refactor: use slack's internal markdown converter

go.mod

@@ -6,7 +6,7 @@ toolchain go1.21.4
 
 require (
 	github.com/cli/go-gh v1.2.1
-	github.com/rneatherway/slack v0.0.0-20240323132214-0af54ceb5c65
+	github.com/rneatherway/slack v0.0.0-20240412070247-8ea7ec9fab1c
 	github.com/spf13/cobra v1.6.1
 	github.com/spf13/pflag v1.0.5
 	nhooyr.io/websocket v1.8.7

go.sum

@@ -114,8 +114,8 @@ github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qq
 github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
-github.com/rneatherway/slack v0.0.0-20240323132214-0af54ceb5c65 h1:aKxOcmudHNIZz2C0ncYCoRIiHAP1Js4EMsmOPG19eDQ=
-github.com/rneatherway/slack v0.0.0-20240323132214-0af54ceb5c65/go.mod h1:2WA0D8ytQf+d/hE4QqppWRjFOz86WFG6XX8rpsRLHT8=
+github.com/rneatherway/slack v0.0.0-20240412070247-8ea7ec9fab1c h1:P6rQJVjkF3pLp1nCJbE/S82nEV5ilx2AVoUY4PwkC5g=
+github.com/rneatherway/slack v0.0.0-20240412070247-8ea7ec9fab1c/go.mod h1:2WA0D8ytQf+d/hE4QqppWRjFOz86WFG6XX8rpsRLHT8=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/spf13/cobra v1.6.1 h1:o94oiPyS4KD1mPy2fmcYYHHfCxLqYjJOhGsCHFZtEzA=
 github.com/spf13/cobra v1.6.1/go.mod h1:IOw/AERYS7UzyrGinqmz6HLUo219MORXGxhbaJUqzrY=

internal/markdown/markdown.go

@@ -2,77 +2,20 @@ package markdown
 
 import (
 	"fmt"
-	"regexp"
 	"sort"
-	"strconv"
 	"strings"
 	"time"
 
 	"github.com/rneatherway/gh-slack/internal/slackclient"
+	"github.com/rneatherway/slack/pkg/markdown"
 )
 
-var userRE = regexp.MustCompile("<@[A-Z0-9]+>")
-var linkRE = regexp.MustCompile(`<(https?://[^|>]+)\|([^>]+)>`)
-var openCodefence = regexp.MustCompile("(?m)^```")
-var closeCodefence = regexp.MustCompile("(?m)(.)```$")
-
-type UserProvider interface {
-	UsernameForID(string) (string, error)
-}
-
-func interpolateUsers(client UserProvider, s string) (string, error) {
-	userLocations := userRE.FindAllStringIndex(s, -1)
-	out := &strings.Builder{}
-	last := 0
-	for _, userLocation := range userLocations {
-		start := userLocation[0]
-		end := userLocation[1]
-
-		username, err := client.UsernameForID(s[start+2 : end-1])
-		if err != nil {
-			return "", err
-		}
-		out.WriteString(s[last:start])
-		out.WriteString("`@")
-		out.WriteString(username)
-		out.WriteRune('`')
-		last = end
-	}
-	out.WriteString(s[last:])
-
-	return out.String(), nil
-}
-
-func parseUnixTimestamp(s string) (*time.Time, error) {
-	tsParts := strings.Split(s, ".")
-	if len(tsParts) != 2 {
-		return nil, fmt.Errorf("timestamp '%s' is not in <seconds>.<milliseconds> format", s)
-	}
-
-	seconds, err := strconv.ParseInt(tsParts[0], 10, 64)
-	if err != nil {
-		return nil, err
-	}
-
-	nanos, err := strconv.ParseInt(tsParts[1], 10, 64)
-	if err != nil {
-		return nil, err
-	}
-
-	result := time.Unix(seconds, nanos)
-	return &result, nil
-}
-
-func convert(client UserProvider, b *strings.Builder, s string) error {
-	text, err := interpolateUsers(client, s)
+func convert(client *slackclient.SlackClient, b *strings.Builder, s string) error {
+	text, err := markdown.Convert(client, s)
 	if err != nil {
 		return err
 	}
 
