from __future__ import annotations

from datetime import datetime
from pathlib import Path
from typing import Any, Literal

from pydantic import BaseModel, Field


class ProductInput(BaseModel):
    source: Literal["manual", "external"]
    external_product_id: str | None = None
    name: str
    sku: str = ""
    specification: str = ""

    def __init__(
        self,
        source: Literal["manual", "external"] | None = None,
        external_product_id: str | None = None,
        name: str | None = None,
        sku: str = "",
        specification: str = "",
        **data: Any,
    ) -> None:
        if source is not None:
            data["source"] = source
        if external_product_id is not None or "external_product_id" not in data:
            data["external_product_id"] = external_product_id
        if name is not None:
            data["name"] = name
        if sku or "sku" not in data:
            data["sku"] = sku
        if specification or "specification" not in data:
            data["specification"] = specification
        super().__init__(**data)


class ProductRecord(BaseModel):
    product_id: str
    source: Literal["manual", "external"]
    external_product_id: str | None = None
    name: str
    sku: str = ""
    specification: str = ""
    status: Literal["active", "pending_cleanup", "purged"] = "active"
    created_at: datetime
    updated_at: datetime
    purge_after: datetime | None = None


class ProductVersionRecord(BaseModel):
    version_id: str
    product_id: str
    version: str = ""
    metadata: dict[str, Any] = Field(default_factory=dict)
    created_at: datetime


class ProductImageRecord(BaseModel):
    image_id: str
    product_id: str
    version_id: str
    image_path: str = ""
    image_type: str = ""
    created_at: datetime


class ProductWordcloudArchiveRecord(BaseModel):
    archive_id: str
    product_id: str
    version_id: str
    archive_path: str = ""
    created_at: datetime


class JobCreateResponse(BaseModel):
    job_id: str


class JobEvent(BaseModel):
    type: Literal["log", "status"]
    stage: str
    progress_percent: int = Field(ge=0, le=100)
    message: str
    timestamp: datetime
    elapsed_seconds: float | None = None


class JobStatus(BaseModel):
    job_id: str
    status: Literal["queued", "running", "success", "failed"]
    stage: str
    progress_percent: int = Field(ge=0, le=100)
    message: str
    created_at: datetime
    updated_at: datetime
    artifacts: dict[str, str]
    error: str = ""
    elapsed_seconds: float | None = None


class JobDetail(BaseModel):
    status: JobStatus
    recent_events: list[JobEvent]


class JobResult(BaseModel):
    job_id: str
    status: Literal["queued", "running", "success", "failed"]
    image_url: str = ""
    svg_url: str = ""
    svg_stroke_url: str = ""
    db_url: str = ""
    metrics_url: str = ""
    elapsed_seconds: float | None = None


class WordLocation(BaseModel):
    id: int
    name: str
    x: int
    y: int
    font_size: int
    color: str = ""
    orientation: Literal["horizontal", "vertical"] = "horizontal"
    box_x: int
    box_y: int
    box_width: int
    box_height: int


class JobLocationSearchResult(BaseModel):
    job_id: str
    query: str = ""
    mode: Literal["exact", "contains"] = "exact"
    total: int = 0
    canvas_width: int = 0
    canvas_height: int = 0
    matches: list[WordLocation] = Field(default_factory=list)


class JobPaths(BaseModel):
    root: Path
    input_dir: Path
    output_dir: Path
    mask_path: Path
    excel_path: Path
    config_path: Path


class Template(BaseModel):
    id: str
    name: str
    width: int
    height: int
    aspect_ratio: str
    description: str = ""


class Asset(BaseModel):
    asset_id: str
    name: str
    type: str
    mime_type: str
    width: int
    height: int
    file_size: int
    file_url: str
    job_id: str = ""
    created_at: datetime


class LineSpacingAnalysisRequest(BaseModel):
    percentile: float = Field(default=3, ge=0, le=100)
    elementWidth: float = Field(gt=0)
    elementHeight: float = Field(gt=0)
    sampleStep: float = Field(default=2, gt=0)


class LineSpacingClosestPoints(BaseModel):
    ax: float
    ay: float
    bx: float
    by: float


class LineSpacingAnalysisSummary(BaseModel):
    percentile: float
    spacingPx: float
    spacingMm: float
    minSpacingPx: float
    minSpacingMm: float
    sampleStep: float
    curveCount: int
    segmentCount: int
    nearestCount: int
    sourceWidth: float
    sourceHeight: float
    elementWidth: float
    elementHeight: float
    computedAt: str
    closestPoints: LineSpacingClosestPoints | None = None


class DesignTemplate(BaseModel):
    template_id: str
    name: str
    description: str = ""
    document: dict
    reference_asset_ids: list[str] = Field(default_factory=list)
    cover_asset_id: str = ""
    created_at: datetime
    updated_at: datetime


class Project(BaseModel):
    project_id: str
    name: str
    template_id: str
    background_color: str
    stickers: list[dict] = Field(default_factory=list)
    created_at: datetime
    updated_at: datetime


class ProjectSummary(BaseModel):
    project_id: str
    name: str
    template_id: str
    background_color: str
    sticker_count: int = 0
    created_at: datetime
    updated_at: datetime


class Font(BaseModel):
    font_id: str
    name: str
    filename: str
    file_size: int
    created_at: datetime