feat(series): flat series sequence + cosmetic chapter dividers (#789 Phase 1)
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Reframe a series from "ordered chapters that own pages" to ONE flat,
series-global ordered run of pages with optional cosmetic chapter DIVIDERS
over it. A chapter no longer wraps content — it's a labeled divider anchored
to the page that begins it; a page's chapter is derived as the nearest
preceding divider. This is what lets installments assembled from multiple
sources sit in one continuous, correctly-numbered sequence (operator's
Goblin Juice case).

- migration 0047: flatten each series to a series-global page_number
  (preserving today's reading order); convert each existing chapter to a
  divider anchored at its first page (keeping title/stated_part); drop
  series_page.chapter_id; reshape series_chapter (anchor_page_id UNIQUE FK,
  drop chapter_number/is_placeholder/stated_page_start/end). Loss-safe for
  content; drops empty placeholder chapters + a redundant page-1 divider.
- series_page: page_number is now the series-global order; no chapter_id.
- series_chapter: anchored divider (anchor_page_id, title, stated_part).
- series_service: flat list_pages (one run + derived dividers + per-page
  source_post + part_gaps), series-wide reorder/renumber, divider CRUD
  (create/update/move/delete); retired per-chapter reorder/merge/placement.
- api/tags: drop chapter_id from add; /chapters endpoints are divider
  create/update/delete (removed chapter reorder/merge/page-reorder).
- series_match_service: series "end" reads max(series_page.stated_page);
  accept appends via add_post. tag_service series-merge appends src's pages
  after tgt's max so the merged series stays one clean run.
- frontend: seriesManage store + SeriesManageView → one continuous
  drag-reorder grid with inline divider bars + series-global page numbers;
  reader walks the flat run, headings from dividers; PostSeriesMenu copy.
- tests reworked across the series suite for the divider model.

Phase 2 (pending staging for add-from-post) is separate.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-06-11 21:30:01 -04:00
parent 3610ba495f
commit 59746d213d
18 changed files with 914 additions and 1141 deletions
+78 -95
View File
@@ -1,4 +1,4 @@
"""FC-6.1 — chapter layer over series_page."""
"""FC-6.x cosmetic chapter dividers over the flat series page run."""
import pytest
from sqlalchemy import func, select
@@ -30,155 +30,138 @@ async def _series(db, name):
return (await TagService(db).find_or_create(name, TagKind.series)).id
async def _chapter_numbers(db, sid):
rows = (
await db.execute(
select(SeriesChapter.id, SeriesChapter.chapter_number)
.where(SeriesChapter.series_tag_id == sid)
.order_by(SeriesChapter.chapter_number)
)
).all()
return [(r.id, r.chapter_number) for r in rows]
async def _page_order(db, chapter_id):
async def _order(db, sid):
rows = (
await db.execute(
select(SeriesPage.image_id)
.where(SeriesPage.chapter_id == chapter_id)
.where(SeriesPage.series_tag_id == sid)
.order_by(SeriesPage.page_number)
)
).scalars().all()
return list(rows)
async def _dividers(db, sid):
"""(anchor_image_id, title, stated_part) ordered by anchor page position."""
