#!/usr/bin/env bats
# Tests for skills/obsidian-vault-kb/scripts/vault_backlinks.sh.

load '../helpers/common'

setup() {
  sandbox_home
  SCRIPT="$REPO_ROOT/skills/obsidian-vault-kb/scripts/vault_backlinks.sh"
  CONFIG_FILE="$HOME/.agent-skills/obsidian-vault-kb/config.json"
  VAULT="$BATS_TEST_TMPDIR/vault"
  make_test_vault "$VAULT"
  write_vault_config "$CONFIG_FILE" "append" "v=$VAULT"
}

@test "finds a plain [[note]] wikilink" {
  run "$SCRIPT" homelab-overview
  [ "$status" -eq 0 ]
  [[ "$output" == *"dns-setup.md"* ]]
}

@test "finds a [[note|alias]] wikilink" {
  cat > "$VAULT/Notes/router.md" << 'EOF'
See [[dns-setup|the DNS note]] for details.
EOF
  run "$SCRIPT" dns-setup
  [ "$status" -eq 0 ]
  [[ "$output" == *"router.md"* ]]
  [[ "$output" == *"homelab-overview.md"* ]]
}

@test "a note name with regex metacharacters is handled safely" {
  cat > "$VAULT/Notes/weird.md" << 'EOF'
Related: [[weird.name[test]]]
EOF
  run "$SCRIPT" 'weird.name[test]'
  [ "$status" -eq 0 ]
  [[ "$output" == *"weird.md"* ]]
}

@test "excludes backlinks that only exist inside a non-markdown file" {
  echo '[[dns-setup]]' > "$VAULT/Notes/attachment2.pdf"
  run "$SCRIPT" dns-setup
  [ "$status" -eq 0 ]
  [[ "$output" == *"homelab-overview.md"* ]]
  [[ "$output" != *"attachment2.pdf"* ]]
}

@test "an unlinked note reports no backlinks found" {
  run "$SCRIPT" nope-not-a-note
  [ "$status" -eq 0 ]
  [[ "$output" == *"no backlinks found"* ]]
}

@test "grep fallback still finds backlinks when rg is unavailable" {
  hide_command rg
  run "$SCRIPT" homelab-overview
  [ "$status" -eq 0 ]
  [[ "$output" == *"dns-setup.md"* ]]
}