From 9199d31e772d5bca0483d7396f55241f0e1c5733 Mon Sep 17 00:00:00 2001
From: Tim Olson <>
Date: Sat, 16 Dec 2023 16:54:05 -0400
Subject: [PATCH] diagonal order form

---
 src/components/DiagonalOrder.vue | 89 +++++++-------------------------
 src/components/LadderOrder.vue   |  4 +-
 src/components/LimitPrice.vue    | 13 +++--
 src/components/NavDrawer.vue     |  2 +-
 src/components/Order.vue         |  2 +-
 src/components/TimeEntry.vue     | 65 +++++++++++++++++++++++
 src/components/TimedOrder.vue    |  2 +-
 src/misc.js                      |  5 ++
 src/orderbuild.js                | 46 ++++++++++++-----
 src/store/store.js               |  5 +-
 src/views/OrdersView.vue         |  3 +-
 11 files changed, 143 insertions(+), 93 deletions(-)
 create mode 100644 src/components/TimeEntry.vue

diff --git a/src/components/DiagonalOrder.vue b/src/components/DiagonalOrder.vue
index aeed518..ec94301 100644
--- a/src/components/DiagonalOrder.vue
+++ b/src/components/DiagonalOrder.vue
@@ -1,23 +1,15 @@
 <template>
-  <order title="Diagonal" subtitle="Trade trends and channels" :tranches="buildTranches" :valid="validOrder">
+  <order title="Diagonal" subtitle="Trends and channels" :tranches="buildTranches" :valid="validOrder">
     <!-- todo times -->
-    <span><i>Coming soon!</i></span>
-<!--
-    <limit-price :required="true" label="start price" :show-price="false"/>
-    <limit-price store-var="limitPrice2" :required="true" label="end price"/>
-    <v-table>
-      <thead>
-        <tr><td>Fraction</td><td>Amount</td><td>Price</td></tr>
-      </thead>
-      <tbody>
-        <tr v-for="(r,i) in rungsFmt">
-          <td>{{(100*fractions[i]).toFixed(1)}}%</td>
-          <td>{{(amounts[i]).toPrecision(5)}} {{os.amountToken.symbol}}</td>
-          <td>{{r}}</td>
-        </tr>
-      </tbody>
-    </v-table>
--->
+    <div class="title">Line Point A</div>
+    <v-divider/>
+    <time-entry v-model="time1" class="mb-0" hide-details="true"/>
+    <limit-price v-model="price1" label="Price A" :required="true"/>
+    <div class="title">Line Point B</div>
+    <v-divider/>
+    <time-entry v-model="time2" hide-details="true"/>
+    <limit-price v-model="price2" label="Price B" :required="true"/>
+    <div><i>Backend support for diagonal lines is coming soon...</i></div>
   </order>
 </template>
 
@@ -26,65 +18,22 @@ import {useOrderStore} from "@/store/store";
 import LimitPrice from "@/components/LimitPrice.vue";
 import Order from "@/components/Order.vue";
 import {computed, ref} from "vue";
-import {applyLimit} from "@/orderbuild.js";
+import {applyLimit, applyLinePoints} from "@/orderbuild.js";
 import {validateRequired, validateTranches} from "@/validate.js";
 import {MAX_FRACTION, newTranche} from "@/blockchain/orderlib.js";
+import TimeEntry from "@/components/TimeEntry.vue";
 
 const os = useOrderStore()
 
-const skew = ref(0)
-const rungs = computed(()=>{
-  if( !os.limitPrice || !os.limitPrice2 )
-    return []
-  const n = os.tranches;
-  const a = parseFloat(os.limitPrice);
-  const b = parseFloat(os.limitPrice2);
-  if( n < 1 || !a || !b ) return []
-  if( n === 1 ) return [(a+b)/2]
-  // num >= 2
-  const result = []
-  const delta = (b-a)/(n-1)
-  for( let i=0; i<n; i++ )
-    result.push(a+i*delta)
-  return result
-})
-const rungsFmt = computed(()=>{
-  return rungs.value.map((r)=>r.toPrecision(5)) // todo precisions
-})
-const fractions = computed(()=>{
-  const n = os.tranches
-  const s = skew.value / 100
-  const result = []
-  if( s === 1 ) {
-    result.push(1)
-    for( let i=1; i<n; i++ )
-      result.push(0)
-  }
-  else if( s === -1 ) {
-    for( let i=1; i<n; i++ )
-      result.push(0)
-    result.push(1)
-  }
-  else {
-    const mean = 1/n
-    for( let i=0; i<n; i++ )
-      result.push( mean * ( 1 - s * (2*i/(n-1)-1) ) )
-  }
-  return result
-})
-const amounts = computed( ()=>fractions.value.map((f)=>f*os.totalAmount) )
+const time1 = ref(new Date())
+const price1 = ref(null)
+const time2 = ref(new Date())
+const price2 = ref(null)
 
