268 lines
8.1 KiB
Go
268 lines
8.1 KiB
Go
// Package notify provides a simple interface to send notifications to Slack.
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package notify
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"log/slog"
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"net/http"
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"os"
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"strings"
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"time"
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"terminalShop/pkg/database"
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"terminalShop/pkg/models"
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)
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// slack client
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var slackClient = &http.Client{Timeout: 5 * time.Second}
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// dollars converts cents to dollars
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func dollars(cents int) string {
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return fmt.Sprintf("$%.2f", float64(cents)/100)
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}
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// postSlackMessage POSTs to chat.postMessage and returns (ts, ok). Logs on failure.
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func postSlackMessage(token string, payload map[string]any) (string, bool) {
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body, _ := json.Marshal(payload)
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req, _ := http.NewRequest(http.MethodPost, "https://slack.com/api/chat.postMessage", bytes.NewReader(body))
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req.Header.Set("Content-Type", "application/json; charset=utf-8")
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req.Header.Set("Authorization", "Bearer "+token)
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resp, err := slackClient.Do(req)
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if err != nil {
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slog.Warn("slack post failed", "error", err)
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return "", false
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}
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defer func() { _ = resp.Body.Close() }()
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var parsed struct {
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Ok bool `json:"ok"`
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TS string `json:"ts"`
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Error string `json:"error"`
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}
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_ = json.NewDecoder(resp.Body).Decode(&parsed)
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if !parsed.Ok {
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slog.Warn("slack post non-ok", "error", parsed.Error)
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return "", false
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}
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return parsed.TS, true
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}
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func pinMessage(token, channel, ts string) bool {
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return slackPinCall(token, "https://slack.com/api/pins.add", channel, ts, "already_pinned")
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}
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func unpinMessage(token, channel, ts string) bool {
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return slackPinCall(token, "https://slack.com/api/pins.remove", channel, ts, "no_pin")
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}
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func slackPinCall(token, endpoint, channel, ts, benignErr string) bool {
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body, _ := json.Marshal(map[string]any{"channel": channel, "timestamp": ts})
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req, _ := http.NewRequest(http.MethodPost, endpoint, bytes.NewReader(body))
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req.Header.Set("Content-Type", "application/json; charset=utf-8")
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req.Header.Set("Authorization", "Bearer "+token)
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resp, err := slackClient.Do(req)
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if err != nil {
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slog.Warn("slack pin call failed", "endpoint", endpoint, "error", err)
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return false
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}
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defer func() { _ = resp.Body.Close() }()
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var parsed struct {
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Ok bool `json:"ok"`
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Error string `json:"error"`
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}
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_ = json.NewDecoder(resp.Body).Decode(&parsed)
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if !parsed.Ok && parsed.Error != benignErr {
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slog.Warn("slack pin call non-ok", "endpoint", endpoint, "error", parsed.Error)
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return false
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}
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return true
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}
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func buildReceiptBlocks(order *models.Order) []map[string]any {
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blocks := []map[string]any{
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{"type": "divider"},
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}
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for _, item := range order.Items {
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line := fmt.Sprintf("*%s* × %d\n%s", item.Name, item.Quantity, dollars(item.Price*item.Quantity))
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blocks = append(blocks, map[string]any{
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"type": "section",
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"text": map[string]any{"type": "mrkdwn", "text": line},
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})
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}
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blocks = append(blocks,
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map[string]any{"type": "divider"},
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map[string]any{
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"type": "section",
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"fields": []map[string]any{
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{"type": "mrkdwn", "text": "*Subtotal:*\n" + dollars(order.Subtotal)},
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{"type": "mrkdwn", "text": "*Shipping:*\n" + dollars(order.ShippingCost)},
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{"type": "mrkdwn", "text": "*Total:*\n" + dollars(order.Total)},
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},
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},
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map[string]any{
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"type": "section",
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"text": map[string]any{
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"type": "mrkdwn",
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"text": fmt.Sprintf(":package: *Ship to:*\n%s\n%s\n%s, %s %s",
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order.ShippingName,
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order.ShippingStreet,
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order.ShippingCity,
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order.ShippingZip,
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order.ShippingCountry,
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),
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},
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},
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map[string]any{
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"type": "actions",
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"elements": []map[string]any{
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{
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"type": "button",
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"text": map[string]any{"type": "plain_text", "text": "Buy Label", "emoji": true},
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"value": fmt.Sprintf("%d", order.ID),
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"action_id": "buy_label",
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"style": "primary",
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},
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},
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},
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)
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return blocks
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}
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// SlackOrderPaid posts a compact parent message ("Order #N paid - $X.XX") to
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// the orders channel, persists the resulting ts onto the order, and posts the
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// full receipt as the first thread reply. All subsequent order events
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// (label-buy, tracking updates) should be posted as further thread replies
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// via SlackPostToOrderThread. No-op if SLACK_BOT_TOKEN or SLACK_CHANNEL unset.
