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add transactions to email body

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This commit is contained in:
Peter Rounce 2022-09-25 10:33:24 +00:00
parent ab1b7c464f
commit 94267c47cf
2 changed files with 112 additions and 10 deletions
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64
database.go
View file

@ -313,7 +313,8 @@ func db_get_card_from_card_id(card_id int) (*card, error) {
sqlStatement := `SELECT card_id, k2_cmac_key, uid, ` + sqlStatement := `SELECT card_id, k2_cmac_key, uid, ` +
`last_counter_value, lnurlw_request_timeout_sec, ` + `last_counter_value, lnurlw_request_timeout_sec, ` +
` lnurlw_enable, tx_limit_sats, day_limit_sats, email_enable, email_address` + `lnurlw_enable, tx_limit_sats, day_limit_sats, ` +
`email_enable, email_address, card_name ` +
`FROM cards WHERE card_id=$1;` `FROM cards WHERE card_id=$1;`
row := db.QueryRow(sqlStatement, card_id) row := db.QueryRow(sqlStatement, card_id)
err = row.Scan( err = row.Scan(
@ -326,7 +327,8 @@ func db_get_card_from_card_id(card_id int) (*card, error) {
&c.tx_limit_sats, &c.tx_limit_sats,
&c.day_limit_sats, &c.day_limit_sats,
&c.email_enable, &c.email_enable,
&c.email_address) &c.email_address,
&c.card_name)
if err != nil { if err != nil {
return &c, err return &c, err
} }
@ -593,8 +595,62 @@ func db_get_card_totals(card_id int) (int, error) {
return day_total_sats, nil return day_total_sats, nil
} }
//TODO: func db_get_card_txs(card_id int) ([]transaction, error) {
//func db_get_card_txs(card_id int) ([]transaction, error) { // open the database
db, err := db_open()
if err != nil {
return nil, err
}
defer db.Close()
// query the database
//TODO: LIMIT 10 + COUNT
sqlStatement := `SELECT card_id, ` +
`card_payments.card_payment_id AS tx_id, 'payment' AS tx_type, ` +
`amount_msats as tx_amount_msats, ` +
`TO_CHAR(payment_status_time, 'DD/MM/YYYY HH:MI:SS') AS tx_time ` +
`FROM card_payments WHERE card_id = $1 AND payment_status != 'FAILED' ` +
`AND amount_msats != 0 UNION SELECT card_id, card_receipts.card_receipt_id AS tx_id, ` +
`'receipt' AS tx_type, amount_msats as tx_amount_msats, ` +
`TO_CHAR(receipt_status_time, 'DD/MM/YYYY HH:MI:SS') AS tx_time ` +
`FROM card_receipts WHERE card_id = $1 ` +
`AND receipt_status = 'SETTLED' ORDER BY tx_time DESC`
rows, err := db.Query(sqlStatement, card_id)
if err != nil {
return nil, err
}
defer rows.Close()
// prepare the results
var transactions []transaction
// Loop through rows, using Scan to assign column data to struct fields.
for rows.Next() {
var t transaction
err := rows.Scan(&t.card_id, &t.tx_id, &t.tx_type, &t.tx_amount_msats, &t.tx_time)
if err != nil {
return transactions, err
}
transactions = append(transactions, t)
}
err = rows.Err()
if err != nil {
return transactions, err
}
return transactions, nil
}
func db_get_card_total(card_id int) (int, error) { func db_get_card_total(card_id int) (int, error) {

52
email.go
View file

@ -9,19 +9,65 @@ import (
log "github.com/sirupsen/logrus" log "github.com/sirupsen/logrus"
"os" "os"
"strconv" "strconv"
"strings"
) )
func send_balance_email(recipient_email string, card_id int) { func send_balance_email(recipient_email string, card_id int) {
c, err := db_get_card_from_card_id(card_id)
if err != nil {
log.Warn(err.Error())
return
}
card_total_sats, err := db_get_card_total(card_id) card_total_sats, err := db_get_card_total(card_id)
if err != nil { if err != nil {
log.Warn(err.Error()) log.Warn(err.Error())
return return
} }
txs, err := db_get_card_txs(card_id)
if err != nil {
log.Warn(err.Error())
return
}
subject := c.card_name + " balance = " + strconv.Itoa(card_total_sats) + " sats"
// add transactions to the email body
var html_body_sb strings.Builder
var text_body_sb strings.Builder
html_body_sb.WriteString("<!DOCTYPE html><html><head><style> table, " +
"th, td { border: 1px solid black; border-collapse: collapse; } " +
"</style></head><body>")
html_body_sb.WriteString("<h3>transactions</h3><table><tr><th>date</th><th>action</th><th>amount</th>")
text_body_sb.WriteString("transactions\n\n")
for _, tx := range txs {
html_body_sb.WriteString(
"<tr>" +
"<td>" + tx.tx_time + "</td>" +
"<td>" + tx.tx_type + "</td>" +
"<td style='text-align:right'>" + strconv.Itoa(tx.tx_amount_msats / 1000) + "</td>" +
"</tr>")
text_body_sb.WriteString(tx.tx_type +
" " + strconv.Itoa(tx.tx_amount_msats / 1000))
}
html_body_sb.WriteString("</table></body></html>")
html_body := html_body_sb.String()
text_body := text_body_sb.String()
send_email(recipient_email, send_email(recipient_email,
"bolt card balance: " + strconv.Itoa(card_total_sats) + " sats", subject,
"html body", html_body,
"text body") text_body)
} }
// https://docs.aws.amazon.com/sdk-for-go/v1/developer-guide/ses-example-send-email.html // https://docs.aws.amazon.com/sdk-for-go/v1/developer-guide/ses-example-send-email.html