0.0.tgz",
"integrity": "sha512-EvGK8EJ3DhaHfbRlETOWAS5pO9MZITeauHKJyb8wyajUfQUenkIg2MvLDTZ4T/TgIcm3HU0TFBgWWboAZ30UHg==",
"devOptional": true,
"license": "Apache-2.0",
"engines": {
"node": ">=18"
}
},
"node_modules/xmlchars": {
"version": "2.2.0",
"resolved": "https://registry.npmjs.org/xmlchars/-/xmlchars-2.2.0.tgz",
"integrity": "sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw==",
"devOptional": true,
"license": "MIT"
},
"node_modules/xmlhttprequest-ssl": {
"version": "2.1.2",
"resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-2.1.2.tgz",

View file

@ -9,7 +9,8 @@
"preview": "vite preview",
"build-only": "vite build",
"type-check": "vue-tsc --build",
"subtree": "git subtree push --prefix dist origin gh-pages"
"subtree": "git subtree push --prefix dist origin gh-pages",
"test": "vitest"
},
"dependencies": {
"@tanstack/vue-query": "^5.64.2",
@ -35,6 +36,7 @@
"@vitejs/plugin-vue": "^5.2.1",
"@vue/tsconfig": "^0.7.0",
"gh-pages": "^6.1.1",
"jsdom": "^27.0.0",
"npm-run-all2": "^7.0.2",
"typescript": "~5.7.3",
"vite": "^6.0.11",

View file

@ -1,127 +1,95 @@
<template>
<div class="hold-inner">
<div class="stake-inner">
<template v-if="!statCollection.initialized">
<div>
<f-loader></f-loader>
</div>
</template>
<div class="hold-inner">
<div class="stake-inner">
<template v-if="!statCollection.initialized">
<div>
<f-loader></f-loader>
</div>
</template>
<template v-else>
<div class="subheader2">Token Amount</div>
<FSlider :min="minStakeAmount" :max="maxStakeAmount" v-model="stake.stakingAmountNumber"></FSlider>
<div class="formular">
<div class="row row-1">
<f-input label="Staking Amount" class="staking-amount" v-model="stake.stakingAmountNumber">
<template v-slot:details>
<div class="balance">Balance: {{ maxStakeAmount.toFixed(2) }} $KRK</div>
<div @click="setMaxAmount" class="staking-amount-max">
<b>Max</b>
</div>
</template>
</f-input>
<Icon class="stake-arrow" icon="mdi:chevron-triple-right"></Icon>
<f-input
label="Owner Slots"
class="staking-amount"
disabled
:modelValue="`${stakeSlots}(${supplyFreeze?.toFixed(4)})`"
>
<template #info>
Slots correspond to a percentage of ownership in the protocol.<br /><br />1,000 Slots =
1% Ownership<br /><br />When you unstake you get the exact percentage of the current
$KRK total supply. When the total supply increased since you staked you get more tokens
back than before.
</template>
</f-input>
<!-- <f-select :items="adjustTaxRate.taxRates" label="Tax" v-model="taxRate">
<template v-slot:info>
The tax you have to pay to keep your staking position open. The tax is
calculated on a yearly basis but paid continuously.
</template>
</f-select> -->
<template v-else>
<div class="subheader2">Token Amount</div>
<FSlider :min="minStakeAmount" :max="maxStakeAmount" v-model="stake.stakingAmountNumber"></FSlider>
<div class="formular">
<div class="row row-1">
<f-input label="Staking Amount" class="staking-amount" v-model="stake.stakingAmountNumber">
<template v-slot:details>
<div class="balance">Balance: {{ maxStakeAmount.toFixed(2) }} $KRK</div>
<div @click="setMaxAmount" class="staking-amount-max">
<b>Max</b>
</div>
</template>
</f-input>
<Icon class="stake-arrow" icon="mdi:chevron-triple-right"></Icon>
<f-input
label="Owner Slots"
class="staking-amount"
disabled
:modelValue="`${stakeSlots}(${supplyFreeze?.toFixed(4)})`"
>
<template #info>
Slots correspond to a percentage of ownership in the protocol.<br /><br />1,000 Slots =
1% Ownership<br /><br />When you unstake you get the exact percentage of the current
$KRK total supply. When the total supply increased since you staked you get more tokens
back than before.