-	text = linkRE.ReplaceAllString(text, "[$2]($1)")
-	text = openCodefence.ReplaceAllString(text, "```\n")
-	text = closeCodefence.ReplaceAllString(text, "$1\n```")
-
 	for _, line := range strings.Split(text, "\n") {
 		// TODO: Might be a good idea to escape 'line'
 		fmt.Fprintf(b, "> %s\n", line)
@@ -87,7 +30,7 @@ func FromMessages(client *slackclient.SlackClient, history *slackclient.HistoryR
 	msgTimes := make(map[string]time.Time, len(messages))
 
 	for _, message := range messages {
-		tm, err := parseUnixTimestamp(message.Ts)
+		tm, err := markdown.ParseUnixTimestamp(message.Ts)
 		if err != nil {
 			return "", err
 		}

internal/markdown/markdown_test.go

@@ -1,7 +1,6 @@
 package markdown
 
 import (
-	"fmt"
 	"strings"
 	"testing"
 
@@ -127,79 +126,3 @@ func TestFromMessagesSeparatesMessagesFromSameUserWhenNotAdjacent(t *testing.T)
 		t.Fatal("expected:\n\n", expected, "\n\ngot:\n\n", actual)
 	}
 }
-
-func TestUserRE(t *testing.T) {
-	results := userRE.FindAllStringIndex("<@UP7UAV3NH> <@UPA5ANVNJ> hello", -1)
-	if len(results) != 2 {
-		t.Errorf("results length %d", len(results))
-	}
-	if !(results[0][0] == 0 && results[0][1] == 12) {
-		t.Errorf("first match %v", results[0])
-	}
-	if !(results[1][0] == 13 && results[1][1] == 25) {
-		t.Errorf("second match %v", results[1])
-	}
-}
-
-type TestUserProvider struct {
-	counter int
-}
-
-func (c *TestUserProvider) UsernameForID(id string) (string, error) {
-	c.counter += 1
-	return fmt.Sprintf("test_username_%d", c.counter), nil
-}
-
-func TestInterpolateUsers(t *testing.T) {
-	table := [][]string{
-		{"<@UP7UAV3NH>", "`@test_username_1`"},
-		{"<@UP7UAV3NH> hi hi", "`@test_username_1` hi hi"},
-		{"hi<@UP7UAV3NH> hi hi", "hi`@test_username_1` hi hi"},
-		{"<@UP7UAV3NH> hello <@UP756V3NH>", "`@test_username_1` hello `@test_username_2`"},
-		{"<@UP7UAV3NH> <@UP756V3NH> hello", "`@test_username_1` `@test_username_2` hello"},
-	}
-
-	for _, test := range table {
-		input := test[0]
-		expected := test[1]
-		actual, _ := interpolateUsers(&TestUserProvider{}, input)
-
-		if actual != expected {
-			t.Errorf("expected %q, actual %q", expected, actual)
-		}
-	}
-}
-
-func TestLinkify(t *testing.T) {
-	table := [][]string{
-		{"Hello <https://example.com|text> end", "Hello [text](https://example.com) end"},
-		{"Hello <https://example.com|text> end and here is another link <http://github.com|GitHub!!> go check it out", "Hello [text](https://example.com) end and here is another link [GitHub!!](http://github.com) go check it out"},
-	}
-
-	for _, test := range table {
-		input := test[0]
-		expected := test[1]
-		actual := linkRE.ReplaceAllString(input, "[$2]($1)")
-
-		if actual != expected {
-			t.Errorf("expected %q, actual %q", expected, actual)
-		}
-	}
-}
-
-func TestFixCodefence(t *testing.T) {
-	table := [][]string{
-		{"```{\n  x: y,\n  a: b\n}```", "```\n{\n  x: y,\n  a: b\n}\n```"},
-	}
-
-	for _, test := range table {
-		input := test[0]
-		expected := test[1]
-		actual := openCodefence.ReplaceAllLiteralString(input, "```\n")
-		actual = closeCodefence.ReplaceAllString(actual, "$1\n```")
-
-		if actual != expected {
-			t.Errorf("expected %q, actual %q", expected, actual)
-		}
-	}
-}