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func SlackOrderPaid(order *models.Order) {
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token := os.Getenv("SLACK_BOT_TOKEN")
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channel := os.Getenv("SLACK_CHANNEL")
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if token == "" || channel == "" {
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return
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}
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parentText := fmt.Sprintf(":coffee: Order #%d paid - %s", order.ID, dollars(order.Total))
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ts, ok := postSlackMessage(token, map[string]any{
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"channel": channel,
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"text": parentText,
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})
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if !ok {
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return
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}
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if err := database.GetDB().Model(&models.Order{}).Where("id = ?", order.ID).Update("slack_thread_ts", ts).Error; err != nil {
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slog.Warn("failed to save slack thread ts", "order_id", order.ID, "error", err)
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}
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pinMessage(token, channel, ts)
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_, _ = postSlackMessage(token, map[string]any{
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"channel": channel,
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"thread_ts": ts,
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"text": parentText,
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"blocks": buildReceiptBlocks(order),
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})
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}
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func SlackUnpinOrder(orderID uint) {
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token := os.Getenv("SLACK_BOT_TOKEN")
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channel := os.Getenv("SLACK_CHANNEL")
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if token == "" || channel == "" {
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return
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}
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var order models.Order
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if err := database.GetDB().Select("id", "slack_thread_ts").Where("id = ?", orderID).First(&order).Error; err != nil {
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slog.Warn("failed to look up order for unpin", "order_id", orderID, "error", err)
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return
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}
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if order.SlackThreadTS == nil || *order.SlackThreadTS == "" {
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return
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}
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unpinMessage(token, channel, *order.SlackThreadTS)
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}
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// SlackPostToOrderThread posts a plain-text reply inside the order's thread.
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// Looks up the thread ts from the database. Silent no-op if the order has no
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// saved thread (Slack was disabled when it was created, or post failed earlier).
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func SlackPostToOrderThread(orderID uint, text string) {
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token := os.Getenv("SLACK_BOT_TOKEN")
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channel := os.Getenv("SLACK_CHANNEL")
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if token == "" || channel == "" {
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return
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}
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var order models.Order
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if err := database.GetDB().Select("id", "slack_thread_ts").Where("id = ?", orderID).First(&order).Error; err != nil {
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slog.Warn("failed to look up order for thread post", "order_id", orderID, "error", err)
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return
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}
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if order.SlackThreadTS == nil || *order.SlackThreadTS == "" {
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return
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}
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_, _ = postSlackMessage(token, map[string]any{
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"channel": channel,
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"thread_ts": *order.SlackThreadTS,
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"text": text,
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})
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}
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func SlackPostLabelPurchased(orderID uint, labelURL string, costCents int) {
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token := os.Getenv("SLACK_BOT_TOKEN")
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channel := os.Getenv("SLACK_CHANNEL")
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if token == "" || channel == "" {
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return
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}
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var order models.Order
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if err := database.GetDB().
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Select("id", "carrier", "tracking_number", "tracking_url", "slack_thread_ts").
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Where("id = ?", orderID).First(&order).Error; err != nil {
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slog.Warn("failed to look up order for label-purchased slack post", "order_id", orderID, "error", err)
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return
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}
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if order.SlackThreadTS == nil || *order.SlackThreadTS == "" {
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return
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}
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headLine := fmt.Sprintf(":white_check_mark: Labeled - %s `%s` (%s). <%s|Download label PDF>", order.Carrier, order.TrackingNumber, dollars(costCents), labelURL)
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blocks := []map[string]any{
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{
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"type": "section",
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"text": map[string]any{"type": "mrkdwn", "text": headLine},
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},
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}
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if strings.EqualFold(order.Carrier, "BRING") {
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blocks = append(blocks, markStatusActionBlock(order.ID))
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}
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_, _ = postSlackMessage(token, map[string]any{
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"channel": channel,
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"thread_ts": *order.SlackThreadTS,
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"text": headLine,
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"blocks": blocks,
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})
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}
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func markStatusActionBlock(orderID uint) map[string]any {
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id := fmt.Sprintf("%d", orderID)
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return map[string]any{
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"type": "actions",
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"elements": []map[string]any{
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{"type": "button", "text": map[string]any{"type": "plain_text", "text": "Mark Pre-Transit", "emoji": true}, "value": id, "action_id": "mark_pre_transit"},
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{"type": "button", "text": map[string]any{"type": "plain_text", "text": "Mark In Transit", "emoji": true}, "value": id, "action_id": "mark_in_transit", "style": "primary"},
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{"type": "button", "text": map[string]any{"type": "plain_text", "text": "Mark Delivered", "emoji": true}, "value": id, "action_id": "mark_delivered"},
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},
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}
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}
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var _ = time.Second
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