From 251446d6e45d7b42af6a7995c4568183ea794dc7 Mon Sep 17 00:00:00 2001
From: Ben Visness <bvisness@gmail.com>
Date: Fri, 24 Sep 2021 22:53:00 -0500
Subject: [PATCH] Do jam showcase stuff

---
 src/config/types.go                           |   9 +-
 src/discord/gateway.go                        |  11 +-
 src/discord/showcase.go                       |  12 +-
 .../2021-09-25T023810Z_AddJamSnippetField.go  |  52 ++++++++
 src/templates/src/wheeljam_index.html         | 122 ++++++++++++++++++
 src/website/feed.go                           |   2 +
 src/website/jam.go                            |  51 +++++++-
 src/website/landing.go                        |   2 +
 src/website/showcase.go                       |   2 +
 9 files changed, 253 insertions(+), 10 deletions(-)
 create mode 100644 src/migration/migrations/2021-09-25T023810Z_AddJamSnippetField.go

diff --git a/src/config/types.go b/src/config/types.go
index 20b1292a..eccd2d00 100644
--- a/src/config/types.go
+++ b/src/config/types.go
@@ -72,10 +72,11 @@ type DiscordConfig struct {
 	OAuthClientID     string
 	OAuthClientSecret string
 
-	GuildID           string
-	MemberRoleID      string
-	ShowcaseChannelID string
-	LibraryChannelID  string
+	GuildID              string
+	MemberRoleID         string
+	ShowcaseChannelID    string
+	LibraryChannelID     string
+	JamShowcaseChannelID string
 }
 
 type EpisodeGuide struct {
diff --git a/src/discord/gateway.go b/src/discord/gateway.go
index 1e63d22e..45d7351b 100644
--- a/src/discord/gateway.go
+++ b/src/discord/gateway.go
@@ -582,7 +582,7 @@ func (bot *botInstance) messageCreateOrUpdate(ctx context.Context, msg *Message)
 	}
 
 	if msg.ChannelID == config.Config.Discord.ShowcaseChannelID {
-		err := bot.processShowcaseMsg(ctx, msg)
+		err := bot.processShowcaseMsg(ctx, msg, false)
 		if err != nil {
 			logging.ExtractLogger(ctx).Error().Err(err).Msg("failed to process showcase message")
 			return nil
@@ -590,6 +590,15 @@ func (bot *botInstance) messageCreateOrUpdate(ctx context.Context, msg *Message)
 		return nil
 	}
 
+	if msg.ChannelID == config.Config.Discord.JamShowcaseChannelID {
+		err := bot.processShowcaseMsg(ctx, msg, true)
+		if err != nil {
+			logging.ExtractLogger(ctx).Error().Err(err).Msg("failed to process jam showcase message")
+			return nil
+		}
+		return nil
+	}
+
 	if msg.ChannelID == config.Config.Discord.LibraryChannelID {
 		err := bot.processLibraryMsg(ctx, msg)
 		if err != nil {
diff --git a/src/discord/showcase.go b/src/discord/showcase.go
index f2c26c4c..185c0e3e 100644
--- a/src/discord/showcase.go
+++ b/src/discord/showcase.go
@@ -25,7 +25,8 @@ var reDiscordMessageLink = regexp.MustCompile(`https?://.+?(\s|$)`)
 
 var errNotEnoughInfo = errors.New("Discord didn't send enough info in this event for us to do this")
 
