#!/usr/bin/env bats
#
# Tests for claude-templates/.ai/scripts/spec-sort — the one-time docs-pile
# retrofit from the docs-lifecycle spec: classify docs/**/*.org outside
# docs/specs/ (spec candidate iff it carries BOTH a Decisions heading AND an
# Implementation phases heading), show an evidence panel, and on --apply
# move + rename confirmed candidates to docs/specs/*-spec.org, prepend the
# status heading (:ID:, dated history line), rewrite the keyword header to
# the two-sequence form, relink file: links across the rewritten roots,
# stamp :LAST_SPEC_SORT: in .ai/notes.org.
#
# Contract under test (docs/specs/2026-07-01-docs-lifecycle-spec.org,
# "The retrofit"):
#   - dry-run report is the default; --apply writes
#   - --apply refuses on a dirty worktree (exit 2) unless --allow-dirty
#   - every candidate needs --confirm REL=KEYWORD or --skip REL (exit 1
#     otherwise); terminal keywords need --reason REL=TEXT
#   - plan validated before the first write; destination collisions block
#   - bare-path mentions in rewritten roots block --apply until
#     --acknowledge-bare waives them (reported, never rewritten)
#   - mid-apply failure names applied/not-applied + git restore recovery
#   - idempotent: a sorted project yields no candidates, no changes
#
# Strategy: each test builds a throwaway git project fixture and runs the
# real script against it. Mid-apply failure is forced via the test-only
# SPEC_SORT_INJECT_FAIL_AFTER env hook.

SCRIPT="$(cd "$(dirname "$BATS_TEST_FILENAME")/.." && pwd)/spec-sort"

setup() {
  TEST_DIR="$(mktemp -d -t spec-sort-bats.XXXXXX)"
  PROJ="$TEST_DIR/proj"
  mkdir -p "$PROJ"
}

teardown() {
  rm -rf "$TEST_DIR"
}

# Standard fixture: one spec candidate, one note, a stray root spec with a
# spine, an anomaly (-spec.org name, no spine), inbound links from todo.org,
# a sibling note, a session archive (report-only surface), and .ai/notes.org
# with a Workflow State section.
make_project() {
  cd "$PROJ"
  git init -q
  git config user.email test@test
  git config user.name test
  mkdir -p docs/design .ai/sessions

  cat > docs/design/widget.org <<'EOF'
#+TITLE: Widget Feature
#+DATE: 2026-05-01
#+TODO: DRAFT REVIEW | SHIPPED

* Metadata
| Status | draft |
| Owner  | Craig |

* Summary
The widget feature. See [[file:scratch-note.org][the note]].

* Decisions [1/2]
** DONE Pick the widget shape
** TODO Pick the color

* Implementation phases
** Phase 1 — build =src/widget.py=
EOF

  cat > docs/design/scratch-note.org <<'EOF'
#+TITLE: Scratch Note

* Metadata
| Status | n/a |

* Thoughts
See [[file:widget.org][the widget spec]].
EOF

  cat > docs/rooty-spec.org <<'EOF'
#+TITLE: Rooty

* Decisions
** DONE Only decision

* Implementation phases
** Phase 1 — nothing
EOF

  cat > docs/lonely-spec.org <<'EOF'
#+TITLE: Lonely
Just prose, no spine.
EOF

  cat > todo.org <<'EOF'
* Open Work
** DOING [#B] Widget feature
Spec: [[file:docs/design/widget.org][widget spec]].
Summary anchor: [[file:docs/design/widget.org::*Summary][the summary]].
EOF

  cat > .ai/notes.org <<'EOF'
* Active Reminders

* Workflow State
:LAST_AUDIT: 2026-06-28
EOF

  cat > .ai/sessions/2026-06-01-old.org <<'EOF'
Old log: [[file:../../docs/design/widget.org][widget]]
EOF

  git add -A
  git commit -qm init
}

# Confirm flags that satisfy the gate for the standard fixture's candidates.
CONFIRM_ALL=(--confirm docs/design/widget.org=DRAFT --confirm docs/rooty-spec.org=DRAFT)

