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package controlplane
import (
"context"
"crypto/sha256"
"encoding/json"
"fmt"
"strings"
"aigw/internal/auth"
"aigw/internal/domain"
"github.com/jackc/pgx/v5"
)
func (s *Store) LoadSnapshot(ctx context.Context) (Snapshot, error) {
tx, err := s.db.BeginTx(ctx, pgx.TxOptions{IsoLevel: pgx.RepeatableRead, AccessMode: pgx.ReadOnly})
if err != nil {
return Snapshot{}, fmt.Errorf("begin snapshot transaction: %w", err)
}
defer tx.Rollback(ctx)
var result Snapshot
if err := tx.QueryRow(ctx, `SELECT generation FROM control_state WHERE singleton = TRUE`).Scan(&result.Generation); err != nil {
return Snapshot{}, fmt.Errorf("read snapshot generation: %w", err)
}
providers, err := s.loadProviders(ctx, tx)
if err != nil {
return Snapshot{}, err
}
result.Models, err = loadModels(ctx, tx, providers)
if err != nil {
return Snapshot{}, err
}
result.APIKeys, err = loadAPIKeys(ctx, tx)
if err != nil {
return Snapshot{}, err
}
result.Limits, err = loadLimitPolicies(ctx, tx)
if err != nil {
return Snapshot{}, err
}
if err := tx.Commit(ctx); err != nil {
return Snapshot{}, fmt.Errorf("commit snapshot transaction: %w", err)
}
return result, nil
}
func loadLimitPolicies(ctx context.Context, tx pgx.Tx) ([]domain.LimitPolicy, error) {
rows, err := tx.Query(ctx, `
SELECT tenant_id::text, project_id::text, requests_per_minute, tokens_per_minute,
concurrent_requests, monthly_spend_micros
FROM project_limits`)
if err != nil {
return nil, fmt.Errorf("query project limits: %w", err)
}
defer rows.Close()
result := make([]domain.LimitPolicy, 0)
for rows.Next() {
var policy domain.LimitPolicy
if err := rows.Scan(&policy.TenantID, &policy.ProjectID, &policy.RequestsPerMinute,
&policy.TokensPerMinute, &policy.Concurrent, &policy.MonthlySpendMicros); err != nil {
return nil, fmt.Errorf("scan project limit: %w", err)
}
result = append(result, policy)
}
if err := rows.Err(); err != nil {
return nil, fmt.Errorf("read project limits: %w", err)
}
return result, nil
}
func (s *Store) loadProviders(ctx context.Context, tx pgx.Tx) (map[string]domain.Provider, error) {
rows, err := tx.Query(ctx, `
SELECT id::text, name, protocol, base_url, api_key_ciphertext
FROM providers
WHERE enabled = TRUE
ORDER BY name`)
if err != nil {
return nil, fmt.Errorf("query providers: %w", err)
}
defer rows.Close()
providers := make(map[string]domain.Provider)
for rows.Next() {
var id, name, protocol, baseURL string
var ciphertext []byte
if err := rows.Scan(&id, &name, &protocol, &baseURL, &ciphertext); err != nil {
return nil, fmt.Errorf("scan provider: %w", err)
}
apiKey, err := s.cipher.Decrypt(ciphertext)
if err != nil {
return nil, fmt.Errorf("decrypt provider %q credential: %w", name, err)
}
providers[id] = domain.Provider{ID: id, Protocol: domain.Protocol(protocol), BaseURL: strings.TrimRight(baseURL, "/"), APIKey: apiKey}
}
if err := rows.Err(); err != nil {
return nil, fmt.Errorf("read providers: %w", err)
}
return providers, nil
}
func loadModels(ctx context.Context, tx pgx.Tx, providers map[string]domain.Provider) ([]domain.Model, error) {
rows, err := tx.Query(ctx, `
SELECT m.public_id, m.owned_by, m.input_price_micros_per_million, m.output_price_micros_per_million,
m.cache_read_price_micros_per_million, m.cache_write_price_micros_per_million,
r.provider_id::text, r.upstream_model, r.priority, r.weight
FROM models m
JOIN model_routes r ON r.model_id = m.id AND r.enabled = TRUE
JOIN providers p ON p.id = r.provider_id AND p.enabled = TRUE
WHERE m.enabled = TRUE
ORDER BY m.public_id, r.priority, r.created_at`)
if err != nil {
return nil, fmt.Errorf("query model routes: %w", err)
}
defer rows.Close()
models := make([]domain.Model, 0)
index := make(map[string]int)
for rows.Next() {
var publicID, ownedBy, providerID, upstreamModel string
var inputPrice, outputPrice, cacheReadPrice, cacheWritePrice int64
var priority, weight int
if err := rows.Scan(&publicID, &ownedBy, &inputPrice, &outputPrice, &cacheReadPrice, &cacheWritePrice, &providerID, &upstreamModel, &priority, &weight); err != nil {
return nil, fmt.Errorf("scan model route: %w", err)
}
provider, ok := providers[providerID]
if !ok {
continue
}
position, exists := index[publicID]
if !exists {
position = len(models)
index[publicID] = position
models = append(models, domain.Model{
ID: publicID, OwnedBy: ownedBy,
InputPriceMicrosPerMillion: inputPrice, OutputPriceMicrosPerMillion: outputPrice,
CacheReadPriceMicrosPerMillion: cacheReadPrice, CacheWritePriceMicrosPerMillion: cacheWritePrice,
})
}
models[position].Routes = append(models[position].Routes, domain.Route{
Provider: provider, UpstreamModel: upstreamModel, Priority: priority, Weight: weight,
})
}
if err := rows.Err(); err != nil {
return nil, fmt.Errorf("read model routes: %w", err)
}
return models, nil
}
func loadAPIKeys(ctx context.Context, tx pgx.Tx) ([]auth.HashedKeyRecord, error) {
rows, err := tx.Query(ctx, `
SELECT k.id::text, k.key_hash, k.tenant_id::text, k.project_id::text, k.scopes
FROM api_keys k
JOIN tenants t ON t.id = k.tenant_id AND t.status = 'active'
JOIN projects p ON p.id = k.project_id AND p.status = 'active'
WHERE k.status = 'active'`)
if err != nil {
return nil, fmt.Errorf("query API keys: %w", err)
}
defer rows.Close()
records := make([]auth.HashedKeyRecord, 0)
for rows.Next() {
var keyID, tenantID, projectID string
var hashBytes, scopesJSON []byte
if err := rows.Scan(&keyID, &hashBytes, &tenantID, &projectID, &scopesJSON); err != nil {
return nil, fmt.Errorf("scan API key: %w", err)
}
if len(hashBytes) != sha256.Size {
return nil, fmt.Errorf("API key %s has invalid hash length", keyID)
}
var hash [sha256.Size]byte
copy(hash[:], hashBytes)
var scopes []string
if err := json.Unmarshal(scopesJSON, &scopes); err != nil {
return nil, fmt.Errorf("decode API key %s scopes: %w", keyID, err)
}
records = append(records, auth.HashedKeyRecord{Hash: hash, Principal: domain.Principal{
KeyID: keyID, TenantID: tenantID, ProjectID: projectID, Scopes: scopes,
}})
}
if err := rows.Err(); err != nil {
return nil, fmt.Errorf("read API keys: %w", err)
}
return records, nil
}
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