"""FlowDeck — Pydantic request models for API validation."""
from __future__ import annotations

from pydantic import BaseModel, Field, model_validator

from app.middleware.security import ALLOWED_EXTENSIONS, _ext

# ── File Save ────────────────────────────────────────────────

class FileSaveRequest(BaseModel):
    """Request model for saving/updating a file via Gitea."""
    path: str = Field(..., min_length=1, description="File path in the repository")
    content: str = Field(..., description="File content (UTF-8 encoded)")
    message: str = Field(default="Update via FlowDeck", description="Commit message")
    sha: str | None = Field(default=None, description="SHA of the file being updated (required for updates)")

    @model_validator(mode="after")
    def validate_path_extension(self):
        ext = _ext(self.path)
        if ext and ext not in ALLOWED_EXTENSIONS:
            raise ValueError(f"File extension '{ext}' is not allowed")
        return self


# ── Upload ───────────────────────────────────────────────────

class UploadValidationResult(BaseModel):
    """Result of validating an upload."""
    filename: str
    size: int
    extension: str
    valid: bool
    error: str | None = None




class IssueCreateRequest(BaseModel):
    """Request model for creating a Gitea issue."""
    title: str = Field(..., min_length=1, max_length=500)
    body: str = Field(default="")
    labels: str = Field(default="", description="Comma-separated label IDs")
    milestone: str = Field(default="", description="Milestone ID")
    assignee: str = Field(default="")


class IssueUpdateRequest(BaseModel):
    """Request model for updating a Gitea issue (partial update)."""
    title: str | None = Field(default=None, max_length=500)
    body: str | None = Field(default=None)
    state: str | None = Field(default=None, pattern=r"^(open|closed)$")
    labels: str | None = Field(default=None, description="Comma-separated label IDs")
    milestone: str | None = Field(default=None)
    assignee: str | None = Field(default=None)


# ── Card Move ────────────────────────────────────────────────

class CardMoveRequest(BaseModel):
    """Request model for moving a card between columns."""
    owner: str = Field(..., min_length=1)
    repo: str = Field(..., min_length=1)
    issue_id: int = Field(..., gt=0)
    column: str = Field(..., min_length=1)


# ── Column Mapping ───────────────────────────────────────────

class ColMappingRequest(BaseModel):
    """Request model for column-to-label mapping."""
    owner: str = Field(..., min_length=1)
    repo: str = Field(..., min_length=1)
    column: str = Field(..., min_length=1)
    gitea_label: str = Field(..., min_length=1)
    close_issue: bool = Field(default=False)