from __future__ import annotations

from sqlalchemy import select
from sqlalchemy.orm import Session

from app.models.report_settings import (
    OrionImagePosition,
    OrionImageSize,
    OrionLayoutProfile,
    OrionLogoSize,
    OrionPageMargin,
    OrionReportSettings,
    OrionReportSettingsScope,
    OrionSignatureMode,
    OrionSpacing,
    OrionTableFontSize,
)
from app.models.user import User
from app.schemas.domain import OrionReportSettingsUpdate


class OrionReportSettingsService:
    def __init__(self, session: Session) -> None:
        self.session = session

    def get_global(self) -> OrionReportSettings:
        settings = self.session.scalar(
            select(OrionReportSettings).where(
                OrionReportSettings.scope == OrionReportSettingsScope.global_.value
            )
        )
        if settings is not None:
            return settings
        settings = OrionReportSettings(
            scope=OrionReportSettingsScope.global_.value,
            layout_profile=OrionLayoutProfile.standard.value,
            show_cover_result_text=True,
            signature_mode=OrionSignatureMode.technical_only.value,
            image_size=OrionImageSize.medium.value,
            page_break_before_main_chapters=True,
            page_margin=OrionPageMargin.standard.value,
            section_spacing=OrionSpacing.standard.value,
            table_layout=OrionSpacing.standard.value,
            table_font_size=OrionTableFontSize.standard.value,
            image_position=OrionImagePosition.side_by_side.value,
            max_images_per_page=2,
            show_image_captions=True,
            show_header=True,
            show_footer=True,
            logo_size=OrionLogoSize.medium.value,
            compact_cover=False,
        )
        self.session.add(settings)
        self.session.flush()
        return settings

    def update_global(self, payload: OrionReportSettingsUpdate, user: User) -> OrionReportSettings:
        settings = self.get_global()
        settings.layout_profile = payload.layout_profile.value
        settings.show_cover_result_text = payload.show_cover_result_text
        settings.signature_mode = payload.signature_mode.value
        settings.image_size = payload.image_size.value
        settings.page_break_before_main_chapters = payload.page_break_before_main_chapters
        settings.page_margin = payload.page_margin.value
        settings.section_spacing = payload.section_spacing.value
        settings.table_layout = payload.table_layout.value
        settings.table_font_size = payload.table_font_size.value
        settings.image_position = payload.image_position.value
        settings.max_images_per_page = payload.max_images_per_page
        settings.show_image_captions = payload.show_image_captions
        settings.show_header = payload.show_header
        settings.show_footer = payload.show_footer
        settings.logo_size = payload.logo_size.value
        settings.compact_cover = payload.compact_cover
        settings.updated_by_user_id = user.id
        self.session.flush()
        return settings