# ---- Classification (dry-run) ----------------------------------------

@test "spec-sort: dry-run classifies the spine-carrying doc as a candidate" {
  make_project
  run "$SCRIPT"
  [ "$status" -eq 0 ]
  [[ "$output" == *"CANDIDATE docs/design/widget.org -> docs/specs/widget-spec.org"* ]]
}

@test "spec-sort: a Metadata table alone does not qualify — note stays a note" {
  make_project
  run "$SCRIPT"
  [ "$status" -eq 0 ]
  [[ "$output" == *"NOTE docs/design/scratch-note.org"* ]]
  [[ "$output" != *"CANDIDATE docs/design/scratch-note.org"* ]]
}

@test "spec-sort: stray root spec with a spine is a candidate, suffix not doubled" {
  make_project
  run "$SCRIPT"
  [ "$status" -eq 0 ]
  [[ "$output" == *"CANDIDATE docs/rooty-spec.org -> docs/specs/rooty-spec.org"* ]]
  [[ "$output" != *"rooty-spec-spec.org"* ]]
}

@test "spec-sort: -spec.org name without a spine is an anomaly, never auto-moved" {
  make_project
  run "$SCRIPT"
  [ "$status" -eq 0 ]
  [[ "$output" == *"ANOMALY docs/lonely-spec.org"* ]]
  [[ "$output" != *"CANDIDATE docs/lonely-spec.org"* ]]
}

@test "spec-sort: docs/specs/ contents are excluded from classification" {
  make_project
  mkdir -p docs/specs
  cp docs/design/widget.org docs/specs/sorted-spec.org
  git add -A && git commit -qm more
  run "$SCRIPT"
  [ "$status" -eq 0 ]
  [[ "$output" != *"CANDIDATE docs/specs/sorted-spec.org"* ]]
}

@test "spec-sort: no docs/ directory is a silent no-op" {
  cd "$PROJ"
  git init -q
  git config user.email test@test
  git config user.name test
  echo x > README.md
  git add -A && git commit -qm init
  run "$SCRIPT"
  [ "$status" -eq 0 ]
  [ -z "$output" ]
}

# ---- Evidence panel ---------------------------------------------------

@test "spec-sort: evidence panel shows status field, cookies, and todo.org task" {
  make_project
  run "$SCRIPT"
  [ "$status" -eq 0 ]
  [[ "$output" == *"status field: draft"* ]]
  [[ "$output" == *"Decisions [1/2]"* ]]
  [[ "$output" == *"todo.org:"*"DOING"*"Widget feature"* ]]
}

@test "spec-sort: keyword proposal follows the evidence — DOING from the linked DOING task" {
  make_project
  run "$SCRIPT"
  [ "$status" -eq 0 ]
  # status field says draft, but the linking todo.org task is DOING — the
  # panel proposes the state the strongest evidence supports
  [[ "$output" == *"proposed keyword: DOING"* ]]
}

@test "spec-sort: an 'incomplete' status field never proposes the terminal IMPLEMENTED" {
  make_project
  sed -i 's/| Status | draft |/| Status | incomplete |/' docs/design/widget.org
  git add -A && git commit -qm status
  run "$SCRIPT"
  [ "$status" -eq 0 ]
  [[ "$output" != *"proposed keyword: IMPLEMENTED"* ]]
}

# ---- Confirm gate -----------------------------------------------------

@test "spec-sort --apply: refuses when a candidate is neither confirmed nor skipped" {
  make_project
  run "$SCRIPT" --apply --confirm docs/design/widget.org=DRAFT
  [ "$status" -eq 1 ]
  [[ "$output" == *"unconfirmed"* ]]
  [[ "$output" == *"docs/rooty-spec.org"* ]]
  [ -f docs/design/widget.org ]   # nothing moved
}

