from __future__ import annotations

from datetime import datetime
from uuid import UUID

from pydantic import BaseModel, ConfigDict, Field, field_validator


class FishOut(BaseModel):
    model_config = ConfigDict(from_attributes=True)
    id: UUID
    slug: str
    name_ru: str
    trophy_weight_g: int | None


class WaterbodyOut(BaseModel):
    model_config = ConfigDict(from_attributes=True)
    id: UUID
    slug: str
    name_ru: str
    unlock_level: int | None


class BaitOut(BaseModel):
    model_config = ConfigDict(from_attributes=True)
    id: UUID
    name: str
    normalized_name: str
    kind: str


class ActivityOut(BaseModel):
    spot_id: UUID
    waterbody_slug: str
    waterbody: str
    fish_slug: str
    fish: str
    x: int
    y: int
    best_bait: str | None
    catches: int
    unique_players: int
    average_weight_g: int
    max_weight_g: int
    last_confirmed_at: datetime
    activity_score: int
    confidence_score: int
    explanation: str


class CatchOut(BaseModel):
    id: UUID
    fish: str
    weight_g: int
    bait: str | None
    player_name: str | None
    caught_at: datetime | None
    reported_at: datetime
    retrieve_method: str | None
    retrieve_speed: int | None


class SpotOut(BaseModel):
    id: UUID
    waterbody_slug: str
    waterbody: str
    x: int
    y: int
    description: str | None
    catches_24h: int
    catches_3d: int
    catches_7d: int
    top_baits: list[str]


class OfficialRecordOut(BaseModel):
    id: UUID
    fish: str
    weight_g: int
    waterbody: str
    bait: str | None
    player_name: str | None
    record_date: datetime | None
    category: str | None
    region: str | None
    source_url: str | None


class ImportRunOut(BaseModel):
    model_config = ConfigDict(from_attributes=True)
    id: UUID
    started_at: datetime
    finished_at: datetime | None
    status: str
    source_url: str
    rows_seen: int
    rows_created: int
    rows_updated: int
    error_summary: str | None
    response_status: int | None
    response_etag: str | None
    response_last_modified: str | None
    response_content_type: str | None
    response_bytes: int | None
    not_modified: bool


class CatchReportCreate(BaseModel):
    fish_slug: str
    waterbody_slug: str
    x: int = Field(ge=-10_000, le=10_000)
    y: int = Field(ge=-10_000, le=10_000)
    weight_g: int = Field(gt=0, le=3_000_000)
    bait_name: str | None = Field(default=None, max_length=200)
    fishing_method: str | None = Field(default=None, max_length=50)
    rig_type: str | None = Field(default=None, max_length=100)
    retrieve_method: str | None = Field(default=None, max_length=100)
    retrieve_speed: int | None = Field(default=None, ge=0, le=100)
    caught_at: datetime | None = None
    player_name: str | None = Field(default=None, max_length=100)
    source_url: str | None = Field(default=None, max_length=1000)
    comment: str | None = Field(default=None, max_length=1000)
    website: str = Field(default="", max_length=200)

    @field_validator("fish_slug", "waterbody_slug")
    @classmethod
    def nonempty_slug(cls, value: str) -> str:
        value = value.strip()
        if not value:
            raise ValueError("must not be empty")
        return value


class CatchReportCreated(BaseModel):
    id: UUID
    moderation_status: str


class AdminCatchReportOut(BaseModel):
    id: UUID
    fish: str
    waterbody: str
    coordinates: str
    weight_g: int
    bait: str | None
    player_name: str | None
    reported_at: datetime
    moderation_status: str
    comment: str | None
    screenshot_url: str | None


class ModerationUpdate(BaseModel):
    status: str
    reason: str | None = Field(default=None, max_length=1000)

    @field_validator("status")
    @classmethod
    def known_status(cls, value: str) -> str:
        if value not in {"approved", "rejected", "pending"}:
            raise ValueError("unknown moderation status")
        return value


class ExternalObservationOut(BaseModel):
    id: UUID
    source_system: str
    source_external_id: str
    source_url: str
    fish_name: str
    fish_external_id: str | None
    waterbody_name: str
    waterbody_external_id: str | None
    x: int | None
    y: int | None
    weight_g: int | None
    published_at: datetime | None
    last_seen_at: datetime
    status: str
    fish_slug: str | None
    waterbody_slug: str | None
    catch_report_id: UUID | None
    review_note: str | None


class ExternalObservationMapping(BaseModel):
    fish_slug: str
    waterbody_slug: str
    note: str | None = Field(default=None, max_length=1000)


class ExternalObservationDecision(BaseModel):
    reason: str = Field(min_length=1, max_length=1000)


class ExternalObservationPublished(BaseModel):
    observation_id: UUID
    catch_report_id: UUID
    status: str