id: T056
name: FlashDNS Pagination
goal: Implement pagination for FlashDNS Zone and Record listing APIs
status: complete
priority: P2
owner: peerB
created: 2025-12-12
depends_on: []
blocks: []

context: |
  **Findings from T049 Audit:**
  - flashdns/crates/flashdns-server/src/zone_service.rs: // TODO: Implement pagination using page_size and page_token
  - flashdns/crates/flashdns-server/src/record_service.rs: // TODO: Implement pagination using page_size and page_token

  **Strategic Value:**
  - Improves API usability for large number of zones/records.
  - Prevents API from returning excessively large responses.

acceptance:
  - RangeRequest and RangeResponse include page_size, page_token, next_page_token
  - Zone and Record listing APIs respect pagination parameters
  - Integration tests for pagination on both services

steps:
  - step: S1
    name: API Definition
    done: Update proto definitions for pagination
    status: complete
    started: 2025-12-12 23:48 JST
    completed: 2025-12-12 23:48 JST
    owner: peerB
    priority: P1
    notes: Proto already had pagination fields (page_size, page_token, next_page_token)

  - step: S2
    name: Backend Implementation
    done: Implement pagination logic in Zone and Record services
    status: complete
    started: 2025-12-12 23:48 JST
    completed: 2025-12-12 23:52 JST
    owner: peerB
    priority: P1
    outputs:
      - path: flashdns/crates/flashdns-server/src/zone_service.rs
        note: Pagination logic (+47 LOC)
      - path: flashdns/crates/flashdns-server/src/record_service.rs
        note: Pagination logic (+47 LOC)
    notes: |
      Offset-based pagination with base64-encoded page_token
      Default page_size: 50
      Filter-then-paginate ordering

  - step: S3
    name: Testing
    done: Add integration tests for pagination
    status: complete
    started: 2025-12-12 23:52 JST
    completed: 2025-12-12 23:53 JST
    owner: peerB
    priority: P1
    outputs:
      - path: flashdns/crates/flashdns-server/tests/integration.rs
        note: Pagination tests (+215 LOC)
    notes: |
      test_zone_pagination: 15 zones, 3-page verification
      test_record_pagination: 25 records, filter+pagination

evidence:
  - item: T056 Implementation
    desc: |
      FlashDNS pagination implemented:
      - Proto: Already had pagination fields
      - Services: 95 LOC (zone + record pagination)
      - Tests: 215 LOC (comprehensive coverage)
      - Total: ~310 LOC
    timestamp: 2025-12-12 23:53 JST
notes: |
  Standard API pattern for list operations.