hzhang
57a1fa1b33
State machine driver + camp allocator + judge-submitted verdicts +
broadcast hook to Fabric announce channel.
internal/orchestrator/
- allocator.go: pure function implementing the 3-camp rule from the
2026-05-23 design session — for each camp (pro/con/judge), random
pick from volunteers; backfill unfilled camps from remaining
unallocated signups if pool is large enough; <3 final → cancel
with diagnostic reason. rng injected for test determinism.
- allocator_test.go: 7 tests covering empty/insufficient/single-volunteer
/multi-volunteer-no-dup/backfill/insufficient-backfill/large-pool
distinctness invariants. All pass.
- ticker.go: scans every 15s (configurable via ORCHESTRATOR_TICK_INTERVAL),
drives 3 state transitions atomically:
created → signup_open (post fabric announcement async)
signup_open → signup_closed | cancelled (run allocator, write camps)
signup_closed → debating (open round 0)
debating → completed is driven by the verdict POST handler (the
implicit "judging" sub-state is captured by the gate
status==debating AND now>=debate_end_at). Per-topic transitions
use SELECT FOR UPDATE so concurrent ticker instances are safe.
internal/fabric/announce.go: HTTP client posting to a Guild announce
channel using x-fabric-system-key header (the Phase 1 gate). Wraps
the formatted topic announcement (title/summary/timing/schema). All
4 config fields required to enable; any missing → no-op with log
(orchestrator runs fine without Fabric coupling for dev).
internal/store/{round,camp,argument,verdict}_store.go: CRUD layer
for the remaining v2 entities. CampStore.WriteAllocation accepts a
tx so the orchestrator can wrap allocator+camps+status into one
atomic transition.
internal/httpapi/handlers/arguments.go:
- POST /api/topics/{id}/arguments — agent posts during debate. Gates:
agent must be in a camp on this topic; status==debating; content
nonempty and <=32KB; attached to latest open round.
- GET /api/topics/{id}/arguments — full transcript, visibility-gated.
internal/httpapi/handlers/verdict.go:
- POST /api/topics/{id}/verdict — judge submits. Gates: caller==judge
camp; status==debating AND now>=debate_end_at; verdict valid JSON;
rationale required. On success: writes verdicts row (unique on
topic_id → 409 on dup) and flips topic.status to completed.
- GET /api/topics/{id}/verdict — visibility-gated.
config: 5 new env vars — FABRIC_GUILD_BASE_URL,
FABRIC_ANNOUNCE_CHANNEL_ID, FABRIC_SYSTEM_API_KEY,
FABRIC_BOT_BEARER_TOKEN, ORCHESTRATOR_TICK_INTERVAL.
routes.go: wired new handlers — POST signups/arguments/verdict gated
on agent bearer; GET arguments/verdict on optional-auth chain
(public topics readable anonymously).
main.go: instantiates announcer + ticker; ticker.Run in a goroutine
sharing the lifetime ctx.
go vet + gofmt clean; 7/7 allocator tests pass; 12M static binary.
Next: Phase 2E (deploy to t3 with nginx + CF origin cert) or
Phase 2D.5 (SSE stream for live transcript subscribers).
66 lines
1.8 KiB
Go
66 lines
1.8 KiB
Go
package store
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import (
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"context"
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"database/sql"
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"errors"
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"time"
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"github.com/google/uuid"
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"github.com/jmoiron/sqlx"
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)
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type Round struct {
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ID string `db:"id" json:"id"`
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TopicID string `db:"topic_id" json:"topic_id"`
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RoundNo int `db:"round_no" json:"round_no"`
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OpenedAt time.Time `db:"opened_at" json:"opened_at"`
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ClosedAt *time.Time `db:"closed_at" json:"closed_at,omitempty"`
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}
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type RoundStore struct {
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db *sqlx.DB
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}
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func NewRoundStore(db *sqlx.DB) *RoundStore { return &RoundStore{db: db} }
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// Open creates the round-0 row for a topic entering `debating`. Subsequent
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// rounds (1, 2, ...) are inserted by the round driver as the debate
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// advances; we leave round-bumping logic outside the store so the policy
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// (time-based? all-participants-posted?) can evolve without DB churn.
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func (s *RoundStore) Open(ctx context.Context, topicID string, roundNo int) (*Round, error) {
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id := uuid.NewString()
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if _, err := s.db.ExecContext(ctx,
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`INSERT INTO rounds (id, topic_id, round_no) VALUES (?, ?, ?)`,
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id, topicID, roundNo); err != nil {
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return nil, err
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}
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var r Round
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if err := s.db.GetContext(ctx, &r, `SELECT * FROM rounds WHERE id = ?`, id); err != nil {
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return nil, err
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}
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return &r, nil
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}
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func (s *RoundStore) Latest(ctx context.Context, topicID string) (*Round, error) {
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var r Round
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err := s.db.GetContext(ctx, &r,
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`SELECT * FROM rounds WHERE topic_id = ? ORDER BY round_no DESC LIMIT 1`, topicID)
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if errors.Is(err, sql.ErrNoRows) {
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return nil, ErrNotFound
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}
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if err != nil {
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return nil, err
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}
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return &r, nil
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}
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func (s *RoundStore) ListByTopic(ctx context.Context, topicID string) ([]Round, error) {
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var rows []Round
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if err := s.db.SelectContext(ctx, &rows,
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`SELECT * FROM rounds WHERE topic_id = ? ORDER BY round_no ASC`, topicID); err != nil {
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return nil, err
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}
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return rows, nil
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}
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