@test "spec-sort --apply: a terminal keyword without --reason refuses" {
  make_project
  run "$SCRIPT" --apply --confirm docs/design/widget.org=IMPLEMENTED --skip docs/rooty-spec.org
  [ "$status" -eq 1 ]
  [[ "$output" == *"--reason"* ]]
  [ -f docs/design/widget.org ]
}

@test "spec-sort --apply: a terminal keyword with --reason records it in the history line" {
  make_project
  run "$SCRIPT" --apply --confirm docs/design/widget.org=IMPLEMENTED \
    --reason "docs/design/widget.org=shipped in v2, confirmed against src" \
    --skip docs/rooty-spec.org
  [ "$status" -eq 0 ]
  grep -q '^\* IMPLEMENTED Widget Feature' docs/specs/widget-spec.org
  grep -q 'shipped in v2, confirmed against src' docs/specs/widget-spec.org
}

@test "spec-sort --apply: --skip leaves the candidate in place and still stamps the marker" {
  make_project
  run "$SCRIPT" --apply --skip docs/design/widget.org --skip docs/rooty-spec.org
  [ "$status" -eq 0 ]
  [ -f docs/design/widget.org ]
  grep -q ':LAST_SPEC_SORT:' .ai/notes.org
}

# ---- Preflight --------------------------------------------------------

@test "spec-sort --apply: refuses on a dirty worktree (exit 2)" {
  make_project
  echo "drift" >> todo.org
  run "$SCRIPT" --apply "${CONFIRM_ALL[@]}"
  [ "$status" -eq 2 ]
  [[ "$output" == *"dirty"* ]]
  [ -f docs/design/widget.org ]
}

@test "spec-sort --apply --allow-dirty: proceeds and names what recovery loses" {
  make_project
  echo "drift" >> todo.org
  git add todo.org && git commit -qm drift   # keep the link intact; dirty a different file
  echo "scratch" > untracked-note.txt
  echo "local edit" >> .ai/notes.org
  run "$SCRIPT" --apply --allow-dirty "${CONFIRM_ALL[@]}"
  [ "$status" -eq 0 ]
  [[ "$output" == *"pre-existing"* ]]
  [[ "$output" == *".ai/notes.org"* ]]
  [ -f docs/specs/widget-spec.org ]
}

# ---- Move + rename + rewrite ------------------------------------------

@test "spec-sort --apply: moves, renames to -spec.org, prepends status heading with :ID: and history" {
  make_project
  run "$SCRIPT" --apply "${CONFIRM_ALL[@]}"
  [ "$status" -eq 0 ]
  [ -f docs/specs/widget-spec.org ]
  [ ! -f docs/design/widget.org ]
  grep -q '^\* DRAFT Widget Feature' docs/specs/widget-spec.org
  grep -q ':ID:' docs/specs/widget-spec.org
  grep -q 'retrofitted by spec-sort' docs/specs/widget-spec.org
}

@test "spec-sort --apply: keyword header rewritten to the two-sequence form" {
  make_project
  run "$SCRIPT" --apply "${CONFIRM_ALL[@]}"
  [ "$status" -eq 0 ]
  grep -q '^#+TODO: TODO | DONE$' docs/specs/widget-spec.org
  grep -q '^#+TODO: DRAFT READY DOING | IMPLEMENTED SUPERSEDED CANCELLED$' docs/specs/widget-spec.org
  ! grep -q 'DRAFT REVIEW | SHIPPED' docs/specs/widget-spec.org
}

@test "spec-sort --apply: Metadata Status field mirrors the confirmed keyword in lowercase" {
  make_project
  run "$SCRIPT" --apply --confirm docs/design/widget.org=READY --skip docs/rooty-spec.org
  [ "$status" -eq 0 ]
  grep -q '^\* READY Widget Feature' docs/specs/widget-spec.org
  grep -Eq '^\| Status[[:space:]]*\|[[:space:]]*ready' docs/specs/widget-spec.org
}