</template>
</f-input>
</div>
<div class="row row-2">
<f-select :items="adjustTaxRate.taxRates" label="Tax" v-model="taxRate">
<template v-slot:info>
The yearly tax you have to pay to keep your slots open. The tax is paid when unstaking
or manually in the dashboard. If someone pays a higher tax they can buy you out.
</template>
</f-select>
<f-input label="Floor Tax" disabled :modelValue="snatchSelection.floorTax">
<template v-slot:info>
This is the current minimum tax you have to pay to claim owner slots from other owners.
</template>
</f-input>
<f-input label="Positions Buyout" disabled :modelValue="snatchSelection.snatchablePositions.length">
<template v-slot:info>
This shows you the numbers of staking positions you buy out from current owners by
paying a higher tax. If you get bought out yourself by new owners you get paid out the
current market value of your position incl. your profits.
</template>
</f-input>
</div>
</div>
<div class="row row-2">
<f-select :items="adjustTaxRate.taxRates" label="Tax" v-model="taxRate">
<template v-slot:info>
The yearly tax you have to pay to keep your slots open. The tax is paid when unstaking
or manually in the dashboard. If someone pays a higher tax they can buy you out.
</template>
</f-select>
<f-input label="Floor Tax" disabled :modelValue="floorTax">
<template v-slot:info>
This is the current minimum tax you have to pay to claim owner slots from other owners.
</template>
</f-input>
<f-input label="Positions Buyout" disabled :modelValue="snatchAblePositions.length">
<template v-slot:info>
This shows you the numbers of staking positions you buy out from current owners by
paying a higher tax. If you get bought out yourself by new owners you get paid out the
current market value of your position incl. your profits.
</template>
</f-input>
</div>
</div>
<f-button size="large" disabled block v-if="stake.state === 'NoBalance'">Insufficient Balance</f-button>
<f-button size="large" disabled block v-else-if="stake.stakingAmountNumber < minStakeAmount"
>Stake amount too low</f-button
>
<f-button
size="large"
disabled
block
v-else-if="
!openPositionsAvailable && stake.state === 'StakeAble' && snatchAblePositions.length === 0
"
>taxRate too low to snatch</f-button
>
<f-button
size="large"
block
v-else-if="stake.state === 'StakeAble' && snatchAblePositions.length === 0"
@click="stakeSnatch"
>Stake</f-button
>
<f-button
size="large"
block
v-else-if="stake.state === 'StakeAble' && snatchAblePositions.length > 0"
@click="stakeSnatch"
>Snatch and Stake</f-button
>
<f-button size="large" outlined block v-else-if="stake.state === 'SignTransaction'"
>Sign Transaction ...</f-button
>
<f-button size="large" outlined block v-else-if="stake.state === 'Waiting'">Waiting ...</f-button>
</template>
<f-button size="large" disabled block v-if="stake.state === 'NoBalance'">Insufficient Balance</f-button>
<f-button size="large" disabled block v-else-if="stake.stakingAmountNumber < minStakeAmount"
>Stake amount too low</f-button
>
<f-button
size="large"
disabled
block
v-else-if="
!snatchSelection.openPositionsAvailable && stake.state === 'StakeAble' && snatchSelection.snatchablePositions.length === 0
"
>taxRate too low to snatch</f-button
>
<f-button
size="large"
block
v-else-if="stake.state === 'StakeAble' && snatchSelection.snatchablePositions.length === 0"
@click="stakeSnatch"
>Stake</f-button
>
<f-button
size="large"
block
v-else-if="stake.state === 'StakeAble' && snatchSelection.snatchablePositions.length > 0"
@click="stakeSnatch"
