ekzyis/delphi.market
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add order page

Browse Source
This commit is contained in:
ekzyis 2023-09-09 22:52:50 +02:00
parent 58901e8d7e
commit 04ce96069b
12 changed files with 248 additions and 52 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
init.sql
View File

@ -23,15 +23,19 @@ CREATE EXTENSION "uuid-ossp";
CREATE TABLE shares(
id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
market_id INTEGER REFERENCES markets(id),
description TEXT NOT NULL,
quantity BIGINT NOT NULL DEFAULT 0
description TEXT NOT NULL
);
CREATE TYPE order_side AS ENUM ('BUY', 'SELL');
CREATE TABLE trades(
CREATE TABLE orders(
id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
share_id UUID NOT NULL REFERENCES shares(id),
pubkey TEXT NOT NULL REFERENCES users(pubkey),
side ORDER_SIDE NOT NULL,
quantity BIGINT NOT NULL,
msats BIGINT NOT NULL
price BIGINT NOT NULL
);
CREATE TABLE trades(
id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
order_id_1 UUID NOT NULL REFERENCES orders(id),
order_id_2 UUID NOT NULL REFERENCES orders(id)
);

83
pages/bmarket_order.html Normal file
View File

@ -0,0 +1,83 @@
<!DOCTYPE html>
<html>
<head>
<title>delphi.market</title>
<link rel="icon" type="image/x-icon" href="/favicon.ico" />
<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png" />
<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png" />
<link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png" />
<link rel="manifest" href="/site.webmanifest" />
<link rel="stylesheet" href="/index.css" />
<link rel="stylesheet" href="/market.css" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="theme-color" content="#091833" />
{{ if eq .ENV "development" }}
<script defer src="/hotreload.js"></script>
{{ end }}
</head>
<body>
<header class="flex flex-row text-center justify-center pt-1">
<nav>
<a href="/">home</a>
{{ if .session }}
<form action='/logout' method='post'>
<button type='submit'>logout</button>
</form>
{{ else }} <a href="/login">login</a> {{ end }}
</nav>
</header>
<div class="container flex flex-column text-center">
<code>
<strong>
<pre>
_ _
_ __ ___ __ _ _ __| | _____| |_
| '_ ` _ \ / _` | '__| |/ / _ \ __|
| | | | | | (_| | | | < __/ |_
|_| |_| |_|\__,_|_| |_|\_\___|\__|</pre>
</strong>
</code>
<div class="font-mono mb-1">{{.Description}}</div>
<div class="flex justify-start mb-1">
<a class="mx-1 selected" href="/market/{{.Id}}">Orders</a>
<a class="mx-1" href="/market/{{.Id}}/trade">Trade</a>
</div>
<div class="flex flex-row justify-center mb-1">
{{ range .Shares }}
<a class="mx-1 {{ if eq $.ShareId .Id }}selected{{end}}"
href="/market/{{$.Id}}/{{.Id}}">{{.Description}}</a>
{{ end }}
</div>
<table>
<tr>
<th class="align-left">Quantity</th>
<th class="align-right">Price</th>
<th class="align-left">Price</th>
<th class="align-right">Quantity</th>
</tr>
{{ range .OrderBook }}
<tr>
<td style="width: auto" class="align-left">{{.BuyQuantity}}</td>
<td style="width: 50%">
<div class="flex">
<span style="width: {{ sub 100 .BuyQuantity}}%"></span>
<span style="width: {{.BuyQuantity}}%" class="align-right yes">{{.BuyPrice}}</span>
</div>
</td>
<td style="width: 50%">
<div class="flex">
<span style="width: {{.SellQuantity}}%" class="align-left no">{{.SellPrice}}</span>
<span style="width: {{ sub 100 .SellQuantity}}%"></span>
</div>
</td>
<td style="width: auto" class="align-right">{{.SellQuantity}}</td>
</tr>
{{ end }}
</table>
</div>
</body>
<script src="/order.js"></script>
</html>