rows = (
await db.execute(
select(
SeriesChapter.id,
SeriesPage.image_id,
SeriesChapter.title,
SeriesChapter.stated_part,
)
.join(SeriesPage, SeriesPage.id == SeriesChapter.anchor_page_id)
.where(SeriesChapter.series_tag_id == sid)
.order_by(SeriesPage.page_number)
)
).all()
return rows
@pytest.mark.asyncio
async def test_add_images_creates_default_chapter(db):
async def test_create_divider_anchors_before_a_page(db):
svc = SeriesService(db)
sid = await _series(db, "C1")
i1, i2 = await _img(db), await _img(db)
await svc.add_images(sid, [i1, i2])
chapters = await _chapter_numbers(db, sid)
assert len(chapters) == 1
assert chapters[0][1] == 1
assert await _page_order(db, chapters[0][0]) == [i1, i2]
i1, i2, i3 = await _img(db), await _img(db), await _img(db)
await svc.add_images(sid, [i1, i2, i3])
await svc.create_divider(sid, i2, title="Two", stated_part=2)
divs = await _dividers(db, sid)
assert len(divs) == 1
assert divs[0].image_id == i2
assert divs[0].title == "Two"
assert divs[0].stated_part == 2
@pytest.mark.asyncio
async def test_create_and_target_specific_chapter(db):
async def test_create_divider_rejects_image_not_in_series(db):
svc = SeriesService(db)
sid = await _series(db, "C2")
i1, i2 = await _img(db), await _img(db)
await svc.add_images(sid, [i1]) # default chapter 1
ch2 = await svc.create_chapter(sid, title="Two")
assert ch2["chapter_number"] == 2
await svc.add_images(sid, [i2], chapter_id=ch2["id"])
assert await _page_order(db, ch2["id"]) == [i2]
# i1 stayed in chapter 1.
chapters = await _chapter_numbers(db, sid)
assert len(chapters) == 2
i1 = await _img(db)
await svc.add_images(sid, [i1])
with pytest.raises(SeriesError):
await svc.create_divider(sid, 999999)
@pytest.mark.asyncio
async def test_reorder_chapters(db):
async def test_one_divider_per_page(db):
svc = SeriesService(db)
sid = await _series(db, "C3")
c1 = (await svc.create_chapter(sid))["id"]
c2 = (await svc.create_chapter(sid))["id"]
c3 = (await svc.create_chapter(sid))["id"]
await svc.reorder_chapters(sid, [c3, c1, c2])
assert await _chapter_numbers(db, sid) == [(c3, 1), (c1, 2), (c2, 3)]
i1, i2 = await _img(db), await _img(db)
await svc.add_images(sid, [i1, i2])
await svc.create_divider(sid, i2)
with pytest.raises(SeriesError):
await svc.reorder_chapters(sid, [c1, c2])
await svc.create_divider(sid, i2)
@pytest.mark.asyncio
async def test_reorder_pages_within_chapter(db):
async def test_update_divider_sets_part_title_and_moves_anchor(db):
svc = SeriesService(db)
sid = await _series(db, "C4")
i1, i2, i3 = await _img(db), await _img(db), await _img(db)
await svc.add_images(sid, [i1, i2, i3])
cid = (await _chapter_numbers(db, sid))[0][0]
await svc.reorder_pages(sid, cid, [i3, i1, i2])
assert await _page_order(db, cid) == [i3, i1, i2]
d = await svc.create_divider(sid, i2)
await svc.update_divider(
sid, d["id"], set_title=True, title="X", set_part=True, stated_part=3
)
await svc.update_divider(
sid, d["id"], set_anchor=True, anchor_image_id=i3
)
divs = await _dividers(db, sid)
assert divs[0].image_id == i3
assert divs[0].title == "X"
assert divs[0].stated_part == 3
@pytest.mark.asyncio
async def test_legacy_reorder_rejects_multi_chapter(db):
async def test_delete_divider_leaves_pages(db):
svc = SeriesService(db)
sid = await _series(db, "C5")
i1 = await _img(db)
await svc.add_images(sid, [i1])
await svc.create_chapter(sid) # now 2 chapters
with pytest.raises(SeriesError):
await svc.reorder(sid, [i1])
i1, i2, i3 = await _img(db), await _img(db), await _img(db)
await svc.add_images(sid, [i1, i2, i3])
d = await svc.create_divider(sid, i2)
await svc.delete_divider(sid, d["id"])
assert await _order(db, sid) == [i1, i2, i3]
assert len(await _dividers(db, sid)) == 0
@pytest.mark.asyncio
async def test_merge_chapter_moves_pages_and_renumbers(db):
async def test_removing_anchor_page_cascades_its_divider(db):
svc = SeriesService(db)
sid = await _series(db, "C6")
i1, i2, i3 = await _img(db), await _img(db), await _img(db)
await svc.add_images(sid, [i1]) # chapter 1
c2 = (await svc.create_chapter(sid))["id"]
await svc.add_images(sid, [i2, i3], chapter_id=c2)
c1 = (await _chapter_numbers(db, sid))[0][0]
moved = await svc.merge_chapter(sid, c2, c1)
assert moved == 2
assert await _page_order(db, c1) == [i1, i2, i3]