>Snatch and Stake</f-button
>
<f-button size="large" outlined block v-else-if="stake.state === 'SignTransaction'"
>Sign Transaction ...</f-button
>
<f-button size="large" outlined block v-else-if="stake.state === 'Waiting'">Waiting ...</f-button>
</template>
</div>
</div>
<!-- <template v-if="myActivePositions.length > 0 && status === 'connected'">
<h5>Your Active Positions</h5>
<collapse-active
v-for="position in myActivePositions"
:taxRate="position.taxRatePercentage"
:amount="position.amount"
:treshold="tresholdValue"
:id="position.positionId"
:position="position"
:key="position.id"
></collapse-active>
</template>
<template v-if="myClosedPositions.length > 0 && status === 'connected'">
<h5>History</h5>
<collapse-history
v-for="position in myClosedPositions"
:taxRate="position.taxRatePercentage"
:taxPaid="formatBigNumber(position.taxPaid, 18)"
:amount="position.amount"
:treshold="tresholdValue"
:id="position.positionId"
:key="position.id"
:position="position"
></collapse-history>
</template> -->
</div>
</template>
<script setup lang="ts">
@ -133,26 +101,12 @@ import FSlider from "@/components/fcomponents/FSlider.vue";
import FOutput from "@/components/fcomponents/FOutput.vue";
import { Icon } from "@iconify/vue";
import { formatBigIntDivision, InsertCommaNumber, formatBigNumber, bigInt2Number } from "@/utils/helper";
// import StatsOutput from "@/components/molecules/StatsOutput.vue";
// import ChartJs from "@/components/ChartJs.vue";
// import CollapseActive from "@/components/collapse/CollapseActive.vue";
// import CollapseHistory from "@/components/collapse/CollapseHistory.vue";
// import { bytesToUint256, uint256ToBytes } from "harb-lib";
// import { getSnatchList } from "harb-lib/dist/";
import { formatUnits } from "viem";
import { loadPositions, usePositions, type Position } from "@/composables/usePositions";
import {
calculateSnatchShortfall,
selectSnatchPositions,
minimumTaxRate,
type SnatchablePosition,
} from "kraiken-lib";
import { loadPositions, usePositions } from "@/composables/usePositions";
import { useStake } from "@/composables/useStake";
import { useClaim } from "@/composables/useClaim";
import { useAdjustTaxRate } from "@/composables/useAdjustTaxRates";
import { assetsToShares } from "@/contracts/stake";
import { useSnatchSelection } from "@/composables/useSnatchSelection";
import { getMinStake } from "@/contracts/harb";
import { useWallet } from "@/composables/useWallet";
import { ref, onMounted, watch, computed, inject, watchEffect } from "vue";
@ -166,9 +120,7 @@ const adjustTaxRate = useAdjustTaxRate();
const activeTab = ref("stake");
const StakeMenuOpen = ref(false);
// let minStakeAmount = ref();
const taxRate = ref<number>(1.0);
// const positions = ref<Array<any>>([]);
const loading = ref<boolean>(true);
const stakeSnatchLoading = ref<boolean>(false);
const stake = useStake();
@ -178,11 +130,9 @@ const statCollection = useStatCollection();
const { activePositions } = usePositions();
const floorTax = ref(1);
const minStake = ref(0n);
const stakeSlots = ref();
const supplyFreeze = ref<number>(0);
const shortfallShares = ref<bigint>(0n);
let debounceTimer: ReturnType<typeof setTimeout>;
watchEffect(() => {
console.log("supplyFreeze");
@ -204,18 +154,11 @@ watchEffect(() => {
}, 500); // Verzögerung von 500ms
});
const openPositionsAvailable = computed(() => shortfallShares.value <= 0n);
watchEffect(() => {
console.log("stakeSlots");
stakeSlots.value = (supplyFreeze.value * 1000)?.toFixed(2);
});