 function buildTranches() {
-  const ts = []
-  const n = os.tranches
-  for( let i=0; i<n; i++ ) {
-    // todo optional deadline
-    const fraction = Math.min(MAX_FRACTION, Math.ceil(MAX_FRACTION * fractions.value[i]) )
-    const tranche = newTranche({fraction})
-    applyLimit(tranche, rungs.value[i])
-    ts.push(tranche)
-  }
-  return ts
+  const t = newTranche();
+  applyLinePoints(t, time1.value, price1.value, time2.value, price2.value)
+  return [t]
 }
 
 function validOrder() {
diff --git a/src/components/LadderOrder.vue b/src/components/LadderOrder.vue
index ff6f463..ace0e26 100644
--- a/src/components/LadderOrder.vue
+++ b/src/components/LadderOrder.vue
@@ -1,7 +1,7 @@
 <template>
   <order title="Ladder" subtitle="Multiple price levels" :tranches="buildTranches" :valid="validOrder">
-    <limit-price :required="true" label="start price" :show-price="false"/>
-    <limit-price store-var="limitPrice2" :required="true" label="end price"/>
+    <limit-price v-model="os.limitPrice" :required="true" label="start price" :show-price="false"/>
+    <limit-price v-model="os.limitPrice2" :required="true" label="end price"/>
     <v-text-field label="Tranches" type="number" variant="outlined" aria-valuemin="1" min="1" max="255"
                   v-model="os.tranches" :rules="[validateRequired,validateTranches]">
       <template v-slot:append-inner>tranches</template>
diff --git a/src/components/LimitPrice.vue b/src/components/LimitPrice.vue
index 3d8b0bc..7d6ede2 100644
--- a/src/components/LimitPrice.vue
+++ b/src/components/LimitPrice.vue
@@ -1,7 +1,7 @@
 <template>
-  <v-text-field v-model="os[storeVar]" :label="getLabel" type="number"
+  <v-text-field v-model="mv" :label="getLabel" type="number"
                 variant="outlined" aria-valuemin="0" min="0"
-                clearable :rules="rules" v-auto-select>
+                :clearable="!required && clearable" :rules="rules" v-auto-select>
     <template v-slot:append-inner>
       <v-btn variant="outlined" @click="os.inverted=!os.inverted">
         {{ os.pairSymbol }}
@@ -26,10 +26,17 @@ import {vAutoSelect} from "@/misc.js";
 
 const os = useOrderStore()
 const props = defineProps({
+  modelValue: {required: true},
   required: {default: false},
   label: {default: null},
-  storeVar: {default: 'limitPrice'},
   showPrice: {default: true},
+  clearable: {default: true},
+})
+const emit = defineEmits(['update:modelValue'])
+
+const mv = computed({
+  get() {return props.modelValue},
+  set(v) {emit('update:modelValue', v)}
 })
 const rules = computed(()=>props.required ? [validateAmount, validateRequired] : [validateAmount])
 
