Files
cairnquire/apps/server/internal/docs/repository.go
2026-04-29 09:44:57 -04:00

291 lines
7.9 KiB
Go

package docs
import (
"context"
"database/sql"
"encoding/json"
"errors"
"fmt"
"time"
)
type Repository struct {
db *sql.DB
}
type DocumentRecord struct {
ID string `json:"id"`
Path string `json:"path"`
CurrentHash string `json:"currentHash"`
Title string `json:"title"`
Tags []string `json:"tags"`
CreatedAt time.Time `json:"createdAt"`
UpdatedAt time.Time `json:"updatedAt"`
}
type UserRecord struct {
ID string `json:"id"`
Email string `json:"email"`
DisplayName string `json:"displayName"`
Role string `json:"role"`
CreatedAt time.Time `json:"createdAt"`
LastSeenAt time.Time `json:"lastSeenAt,omitempty"`
}
type AttachmentRecord struct {
Hash string
OriginalName string
ContentType string
SizeBytes int64
CreatedAt time.Time
}
type PersistDocumentInput struct {
ID string
Path string
Title string
Hash string
PreviousHash string
Tags []string
}
func NewRepository(db *sql.DB) *Repository {
return &Repository{db: db}
}
func (r *Repository) PersistDocument(ctx context.Context, input PersistDocumentInput) error {
now := time.Now().UTC()
tagsJSON, err := json.Marshal(input.Tags)
if err != nil {
return fmt.Errorf("marshal tags: %w", err)
}
existing, err := r.GetDocumentByPath(ctx, input.Path)
if err != nil && !errors.Is(err, sql.ErrNoRows) {
return err
}
documentID := input.ID
createdAt := now
if existing != nil {
documentID = existing.ID
createdAt = existing.CreatedAt
}
if _, err := r.db.ExecContext(ctx, `
INSERT INTO documents (id, path, current_hash, title, tags, created_at, updated_at)
VALUES (?, ?, ?, ?, ?, ?, ?)
ON CONFLICT(path) DO UPDATE SET
current_hash = excluded.current_hash,
title = excluded.title,
tags = excluded.tags,
updated_at = excluded.updated_at
`, documentID, input.Path, input.Hash, input.Title, string(tagsJSON), createdAt.Format(time.RFC3339), now.Format(time.RFC3339)); err != nil {
return fmt.Errorf("upsert document %s: %w", input.Path, err)
}
if existing != nil && existing.CurrentHash == input.Hash {
return nil
}
versionID := documentID + ":" + input.Hash[:12]
if _, err := r.db.ExecContext(ctx, `
INSERT OR IGNORE INTO document_versions (id, document_id, hash, previous_hash, created_at, change_summary)
VALUES (?, ?, ?, ?, ?, ?)
`, versionID, documentID, input.Hash, input.PreviousHash, now.Format(time.RFC3339), "filesystem sync"); err != nil {
return fmt.Errorf("insert document version %s: %w", input.Path, err)
}
return nil
}
func (r *Repository) GetDocumentByPath(ctx context.Context, path string) (*DocumentRecord, error) {
var (
record DocumentRecord
tagsJSON string
created string
updated string
)
err := r.db.QueryRowContext(ctx, `
SELECT id, path, current_hash, title, tags, created_at, updated_at
FROM documents
WHERE path = ?