-func (bot *botInstance) processShowcaseMsg(ctx context.Context, msg *Message) error {
+// TODO: Turn this ad-hoc isJam parameter into a tag or something
+func (bot *botInstance) processShowcaseMsg(ctx context.Context, msg *Message, isJam bool) error {
 	switch msg.Type {
 	case MessageTypeDefault, MessageTypeReply, MessageTypeApplicationCommand:
 	default:
@@ -57,10 +58,17 @@ func (bot *botInstance) processShowcaseMsg(ctx context.Context, msg *Message) er
 		return err
 	}
 	if doSnippet, err := AllowedToCreateMessageSnippet(ctx, tx, newMsg.UserID); doSnippet && err == nil {
-		_, err := CreateMessageSnippet(ctx, tx, msg.ID)
+		snippet, err := CreateMessageSnippet(ctx, tx, msg.ID)
 		if err != nil {
 			return oops.New(err, "failed to create snippet in gateway")
 		}
+
+		if isJam {
+			_, err := tx.Exec(ctx, `UPDATE handmade_snippet SET is_jam = TRUE WHERE id = $1`, snippet.ID)
+			if err != nil {
+				return oops.New(err, "failed to mark snippet as a jam snippet")
+			}
+		}
 	} else if err != nil {
 		return oops.New(err, "failed to check snippet permissions in gateway")
 	}
diff --git a/src/migration/migrations/2021-09-25T023810Z_AddJamSnippetField.go b/src/migration/migrations/2021-09-25T023810Z_AddJamSnippetField.go
new file mode 100644
index 00000000..a5a8a30c
--- /dev/null
+++ b/src/migration/migrations/2021-09-25T023810Z_AddJamSnippetField.go
@@ -0,0 +1,52 @@
+package migrations
+
+import (
+	"context"
+	"time"
+
+	"git.handmade.network/hmn/hmn/src/migration/types"
+	"git.handmade.network/hmn/hmn/src/oops"
+	"github.com/jackc/pgx/v4"
+)
+
+func init() {
+	registerMigration(AddJamSnippetField{})
+}
+
+type AddJamSnippetField struct{}
+
+func (m AddJamSnippetField) Version() types.MigrationVersion {
+	return types.MigrationVersion(time.Date(2021, 9, 25, 2, 38, 10, 0, time.UTC))
+}
+
+func (m AddJamSnippetField) Name() string {
+	return "AddJamSnippetField"
+}
+
+func (m AddJamSnippetField) Description() string {
+	return "Add a special field for jam snippets"
+}
+
+func (m AddJamSnippetField) Up(ctx context.Context, tx pgx.Tx) error {
+	_, err := tx.Exec(ctx, `
+		ALTER TABLE handmade_snippet
+			ADD is_jam BOOLEAN NOT NULL DEFAULT FALSE;
+	`)
+	if err != nil {
+		return oops.New(err, "failed to add jam column")
+	}
+
+	return nil
+}
+
+func (m AddJamSnippetField) Down(ctx context.Context, tx pgx.Tx) error {
+	_, err := tx.Exec(ctx, `
+		ALTER TABLE handmade_snippet
+			DROP is_jam;
+	`)
+	if err != nil {
+		return oops.New(err, "failed to drop jam column")
+	}
+
+	return nil
+}
diff --git a/src/templates/src/wheeljam_index.html b/src/templates/src/wheeljam_index.html
index 22c8e02d..194e6fed 100644
--- a/src/templates/src/wheeljam_index.html
+++ b/src/templates/src/wheeljam_index.html
@@ -22,12 +22,19 @@
         <title>Handmade Network</title>
     {{ end }}
 
+    <script src="{{ static "js/templates.js" }}"></script>
+    <script src="{{ static "js/showcase.js" }}"></script>
+
     <link rel="stylesheet" href="{{ static "fonts/mohave/stylesheet.css" }}">
     <link href='https://fonts.googleapis.com/css?family=Fira+Sans:300,400,500,600' rel='stylesheet' type='text/css'>
     <link href='https://fonts.googleapis.com/css?family=Fira+Mono:300,400,500,700' rel='stylesheet' type='text/css'>
     <link rel="stylesheet" type="text/css" href="{{ static "style.css" }}">
 
     <style>
+        :root {
+            --content-background: #f8f8f8;
+        }
+
         body {
             background: linear-gradient(#ab4c47, #a5467d);
         }
@@ -171,6 +178,11 @@
             text-transform: uppercase;
         }
 
+        .showcase-item {
+            background-color: rgba(0, 0, 0, 0.2);
+            border-color: rgba(255, 255, 255, 0.5);
+        }
+
         @media screen and (min-width: 30em) {
             /* not small styles */
 