# source chapter gone; remaining renumbered 1..N.
assert await _chapter_numbers(db, sid) == [(c1, 1)]
@pytest.mark.asyncio
async def test_delete_chapter_cascades_pages_and_renumbers(db):
svc = SeriesService(db)
sid = await _series(db, "C7")
i1, i2 = await _img(db), await _img(db)
await svc.add_images(sid, [i1])
c2 = (await svc.create_chapter(sid))["id"]
await svc.add_images(sid, [i2], chapter_id=c2)
await svc.delete_chapter(sid, c2)
assert [c for _, c in await _chapter_numbers(db, sid)] == [1]
# i2's page cascaded away with its chapter.
await svc.add_images(sid, [i1, i2, i3])
await svc.create_divider(sid, i2)
await svc.remove_images(sid, [i2])
# the divider anchored at i2 cascaded away; pages compacted to 1..N.
assert len(await _dividers(db, sid)) == 0
assert await _order(db, sid) == [i1, i3]
cnt = await db.scalar(
select(func.count()).select_from(SeriesPage)
.where(SeriesPage.image_id == i2)
select(func.count()).select_from(SeriesChapter)
.where(SeriesChapter.series_tag_id == sid)
)
assert cnt == 0
@pytest.mark.asyncio
async def test_set_cover_brings_chapter_and_page_to_front(db):
async def test_list_pages_returns_dividers_and_part_gaps(db):
svc = SeriesService(db)
sid = await _series(db, "C8")
sid = await _series(db, "C7")
i1, i2, i3 = await _img(db), await _img(db), await _img(db)
await svc.add_images(sid, [i1]) # chapter 1
c2 = (await svc.create_chapter(sid))["id"]
await svc.add_images(sid, [i2, i3], chapter_id=c2)
await svc.set_cover(sid, i3)
chapters = await _chapter_numbers(db, sid)
assert chapters[0][0] == c2 # i3's chapter is now first
assert (await _page_order(db, c2))[0] == i3 # i3 first in its chapter
@pytest.mark.asyncio
async def test_list_pages_flags_gaps_from_stated_ranges(db):
svc = SeriesService(db)
sid = await _series(db, "C9")
await svc.create_chapter(sid, stated_page_start=1, stated_page_end=4)
await svc.create_chapter(sid, stated_page_start=9, stated_page_end=12)
await svc.add_images(sid, [i1, i2, i3])
await svc.create_divider(sid, i1, stated_part=1)
await svc.create_divider(sid, i3, stated_part=3)
out = await svc.list_pages(sid)
assert len(out["chapters"]) == 2
assert len(out["gaps"]) == 1
assert out["gaps"][0]["start"] == 5
assert out["gaps"][0]["end"] == 8
assert len(out["dividers"]) == 2
assert len(out["part_gaps"]) == 1
assert out["part_gaps"][0]["start"] == 2
assert out["part_gaps"][0]["end"] == 2
@pytest.mark.asyncio
async def test_add_with_stated_pages_records_them(db):
svc = SeriesService(db)
sid = await _series(db, "C10")
sid = await _series(db, "C8")
i1, i2 = await _img(db), await _img(db)
await svc.add_images(sid, [i1, i2], stated_pages={i1: 9, i2: 10})
rows = dict(