"""Tests for Markdown -> Telegram HTML conversion."""

from __future__ import annotations

from integrations.telegram.formatting import (
    looks_like_telegram_html,
    markdown_to_telegram_html,
)


def test_bold_becomes_b_tag() -> None:
    assert (
        markdown_to_telegram_html("- **CLI / shell** questions") == "• <b>CLI / shell</b> questions"
    )


def test_double_underscore_bold() -> None:
    assert markdown_to_telegram_html("__strong__") == "<b>strong</b>"


def test_inline_code_becomes_code_tag() -> None:
    assert markdown_to_telegram_html("you have `github` connected") == (
        "you have <code>github</code> connected"
    )


def test_italic_underscore() -> None:
    assert markdown_to_telegram_html("_also_") == "<i>also</i>"


def test_slack_single_star_bold() -> None:
    assert markdown_to_telegram_html("*Blocked PRs:*") == "<b>Blocked PRs:</b>"


def test_link_becomes_anchor() -> None:
    assert markdown_to_telegram_html("[docs](https://x.com/a)") == (
        '<a href="https://x.com/a">docs</a>'
    )


def test_slack_link_becomes_anchor() -> None:
    assert markdown_to_telegram_html("<https://github.com/pr/1|#3811>") == (
        '<a href="https://github.com/pr/1">#3811</a>'
    )


def test_html_special_chars_are_escaped() -> None:
    assert markdown_to_telegram_html("a < b & c > d") == "a &lt; b &amp; c &gt; d"


def test_code_content_is_escaped_and_not_reformatted() -> None:
    assert markdown_to_telegram_html("`x = a ** b < c`") == "<code>x = a ** b &lt; c</code>"


def test_fenced_code_block_becomes_pre() -> None:
    out = markdown_to_telegram_html("```py\nx = 1 < 2\n```")
    assert out == "<pre>x = 1 &lt; 2\n</pre>"


def test_unbalanced_markdown_left_as_text() -> None:
    assert markdown_to_telegram_html("**oops no close") == "**oops no close"


def test_plain_text_passthrough() -> None:
    assert markdown_to_telegram_html("just plain words") == "just plain words"


def test_atx_header_becomes_bold() -> None:
    assert markdown_to_telegram_html("## Configured Monitors") == "<b>Configured Monitors</b>"


def test_horizontal_rule_becomes_blank_line() -> None:
    assert markdown_to_telegram_html("before\n---\nafter") == "before\n\nafter"


def test_bullet_list_uses_bullet_glyph() -> None:
    assert markdown_to_telegram_html("- Triggers when CPU idle drops below 10%") == (
        "• Triggers when CPU idle drops below 10%"
    )


def test_numbered_list_preserved() -> None:
    assert markdown_to_telegram_html("1. **List open pull requests**") == (
        "1. <b>List open pull requests</b>"
    )


def test_markdown_table_becomes_mobile_friendly_rows() -> None:
    text = (
        "| Monitor | Type | Current State |\n"
        "|---|---|---|\n"
        "| CPU usage is high | Query Alert | No Data |"
    )
    out = markdown_to_telegram_html(text)
    assert out == ("• <b>CPU usage is high</b> — Query Alert · No Data")


def test_pr_table_becomes_mobile_friendly_rows() -> None:
    text = (
        "| # | Title | Author | Status | Checks |\n"
        "|---|---|---|---|---|\n"
        "| 3811 | docs: fix stale cli | Aditya | Blocked | ❌ Failed |"
    )
    out = markdown_to_telegram_html(text)
    assert out == ("• <b>3811</b> — docs: fix stale cli · Aditya · Blocked · ❌ Failed")


def test_pre_rendered_html_is_left_untouched() -> None:
    html = "<b>Daily Reliability Summary</b>\n\n<i>Generated by OpenSRE</i>"
    assert markdown_to_telegram_html(html) == html
    assert looks_like_telegram_html(html) is True


def test_double_star_bold_is_not_wrapped_twice() -> None:
    text = "• **Resolve** — Identifies which integrations to query"
    out = markdown_to_telegram_html(text)
    assert out == "• <b>Resolve</b> — Identifies which integrations to query"
    assert out.count("<b>") == 1
    assert "**" not in out


def test_investigation_pipeline_bullets_render_once() -> None:
    text = (
        "When you trigger an investigation, it runs through these stages:\n\n"
        "• **Resolve** — Identifies which integrations to query\n"
        "• **Intake** — Parses the raw alert into structured state\n"
        "• **Gather evidence** — AI agent queries your connected tools\n"
        "• **Diagnose** — Extracts structured RCA fields\n"
        "• **Report** — Delivers findings to terminal, Slack, GitLab, etc.\n\n"
        "Your current session"
    )
    out = markdown_to_telegram_html(text)
    assert out.count("<b>Resolve</b>") == 1
    assert out.count("<b>Intake</b>") == 1
    assert out.count("<b>Gather evidence</b>") == 1
    assert "• <b>Resolve</b> — Identifies which integrations to query" in out
    assert "**" not in out


def test_triple_star_bold_does_not_double_wrap() -> None:
    out = markdown_to_telegram_html("***Resolve***")
    assert out.count("<b>") == 1
    assert "<b><b>" not in out