from __future__ import annotations

from datetime import datetime
from enum import StrEnum

from pydantic import BaseModel, Field, JsonValue


class SelfCheckStatus(StrEnum):
    PASS = "pass"  # noqa: S105 - diagnostic status, not a credential
    WARN = "warn"
    FAIL = "fail"
    UNKNOWN = "unknown"


class SelfCheckKey(StrEnum):
    API = "api"
    DATABASE = "database"
    REDIS = "redis"
    MANIFESTS = "manifests"
    STORAGE = "storage"
    NODES = "nodes"
    SCHEDULER = "scheduler"
    DEPLOYMENTS = "deployments"
    BACKUP = "backup"
    CREDENTIALS = "credentials"
    CONFIGURATION = "configuration"
    RELEASE = "release"


class SelfCheckActionCode(StrEnum):
    NONE_REQUIRED = "none_required"
    REVIEW_API_IDENTITY = "review_api_identity"
    CHECK_DATABASE = "check_database"
    CHECK_REDIS = "check_redis"
    REVIEW_MANIFESTS = "review_manifests"
    REVIEW_STORAGE = "review_storage"
    REVIEW_NODE_FRESHNESS = "review_node_freshness"
    REVIEW_SCHEDULER_INPUTS = "review_scheduler_inputs"
    REVIEW_DEPLOYMENTS = "review_deployments"
    VERIFY_BACKUP_PAYLOAD = "verify_backup_payload"
    REVIEW_CREDENTIALS = "review_credentials"
    COMPLETE_CONFIGURATION = "complete_configuration"
    VERIFY_RELEASE_IDENTITY = "verify_release_identity"


class SelfCheckOverall(StrEnum):
    HEALTHY = "healthy"
    DEGRADED = "degraded"
    UNHEALTHY = "unhealthy"


class SelfCheckNextAction(BaseModel):
    code: SelfCheckActionCode
    summary: str


class SelfCheckResult(BaseModel):
    key: SelfCheckKey
    label: str
    status: SelfCheckStatus
    summary: str
    detail: str | None = None
    evidence: dict[str, JsonValue] = Field(default_factory=dict)
    next_action: SelfCheckNextAction


class SelfCheckReport(BaseModel):
    observed_at: datetime
    overall: SelfCheckOverall
    read_only: bool = True
    checks: list[SelfCheckResult] = Field(default_factory=list)