Initial commit: Lookbook personal collection app

Pinterest-like app for saving images, videos, quotes, and embeds.

Features:
- Go backend with PostgreSQL, SSR templates
- Console-based admin auth (login/logout via browser console)
- Item types: images, videos (ffmpeg transcoding), quotes, embeds
- Media stored as BLOBs in PostgreSQL
- OpenGraph metadata extraction for links
- Embed detection for YouTube, Vimeo, Twitter/X
- Masonry grid layout, item detail pages
- Tag system with filtering
- Refresh metadata endpoint with change warnings
- Replace media endpoint for updating item images/videos

internal/migrations/migrations.go

@@ -0,0 +1,131 @@
+package migrations
+
+import (
+	"context"
+	"database/sql"
+	"embed"
+	"fmt"
+	"log/slog"
+	"os"
+
+	_ "github.com/jackc/pgx/v5/stdlib"
+	"github.com/pressly/goose/v3"
+)
+
+//go:embed sql/*.sql
+var FS embed.FS
+
+const DefaultURL = "postgres:///lookbook?sslmode=disable"
+
+// Up applies all available migrations using the provided database URL.
+func Up(ctx context.Context, dbURL string, logger *slog.Logger) error {
+	url := dbURL
+	if url == "" {
+		url = DefaultURL
+	}
+
+	db, err := openDB(url, logger)
+	if err != nil {
+		return err
+	}
+	defer db.Close()
+
+	if err := goose.UpContext(ctx, db, "sql"); err != nil {
+		return fmt.Errorf("apply migrations: %w", err)
+	}
+
+	logger.Info("database migrated")
+	return nil
+}
+
+// Down rolls back migrations. If targetVersion < 0, it steps back one migration; otherwise it migrates down to the target version.
+func Down(ctx context.Context, dbURL string, targetVersion int64, logger *slog.Logger) error {
+	url := dbURL
+	if url == "" {
+		url = DefaultURL
+	}
+
+	db, err := openDB(url, logger)
+	if err != nil {
+		return err
+	}
+	defer db.Close()
+
+	if targetVersion < 0 {
+		if err := goose.DownContext(ctx, db, "sql"); err != nil {
+			return fmt.Errorf("rollback one: %w", err)
+		}
+		logger.Info("rolled back one migration")
+		return nil
+	}
+
+	if err := goose.DownToContext(ctx, db, "sql", targetVersion); err != nil {
+		return fmt.Errorf("rollback to version %d: %w", targetVersion, err)
+	}
+	logger.Info("rolled back to version", slog.Int64("version", targetVersion))
+	return nil
+}
+
+// CheckPending returns the number of pending migrations without applying them.
+func CheckPending(ctx context.Context, dbURL string, logger *slog.Logger) (int, error) {
+	url := dbURL
+	if url == "" {
+		url = DefaultURL
+	}
+
+	db, err := openDB(url, logger)
+	if err != nil {
+		return 0, err
+	}
+	defer db.Close()
+
+	current, err := goose.GetDBVersionContext(ctx, db)
+	if err != nil {
+		return 0, fmt.Errorf("get db version: %w", err)
+	}
+
+	migrations, err := goose.CollectMigrations("sql", 0, goose.MaxVersion)
+	if err != nil {
+		return 0, fmt.Errorf("collect migrations: %w", err)
+	}
+
+	pending := 0
+	for _, m := range migrations {
+		if m.Version > current {
+			pending++
+		}
+	}
+
+	return pending, nil
+}
+
+// slogLogger adapts slog to goose's minimal logging interface.
+type slogLogger struct {
+	logger *slog.Logger
+}
+
+func (l slogLogger) Printf(format string, v ...any) {
+	l.logger.Info(fmt.Sprintf(format, v...))
+}
+
+func (l slogLogger) Fatalf(format string, v ...any) {
+	l.logger.Error(fmt.Sprintf(format, v...))
+	os.Exit(1)
+}
+
+func openDB(url string, logger *slog.Logger) (*sql.DB, error) {
+	goose.SetBaseFS(FS)
+	goose.SetLogger(slogLogger{logger: logger})
+
+	db, err := sql.Open("pgx", url)
+	if err != nil {
+		return nil, fmt.Errorf("open db: %w", err)
+	}
+
+	if err := db.Ping(); err != nil {
+		db.Close()
+		return nil, fmt.Errorf("ping db: %w", err)
+	}
+
+	return db, nil
+}