// const stakeAbleHarbAmount = computed(() => statCollection.kraikenTotalSupply / 5n);
//war das mal so, wurde das geändert --> funktioniert nicht mehr
// const minStake = computed(() => stakeAbleHarbAmount.value / 600n);
const tokenIssuance = computed(() => {
if (statCollection.kraikenTotalSupply === 0n) {
return 0n;
@ -224,16 +167,11 @@ const tokenIssuance = computed(() => {
return (statCollection.nettoToken7d / statCollection.kraikenTotalSupply) * 100n;
});
function getMinFloorTax() {
const minRate = minimumTaxRate(activePositions.value, 0);
return Math.round(minRate * 100);
}
async function stakeSnatch() {
if (snatchAblePositions.value.length === 0) {
if (snatchSelection.snatchablePositions.value.length === 0) {
await stake.snatch(stake.stakingAmount, taxRate.value);
} else {
const snatchAblePositionsIds = snatchAblePositions.value.map((p: Position) => p.positionId);
const snatchAblePositionsIds = snatchSelection.snatchablePositions.value.map((p: Position) => p.positionId);
await stake.snatch(stake.stakingAmount, taxRate.value, snatchAblePositionsIds);
}
stakeSnatchLoading.value = true;
@ -249,16 +187,7 @@ watch(
console.log("to", to.hash);
if (to.hash === "#stake") {
console.log("StakeMenuOpen", StakeMenuOpen.value);
StakeMenuOpen.value = true;
// if(element){
// element.scrollIntoView({behavior: "smooth"});
// }
// if(ele){
// window.scrollTo(ele.offsetLeft,ele.offsetTop);
// }
}
},
{ flush: "pre", immediate: true, deep: true }
@ -266,12 +195,6 @@ watch(
onMounted(async () => {
try {
//on AccountChange
//TODO
// await getTotalSupply();
// await getTotalSupplyHarb();
// await getOutstandingSupply();
minStake.value = await getMinStake();
stake.stakingAmountNumber = minStakeAmount.value;
} catch (error) {
@ -280,32 +203,16 @@ onMounted(async () => {
loading.value = false;
}
});
// async function getGraphData(): Promise<Array<any>> {
// let res = await axios.post("http://127.0.0.1:42069/graphql", {
// query: "query MyQuery {\n positions {\n id\n lastTaxTime\n owner\n share\n status\n taxRate\n creationTime\n }\n}",
// });
// return res.data.data.positions;
// }
// const result = useReadContract({
// abi: StakeContract.abi,
// address: StakeContract.contractAddress,
// functionName: "minStake",
// args: [],
// });
// minStakeAmount = result.data;
const minStakeAmount = computed(() => {
console.log("minStake", minStake.value);
return bigInt2Number(minStake.value, 18);
});
const maxStakeAmount = computed(() => {
if (wallet.balance?.value) {
// return Number(balance?.value?.value / 10n ** BigInt(balance?.value!.decimals));
console.log("wallet.balance.value", wallet.balance);
console.log("formatBigIntDivision(wallet.balance.value, 10n ** 18n)", bigInt2Number(wallet.balance.value, 18));
return bigInt2Number(wallet.balance.value, 18);
} else {
return 0;
@ -325,128 +232,10 @@ watch(
function setMaxAmount() {
console.log("maxStakeAmount.value", maxStakeAmount.value);
stake.stakingAmountNumber = maxStakeAmount.value;
}
const snatchAblePositions = ref<Position[]>([]);
let selectionRun = 0;
watchEffect((onCleanup) => {
const runId = ++selectionRun;
let cancelled = false;
onCleanup(() => {
cancelled = true;
});
const compute = async () => {
if (statCollection.stakeTotalSupply === 0n) {
shortfallShares.value = 0n;
if (!cancelled && runId === selectionRun) {
snatchAblePositions.value = [];
floorTax.value = getMinFloorTax();
}
return;
}
const stakingShares = stake.stakingAmountShares ?? 0n;
const shortfall = calculateSnatchShortfall(
statCollection.outstandingStake,
stakingShares,
