# Copyright (c) 2025 Patrick Motsch
# All rights reserved.
import pytest
from modules.serviceCenter.services.serviceGeneration.styleDefaults import (
    resolveStyle,
    resolveTheme,
    DEFAULT_STYLE,
    THEME_PRESETS,
)


def test_resolve_none_returns_defaults():
    result = resolveStyle(None)
    assert result == DEFAULT_STYLE


def test_resolve_empty_returns_defaults():
    result = resolveStyle({})
    assert result == DEFAULT_STYLE


def test_override_single_color():
    result = resolveStyle({"colors": {"primary": "#FF0000"}})
    assert result["colors"]["primary"] == "#FF0000"
    assert result["colors"]["secondary"] == DEFAULT_STYLE["colors"]["secondary"]


def test_override_nested_heading():
    result = resolveStyle({"headings": {"h1": {"sizePt": 30}}})
    assert result["headings"]["h1"]["sizePt"] == 30
    assert result["headings"]["h1"]["weight"] == "bold"


def test_override_font():
    result = resolveStyle({"fonts": {"primary": "Arial"}})
    assert result["fonts"]["primary"] == "Arial"
    assert result["fonts"]["monospace"] == "Consolas"


def test_full_style_passthrough():
    custom = {"fonts": {"primary": "Helvetica", "monospace": "Monaco"}}
    result = resolveStyle(custom)
    assert result["fonts"]["primary"] == "Helvetica"
    assert result["fonts"]["monospace"] == "Monaco"


def test_override_document_title_partial_merge():
    result = resolveStyle({"documentTitle": {"sizePt": 32}})
    assert result["documentTitle"]["sizePt"] == 32
    assert result["documentTitle"]["align"] == "center"
    assert result["headings"]["h1"]["sizePt"] == DEFAULT_STYLE["headings"]["h1"]["sizePt"]


# ── Theme presets (A3) ─────────────────────────────────────────────

def test_resolve_theme_unknown_is_empty():
    assert resolveTheme(None) == {}
    assert resolveTheme("does-not-exist") == {}


def test_resolve_theme_case_insensitive():
    assert resolveTheme("FINANCE") == THEME_PRESETS["finance"]


def test_general_theme_equals_defaults():
    assert resolveStyle(None, "general") == DEFAULT_STYLE


def test_theme_applies_preset_over_defaults():
    result = resolveStyle(None, "legal")
    # legal preset changes the primary font to a serif and justifies body text
    assert result["fonts"]["primary"] == "Times New Roman"
    assert result["paragraph"]["align"] == "justify"
    # untouched keys still come from DEFAULT_STYLE
    assert result["page"]["format"] == DEFAULT_STYLE["page"]["format"]


def test_explicit_style_overrides_theme():
    # theme sets finance green; explicit style must win
    result = resolveStyle({"colors": {"primary": "#FF0000"}}, "finance")
    assert result["colors"]["primary"] == "#FF0000"
    # non-overridden theme key still applies
    assert result["table"]["headerBg"] == THEME_PRESETS["finance"]["table"]["headerBg"]


def test_marketing_theme_enlarges_title_and_images():
    result = resolveStyle(None, "marketing")
    assert result["documentTitle"]["sizePt"] == 34
    assert result["image"]["defaultWidthPt"] == 540


def test_unknown_theme_falls_back_to_defaults():
    assert resolveStyle(None, "rainbow") == DEFAULT_STYLE