10
pages/bmarket.html → pages/bmarket_trade.html
View File

@ -40,6 +40,10 @@
</strong>
</code>
<div class="font-mono mb-1">{{.Description}}</div>
<div class="flex justify-start mb-1">
<a class="mx-1" href="/market/{{.Id}}">Orders</a>
<a class="mx-1 selected" href="/market/{{.Id}}/trade">Trade</a>
</div>
<div class="flex flex-row justify-center mb-1">
{{ range .Shares }} {{ if eq .Description "YES" }}
<button id="yes-order" class="order-button sx-1 yes">YES</button>
@ -57,7 +61,7 @@
<input id="yes-side" hidden name="side" value="BUY" />
<label>shares</label>
<input id="yes-quantity" type="number" name="quantity" placeholder="quantity" />
<label id="yes-cost-label">cost [sats]</label>
<label>price [sats]</label>
<input id="yes-cost" type="number" name="cost" disabled />
<label id="yes-submit-label">BUY YES shares</label>
<button type="submit">SUBMIT</button>
@ -71,7 +75,7 @@
<input id="no-side" hidden name="side" value="BUY" />
<label>shares</label>
<input id="no-quantity" type="number" name="quantity" placeholder="quantity" />
<label id="no-cost-label">cost [sats]</label>
<label>price [sats]</label>
<input id="no-cost" type="number" name="cost" disabled />
<label id="no-submit-label">BUY NO shares</label>
<button type="submit">SUBMIT</button>
@ -80,6 +84,6 @@
{{ end }}
</div>
</body>
<script src="/bmarket.js"></script>
<script src="/trade.js"></script>
</html>

17
public/index.css
View File

@ -20,6 +20,10 @@ a:hover {
background: #8787A4;
color: #ffffff;
}
a.selected {
background: #8787A4;
color: #ffffff;
}
nav > a {
margin: 0 3px;
}
@ -130,7 +134,20 @@ ul {
.pt-1 {
padding-top: 1em;
}
.mx-1 {
margin: 0 .2em;
}
.word-wrap {
word-wrap: break-word;
}
.align-left {
text-align: left;
}
.align-center {
text-align: center;
}
.align-right {
text-align: right;
}

8
public/market.css
View File

@ -20,11 +20,11 @@
background-color: rgba(20,158,97,.24);
color: #35df8d;
}
.yes:hover {
button.yes:hover {
background-color: #35df8d;
color: white;
}
.yes.selected {
button.yes.selected {
background-color: #35df8d;
color: white;
}
@ -33,11 +33,11 @@
background-color: rgba(245,57,94,.24);
color: #ff7386;
}
.no:hover {
button.no:hover {
background-color: #ff7386;
color: white;
}
.no.selected {
button.no.selected {
background-color: #ff7386;
color: white;
}

11
public/order.css Normal file
View File

@ -0,0 +1,11 @@
.align-left {
text-align: left;
}
.align-center {
text-align: center;
}
.align-right {
text-align: right;
}

0
public/order.js Normal file
View File

11
public/bmarket.js → public/trade.js
View File

@ -43,6 +43,7 @@ function toggleYesForm() {
noForm.style.display = "none"
}
yesOrderBtn.onclick = toggleYesForm
toggleYesForm()
function toggleNoForm() {
resetInputs()
@ -62,27 +63,23 @@ function showBuyForm() {
resetInputs()
yesBuyBtn.classList.add("selected")
yesSellBtn.classList.remove("selected")
yesCostLabel.textContent = 'cost [sats]'
yesSubmitLabel.textContent = 'BUY YES shares'
yesSideInput.value = "BUY"
noBuyBtn.classList.add("selected")
noSellBtn.classList.remove("selected")
noCostLabel.textContent = 'cost [sats]'
noSubmitLabel.textContent = 'BUY YES shares'
noSubmitLabel.textContent = 'BUY NO shares'
noSideInput.value = "BUY"
}
function showSellForm() {
resetInputs()
yesBuyBtn.classList.remove("selected")
yesSellBtn.classList.add("selected")
yesCostLabel.textContent = 'payout [sats]'
yesSubmitLabel.textContent = 'SELL NO shares'
yesSideInput.value = "SELL"
noBuyBtn.classList.remove("selected")
noSellBtn.classList.add("selected")
noCostLabel.textContent = 'payout [sats]'
noSubmitLabel.textContent = 'SELL YES shares'
noSideInput.value = "SELL"
}
@ -130,5 +127,5 @@ function updatePrice(marketId, shareId) {
yesCostDisplay.value = parseFloat(Math.abs(rBody.cost)).toFixed(3)
}
}
yesQuantityInput.oninput = debounce(250)(updatePrice, marketId, yesShareId)
noQuantityInput.onchange = debounce(250)(updatePrice, marketId, noShareId)
// yesQuantityInput.oninput = debounce(250)(updatePrice, marketId, yesShareId)
// noQuantityInput.onchange = debounce(250)(updatePrice, marketId, noShareId)