diff --git a/src/components/NavDrawer.vue b/src/components/NavDrawer.vue
index 6e107be..35f3102 100644
--- a/src/components/NavDrawer.vue
+++ b/src/components/NavDrawer.vue
@@ -7,7 +7,7 @@
       <v-list-subheader title="Dexorders"/>
       <v-list-item prepend-icon="mdi-clock-outline" title="DCA" subtitle="Spread order across time" @click="nav('twap')"></v-list-item>
       <v-list-item prepend-icon="mdi-menu" title="Ladder" subtitle="Multiple price levels" @click="nav('ladder')"></v-list-item>
-      <v-list-item prepend-icon="mdi-vector-line" title="Diagonal" subtitle="Trade trends and channels" @click="nav('diagonal')"></v-list-item>
+      <v-list-item prepend-icon="mdi-vector-line" title="Diagonal" subtitle="Trends and channels" @click="nav('diagonal')"></v-list-item>
       <v-list-item prepend-icon="mdi-hammer-wrench" title="Custom" subtitle="Create your own" @click="nav('custom')"></v-list-item>
     </v-list>
   </v-navigation-drawer>
diff --git a/src/components/Order.vue b/src/components/Order.vue
index e7a02eb..24b2c62 100644
--- a/src/components/Order.vue
+++ b/src/components/Order.vue
@@ -11,7 +11,7 @@
         </div>
       </v-card-item>
       <v-card-actions class="d-flex justify-space-evenly mb-4">
-        <v-btn variant="outlined" color="red">Cancel</v-btn>
+        <v-btn variant="outlined" color="red" @click="$router.push('/vault')">Cancel</v-btn>
         <v-btn variant="flat" color="green" :disabled="!valid()" @click="placeOrder">Place Dexorder</v-btn>
       </v-card-actions>
     </phone-card>
diff --git a/src/components/TimeEntry.vue b/src/components/TimeEntry.vue
new file mode 100644
index 0000000..14ace6e
--- /dev/null
+++ b/src/components/TimeEntry.vue
@@ -0,0 +1,65 @@
+<template>
+  <div class="d-flex">
+    <v-text-field type="number" min="1" max="31" v-model="day" :label="weekday" :hide-details="hideDetails" style="min-width: 3em; width: 3em" class="all"/>
+    <v-select v-model="month" :items="monthItems" :hide-details="hideDetails" style="min-width: 6em; width: 6em" class="all"/>
+    <v-text-field type="number" v-model="year" :hide-details="hideDetails" style="min-width: 5em; width: 5em" class="all"/>
+    <v-text-field type="time" v-model="time" :hide-details="hideDetails" style="min-width: 8em; width: 8em" class="all"/>
+  </div>
+</template>
+
+<script setup>
+import {useStore} from "@/store/store";
+import {computed} from "vue";
+
+const s = useStore()
+const props = defineProps(['modelValue', 'hideDetails'])
+const emit = defineEmits(['update:modelValue'])
+
+const day = computed({
+  get() { return s.utc ? props.modelValue.getUTCDate() : props.modelValue.getDate() },
+  set(v) { update(year.value, month.value, v, time.value)},
+})
+const weekdayFormat = computed(()=>new Intl.DateTimeFormat(s.utc ? 'utc':undefined,{weekday:"short"}))
+const weekday = computed(()=>weekdayFormat.value.format(props.modelValue))
+const month = computed({
+  get() { return s.utc ? props.modelValue.getUTCMonth() : props.modelValue.getMonth() },
+  set(v) { update(year.value, v, day.value, time.value)},
+})
+const year = computed({
+  get() { return s.utc ? props.modelValue.getUTCFullYear() : props.modelValue.getFullYear() },
+  set(v) { update(v, month.value, day.value, time.value)},
+})
+const time = computed({
+  get() { return '' + (s.utc ? `${props.modelValue.getUTCHours()}:${props.modelValue.getUTCMinutes()}` : `${props.modelValue.getHours()}:${props.modelValue.getMinutes()}` ) },
+  set(v) { update(year.value, month.value, day.value, v) }
+})
+
+function monthsForLocale(localeName = undefined, monthFormat = 'long') {
+  const format = new Intl.DateTimeFormat(localeName, {month: monthFormat}).format;
+  return [...Array(12).keys()]
+      .map((m) => format(new Date(Date.UTC(2000, m+1))));
+}
+
+let m=0
+const monthItems = monthsForLocale(undefined, 'short').map((v)=>{return {title:v, value:m++}})
+
+function buildDate(y, m, d, t) {
+  const [hours,minutes] = t.split(':')
+  console.log('buildDate', y, m, d, hours, minutes)
+  return s.utc ? new Date(Date.UTC(y, m, d, hours, minutes))
+      : new Date(y, m, d, hours, minutes);
+}
+
+function update(y,m,d,t) {
+  const date = buildDate(y, m, d, t);
+  emit('update:modelValue', date)
+}
+</script>
+
+<style scoped lang="scss">
+@use "src/styles/vars" as *;
+
+.all {
+  margin-bottom: 0;
+}
+</style>
diff --git a/src/components/TimedOrder.vue b/src/components/TimedOrder.vue
index 79594bc..919d9a5 100644
--- a/src/components/TimedOrder.vue
+++ b/src/components/TimedOrder.vue
@@ -1,7 +1,7 @@
 <template>
   <order title="DCA / TWAP" subtitle="Multiple tranches over a time range" :tranches="buildTranches" :valid="validOrder">
     <Tranches/>
-    <LimitPrice/>
+    <LimitPrice v-model="os.limitPrice"/>
   </order>
 </template>
 
diff --git a/src/misc.js b/src/misc.js
index bd470a1..25c2769 100644
--- a/src/misc.js
+++ b/src/misc.js
@@ -77,3 +77,8 @@ export function dateString(seconds) {
     const date = new Date(seconds*1000)
     return _dateFormat.format(date)
 }
+
+
+export function timestamp(date) {
+    return Math.round(date.getTime() / 1000)
+}
diff --git a/src/orderbuild.js b/src/orderbuild.js
index 8ae2291..8978da7 100644
--- a/src/orderbuild.js
+++ b/src/orderbuild.js
@@ -1,31 +1,53 @@
-import {routeInverted} from "@/misc.js";
+import {routeInverted, timestamp} from "@/misc.js";
 import {MAX_FRACTION, newTranche} from "@/blockchain/orderlib.js";
 import {useOrderStore} from "@/store/store.js";
 import {encodeIEE754} from "@/blockchain/common.js";
 