@@ -256,6 +268,16 @@
             </p>
         </div>
 
+        <div id="showcase-outer-container" class="bg-black-20 pt4 pb3 pb4-ns">
+            <div class="section mw8 margin-center ph3 ph4-l">
+                <h2>Happening right now.</h2>
+                <p>
+                    The jam is underway! These screenshots and videos were shared in #jam-showcase on our <a href="https://discord.gg/hxWxDee" target="_blank">Discord</a>. Join us!
+                </p>
+                <div id="showcase-container" class="mw8 center-layout mh2 mh0-ns"></div>
+            </div>
+        </div>
+
         <div class="section flex-fair mw8 margin-center ph3 ph4-l mv4">
             <h2>Why reinvent the wheel?</h2>
             <p>
@@ -346,6 +368,106 @@
             {{ template "footer.html" . }}
         </div>
     </div>
+
+    {{ template "showcase_templates.html" }}
+
+    <!-- Copy-pasted and mangled from showcase.html  -->
+    <script>
+        const ROW_HEIGHT = 300;
+        const ITEM_SPACING = 4;
+
+        const showcaseItems = JSON.parse("{{ .ShowcaseItemsJSON }}");
+        const addThumbnailFuncs = new Array(showcaseItems.length);
+
+        const showcaseOuterContainer = document.querySelector('#showcase-outer-container');
+        let showcaseContainer = document.querySelector('#showcase-container');
+
+        showcaseOuterContainer.classList.toggle('dn', showcaseItems.length === 0);
+
+        const itemElements = []; // array of arrays
+        for (let i = 0; i < showcaseItems.length; i++) {
+            const item = showcaseItems[i];
+
+            const [itemEl, addThumbnail] = makeShowcaseItem(item);
+            itemEl.container.setAttribute('data-index', i);
+            itemEl.container.setAttribute('data-date', item.date);
+
+            addThumbnailFuncs[i] = addThumbnail;
+            
+            itemElements.push(itemEl.container);
+        }
+
+        function layout() {
+            const width = showcaseContainer.getBoundingClientRect().width;
+            showcaseContainer = emptyElement(showcaseContainer);
+            
+            function addRow(itemEls, rowWidth, container) {
+                const totalSpacing = ITEM_SPACING * (itemEls.length - 1);
+                const scaleFactor = (width / Math.max(rowWidth, width));
+
+                const row = document.createElement('div');
+                row.classList.add('flex');
+                row.classList.toggle('justify-between', rowWidth >= width);
+                row.style.marginBottom = `${ITEM_SPACING}px`;
+                
+                for (const itemEl of itemEls) {
+                    const index = parseInt(itemEl.getAttribute('data-index'), 10);
+                    const item = showcaseItems[index];
+
+                    const aspect = item.width / item.height;
+                    const baseWidth = (aspect * ROW_HEIGHT) * scaleFactor;
+                    const actualWidth = baseWidth - (totalSpacing / itemEls.length);
+
+                    itemEl.style.width = `${actualWidth}px`;
+                    itemEl.style.height = `${scaleFactor * ROW_HEIGHT}px`;
+                    itemEl.style.marginRight = `${ITEM_SPACING}px`;
+
+                    row.appendChild(itemEl);
+                }
+
+                container.appendChild(row);
+            }
+
+            let rowItemEls = [];
+            let rowWidth = 0;
+
+            for (const itemEl of itemElements) {
+                const index = parseInt(itemEl.getAttribute('data-index'), 10);
+                const item = showcaseItems[index];
+                
+                const aspect = item.width / item.height;
+                rowWidth += aspect * ROW_HEIGHT;
+
+                rowItemEls.push(itemEl);
+
+                if (rowWidth > width) {
+                    addRow(rowItemEls, rowWidth, showcaseContainer);
+
+                    rowItemEls = [];
+                    rowWidth = 0;
+                }
+            }
+
+            addRow(rowItemEls, rowWidth, showcaseContainer);
+        }
+
+        function loadImages() {
+            const items = showcaseContainer.querySelectorAll('.showcase-item');
+            for (const item of items) {
+                const i = parseInt(item.getAttribute('data-index'), 10);
+                addThumbnailFuncs[i]();
+            }
+        }
+
+        layout();
+        layout(); // scrollbars are fun!!
+
+        loadImages();
+
+        window.addEventListener('resize', () => {
+            layout();
+        });
+    </script>
 </body>
 
 </html>
diff --git a/src/website/feed.go b/src/website/feed.go
index fb9d9321..00c5422e 100644
--- a/src/website/feed.go
+++ b/src/website/feed.go
@@ -238,6 +238,8 @@ func AtomFeed(c *RequestContext) ResponseData {
 					INNER JOIN auth_user AS owner ON owner.id = snippet.owner_id
 					LEFT JOIN handmade_asset AS asset ON asset.id = snippet.asset_id
 					LEFT JOIN handmade_discordmessage AS discord_message ON discord_message.id = snippet.discord_message_id
+				WHERE
+					NOT snippet.is_jam
 				ORDER BY snippet.when DESC
 				LIMIT $1
 				`,
diff --git a/src/website/jam.go b/src/website/jam.go
index ba18824c..44aacd81 100644
--- a/src/website/jam.go
+++ b/src/website/jam.go
@@ -1,9 +1,13 @@
 package website
 
 import (
+	"net/http"
 	"time"
 