20
src/funcs.go Normal file
View File

@ -0,0 +1,20 @@
package main
import (
"html/template"
)
func add(arg1 int, arg2 int) int {
return arg1 + arg2
}
func sub(arg1 int, arg2 int) int {
return arg1 - arg2
}
var (
FuncMap template.FuncMap = template.FuncMap{
"add": add,
"sub": sub,
}
)

8
src/lib.go Normal file
View File

@ -0,0 +1,8 @@
package main
func Max(x, y int) int {
if x < y {
return y
}
return x
}

113
src/router.go
View File

@ -12,7 +12,6 @@ import (
"github.com/labstack/echo/v4"
"github.com/skip2/go-qrcode"
"golang.org/x/exp/slices"
)
type Template struct {
@ -30,7 +29,20 @@ type Share struct {
Id string
MarketId int
Description string
Quantity int
}
type Order struct {
ShareId string
Side string
Price int
Quantity int
}
type OrderBookEntry struct {
BuyQuantity int
BuyPrice int
SellPrice int
SellQuantity int
}
type MarketDataRequest struct {
@ -196,7 +208,7 @@ func logout(c echo.Context) error {
return c.Redirect(http.StatusSeeOther, "/")
}
func bmarket(c echo.Context) error {
func trades(c echo.Context) error {
marketId := c.Param("id")
var market Market
err := db.QueryRow("SELECT id, description FROM markets WHERE id = $1 AND active = true", marketId).Scan(&market.Id, &market.Description)
@ -205,7 +217,7 @@ func bmarket(c echo.Context) error {
} else if err != nil {
return err
}
rows, err := db.Query("SELECT id, market_id, description, quantity FROM shares WHERE market_id = $1 ORDER BY description DESC", marketId)
rows, err := db.Query("SELECT id, market_id, description FROM shares WHERE market_id = $1 ORDER BY description DESC", marketId)
if err != nil {
return err
}
@ -213,35 +225,30 @@ func bmarket(c echo.Context) error {
var shares []Share
for rows.Next() {
var share Share
rows.Scan(&share.Id, &share.MarketId, &share.Description, &share.Quantity)
rows.Scan(&share.Id, &share.MarketId, &share.Description)
shares = append(shares, share)
}
data := map[string]any{
"session": c.Get("session"),
"ENV": ENV,
"Id": market.Id,
"Description": market.Description,
"Shares": shares,
}
return c.Render(http.StatusOK, "bmarket.html", data)
return c.Render(http.StatusOK, "bmarket_trade.html", data)
}
func marketCost(c echo.Context) error {
var req MarketDataRequest
err := c.Bind(&req)
if err != nil {
c.Logger().Error(err)
return c.JSON(http.StatusBadRequest, map[string]string{"status": "ERROR", "reason": "bad request"})
}
func orders(c echo.Context) error {
marketId := c.Param("id")
shareId := c.Param("sid")
var market Market
err = db.QueryRow("SELECT id, description, funding FROM markets WHERE id = $1 AND active = true", marketId).Scan(&market.Id, &market.Description, &market.Funding)
err := db.QueryRow("SELECT id, description FROM markets WHERE id = $1 AND active = true", marketId).Scan(&market.Id, &market.Description)
if err == sql.ErrNoRows {
return c.JSON(http.StatusBadRequest, map[string]string{"status": "ERROR", "reason": "market not found"})
return echo.NewHTTPError(http.StatusNotFound, "Not Found")
} else if err != nil {
c.Logger().Error(err)
return c.JSON(http.StatusInternalServerError, map[string]string{"status": "ERROR", "reason": "internal server error"})
return err
}
rows, err := db.Query("SELECT id, market_id, description, quantity FROM shares WHERE market_id = $1", marketId)
rows, err := db.Query("SELECT id, market_id, description FROM shares WHERE market_id = $1 ORDER BY description DESC", marketId)
