from __future__ import annotations

import time

from blackbox.dashboard.rendering import (
    esc,
    esc_md,
    fmt_duration,
    fmt_relative,
    fmt_time,
    passes_filter,
    render_log_html,
    shorten_paths,
    tool_call_html,
)
from blackbox.models import LogEntry

# ---------------------------------------------------------------------------
# fmt_time
# ---------------------------------------------------------------------------


class TestFmtTime:
    def test_epoch_zero(self) -> None:
        assert "00:00:00" == fmt_time(0.0)

    def test_known_timestamp(self) -> None:
        assert "01:46:40" == fmt_time(1_000_000_000.0)

    def test_fractional_seconds_truncated(self) -> None:
        assert "00:00:00" == fmt_time(0.999)


# ---------------------------------------------------------------------------
# fmt_duration
# ---------------------------------------------------------------------------


class TestFmtDuration:
    def test_zero_seconds(self) -> None:
        assert "0s" == fmt_duration(100.0, 100.0)

    def test_seconds_only(self) -> None:
        assert "45s" == fmt_duration(0.0, 45.0)

    def test_minutes_and_seconds(self) -> None:
        assert "2m30s" == fmt_duration(0.0, 150.0)

    def test_hours_and_minutes(self) -> None:
        assert "1h30m" == fmt_duration(0.0, 5400.0)

    def test_negative_clamps_to_zero(self) -> None:
        assert "0s" == fmt_duration(100.0, 50.0)

    def test_none_finished_uses_current_time(self) -> None:
        result = fmt_duration(time.time() - 10, None)
        assert result.endswith("s")

    def test_exactly_60_seconds(self) -> None:
        assert "1m00s" == fmt_duration(0.0, 60.0)

    def test_exactly_one_hour(self) -> None:
        assert "1h00m" == fmt_duration(0.0, 3600.0)


# ---------------------------------------------------------------------------
# fmt_relative
# ---------------------------------------------------------------------------


class TestFmtRelative:
    def test_just_now(self) -> None:
        assert "just now" == fmt_relative(time.time())

    def test_minutes_ago(self) -> None:
        assert "5m ago" == fmt_relative(time.time() - 300)

    def test_hours_ago(self) -> None:
        assert "2h ago" == fmt_relative(time.time() - 7200)

    def test_days_ago(self) -> None:
        assert "3d ago" == fmt_relative(time.time() - 259200)


# ---------------------------------------------------------------------------
# esc / esc_md
# ---------------------------------------------------------------------------


class TestEsc:
    def test_ampersand(self) -> None:
        assert "a & b" == esc("a & b")

    def test_angle_brackets(self) -> None:
        assert "&lt;div&gt;" == esc("<div>")

    def test_newlines_become_br(self) -> None:
        assert "a<br>b" == esc("a\nb")

    def test_combined(self) -> None:
        assert "&lt;b&gt;hi&lt;/b&gt;<br>&amp;" == esc("<b>hi</b>\n&")


class TestEscMd:
    def test_bold_converted(self) -> None:
        result = esc_md("hello **world**")
        assert '<strong class="text-white">world</strong>' in result

    def test_html_still_escaped(self) -> None:
        result = esc_md("<script>**bold**")
        assert "&lt;script&gt;" in result
        assert '<strong class="text-white">bold</strong>' in result

    def test_no_bold(self) -> None:
        assert "plain text" == esc_md("plain text")


# ---------------------------------------------------------------------------
# shorten_paths
# ---------------------------------------------------------------------------


class TestShortenPaths:
    def test_removes_tmp_paths(self) -> None:
        assert "file: " == shorten_paths("file: /tmp/abc123/foo.py")

    def test_removes_private_tmp_paths(self) -> None:
        assert "file: " == shorten_paths("file: /private/tmp/abc123/bar.py")

    def test_no_match_unchanged(self) -> None:
        assert "/home/user/code" == shorten_paths("/home/user/code")


