"""Browser-matrix stage-1 profile registry.

Each profile is a deterministic recipe for a Playwright BrowserContext.
The orchestrator runs the scan once per profile and aggregates the
results with the worst-of-rule (a HIGH on any browser → HIGH overall).

Keep this module dependency-light so it can be imported in unit tests
without spawning Playwright. The Playwright glue lives in
`services/multi_browser_scanner.py`.

Profile schema:
  {
    "id":         str    canonical identifier shown in the audit report
    "label":      str    human-readable name
    "engine":     str    blink | gecko | webkit
    "channel":    str?   Playwright channel ('chrome' / 'msedge')
    "device":     str?   Playwright devices preset for mobile emulation
    "headless":   bool
    "viewport":   {"width": int, "height": int}  (ignored when `device` set)
    "locale":     str
    "timezone":   str
    "user_agent": str?   overridden UA when not derived from device
  }
"""

from __future__ import annotations

DEFAULT_PROFILES: list[dict] = [
    {
        "id": "chromium-headed-de",
        "label": "Chromium (Headed) · de-DE",
        "engine": "blink",
        "channel": None,
        "device": None,
        "headless": False,
        "viewport": {"width": 1920, "height": 1080},
        "locale": "de-DE",
        "timezone": "Europe/Berlin",
        "user_agent": None,
    },
    {
        "id": "firefox-headed-de",
        "label": "Firefox (Headed, ETP-Standard) · de-DE",
        "engine": "gecko",
        "channel": None,
        "device": None,
        "headless": False,
        "viewport": {"width": 1920, "height": 1080},
        "locale": "de-DE",
        "timezone": "Europe/Berlin",
        "user_agent": None,
    },
    {
        "id": "webkit-headed-de",
        "label": "WebKit (Headed) · de-DE",
        "engine": "webkit",
        "channel": None,
        "device": None,
        "headless": False,
        "viewport": {"width": 1920, "height": 1080},
        "locale": "de-DE",
        "timezone": "Europe/Berlin",
        "user_agent": None,
    },
    {
        "id": "iphone-mobile-safari-de",
        "label": "Mobile Safari (iPhone 15) · de-DE",
        "engine": "webkit",
        "channel": None,
        "device": "iPhone 15",
        "headless": False,
        "viewport": None,
        "locale": "de-DE",
        "timezone": "Europe/Berlin",
        "user_agent": None,
    },
]


# Optional profiles enabled via env var BROWSER_PROFILES_EXTRA
EXTRA_PROFILES: dict[str, dict] = {
    "chrome-channel-desktop-de": {
        "id": "chrome-channel-desktop-de",
        "label": "Chrome Channel (Google Build) · de-DE",
        "engine": "blink",
        "channel": "chrome",
        "device": None,
        "headless": False,
        "viewport": {"width": 1920, "height": 1080},
        "locale": "de-DE",
        "timezone": "Europe/Berlin",
        "user_agent": None,
    },
    "edge-channel-desktop-de": {
        "id": "edge-channel-desktop-de",
        "label": "Edge Channel · de-DE",
        "engine": "blink",
        "channel": "msedge",
        "device": None,
        "headless": False,
        "viewport": {"width": 1920, "height": 1080},
        "locale": "de-DE",
        "timezone": "Europe/Berlin",
        "user_agent": None,
    },
    "brave-default-de": {
        "id": "brave-default-de",
        "label": "Brave Default-Shields · de-DE",
        "engine": "blink",
        "channel": None,
        "device": None,
        "headless": False,
        "viewport": {"width": 1920, "height": 1080},
        "locale": "de-DE",
        "timezone": "Europe/Berlin",
        "user_agent": None,
        "executable_path": "/usr/bin/brave-browser",
    },
}


def resolve_profiles(requested: list[str] | None) -> list[dict]:
    """Map requested ids to profile dicts. Falls back to all defaults
    when `requested` is None or empty."""
    if not requested:
        return list(DEFAULT_PROFILES)
    by_id = {p["id"]: p for p in DEFAULT_PROFILES}
    by_id.update(EXTRA_PROFILES)
    out: list[dict] = []
    for r in requested:
        prof = by_id.get(r)
        if prof:
            out.append(prof)
    return out or list(DEFAULT_PROFILES)


def default_ids() -> list[str]:
    return [p["id"] for p in DEFAULT_PROFILES]