# ---- Relink -----------------------------------------------------------

@test "spec-sort --apply: rewrites the todo.org link, preserving the description" {
  make_project
  run "$SCRIPT" --apply "${CONFIRM_ALL[@]}"
  [ "$status" -eq 0 ]
  grep -q '\[\[file:docs/specs/widget-spec.org\]\[widget spec\]\]' todo.org
  ! grep -q 'docs/design/widget.org' todo.org
}

@test "spec-sort --apply: preserves a ::anchor suffix through the rewrite" {
  make_project
  run "$SCRIPT" --apply "${CONFIRM_ALL[@]}"
  [ "$status" -eq 0 ]
  grep -q '\[\[file:docs/specs/widget-spec.org::\*Summary\]\[the summary\]\]' todo.org
}

@test "spec-sort --apply: recomputes a sibling note's relative link to the moved spec" {
  make_project
  run "$SCRIPT" --apply "${CONFIRM_ALL[@]}"
  [ "$status" -eq 0 ]
  grep -q '\[\[file:../specs/widget-spec.org\]\[the widget spec\]\]' docs/design/scratch-note.org
}

@test "spec-sort --apply: recomputes the moved spec's own outbound link to an unmoved note" {
  make_project
  run "$SCRIPT" --apply "${CONFIRM_ALL[@]}"
  [ "$status" -eq 0 ]
  grep -q '\[\[file:../design/scratch-note.org\]\[the note\]\]' docs/specs/widget-spec.org
}

@test "spec-sort: session archives are reported, never rewritten" {
  make_project
  run "$SCRIPT"
  [ "$status" -eq 0 ]
  [[ "$output" == *"REPORT .ai/sessions/2026-06-01-old.org"* ]]
  run "$SCRIPT" --apply "${CONFIRM_ALL[@]}"
  [ "$status" -eq 0 ]
  grep -q 'docs/design/widget.org' .ai/sessions/2026-06-01-old.org
}

@test "spec-sort: a synced template path report names the canonical rulesets file" {
  make_project
  mkdir -p .ai/workflows
  echo 'See [[file:../../docs/design/widget.org][widget]]' > .ai/workflows/startup.org
  git add -A && git commit -qm wf
  run "$SCRIPT"
  [ "$status" -eq 0 ]
  [[ "$output" == *"REPORT .ai/workflows/startup.org"* ]]
  [[ "$output" == *"claude-templates/.ai/workflows/startup.org"* ]]
}

# ---- Bare-path mentions -----------------------------------------------

@test "spec-sort --apply: a bare-path mention in a rewritten root blocks until acknowledged" {
  make_project
  echo "raw mention: docs/design/widget.org needs review" >> todo.org
  git add -A && git commit -qm bare
  run "$SCRIPT" --apply "${CONFIRM_ALL[@]}"
  [ "$status" -eq 1 ]
  [[ "$output" == *"BARE"* ]]
  [ -f docs/design/widget.org ]   # nothing moved
  run "$SCRIPT" --apply --acknowledge-bare "${CONFIRM_ALL[@]}"
  [ "$status" -eq 0 ]
  grep -q 'raw mention: docs/design/widget.org' todo.org   # reported, never rewritten
}

@test "spec-sort --apply: a moving doc's bare mention of its own old path is acknowledgeable, not post-apply residue" {
  make_project
  echo "History: docs/design/widget.org was drafted in May." >> docs/design/widget.org
  git add -A && git commit -qm selfmention
  run "$SCRIPT" --apply "${CONFIRM_ALL[@]}"
  [ "$status" -eq 1 ]
  [[ "$output" == *"BARE"* ]]
  run "$SCRIPT" --apply --acknowledge-bare "${CONFIRM_ALL[@]}"
  [ "$status" -eq 0 ]   # the acknowledged mention rides along to docs/specs/; not residue
  grep -q ':LAST_SPEC_SORT:' .ai/notes.org
}