`, path).Scan(&record.ID, &record.Path, &record.CurrentHash, &record.Title, &tagsJSON, &created, &updated)
if err != nil {
return nil, err
}
if err := parseDocumentTimes(&record, created, updated); err != nil {
return nil, err
}
if err := json.Unmarshal([]byte(tagsJSON), &record.Tags); err != nil {
return nil, fmt.Errorf("unmarshal document tags: %w", err)
}
return &record, nil
}
func (r *Repository) ListDocuments(ctx context.Context) ([]DocumentRecord, error) {
rows, err := r.db.QueryContext(ctx, `
SELECT id, path, current_hash, title, tags, created_at, updated_at
FROM documents
ORDER BY path ASC
`)
if err != nil {
return nil, fmt.Errorf("list documents: %w", err)
}
defer rows.Close()
var records []DocumentRecord
for rows.Next() {
var (
record DocumentRecord
tagsJSON string
created string
updated string
)
if err := rows.Scan(&record.ID, &record.Path, &record.CurrentHash, &record.Title, &tagsJSON, &created, &updated); err != nil {
return nil, fmt.Errorf("scan document: %w", err)
}
if err := parseDocumentTimes(&record, created, updated); err != nil {
return nil, err
}
if err := json.Unmarshal([]byte(tagsJSON), &record.Tags); err != nil {
return nil, fmt.Errorf("unmarshal document tags: %w", err)
}
records = append(records, record)
}
return records, rows.Err()
}
func (r *Repository) ListUsers(ctx context.Context) ([]UserRecord, error) {
rows, err := r.db.QueryContext(ctx, `
SELECT id, email, COALESCE(display_name, ''), COALESCE(role, 'viewer'), created_at, COALESCE(last_seen_at, '')
FROM users
ORDER BY created_at DESC
`)
if err != nil {
return nil, fmt.Errorf("list users: %w", err)
}
defer rows.Close()
var users []UserRecord
for rows.Next() {
var (
user UserRecord
created string
lastSeen string
)
if err := rows.Scan(&user.ID, &user.Email, &user.DisplayName, &user.Role, &created, &lastSeen); err != nil {
return nil, fmt.Errorf("scan user: %w", err)
}
createdAt, err := time.Parse(time.RFC3339, created)
if err != nil {
return nil, fmt.Errorf("parse user created_at: %w", err)
}
user.CreatedAt = createdAt
if lastSeen != "" {
parsed, err := time.Parse(time.RFC3339, lastSeen)
if err != nil {
return nil, fmt.Errorf("parse user last_seen_at: %w", err)
}
user.LastSeenAt = parsed
}
users = append(users, user)
}
return users, rows.Err()
}
func (r *Repository) UpsertUser(ctx context.Context, user UserRecord) (UserRecord, error) {
now := time.Now().UTC()
if user.ID == "" {
user.ID = "user:" + user.Email
}
if user.Role == "" {
user.Role = "viewer"
}
if user.DisplayName == "" {
user.DisplayName = user.Email
}
user.CreatedAt = now
user.LastSeenAt = now
if _, err := r.db.ExecContext(ctx, `
INSERT INTO users (id, email, display_name, role, created_at, last_seen_at)
VALUES (?, ?, ?, ?, ?, ?)
ON CONFLICT(email) DO UPDATE SET
display_name = excluded.display_name,
role = excluded.role,
last_seen_at = excluded.last_seen_at
`, user.ID, user.Email, user.DisplayName, user.Role, now.Format(time.RFC3339), now.Format(time.RFC3339)); err != nil {
return UserRecord{}, fmt.Errorf("upsert user %s: %w", user.Email, err)
}
users, err := r.ListUsers(ctx)
if err != nil {
return UserRecord{}, err
}
for _, candidate := range users {
if candidate.Email == user.Email {
return candidate, nil
}
}
return UserRecord{}, sql.ErrNoRows
}
func (r *Repository) SaveAttachment(ctx context.Context, record AttachmentRecord) error {
if _, err := r.db.ExecContext(ctx, `
INSERT INTO attachments (hash, original_name, content_type, size_bytes, created_at)
VALUES (?, ?, ?, ?, ?)
ON CONFLICT(hash) DO UPDATE SET
original_name = excluded.original_name,
content_type = excluded.content_type,
size_bytes = excluded.size_bytes
`, record.Hash, record.OriginalName, record.ContentType, record.SizeBytes, record.CreatedAt.Format(time.RFC3339)); err != nil {
return fmt.Errorf("save attachment: %w", err)
}
return nil
}
func (r *Repository) GetAttachment(ctx context.Context, hash string) (*AttachmentRecord, error) {
var (
record AttachmentRecord
created string
)
err := r.db.QueryRowContext(ctx, `
SELECT hash, original_name, content_type, size_bytes, created_at
FROM attachments
WHERE hash = ?
`, hash).Scan(&record.Hash, &record.OriginalName, &record.ContentType, &record.SizeBytes, &created)
if err != nil {
return nil, err
}
parsed, err := time.Parse(time.RFC3339, created)
if err != nil {
return nil, fmt.Errorf("parse attachment created_at: %w", err)
}
record.CreatedAt = parsed
return &record, nil
}
func (r *Repository) Ping(ctx context.Context) error {
return r.db.PingContext(ctx)
}
func parseDocumentTimes(record *DocumentRecord, created string, updated string) error {
createdAt, err := time.Parse(time.RFC3339, created)
if err != nil {
return fmt.Errorf("parse document created_at: %w", err)
}
updatedAt, err := time.Parse(time.RFC3339, updated)
if err != nil {
return fmt.Errorf("parse document updated_at: %w", err)
}
record.CreatedAt = createdAt
record.UpdatedAt = updatedAt
return nil
}