 
-export function applyLimit(tranche, price=null) {
-    const os = useOrderStore()
+export function applyLimit(tranche, price=null, isAbove=null) {
     if( price === null ) {
+        const os = useOrderStore()
         price = os.limitPrice
         if (!price)
             return
     }
+
+    applyLine(tranche, price, 0, isAbove)
+}
+
+
+export function applyLinePoints(tranche, date0, price0, date1, price1, isAbove=null) {
+    const os = useOrderStore()
+    if( !date0 || !price0 && price0!==0 || !date1 || !price1 && price1!==0 )
+        return
+
+    const t0 = timestamp(date0);
+    const t1 = timestamp(date1);
+    const slope = (price1-price0)/(t1-t0)
+    const intercept = price1 - slope * t1
+    applyLine(tranche, intercept, slope, isAbove)
+}
+
+
+export function applyLine(tranche, intercept, slope, isAbove=null) {
+    // intercept and slope are still in "human" units of decimal-adjusted prices
+    const os = useOrderStore()
     const route = os.route
     const inverted = routeInverted(route)
-    const isAbove = os.limitIsMinimum ^ inverted
-    const isRatio = false // todo ratios
-    const decimals = 10 ** (os.tokenA.decimals - os.tokenB.decimals)
-    const limit = encodeIEE754(inverted ? decimals / price : price / decimals)
-    tranche.marketOrder = false;
+    const scale = 10 ** (os.tokenA.decimals - os.tokenB.decimals)
+    const m = encodeIEE754(inverted ? scale / slope : slope / scale)
+    const b = encodeIEE754(inverted ? scale / intercept : intercept / scale)
+    if( isAbove === null )
+        isAbove = os.limitIsMinimum ^ inverted
     if( isAbove ) {
-        tranche.minIntercept = limit;
-        tranche.minSlope = 0;
+        tranche.minIntercept = b;
+        tranche.minSlope = m;
     }
     else {
-        tranche.maxIntercept = limit;
-        tranche.maxSlope = 0;
+        tranche.maxIntercept = b;
+        tranche.maxSlope = m;
     }
+    tranche.marketOrder = false;
 }
 
 export function timesliceTranches() {
diff --git a/src/store/store.js b/src/store/store.js
index 2cfe4fb..a2dc2e8 100644
--- a/src/store/store.js
+++ b/src/store/store.js
@@ -29,7 +29,7 @@ import {computed, ref} from "vue";
 
 
 export const useStore = defineStore('app', ()=> {
-  const nav = ref(false)
+  const nav = ref(false) // controls opening navigation drawer
 
   const _chainId = ref(null)
   const _chainInfo = ref({})
@@ -136,6 +136,7 @@ export const useOrderStore = defineStore('order', ()=> {
   const timeUnitIndex = ref(0)
   const routes = ref([])
   const routesPending = ref(false)
+  const utc = ref(false)
 
   const validOrder = computed(() => amount.value > 0 && routes.value.length > 0)
   const route = computed(() => routes.value.length === 0 ? null : routes.value[0])
@@ -164,6 +165,6 @@ export const useOrderStore = defineStore('order', ()=> {
   return {
     tokenA, tokenB, buy, inverted, amount, amountIsTokenA, amountIsTotal, limitPrice, limitPrice2, tranches,
     interval, intervalIsTotal, timeUnitIndex, routes, routesPending, validOrder, route, base, quote, pairSymbol,
-    limitIsMinimum, amountToken, amountIsInput, setDefaultTokens, totalAmount, trancheAmount,
+    limitIsMinimum, amountToken, amountIsInput, setDefaultTokens, totalAmount, trancheAmount, utc,
   }
 })
diff --git a/src/views/OrdersView.vue b/src/views/OrdersView.vue
index 9fb0cb7..b40967a 100644
--- a/src/views/OrdersView.vue
+++ b/src/views/OrdersView.vue
@@ -1,7 +1,8 @@
 <template>
   <needs-provider>
     <needs-signer>
-      <phone-card title="Vault Orders">
+      <phone-card>
+        <v-card-title><v-icon icon="mdi-information-outline" size="small" color="grey-darken-1"/> Vault Orders</v-card-title>
         <v-card-item>
           <orders/>
         </v-card-item>