if err != nil {
return err
}
@ -249,23 +256,67 @@ func marketCost(c echo.Context) error {
var shares []Share
for rows.Next() {
var share Share
rows.Scan(&share.Id, &share.MarketId, &share.Description, &share.Quantity)
rows.Scan(&share.Id, &share.MarketId, &share.Description)
shares = append(shares, share)
}
dq1 := req.Quantity
// share 1 is always the share which is bought or sold
share1idx := slices.IndexFunc(shares, func(s Share) bool { return s.Id == req.ShareId })
share2idx := 0
if share1idx == 0 {
share2idx = 1
if shareId == "" {
c.Redirect(http.StatusTemporaryRedirect, fmt.Sprintf("/market/%s/%s", marketId, shares[0].Id))
}
q1 := shares[share1idx].Quantity
q2 := shares[share2idx].Quantity
if req.OrderSide == "SELL" {
dq1 = -dq1
rows, err = db.Query(""+
"SELECT share_id, side, price, SUM(quantity)"+
"FROM orders WHERE share_id = $1"+
"GROUP BY (share_id, side, price)"+
"ORDER BY share_id DESC, side DESC, price DESC", shareId)
if err != nil {
return err
}
cost := BinaryLMSR(1, market.Funding, q1, q2, dq1)
return c.JSON(http.StatusOK, map[string]string{"status": "OK", "cost": fmt.Sprint(cost)})
defer rows.Close()
buyOrders := []Order{}
sellOrders := []Order{}
for rows.Next() {
var order Order
rows.Scan(&order.ShareId, &order.Side, &order.Price, &order.Quantity)
if order.Side == "BUY" {
buyOrders = append(buyOrders, Order{Price: order.Price, Quantity: order.Quantity})
} else {
sellOrders = append(sellOrders, Order{Price: order.Price, Quantity: order.Quantity})
}
}
orderBook := []OrderBookEntry{}
buySum := 0
sellSum := 0
for i := 0; i < Max(len(buyOrders), len(sellOrders)); i++ {
buyPrice, buyQuantity, sellQuantity, sellPrice := 0, 0, 0, 0
if i < len(buyOrders) {
buyPrice = buyOrders[i].Price
buyQuantity = buySum + buyOrders[i].Quantity
}
if i < len(sellOrders) {
sellPrice = sellOrders[i].Price
sellQuantity = sellSum + sellOrders[i].Quantity
}
buySum += buyQuantity
sellSum += sellQuantity
orderBook = append(
orderBook,
OrderBookEntry{
BuyQuantity: buyQuantity,
BuyPrice: buyPrice,
SellPrice: sellPrice,
SellQuantity: sellQuantity,
},
)
}
data := map[string]any{
"session": c.Get("session"),
"ENV": ENV,
"Id": market.Id,
"Description": market.Description,
"ShareId": shareId,
"Shares": shares,
"OrderBook": orderBook,
}
return c.Render(http.StatusOK, "bmarket_order.html", data)
}
func serve500(c echo.Context) {

7
src/server.go
View File

@ -45,7 +45,7 @@ func init() {
flag.Parse()
e = echo.New()
t = &Template{
templates: template.Must(template.ParseGlob("pages/**.html")),
templates: template.Must(template.New("").Funcs(FuncMap).ParseGlob("pages/**.html")),
}
COMMIT_LONG_SHA = execCmd("git", "rev-parse", "HEAD")
COMMIT_SHORT_SHA = execCmd("git", "rev-parse", "--short", "HEAD")
@ -63,8 +63,9 @@ func main() {
e.GET("/api/login", verifyLogin)
e.GET("/api/session", checkSession)
e.POST("/logout", logout)
e.GET("/market/:id", sessionGuard(bmarket))
e.POST("/api/market/:id/cost", sessionGuard(marketCost))
e.GET("/market/:id", sessionGuard(orders))
e.GET("/market/:id/:sid", sessionGuard(orders))
e.GET("/market/:id/trade", sessionGuard(trades))
e.Use(middleware.LoggerWithConfig(middleware.LoggerConfig{
Format: "${time_custom} ${method} ${uri} ${status}\n",
CustomTimeFormat: "2006-01-02 15:04:05.00000-0700",