# ---------------------------------------------------------------------------
# passes_filter
# ---------------------------------------------------------------------------


class TestPassesFilter:
    def make(self, level: str = "info", message: str = "hi", source: str = "user") -> LogEntry:
        return LogEntry(timestamp=0.0, source=source, level=level, message=message)

    def test_empty_message_rejected(self) -> None:
        assert not passes_filter(self.make(message=""), "all", None)

    def test_whitespace_only_rejected(self) -> None:
        assert not passes_filter(self.make(message="   "), "all", None)

    def test_all_filter_accepts_everything(self) -> None:
        assert passes_filter(self.make(), "all", None)

    def test_skip_levels_rejected_in_compact(self) -> None:
        for level in ("delta", "stream", "block_stop", "block_start", "thinking_delta", "tool_start"):
            assert not passes_filter(self.make(level=level), "compact", None)

    def test_allowed_set_filters(self) -> None:
        allowed = {"error"}
        assert passes_filter(self.make(level="error"), "errors", allowed)
        assert not passes_filter(self.make(level="info"), "errors", allowed)

    def test_thinking_rejected_in_compact(self) -> None:
        entry = self.make(level="assistant", message="(thinking)")
        assert not passes_filter(entry, "compact", None)

    def test_assistant_non_thinking_accepted(self) -> None:
        entry = self.make(level="assistant", message="Hello there")
        assert passes_filter(entry, "compact", None)

    def test_skip_levels_pass_in_all_mode(self) -> None:
        entry = self.make(level="delta", message="x")
        assert passes_filter(entry, "all", None)


# ---------------------------------------------------------------------------
# tool_call_html
# ---------------------------------------------------------------------------


class TestToolCallHtml:
    def test_short_preview_no_details(self) -> None:
        html = tool_call_html("ls -la")
        assert "<details" not in html
        assert "ls -la" in html

    def test_three_lines_no_details(self) -> None:
        html = tool_call_html("line1\nline2\nline3")
        assert "<details" not in html

    def test_long_preview_has_details(self) -> None:
        text = "\n".join(f"line {i}" for i in range(10))
        html = tool_call_html(text)
        assert "<details" in html
        assert "+9 lines" in html

    def test_tmp_paths_shortened(self) -> None:
        html = tool_call_html("/tmp/abc123/foo.py")
        assert "/tmp/" not in html


# ---------------------------------------------------------------------------
# render_log_html
# ---------------------------------------------------------------------------


class TestRenderLogHtml:
    def make(self, **kw: object) -> LogEntry:
        defaults = {
            "timestamp": 1_000_000_000.0,
            "source": "claude",
            "level": "assistant",
            "message": "hello",
            "data": {},
        }
        defaults.update(kw)
        return LogEntry(**defaults)  # type: ignore[arg-type]

    def test_user_message_green(self) -> None:
        html = render_log_html(self.make(source="user", level="info"))
        assert "text-green-300" in html

    def test_assistant_message(self) -> None:
        html = render_log_html(self.make(level="assistant", message="hi"))
        assert "text-gray-100" in html

    def test_thinking_italic(self) -> None:
        html = render_log_html(self.make(level="assistant", message="(thinking)"))
        assert "italic" in html

    def test_error_red(self) -> None:
        html = render_log_html(self.make(level="error", message="fail"))
        assert "text-red-400" in html

    def test_tool_call_amber_badge(self) -> None:
        html = render_log_html(
            self.make(
                level="tool_call",
                message="Bash: ls",
                data={"tool": "Bash", "input_preview": "ls"},
            )
        )
        assert "bg-amber-500" in html
        assert "Bash" in html

    def test_tool_result_has_res_badge(self) -> None:
        html = render_log_html(self.make(level="tool_result", message="output"))
        assert "RES" in html

    def test_tool_result_truncates_long_messages(self) -> None:
        html = render_log_html(self.make(level="tool_result", message="x" * 600))
        assert "..." in html

    def test_contains_timestamp(self) -> None:
        html = render_log_html(self.make())
        assert "01:46:40" in html

    def test_source_badges(self) -> None:
        for source, label in [("claude", "CLU"), ("user", "USR"), ("system", "SYS")]:
            html = render_log_html(self.make(source=source, level="info"))
            assert label in html

    def test_tool_levels_have_indent_and_opacity(self) -> None:
        html = render_log_html(self.make(level="tool_call", data={"tool": "Read", "input_preview": "x"}))
        assert "opacity-60" in html
        assert "pl-4" in html

    def test_non_tool_no_indent(self) -> None:
        html = render_log_html(self.make(level="info"))
        assert "pl-4" not in html