"""Smoke-tests for the issue-linking feature in gitea_api.py.

Run::

    python scripts/test_issue_api.py
"""

import sys
import os

sys.path.insert(0, os.path.dirname(__file__))

from gitea_api import (
    _extract_issue_refs,
    format_issues_markdown,
    fetch_issue,
    fetch_linked_issues,
)

# ── Test 1: _extract_issue_refs ────────────────────────────────────────

BODY = """
This PR fixes bug in user login.

Closes #42.

Also see #99 and refs: org/other-repo#7 for related changes.
Not a ref: # 12 (space between).
"""

refs = _extract_issue_refs(BODY)
print("=== Test 1: _extract_issue_refs ===")
print(f"Found {len(refs)} refs:")
for owner, repo, num in refs:
    print(f"  owner={owner!r} repo={repo!r} num={num}")
assert len(refs) == 3, f"Expected 3 refs, got {len(refs)}"
assert (None, None, 42) in refs, "Missing #42"
assert (None, None, 99) in refs, "Missing #99"
assert ("org", "other-repo", 7) in refs, "Missing org/other-repo#7"
print("PASS\n")


# ── Test 2: format_issues_markdown ─────────────────────────────────────

issues = [
    {
        "number": 42,
        "title": "Login bug",
        "state": "open",
        "labels": ["bug", "high-priority"],
        "body": "Users cannot log in with email.",
        "html_url": "https://gitea.example.com/org/repo/issues/42",
    },
    {
        "number": 99,
        "title": "Add rate limiting",
        "state": "closed",
        "labels": [],
        "body": "Need to rate-limit login attempts.",
        "html_url": "https://gitea.example.com/org/repo/issues/99",
    },
]

md = format_issues_markdown(issues)
print("=== Test 2: format_issues_markdown ===")
print(md[:500])
assert "Login bug" in md
assert "high-priority" in md
assert "Add rate limiting" in md
assert "closed" in md
print("PASS\n")


# ── Test 3: E2E with real API (optional) ───────────────────────────────

GITEA_URL = os.environ.get("GITEA_URL", "")
API_TOKEN = os.environ.get("GITEA_API_TOKEN", "")
TARGET_REPO = os.environ.get("GITEA_REPO", "")

if GITEA_URL and API_TOKEN and TARGET_REPO:
    print("=== Test 3: E2E with real API ===")
    issues = fetch_linked_issues(GITEA_URL, API_TOKEN, TARGET_REPO, BODY)
    print(f"Fetched {len(issues)} issue(s)")
    for iss in issues:
        print(f"  #{iss['number']}: {iss['title']} [{iss['state']}]")
        print(f"    body: {iss['body'][:100]}...")
    print("PASS\n")
else:
    print("=== Test 3: E2E (skipped — set GITEA_URL, GITEA_API_TOKEN, GITEA_REPO) ===\n")


# ── Test 4: Edge cases ─────────────────────────────────────────────────

print("=== Test 4: Edge cases ===")

# Empty body
assert _extract_issue_refs("") == [], "Empty body should return empty list"
print("  empty body: PASS")

# No issue refs
assert _extract_issue_refs("Just a regular description.") == [], \
    "No refs should return empty list"
print("  no refs: PASS")

# Duplicate detection: "Fixes #1" + bare "#1" → only one entry
refs = _extract_issue_refs("Fixes #42. Also #42.")
nums = [r[2] for r in refs]
assert nums == [42], f"Duplicated #42 should appear once, got {nums}"
print("  duplicate dedup: PASS")

# Mixed refs
refs = _extract_issue_refs("closes #10 FIXES #20 Resolves org/x#30")
assert len(refs) == 3
print("  mixed keywords: PASS")

# Empty issues markdown
assert format_issues_markdown([]) == ""
print("  empty markdown: PASS\n")


print("All tests passed!")