statCollection.stakeTotalSupply,
2n,
10n
);
shortfallShares.value = shortfall;
if (shortfall <= 0n) {
if (!cancelled && runId === selectionRun) {
snatchAblePositions.value = [];
floorTax.value = getMinFloorTax();
}
return;
}
const maxTaxRateDecimal = (taxRate.value ?? 0) / 100;
const includeOwned = demo;
const recipient = wallet.account.address ?? null;
const eligiblePositions = activePositions.value.filter((position: Position) => {
if (position.taxRate >= maxTaxRateDecimal) {
return false;
}
if (!includeOwned && position.iAmOwner) {
return false;
}
return true;
});
if (eligiblePositions.length === 0) {
if (!cancelled && runId === selectionRun) {
snatchAblePositions.value = [];
floorTax.value = getMinFloorTax();
}
return;
}
const candidates: SnatchablePosition[] = [];
for (const position of eligiblePositions) {
try {
const shares = await assetsToShares(position.harbDeposit);
candidates.push({
id: position.positionId,
owner: position.owner,
stakeShares: shares,
taxRate: position.taxRate,
taxRateIndex: position.taxRateIndex,
});
} catch (error) {
console.error("Unable to compute stake shares for position", position.id, error);
}
}
const selection = selectSnatchPositions(candidates, {
shortfallShares: shortfall,
maxTaxRate: maxTaxRateDecimal,
includeOwned,
recipientAddress: recipient,
});
if (cancelled || runId !== selectionRun) {
return;
}
if (selection.remainingShortfall > 0n) {
snatchAblePositions.value = [];
floorTax.value = getMinFloorTax();
return;
}
const positionById = new Map<bigint, Position>();
for (const position of activePositions.value) {
positionById.set(position.positionId, position);
}
const selectedPositions = selection.selected
.map((candidate) => positionById.get(candidate.id))
.filter((value): value is Position => Boolean(value));
snatchAblePositions.value = selectedPositions;
if (selection.maxSelectedTaxRateIndex !== undefined) {
const nextIndex = selection.maxSelectedTaxRateIndex + 1;
const option =
adjustTaxRate.taxRates[nextIndex] ??
adjustTaxRate.taxRates[selection.maxSelectedTaxRateIndex];
floorTax.value = option ? option.year : getMinFloorTax();
} else {
floorTax.value = getMinFloorTax();
}
};
compute();
});
const snatchSelection = useSnatchSelection(demo);
</script>
<style lang="sass">
@ -482,11 +271,7 @@ watchEffect((onCleanup) => {
justify-content: space-between
>*
flex: 0 0 30%
// >:nth-child(2)
// flex: 0 0 22%
// >:nth-child(3)
// flex: 0 1 28%
.stake-arrow
align-self: center
font-size: 30px
</style>
</style>

View file

@ -0,0 +1,274 @@
import { describe, it, expect, vi, beforeEach } from 'vitest'
import { ref, nextTick } from 'vue'
import { useSnatchSelection } from '../useSnatchSelection'
import { usePositions } from '../usePositions'
import { useStake } from '../useStake'
import { useWallet } from '../useWallet'
import { useStatCollection } from '../useStatCollection'
import { useAdjustTaxRate } from '../useAdjustTaxRates'
// Mock all composables
vi.mock('../usePositions', () => ({
usePositions: vi.fn()
}))
vi.mock('../useStake', () => ({
useStake: vi.fn()
}))
vi.mock('../useWallet', () => ({
useWallet: vi.fn()
}))
vi.mock('../useStatCollection', () => ({
useStatCollection: vi.fn()
}))
vi.mock('../useAdjustTaxRates', () => ({
useAdjustTaxRate: vi.fn()
}))
vi.mock('kraiken-lib', () => ({
calculateSnatchShortfall: vi.fn((outstandingStake, stakingShares, stakeTotalSupply) => {
return stakingShares > outstandingStake ? 0n : outstandingStake - stakingShares
}),
selectSnatchPositions: vi.fn((candidates, options) => {
