client/{webserver,app}: Update Market Making UI

Updates the market making UI to reflect the updated way in which market
making works. A JSON configuration file, the same that would be used by
the RPC server, is stored on disk, and the UI gives users an interactive
way to read/update the config file, and also to start/stop market making.

The updated UI includes two screens, `/mm` and `/mmsettings`. `/mm` allows
users to see each of the market for which a market maker is configured,
allows the user to add/remove market makers, and links to the `/mmsettings`
page of each market maker. The `/mmsettings` page allows users to configure
each setting of each of the market makers.

The markets page is also updated to not allow users to place orders manually
while market making is running.

client/app/config.go

@@ -149,7 +149,7 @@ type Config struct {
 // Web creates a configuration for the webserver. This is a Config method
 // instead of a WebConfig method because Language is an app-level setting used
 // by both core and rpcserver.
-func (cfg *Config) Web(c *core.Core, log dex.Logger, utc bool) *webserver.Config {
+func (cfg *Config) Web(c *core.Core, mm *mm.MarketMaker, log dex.Logger, utc bool) *webserver.Config {
 	addr := cfg.WebAddr
 	host, _, err := net.SplitHostPort(addr)
 	if err == nil && host != "" {
@@ -166,8 +166,12 @@ func (cfg *Config) Web(c *core.Core, log dex.Logger, utc bool) *webserver.Config
 		keyFile = filepath.Join(cfg.AppData, "web.key")
 	}
 
+	_, _, mmCfgPath := setNet(cfg.AppData, cfg.Net.String())
+
 	return &webserver.Config{
 		Core:          c,
+		MarketMaker:   mm,
+		MMCfgPath:     mmCfgPath,
 		Addr:          cfg.WebAddr,
 		CustomSiteDir: cfg.SiteDir,
 		Logger:        log,
@@ -288,13 +292,13 @@ func ResolveConfig(appData string, cfg *Config) error {
 	switch {
 	case cfg.Testnet:
 		cfg.Net = dex.Testnet
-		defaultDBPath, defaultLogPath = setNet(appData, "testnet")
+		defaultDBPath, defaultLogPath, _ = setNet(appData, "testnet")
 	case cfg.Simnet:
 		cfg.Net = dex.Simnet
-		defaultDBPath, defaultLogPath = setNet(appData, "simnet")
+		defaultDBPath, defaultLogPath, _ = setNet(appData, "simnet")
 	default:
 		cfg.Net = dex.Mainnet
-		defaultDBPath, defaultLogPath = setNet(appData, "mainnet")
+		defaultDBPath, defaultLogPath, _ = setNet(appData, "mainnet")
 	}
 	defaultHost := DefaultHostByNetwork(cfg.Net)
 
@@ -335,10 +339,11 @@ func ResolveConfig(appData string, cfg *Config) error {
 // files. It returns a suggested path for the database file and a log file. If
 // using a file rotator, the directory of the log filepath as parsed  by
 // filepath.Dir is suitable for use.
-func setNet(applicationDirectory, net string) (dbPath, logPath string) {
+func setNet(applicationDirectory, net string) (dbPath, logPath, mmCfgPath string) {
 	netDirectory := filepath.Join(applicationDirectory, net)
 	logDirectory := filepath.Join(netDirectory, "logs")
 	logFilename := filepath.Join(logDirectory, "dexc.log")
+	mmCfgFilename := filepath.Join(netDirectory, "mm_cfg.json")
 	err := os.MkdirAll(netDirectory, 0700)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "failed to create net directory: %v\n", err)
@@ -349,7 +354,7 @@ func setNet(applicationDirectory, net string) (dbPath, logPath string) {
 		fmt.Fprintf(os.Stderr, "failed to create log directory: %v\n", err)
 		os.Exit(1)
 	}
-	return filepath.Join(netDirectory, "dexc.db"), logFilename
+	return filepath.Join(netDirectory, "dexc.db"), logFilename, mmCfgFilename
 }
 
 // DefaultHostByNetwork accepts configured network and returns the network

client/asset/btc/btc.go

@@ -146,18 +146,36 @@ var (
 	multiFundingOpts = []*asset.ConfigOption{
 		{
 			Key:         multiSplitKey,
-			DisplayName: "External fee rate estimates",
+			DisplayName: "Allow multi split",
 			Description: "Allow split funding transactions that pre-size outputs to " +
 				"prevent excessive overlock.",
 			IsBoolean:    true,
 			DefaultValue: true,
 		},
 		{
 			Key:         multiSplitBufferKey,
-			DisplayName: "External fee rate estimates",
+			DisplayName: "Multi split buffer",
 			Description: "Add an integer percent buffer to split output amounts to " +
-				"facilitate output reuse",
-			DefaultValue: true,
+				"facilitate output reuse. This is only required for quote assets.",
+			DefaultValue:   5,
+			QuoteAssetOnly: true,
+			DependsOn:      multiSplitKey,
+			Range: &asset.XYRange{
+				Start: asset.XYRangePoint{
+					Label: "0%",
+					X:     0,
+					Y:     0,
+				},
+				End: asset.XYRangePoint{
+					Label: "100%",
+					X:     100,
+					Y:     100,
+				},
+				XUnit:  "%",
+				YUnit:  "%",
+				RoundX: true,
+				RoundY: true,
+			},
 		},
 	}
 

