-- Workflow (e): a recurring task with a checklist. Completing it must roll the
-- task forward in place and present the next occurrence with a FRESH,
-- all-unchecked checklist — completion never carries forward (tech-spec §4.4).
--
-- The e2e daemon uses the real system clock (it's the actual binary), so we
-- assert the do-date *advanced* past the original rather than an exact value;
-- the fresh checklist is the hard requirement.

local h = require("e2e.helpers")

describe("recurring task checklist", function()
  local ctx
  before_each(function()
    ctx = h.start()
  end)
  after_each(function()
    h.stop(ctx)
  end)

  it("resets the checklist to all-unchecked on the next occurrence", function()
    local base = 1717200000000 -- 2024-06-01, safely in the past
    local task = require("heph.task").capture("Water plants", {
      recurrence = "FREQ=DAILY",
      do_date = base,
    })

    -- Its canonical-context doc holds the checklist (the recurrence template).
    local ctx_id
    for _, l in ipairs(ctx.q:call("links.outgoing", { id = task.node_id })) do
      if l.link_type == "canonical-context" then
        ctx_id = l.dst_id
      end
    end
    assert.is_truthy(ctx_id)

    -- Add a checklist via the buffer, then check both items off.
    local buf = h.open(ctx_id)
    h.set_lines(buf, { "- [ ] water fern", "- [ ] water cactus" })
    h.save(buf)
    h.set_lines(buf, { "- [x] water fern", "- [x] water cactus" })
    h.save(buf)

    -- Complete the occurrence from its context buffer → rolls forward in place.
    require("heph.task").set_state_current("done")

    local t = ctx.q:call("task.get", { id = task.node_id })
    assert.are.equal("outstanding", t.state) -- rolled forward, not done
    assert.is_true(t.do_date > base, "do-date should advance to the next occurrence")

    -- The hard requirement: a fresh, all-unchecked checklist.
    local stored = ctx.q:call("node.get", { id = ctx_id })
    assert.are.equal("- [ ] water fern\n- [ ] water cactus", stored.body)
  end)
end)