add icon url, urls and time to mint info endpoint

.env.mint.example

@@ -9,6 +9,8 @@ MINT_DESCRIPTION="short mint description"
 MINT_DESCRIPTION_LONG="a long description of the mint"
 MINT_CONTACT_INFO=[["email", "[email protected]"], ["nostr", "npub..."]]
 MINT_MOTD="message to the users of the mint"
+MINT_ICON_URL="https://<mint>/icon.jpeg"
+MINT_URLS=["https://<mint>", "https://<mint2>"]
 
 # mint limits (these are optional but recommended to use)
 # max balance (in sats). Minting new ecash will be disabled if this balance is reached

cashu/nuts/nut06/nut06.go

@@ -17,6 +17,9 @@ type MintInfo struct {
 	LongDescription string        `json:"description_long,omitempty"`
 	Contact         []ContactInfo `json:"contact,omitempty"`
 	Motd            string        `json:"motd,omitempty"`
+	IconURL         string        `json:"icon_url,omitempty"`
+	URLs            []string      `json:"urls,omitempty"`
+	Time            int64         `json:"time,omitempty"`
 	Nuts            NutsMap       `json:"nuts"`
 }
 
@@ -35,6 +38,9 @@ func (mi *MintInfo) UnmarshalJSON(data []byte) error {
 		LongDescription string          `json:"description_long,omitempty"`
 		Contact         json.RawMessage `json:"contact,omitempty"`
 		Motd            string          `json:"motd,omitempty"`
+		IconURL         string          `json:"icon_url,omitempty"`
+		URLs            []string        `json:"urls,omitempty"`
+		Time            int64           `json:"time,omitempty"`
 		Nuts            NutsMap         `json:"nuts"`
 	}
 
@@ -48,6 +54,9 @@ func (mi *MintInfo) UnmarshalJSON(data []byte) error {
 	mi.Description = tempInfo.Description
 	mi.LongDescription = tempInfo.LongDescription
 	mi.Motd = tempInfo.Motd
+	mi.IconURL = tempInfo.IconURL
+	mi.URLs = tempInfo.URLs
+	mi.Time = tempInfo.Time
 	mi.Nuts = tempInfo.Nuts
 	json.Unmarshal(tempInfo.Contact, &mi.Contact)
 

cmd/mint/mint.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"log"
+	"net/url"
 	"os"
 	"os/signal"
 	"path/filepath"
@@ -82,19 +83,17 @@ func configFromEnv() (*mint.Config, error) {
 	}
 
 	mintInfo := mint.MintInfo{
-		Name:        os.Getenv("MINT_NAME"),
-		Description: os.Getenv("MINT_DESCRIPTION"),
+		Name:            os.Getenv("MINT_NAME"),
+		Description:     os.Getenv("MINT_DESCRIPTION"),
+		LongDescription: os.Getenv("MINT_DESCRIPTION_LONG"),
+		Motd:            os.Getenv("MINT_MOTD"),
 	}
 
-	mintInfo.LongDescription = os.Getenv("MINT_DESCRIPTION_LONG")
-	mintInfo.Motd = os.Getenv("MINT_MOTD")
-
 	contact := os.Getenv("MINT_CONTACT_INFO")
 	var mintContactInfo []nut06.ContactInfo
 	if len(contact) > 0 {
 		var infoArr [][]string
-		err := json.Unmarshal([]byte(contact), &infoArr)
-		if err != nil {
+		if err := json.Unmarshal([]byte(contact), &infoArr); err != nil {
 			return nil, fmt.Errorf("error parsing contact info: %v", err)
 		}
 
@@ -105,8 +104,30 @@ func configFromEnv() (*mint.Config, error) {
 	}
 	mintInfo.Contact = mintContactInfo
 
-	var lightningClient lightning.Client
+	if len(os.Getenv("MINT_ICON_URL")) > 0 {
+		iconURL, err := url.Parse(os.Getenv("MINT_ICON_URL"))
+		if err != nil {
+			return nil, fmt.Errorf("invalid icon url: %v", err)
+		}
+		mintInfo.IconURL = iconURL.String()
+	}
 
+	urls := os.Getenv("MINT_URLS")
+	if len(urls) > 0 {
+		urlList := []string{}
+		if err := json.Unmarshal([]byte(urls), &urlList); err != nil {
+			return nil, fmt.Errorf("error parsing list of URLs: %v", err)
+		}
+		for _, urlString := range urlList {
+			mintURL, err := url.Parse(urlString)
+			if err != nil {
+				return nil, fmt.Errorf("invalid url: %v", err)
+			}
+			mintInfo.URLs = append(mintInfo.URLs, mintURL.String())
+		}
+	}
+
+	var lightningClient lightning.Client
 	switch os.Getenv("LIGHTNING_BACKEND") {
 	case "Lnd":
 		// read values for setting up LND

mint/config.go

@@ -35,6 +35,8 @@ type MintInfo struct {
 	LongDescription string
 	Contact         []nut06.ContactInfo
 	Motd            string
+	IconURL         string
+	URLs            []string
 }
 
 type MintMethodSettings struct {

mint/mint.go

@@ -1415,12 +1415,15 @@ func (m *Mint) SetMintInfo(mintInfo MintInfo) {
 		LongDescription: mintInfo.LongDescription,
 		Contact:         mintInfo.Contact,
 		Motd:            mintInfo.Motd,
+		IconURL:         mintInfo.IconURL,
+		URLs:            mintInfo.URLs,
+		Time:            time.Now().Unix(),
 		Nuts:            nuts,
 	}
 	m.mintInfo = info
 }
 
-func (m *Mint) RetrieveMintInfo() (nut06.MintInfo, error) {
+func (m Mint) RetrieveMintInfo() (nut06.MintInfo, error) {
 	seed, err := m.db.GetSeed()
 	if err != nil {
 		return nut06.MintInfo{}, err