#!/usr/bin/env bash
set -euo pipefail

REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
SCRIPT="$REPO_ROOT/scripts/sync-plugin-content.sh"
PASS=0
FAIL=0

pass() { echo "  PASS: $1"; PASS=$((PASS + 1)); }
fail() { echo "  FAIL: $1"; FAIL=$((FAIL + 1)); }

if ! command -v apm &>/dev/null; then
  echo "apm not installed -- skipping (see kyberforge:apm-install)" >&2
  exit 77
fi

# Minimal fixture: one skill (with a tests/ fixture that must NOT be mirrored), one
# agent, one hooks.json -- enough to exercise every mirrored category
# (scripts/sync-plugin-content.sh's MIRROR_DIRS plus hooks.json) without needing
# network access (no apm.yml dependencies).
make_fixture() {
  local dir
  dir="$(mktemp -d)"
  mkdir -p "$dir/.apm/skills/hello/tests" "$dir/.apm/agents" "$dir/.apm/hooks"
  cat > "$dir/apm.yml" <<'YAML'
name: fixture
version: 0.0.1
description: fixture
license: MIT
type: hybrid
targets:
  - claude
dependencies:
  apm: []
  mcp: []
includes: auto
devDependencies:
  apm: []
scripts: {}
YAML
  cat > "$dir/.apm/skills/hello/SKILL.md" <<'EOF'
---
name: hello
description: hello
---
Hello.
EOF
  cat > "$dir/.apm/skills/hello/tests/sample.bats" <<'EOF'
@test "dummy" { true; }
EOF
  cat > "$dir/.apm/agents/foo.agent.md" <<'EOF'
---
name: foo
description: foo
---
Foo.
EOF
  cat > "$dir/.apm/hooks/hooks.json" <<'EOF'
{"hooks": {"PreToolUse": []}}
EOF
  echo "$dir"
}

# --- 1. --check reports drift before any sync has run ---
echo ""
echo "--- --check reports drift on an unsynced fixture ---"
FIXTURE="$(make_fixture)"
trap 'rm -rf "$FIXTURE"' EXIT
if bash "$SCRIPT" --check "$FIXTURE" > /dev/null 2>&1; then
  fail "exited 0 on an unsynced fixture — expected drift (exit 1)"
else
  pass "exits non-zero (drift) before syncing"
fi

# --- 2. A real sync creates the flat mirror and exits 0 ---
echo ""
echo "--- real sync creates skills/, agents/, hooks.json ---"
if bash "$SCRIPT" "$FIXTURE" > /dev/null 2>&1 \
  && [[ -f "$FIXTURE/skills/hello/SKILL.md" ]] \
  && [[ -f "$FIXTURE/agents/foo.agent.md" ]] \
  && [[ -f "$FIXTURE/hooks.json" ]]; then
  pass "sync creates the expected flat mirror"
else
  fail "sync did not create the expected flat mirror"
fi

# --- 3. tests/ fixtures are excluded from the mirror ---
echo ""
echo "--- tests/ subdirectories are not mirrored ---"
if [[ ! -e "$FIXTURE/skills/hello/tests" ]]; then
  pass "skills/hello/tests/ was not copied into the mirror"
else
  fail "skills/hello/tests/ was copied into the mirror — should be excluded"
fi

# --- 4. --check is clean immediately after a real sync ---
echo ""
echo "--- --check is clean right after syncing ---"
if bash "$SCRIPT" --check "$FIXTURE" > /dev/null 2>&1; then
  pass "no drift reported immediately after syncing"
else
  fail "drift reported right after syncing — sync and check disagree"
fi

# --- 5. New .apm/ content is detected as drift, and a re-sync clears it ---
echo ""
echo "--- new .apm/ content is detected as drift and cleared by re-sync ---"
mkdir -p "$FIXTURE/.apm/skills/second"
cat > "$FIXTURE/.apm/skills/second/SKILL.md" <<'EOF'
---
name: second
description: second
---
Second.
EOF
if bash "$SCRIPT" --check "$FIXTURE" > /dev/null 2>&1; then
  fail "no drift reported after adding a new skill under .apm/ — expected drift"
else
  pass "new .apm/ content is detected as drift"
  bash "$SCRIPT" "$FIXTURE" > /dev/null 2>&1
  if bash "$SCRIPT" --check "$FIXTURE" > /dev/null 2>&1; then
    pass "re-sync clears the drift"
  else
    fail "re-sync did not clear the drift"
  fi
fi

# --- 6. A plugin dir with no .apm/ is skipped cleanly, not treated as an error ---
echo ""
echo "--- a plugin dir with no .apm/ is skipped, not failed ---"
NO_APM="$(mktemp -d)"
trap 'rm -rf "$NO_APM"' EXIT
if bash "$SCRIPT" "$NO_APM" > /dev/null 2>&1 && bash "$SCRIPT" --check "$NO_APM" > /dev/null 2>&1; then
  pass "a plugin dir with no .apm/ exits 0 in both real and --check mode"
else
  fail "a plugin dir with no .apm/ should exit 0 (skip), not fail"
fi

echo ""
echo "Results: $PASS passed, $FAIL failed"
[[ $FAIL -eq 0 ]]