client/asset/dcr/dcr.go

@@ -234,18 +234,36 @@ var (
 	multiFundingOpts = []*asset.ConfigOption{
 		{
 			Key:         multiSplitKey,
-			DisplayName: "External fee rate estimates",
+			DisplayName: "Allow multi split",
 			Description: "Allow split funding transactions that pre-size outputs to " +
 				"prevent excessive overlock.",
 			IsBoolean:    true,
 			DefaultValue: true,
 		},
 		{
 			Key:         multiSplitBufferKey,
-			DisplayName: "External fee rate estimates",
+			DisplayName: "Multi split buffer",
 			Description: "Add an integer percent buffer to split output amounts to " +
-				"facilitate output reuse",
-			DefaultValue: true,
+				"facilitate output reuse. This is only required for quote assets.",
+			DefaultValue:   5,
+			QuoteAssetOnly: true,
+			DependsOn:      multiSplitKey,
+			Range: &asset.XYRange{
+				Start: asset.XYRangePoint{
+					Label: "0%",
+					X:     0,
+					Y:     0,
+				},
+				End: asset.XYRangePoint{
+					Label: "100%",
+					X:     100,
+					Y:     100,
+				},
+				XUnit:  "%",
+				YUnit:  "%",
+				RoundX: true,
+				RoundY: true,
+			},
 		},
 	}
 

client/asset/interface.go

@@ -316,8 +316,13 @@ type ConfigOption struct {
 	Repeatable string `json:"repeatable"`
 	// RepeatN signals how many times text input should be repeated, replicating
 	// this option N times.
-	RepeatN  int32 `json:"repeatN"`
-	Required bool  `json:"required"`
+	RepeatN        int32 `json:"repeatN"`
+	Required       bool  `json:"required"`
+	QuoteAssetOnly bool  `json:"quoteAssetOnly"`
+	// DependsOn is the key of another config option that if is set to true,
+	// this config option will be shown.
+	DependsOn string   `json:"dependsOn"`
+	Range     *XYRange `json:"range"`
 
 	// ShowByDefault to show or not options on "hide advanced options".
 	ShowByDefault bool `json:"showByDefault,omitempty"`

client/asset/options.go

@@ -15,10 +15,12 @@ type BooleanConfig struct {
 // linear, e.g. y = mx + b. The value submitted to FundOrder/Swap/Redeem should
 // specify the x value.
 type XYRange struct {
-	Start XYRangePoint `json:"start"`
-	End   XYRangePoint `json:"end"`
-	XUnit string       `json:"xUnit"`
-	YUnit string       `json:"yUnit"`
+	Start  XYRangePoint `json:"start"`
+	End    XYRangePoint `json:"end"`
+	XUnit  string       `json:"xUnit"`
+	YUnit  string       `json:"yUnit"`
+	RoundX bool         `json:"roundX"`
+	RoundY bool         `json:"roundY"`
 }
 
 // XYRangePoint is a point specifying the start or end of an XYRange.

client/cmd/dexc-desktop/app.go

@@ -210,7 +210,7 @@ func mainCore() error {
 		}()
 	}
 
-	webSrv, err := webserver.New(cfg.Web(clientCore, logMaker.Logger("WEB"), utc))
+	webSrv, err := webserver.New(cfg.Web(clientCore, marketMaker, logMaker.Logger("WEB"), utc))
 	if err != nil {
 		return fmt.Errorf("failed creating web server: %w", err)
 	}

client/cmd/dexc-desktop/app_darwin.go

@@ -270,7 +270,7 @@ func mainCore() error {
 
 	// Default to serving the web interface over TLS.
 	cfg.WebTLS = true
-	webSrv, err := webserver.New(cfg.Web(clientCore, logMaker.Logger("WEB"), utc))
+	webSrv, err := webserver.New(cfg.Web(clientCore, marketMaker, logMaker.Logger("WEB"), utc))
 	if err != nil {
 		return fmt.Errorf("failed creating web server: %w", err)
 	}

client/cmd/dexc/main.go

@@ -157,7 +157,7 @@ func runCore(cfg *app.Config) error {
 	}
 
 	if !cfg.NoWeb {
-		webSrv, err := webserver.New(cfg.Web(clientCore, logMaker.Logger("WEB"), utc))
+		webSrv, err := webserver.New(cfg.Web(clientCore, marketMaker, logMaker.Logger("WEB"), utc))
 		if err != nil {
 			return fmt.Errorf("failed creating web server: %w", err)
 		}