if (candidates.length === 0) {
return { selected: [], remainingShortfall: options.shortfallShares }
}
return {
selected: candidates,
remainingShortfall: 0n,
maxSelectedTaxRateIndex: candidates[candidates.length - 1].taxRateIndex
}
}),
minimumTaxRate: vi.fn(() => 0.01)
}))
describe('useSnatchSelection', () => {
beforeEach(() => {
// Reset all mocks
vi.clearAllMocks()
// Setup default mock values with proper refs
vi.mocked(usePositions).mockReturnValue({
activePositions: ref([])
} as any)
vi.mocked(useStake).mockReturnValue({
stakingAmountShares: 0n,
taxRate: 1.0
} as any)
vi.mocked(useWallet).mockReturnValue({
account: { address: '0x123' }
} as any)
// Mock with realistic values for local computation
// stakeTotalSupply is typically 10^(18+7) = 10^25 from contract
// kraikenTotalSupply is dynamic but starts around 10^25
vi.mocked(useStatCollection).mockReturnValue({
stakeTotalSupply: 10000000000000000000000000n, // 10^25
kraikenTotalSupply: 10000000000000000000000000n, // 10^25
outstandingStake: 500n
} as any)
vi.mocked(useAdjustTaxRate).mockReturnValue({
taxRates: [{ year: 1 }]
} as any)
})
it('should initialize with empty snatchable positions', () => {
const { snatchablePositions } = useSnatchSelection()
expect(snatchablePositions.value).toEqual([])
})
it('should handle no active positions', () => {
const { snatchablePositions, floorTax } = useSnatchSelection()
expect(snatchablePositions.value).toEqual([])
expect(floorTax.value).toBe(1)
})
it('should handle no shortfall', () => {
vi.mocked(useStatCollection).mockReturnValue({
stakeTotalSupply: 1000n,
outstandingStake: 100n
})
vi.mocked(useStake).mockReturnValue({
stakingAmountShares: 900n,
taxRate: 1.0
})
const { snatchablePositions, openPositionsAvailable } = useSnatchSelection()
expect(snatchablePositions.value).toEqual([])
expect(openPositionsAvailable.value).toBe(true)
})
it('should filter out positions with higher tax rate', async () => {
vi.mocked(usePositions).mockReturnValue({
activePositions: ref([
{
positionId: 1n,
owner: '0x456',
harbDeposit: 100n,
taxRate: 2.0,
taxRateIndex: 1,
iAmOwner: false
}
])
} as any)
vi.mocked(useStake).mockReturnValue({
stakingAmountShares: 100n,
taxRate: 1.0
} as any)
const { snatchablePositions } = useSnatchSelection()
// Wait for watchEffect to run
await new Promise(resolve => setTimeout(resolve, 0))
expect(snatchablePositions.value).toEqual([])
})
it('should filter out owned positions by default', async () => {
vi.mocked(usePositions).mockReturnValue({
activePositions: ref([
{
positionId: 1n,
owner: '0x123',
harbDeposit: 100n,
taxRate: 0.5,
taxRateIndex: 1,
iAmOwner: true
}
])
} as any)
const { snatchablePositions } = useSnatchSelection()
await new Promise(resolve => setTimeout(resolve, 0))
expect(snatchablePositions.value).toEqual([])
})
it('should include owned positions when demo mode is enabled', async () => {
const position = {
positionId: 1n,
owner: '0x123',
harbDeposit: 100n,
taxRate: 0.005, // 0.5% tax rate (less than maxTaxRate)
taxRateIndex: 1,
iAmOwner: true
}
vi.mocked(usePositions).mockReturnValue({
activePositions: ref([position])
} as any)
vi.mocked(useStake).mockReturnValue({
stakingAmountShares: 100n,
taxRate: 1.0 // Will be converted to 0.01 (1%) decimal
} as any)
// Need outstandingStake > stakingAmountShares to create shortfall
vi.mocked(useStatCollection).mockReturnValue({
stakeTotalSupply: 10000000000000000000000000n,
kraikenTotalSupply: 10000000000000000000000000n,
outstandingStake: 500n
} as any)