# ---- Plan validation ---------------------------------------------------

@test "spec-sort --apply: a destination collision blocks validation, nothing moved" {
  make_project
  mkdir -p docs/specs
  echo "occupied" > docs/specs/widget-spec.org
  git add -A && git commit -qm occupy
  run "$SCRIPT" --apply "${CONFIRM_ALL[@]}"
  [ "$status" -eq 1 ]
  [[ "$output" == *"destination exists"* ]]
  [ -f docs/design/widget.org ]
  [ "$(cat docs/specs/widget-spec.org)" = "occupied" ]
}

@test "spec-sort --apply: writes the plan file before executing" {
  make_project
  run "$SCRIPT" --apply --plan-file "$TEST_DIR/plan.json" "${CONFIRM_ALL[@]}"
  [ "$status" -eq 0 ]
  [ -f "$TEST_DIR/plan.json" ]
  grep -q 'widget-spec.org' "$TEST_DIR/plan.json"
}

# ---- Mid-apply failure recovery ----------------------------------------

@test "spec-sort --apply: forced mid-apply failure yields named recovery, not a half-migrated shrug" {
  make_project
  run env SPEC_SORT_INJECT_FAIL_AFTER=1 "$SCRIPT" --apply "${CONFIRM_ALL[@]}"
  [ "$status" -eq 1 ]
  [[ "$output" == *"RECOVERY"* ]]
  [[ "$output" == *"git restore"* ]]
  [[ "$output" == *"applied"* ]]
  [[ "$output" == *"not applied"* ]]
  ! grep -q ':LAST_SPEC_SORT:' .ai/notes.org   # no stamp on a failed apply
}

# ---- Idempotence + marker ----------------------------------------------

@test "spec-sort --apply: stamps :LAST_SPEC_SORT: in the Workflow State section" {
  make_project
  run "$SCRIPT" --apply "${CONFIRM_ALL[@]}"
  [ "$status" -eq 0 ]
  grep -q ':LAST_SPEC_SORT: ' .ai/notes.org
  # lands inside the Workflow State section, alongside the existing marker
  awk '/^\* Workflow State/{ws=1} ws && /:LAST_SPEC_SORT:/{found=1} END{exit !found}' .ai/notes.org
}

@test "spec-sort --apply: creates the Workflow State section when notes.org lacks it" {
  make_project
  printf '* Active Reminders\n' > .ai/notes.org
  git add -A && git commit -qm notes
  run "$SCRIPT" --apply "${CONFIRM_ALL[@]}"
  [ "$status" -eq 0 ]
  grep -q '^\* Workflow State' .ai/notes.org
  grep -q ':LAST_SPEC_SORT: ' .ai/notes.org
}

@test "spec-sort --apply: zero candidates still stamps the marker (clears the nudge)" {
  make_project
  rm docs/design/widget.org docs/rooty-spec.org docs/lonely-spec.org
  git add -A && git commit -qm notes-only
  run "$SCRIPT" --apply
  [ "$status" -eq 0 ]
  grep -q ':LAST_SPEC_SORT:' .ai/notes.org
}

@test "spec-sort: a second run after a successful apply finds nothing to do" {
  make_project
  run "$SCRIPT" --apply "${CONFIRM_ALL[@]}"
  [ "$status" -eq 0 ]
  git add -A && git commit -qm sorted
  run "$SCRIPT"
  [ "$status" -eq 0 ]
  [[ "$output" != *"CANDIDATE"* ]]
  run "$SCRIPT" --apply
  [ "$status" -eq 0 ]
  run git status --porcelain
  # only the re-stamped marker (same date) may differ — tree stays clean
  [ -z "$(git status --porcelain -- docs todo.org)" ]
}