# test_rclaude_helpers.sh — unit tests for rclaude's pure helpers.
#
# Strategy: source rclaude with a guard so the dispatch block doesn't fire,
# then call the individual helpers directly. The guard is `RCLAUDE_LIB_ONLY=1`
# — rclaude checks it at the top of its dispatch and returns early.

# Source rclaude as a library. The dispatch block is bypassed by the guard.
RCLAUDE_LIB_ONLY=1 . "$ROOT/bin/rclaude" 2>/dev/null || true

# ---------------------------------------------------------------------------
# claude_slug
# ---------------------------------------------------------------------------

test_claude_slug_basic() {
    assert_eq "-Users-natalie-Code--projects--lilith" \
        "$(claude_slug "/Users/natalie/Code/@projects/@lilith")"
}

test_claude_slug_no_special() {
    # Leading `/` becomes leading `-` (claude's own behavior — every
    # non-alphanumeric char is replaced, including the leading slash).
    assert_eq "-tmp-foo" "$(claude_slug "/tmp/foo")"
}

test_claude_slug_empty() {
    assert_eq "" "$(claude_slug "")"
}

# ---------------------------------------------------------------------------
# is_local
# ---------------------------------------------------------------------------

test_is_local_keywords() {
    assert_exit 0 is_local "local"
    assert_exit 0 is_local "localhost"
    assert_exit 0 is_local "127.0.0.1"
    assert_exit 0 is_local "::1"
}

test_is_local_unknown_host() {
    assert_exit 1 is_local "definitely-not-a-real-host-12345"
}

# ---------------------------------------------------------------------------
# dedupe_sessions (keeps highest-mtime row per uuid)
# ---------------------------------------------------------------------------

test_dedupe_sessions_keeps_newest() {
    # Two rows with the same uuid (col 3), different mtimes (col 6).
    # Should retain only the row with the higher mtime.
    _in=$(printf 'apricot\tsession\tUUID-A\tsnip\tcwd\t100\nlocal\tsession\tUUID-A\tsnip2\tcwd\t200\n')
    _out=$(printf '%s' "$_in" | dedupe_sessions)
    _count=$(printf '%s\n' "$_out" | wc -l | tr -d ' ')
    assert_eq "1" "$_count" "expected 1 deduped row" || return 1
    assert_contains "$_out" "200" "should keep mtime=200 row" || return 1
}

test_dedupe_sessions_passes_unique() {
    _in=$(printf 'apricot\tsession\tA\ts\tc\t100\nlocal\tsession\tB\ts\tc\t100\n')
    _out=$(printf '%s' "$_in" | dedupe_sessions)
    _count=$(printf '%s\n' "$_out" | wc -l | tr -d ' ')
    assert_eq "2" "$_count"
}

# ---------------------------------------------------------------------------
# get_home — always returns 0 even on failure (regression test)
# ---------------------------------------------------------------------------

test_get_home_unknown_returns_zero() {
    # Use a clearly invalid host. The function must not abort `set -e`
    # callers; previously this caused silent exits in cmd_resume.
    _v=$(get_home "definitely-not-a-real-host-12345-zzz" 2>/dev/null)
    _rc=$?
    assert_eq "0" "$_rc" "get_home must return 0 on failure" || return 1
    assert_eq "" "$_v" "should produce empty stdout on failure" || return 1
}

test_get_home_local_returns_HOME() {
    assert_eq "$HOME" "$(get_home local)"
}

# ---------------------------------------------------------------------------
# caller_hostname — used by build_inner to tell remote MCPs where to send
# things back (audio playback, etc.)
# ---------------------------------------------------------------------------

test_caller_hostname_env_override() {
    assert_eq "wg1.10.9.0.3" "$(RCLAUDE_BACK_HOST=wg1.10.9.0.3 caller_hostname)"
}

test_caller_hostname_default_adds_lan() {
    # Default behavior should produce a fqdn-ish form (either already
    # has a dot, or .lan got appended). We don't assert the exact host,
    # just that the result is non-empty and dotted.
    _out=$(unset RCLAUDE_BACK_HOST; caller_hostname)
    assert_contains "$_out" "." "caller_hostname output should be dotted"
}

# ---------------------------------------------------------------------------
# sh_quote — POSIX single-quote escape for safe remote shell interpolation
# ---------------------------------------------------------------------------

test_sh_quote_empty() {
    assert_eq "''" "$(sh_quote "")"
}

test_sh_quote_plain() {
    assert_eq "'hello'" "$(sh_quote "hello")"
}

test_sh_quote_spaces() {
    assert_eq "'hello world'" "$(sh_quote "hello world")"
}

test_sh_quote_dollar_passthrough() {
    # `$HOME` inside single quotes must remain literal — that's the whole point.
    assert_eq "'\$HOME'" "$(sh_quote '$HOME')"
}

test_sh_quote_embedded_single_quote() {
    # The classic '\'' escape: close, escape, reopen.
    assert_eq "'it'\\''s'" "$(sh_quote "it's")"
}

# ---------------------------------------------------------------------------
# filter_targets — selector-based row filter for `rclaude send`
# ---------------------------------------------------------------------------

# Two tmux rows + one disk row. Disk rows must always be dropped regardless
# of selector (can't send-keys to on-disk sessions). Col 5 is populated on
# one row to exercise the cwd-match branch.
_targets_fixture() {
    printf 'local\ttmux\tclaude-natalie-lilith-123\t1 windows\n'
    printf 'apricot\ttmux\tclaude-natalie-scripts-456\t2 windows\t/home/natalie/Code/@scripts\n'
    printf 'apricot\tdisk\t/home/natalie/Code/@projects/@lilith\tsessions=3\n'
}

test_filter_targets_all_drops_disk() {
    _out=$(_targets_fixture | filter_targets all "")
    _count=$(printf '%s\n' "$_out" | grep -c '^' || true)
    assert_eq "2" "$_count" "all selector keeps both tmux rows, drops disk"
}

test_filter_targets_host_exact() {
    _out=$(_targets_fixture | filter_targets host apricot)
    _count=$(printf '%s\n' "$_out" | grep -c '^' || true)
    assert_eq "1" "$_count" "host=apricot matches one row" || return 1
    assert_contains "$_out" "claude-natalie-scripts-456"
}

test_filter_targets_match_session_name() {
    _out=$(_targets_fixture | filter_targets match lilith)
    assert_contains "$_out" "claude-natalie-lilith-123" "lilith matches session name"
}

test_filter_targets_match_cwd_column() {
    # `@scripts` only appears in col 5 of the apricot row (the session-name
    # slug strips @ → -). The row must still match via the col-5 cwd branch.
    _out=$(_targets_fixture | filter_targets match "@scripts")
    assert_contains "$_out" "claude-natalie-scripts-456" "@scripts matches via cwd col"
}

test_filter_targets_match_no_match() {
    _out=$(_targets_fixture | filter_targets match nonexistent-pattern-xyz)
    assert_eq "" "$_out" "no match → empty output"
}

test_filter_targets_empty_input() {
    _out=$(printf '' | filter_targets all "")
    assert_eq "" "$_out" "empty input → empty output"
}