const { snatchablePositions } = useSnatchSelection(true)
// Wait for watchEffect to run (no longer async)
await nextTick()
expect(snatchablePositions.value).toContainEqual(position)
})
it('should handle partial fills', async () => {
const position1 = {
positionId: 1n,
owner: '0x456',
harbDeposit: 100n,
taxRate: 0.005, // 0.5% tax rate
taxRateIndex: 1,
iAmOwner: false
}
const position2 = {
positionId: 2n,
owner: '0x789',
harbDeposit: 200n,
taxRate: 0.006, // 0.6% tax rate
taxRateIndex: 2,
iAmOwner: false
}
vi.mocked(usePositions).mockReturnValue({
activePositions: ref([position1, position2])
} as any)
vi.mocked(useStake).mockReturnValue({
stakingAmountShares: 150n,
taxRate: 1.0 // Will be converted to 0.01 (1%) decimal
} as any)
// Need outstandingStake > stakingAmountShares to create shortfall
vi.mocked(useStatCollection).mockReturnValue({
stakeTotalSupply: 10000000000000000000000000n,
kraikenTotalSupply: 10000000000000000000000000n,
outstandingStake: 500n
} as any)
const { snatchablePositions } = useSnatchSelection()
// Wait for watchEffect to run
await nextTick()
expect(snatchablePositions.value).toEqual([position1, position2])
})
it('should update floor tax based on selected positions', async () => {
const position = {
positionId: 1n,
owner: '0x456',
harbDeposit: 100n,
taxRate: 0.005, // 0.5% tax rate
taxRateIndex: 1,
iAmOwner: false
}
vi.mocked(usePositions).mockReturnValue({
activePositions: ref([position])
} as any)
vi.mocked(useStake).mockReturnValue({
stakingAmountShares: 100n,
taxRate: 1.0 // Will be converted to 0.01 (1%) decimal
} as any)
// Need outstandingStake > stakingAmountShares to create shortfall
vi.mocked(useStatCollection).mockReturnValue({
stakeTotalSupply: 10000000000000000000000000n,
kraikenTotalSupply: 10000000000000000000000000n,
outstandingStake: 500n
} as any)
vi.mocked(useAdjustTaxRate).mockReturnValue({
taxRates: [
{ year: 1 },
{ year: 2 },
{ year: 3 }
]
} as any)
const { floorTax } = useSnatchSelection()
// Wait for watchEffect to run
await nextTick()
// Floor tax should be taxRates[maxSelectedTaxRateIndex + 1]
// Position has taxRateIndex: 1, so nextIndex = 2, taxRates[2] = { year: 3 }
expect(floorTax.value).toBe(3)
})
})

View file

@ -0,0 +1,180 @@
import { ref, watchEffect, computed } from 'vue'
import { usePositions, type Position } from './usePositions'
import { useStake } from './useStake'
import { useWallet } from './useWallet'
import { useStatCollection } from './useStatCollection'
import { useAdjustTaxRate } from './useAdjustTaxRates'
import {
calculateSnatchShortfall,
selectSnatchPositions,
minimumTaxRate,
type SnatchablePosition,
} from 'kraiken-lib'
/**
* Converts Kraiken token assets to shares using the same formula as Stake.sol:
* shares = (assets * stakeTotalSupply) / kraikenTotalSupply
*
* @param assets - Amount of Kraiken tokens
* @param kraikenTotalSupply - Total supply of Kraiken tokens
* @param stakeTotalSupply - Total supply of stake shares (constant from contract)
* @returns Number of shares corresponding to the assets
*/
function assetsToSharesLocal(
assets: bigint,
kraikenTotalSupply: bigint,
stakeTotalSupply: bigint
): bigint {
if (kraikenTotalSupply === 0n) {
return 0n
}
// Equivalent to: assets.mulDiv(stakeTotalSupply, kraikenTotalSupply, Math.Rounding.Down)
return (assets * stakeTotalSupply) / kraikenTotalSupply
}
export function useSnatchSelection(demo = false) {
const { activePositions } = usePositions()
const stake = useStake()
const wallet = useWallet()
const statCollection = useStatCollection()