internal/migrations/sql/0001_init.sql

@@ -0,0 +1,80 @@
+-- +goose Up
+-- gen_random_uuid() is built-in since PostgreSQL 13, no extension needed
+
+-- Admin authentication (single row)
+CREATE TABLE admin (
+	id              SERIAL PRIMARY KEY,
+	password_hash   BYTEA,  -- NULL until first login() sets password
+	created_at      TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+-- Insert the single admin row
+INSERT INTO admin (id) VALUES (1);
+
+-- Sessions for admin authentication
+CREATE TABLE session (
+	id              BIGSERIAL PRIMARY KEY,
+	session_id      TEXT NOT NULL UNIQUE,
+	created_at      TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+	expires_at      TIMESTAMPTZ NOT NULL
+);
+
+CREATE INDEX idx_session_expires_at ON session(expires_at);
+
+-- Items (the main content)
+CREATE TABLE item (
+	id              BIGSERIAL PRIMARY KEY,
+	pub_id          UUID NOT NULL DEFAULT gen_random_uuid() UNIQUE,
+	title           TEXT,
+	description     TEXT,
+	link_url        TEXT,                   -- Source URL (optional)
+	item_type       TEXT NOT NULL,          -- 'image', 'video', 'quote', 'embed'
+	embed_provider  TEXT,                   -- 'youtube', 'vimeo', NULL
+	embed_video_id  TEXT,                   -- Video ID for embeds
+	embed_html      TEXT,                   -- Cached embed iframe HTML
+	created_at      TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+	deleted_at      TIMESTAMPTZ             -- Soft delete
+);
+
+CREATE INDEX idx_item_deleted ON item(deleted_at);
+CREATE INDEX idx_item_created ON item(created_at DESC);
+CREATE INDEX idx_item_pub_id ON item(pub_id);
+
+-- Media blobs (stored in DB)
+CREATE TABLE media (
+	id              BIGSERIAL PRIMARY KEY,
+	item_id         BIGINT NOT NULL REFERENCES item(id) ON DELETE CASCADE,
+	media_type      TEXT NOT NULL,          -- 'original', 'thumbnail'
+	content_type    TEXT NOT NULL,          -- MIME type
+	data            BYTEA NOT NULL,
+	width           INT,
+	height          INT,
+	created_at      TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX idx_media_item_id ON media(item_id);
+
+-- Tags
+CREATE TABLE tag (
+	id              BIGSERIAL PRIMARY KEY,
+	name            TEXT NOT NULL UNIQUE
+);
+
+CREATE INDEX idx_tag_name ON tag(name);
+
+-- Item-Tag junction
+CREATE TABLE item_tag (
+	item_id         BIGINT NOT NULL REFERENCES item(id) ON DELETE CASCADE,
+	tag_id          BIGINT NOT NULL REFERENCES tag(id) ON DELETE CASCADE,
+	PRIMARY KEY (item_id, tag_id)
+);
+
+CREATE INDEX idx_item_tag_tag_id ON item_tag(tag_id);
+
+-- +goose Down
+DROP TABLE IF EXISTS item_tag;
+DROP TABLE IF EXISTS tag;
+DROP TABLE IF EXISTS media;
+DROP TABLE IF EXISTS item;
+DROP TABLE IF EXISTS session;
+DROP TABLE IF EXISTS admin;

internal/migrations/sql/0002_media_source_url.sql

@@ -0,0 +1,5 @@
+-- +goose Up
+ALTER TABLE media ADD COLUMN source_url TEXT;
+
+-- +goose Down
+ALTER TABLE media DROP COLUMN source_url;