+	"git.handmade.network/hmn/hmn/src/db"
 	"git.handmade.network/hmn/hmn/src/hmnurl"
+	"git.handmade.network/hmn/hmn/src/models"
+	"git.handmade.network/hmn/hmn/src/oops"
 	"git.handmade.network/hmn/hmn/src/templates"
 )
 
@@ -16,6 +20,45 @@ func JamIndex(c *RequestContext) ResponseData {
 		daysUntil = 0
 	}
 
+	c.Perf.StartBlock("SQL", "Fetch showcase snippets")
+	type snippetQuery struct {
+		Owner          models.User            `db:"owner"`
+		Snippet        models.Snippet         `db:"snippet"`
+		Asset          *models.Asset          `db:"asset"`
+		DiscordMessage *models.DiscordMessage `db:"discord_message"`
+	}
+	snippetQueryResult, err := db.Query(c.Context(), c.Conn, snippetQuery{},
+		`
+		SELECT $columns
+		FROM
+			handmade_snippet AS snippet
+			INNER JOIN auth_user AS owner ON owner.id = snippet.owner_id
+			LEFT JOIN handmade_asset AS asset ON asset.id = snippet.asset_id
+			LEFT JOIN handmade_discordmessage AS discord_message ON discord_message.id = snippet.discord_message_id
+		WHERE
+			snippet.is_jam
+		ORDER BY snippet.when DESC
+		LIMIT 20
+		`,
+	)
+	if err != nil {
+		return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to fetch jam snippets"))
+	}
+	snippetQuerySlice := snippetQueryResult.ToSlice()
+	showcaseItems := make([]templates.TimelineItem, 0, len(snippetQuerySlice))
+	for _, s := range snippetQuerySlice {
+		row := s.(*snippetQuery)
+		timelineItem := SnippetToTimelineItem(&row.Snippet, row.Asset, row.DiscordMessage, &row.Owner, c.Theme)
+		if timelineItem.Type != templates.TimelineTypeSnippetYoutube {
+			showcaseItems = append(showcaseItems, timelineItem)
+		}
+	}
+	c.Perf.EndBlock()
+
+	c.Perf.StartBlock("SHOWCASE", "Convert to json")
+	showcaseJson := templates.TimelineItemsToJSON(showcaseItems)
+	c.Perf.EndBlock()
+
 	baseData := getBaseDataAutocrumb(c, "Wheel Reinvention Jam")
 	baseData.OpenGraphItems = []templates.OpenGraphItem{
 		{Property: "og:site_name", Value: "Handmade.Network"},
@@ -27,12 +70,14 @@ func JamIndex(c *RequestContext) ResponseData {
 
 	type JamPageData struct {
 		templates.BaseData
-		DaysUntil int
+		DaysUntil         int
+		ShowcaseItemsJSON string
 	}
 
 	res.MustWriteTemplate("wheeljam_index.html", JamPageData{
-		BaseData:  baseData,
-		DaysUntil: daysUntil,
+		BaseData:          baseData,
+		DaysUntil:         daysUntil,
+		ShowcaseItemsJSON: showcaseJson,
 	}, c.Perf)
 	return res
 }
diff --git a/src/website/landing.go b/src/website/landing.go
index da5f21c4..56e6488a 100644
--- a/src/website/landing.go
+++ b/src/website/landing.go
@@ -232,6 +232,8 @@ func Index(c *RequestContext) ResponseData {
 			INNER JOIN auth_user AS owner ON owner.id = snippet.owner_id
 			LEFT JOIN handmade_asset AS asset ON asset.id = snippet.asset_id
 			LEFT JOIN handmade_discordmessage AS discord_message ON discord_message.id = snippet.discord_message_id
+		WHERE
+			NOT snippet.is_jam
 		ORDER BY snippet.when DESC
 		LIMIT 20
 		`,
diff --git a/src/website/showcase.go b/src/website/showcase.go
index 52c328a6..16185475 100644
--- a/src/website/showcase.go
+++ b/src/website/showcase.go
@@ -32,6 +32,8 @@ func Showcase(c *RequestContext) ResponseData {
 			INNER JOIN auth_user AS owner ON owner.id = snippet.owner_id
 			LEFT JOIN handmade_asset AS asset ON asset.id = snippet.asset_id
 			LEFT JOIN handmade_discordmessage AS discord_message ON discord_message.id = snippet.discord_message_id
+		WHERE
+			NOT snippet.is_jam
 		ORDER BY snippet.when DESC
 		`,
 	)