const adjustTaxRate = useAdjustTaxRate()
const snatchablePositions = ref<Position[]>([])
const shortfallShares = ref<bigint>(0n)
const floorTax = ref(1)
let selectionRun = 0
const openPositionsAvailable = computed(() => shortfallShares.value <= 0n)
function getMinFloorTax() {
const minRate = minimumTaxRate(activePositions.value, 0)
return Math.round(minRate * 100)
}
watchEffect((onCleanup) => {
const runId = ++selectionRun
let cancelled = false
onCleanup(() => {
cancelled = true
})
// No longer async since we compute shares locally
const compute = () => {
if (statCollection.stakeTotalSupply === 0n) {
shortfallShares.value = 0n
if (!cancelled && runId === selectionRun) {
snatchablePositions.value = []
floorTax.value = getMinFloorTax()
}
return
}
const stakingShares = stake.stakingAmountShares ?? 0n
const shortfall = calculateSnatchShortfall(
statCollection.outstandingStake,
stakingShares,
statCollection.stakeTotalSupply,
2n,
10n
)
shortfallShares.value = shortfall
if (shortfall <= 0n) {
if (!cancelled && runId === selectionRun) {
snatchablePositions.value = []
floorTax.value = getMinFloorTax()
}
return
}
const maxTaxRateDecimal = (stake.taxRate ?? 0) / 100
const includeOwned = demo
const recipient = wallet.account.address ?? null
const eligiblePositions = activePositions.value.filter((position: Position) => {
if (position.taxRate >= maxTaxRateDecimal) {
return false
}
if (!includeOwned && position.iAmOwner) {
return false
}
return true
})
if (eligiblePositions.length === 0) {
if (!cancelled && runId === selectionRun) {
snatchablePositions.value = []
floorTax.value = getMinFloorTax()
}
return
}
const candidates: SnatchablePosition[] = []
// Compute shares locally using the same formula as Stake.sol
for (const position of eligiblePositions) {
const shares = assetsToSharesLocal(
position.harbDeposit,
statCollection.kraikenTotalSupply,
statCollection.stakeTotalSupply
)
candidates.push({
id: position.positionId,
owner: position.owner,
stakeShares: shares,
taxRate: position.taxRate,
taxRateIndex: position.taxRateIndex,
})
}
const selection = selectSnatchPositions(candidates, {
shortfallShares: shortfall,
maxTaxRate: maxTaxRateDecimal,
includeOwned,
recipientAddress: recipient,
})
if (cancelled || runId !== selectionRun) {
return
}
if (selection.remainingShortfall > 0n) {
snatchablePositions.value = []
floorTax.value = getMinFloorTax()
return
}
const positionById = new Map<bigint, Position>()
for (const position of activePositions.value) {
positionById.set(position.positionId, position)
}
const selectedPositions = selection.selected
.map((candidate) => positionById.get(candidate.id))
.filter((value): value is Position => Boolean(value))
snatchablePositions.value = selectedPositions
if (selection.maxSelectedTaxRateIndex !== undefined) {
const nextIndex = selection.maxSelectedTaxRateIndex + 1
const option =
adjustTaxRate.taxRates[nextIndex] ??
adjustTaxRate.taxRates[selection.maxSelectedTaxRateIndex]
floorTax.value = option ? option.year : getMinFloorTax()
} else {
floorTax.value = getMinFloorTax()
}
}
compute()
})
return {
snatchablePositions,
shortfallShares,
floorTax,
openPositionsAvailable,
}
}

16
web-app/vitest.config.ts Normal file
View file

@ -0,0 +1,16 @@
import { defineConfig } from 'vitest/config'
import vue from '@vitejs/plugin-vue'
import { fileURLToPath } from 'node:url'
export default defineConfig({
plugins: [vue()],
test: {
environment: 'jsdom',
globals: true,
},
resolve: {
alias: {
'@': fileURLToPath(new URL('./src', import.meta.url))
}
}
})