"""Control-plane model enumerations."""

from enum import IntEnum, IntFlag


class ModeId(IntEnum):
    """Upstream ``modeId`` parameter values.

    Integer values are stable — used as array indices in the hot path.
    """

    AUTO = 0  # modeId="auto"
    FAST = 1  # modeId="fast"
    EXPERT = 2  # modeId="expert"
    HEAVY = 3  # modeId="heavy"    — only available on heavy-pool accounts
    GROK_4_3 = 4  # modeId="grok-420-computer-use-sa" — super/heavy only

    def to_api_str(self) -> str:
        _OVERRIDES: dict[int, str] = {
            ModeId.GROK_4_3: "grok-420-computer-use-sa",
        }
        return _OVERRIDES.get(self, self.name.lower())  # type: ignore[arg-type]


class Tier(IntEnum):
    """Account tier — determines which pool is selected."""

    BASIC = 0  # pool="basic"
    SUPER = 1  # pool="super"
    HEAVY = 2  # pool="heavy"


class Capability(IntFlag):
    """Bitmask of features a model supports."""

    CHAT = 1
    IMAGE = 2
    IMAGE_EDIT = 4
    VIDEO = 8
    VOICE = 16
    ASSET = 32


# Human-readable mode strings in API order.
MODE_STRINGS: dict[ModeId, str] = {
    ModeId.AUTO: "auto",
    ModeId.FAST: "fast",
    ModeId.EXPERT: "expert",
    ModeId.HEAVY: "heavy",
}

ALL_MODES: tuple[ModeId, ...] = (ModeId.AUTO, ModeId.FAST, ModeId.EXPERT)
ALL_MODES_WITH_HEAVY: tuple[ModeId, ...] = (
    ModeId.AUTO,
    ModeId.FAST,
    ModeId.EXPERT,
    ModeId.HEAVY,
)
ALL_MODES_FULL: tuple[ModeId, ...] = (
    ModeId.AUTO,
    ModeId.FAST,
    ModeId.EXPERT,
    ModeId.HEAVY,
    ModeId.GROK_4_3,
)

__all__ = [
    "ModeId",
    "Tier",
    "Capability",
    "MODE_STRINGS",
    "ALL_MODES",
    "ALL_MODES_WITH_HEAVY",
    "ALL_MODES_FULL",
]