//
//  ReadingPreferencesTests.swift
//  RSSuperTests
//
//  Created by Mike Freno on 3/29/26.
//

import XCTest
@testable import RSSuper

final class ReadingPreferencesTests: XCTestCase {
    
    func testReadingPreferencesEncodingDecoding() throws {
        let prefs = ReadingPreferences(
            fontSize: .large,
            lineHeight: .loose,
            showTableOfContents: true,
            showReadingTime: false,
            showAuthor: true,
            showDate: false
        )
        
        let data = try JSONEncoder().encode(prefs)
        let decoded = try JSONDecoder().decode(ReadingPreferences.self, from: data)
        
        XCTAssertEqual(decoded.fontSize, prefs.fontSize)
        XCTAssertEqual(decoded.lineHeight, prefs.lineHeight)
        XCTAssertEqual(decoded.showTableOfContents, prefs.showTableOfContents)
        XCTAssertEqual(decoded.showReadingTime, prefs.showReadingTime)
        XCTAssertEqual(decoded.showAuthor, prefs.showAuthor)
        XCTAssertEqual(decoded.showDate, prefs.showDate)
    }
    
    func testReadingPreferencesDefaults() {
        let prefs = ReadingPreferences()
        
        XCTAssertEqual(prefs.fontSize, .medium)
        XCTAssertEqual(prefs.lineHeight, .relaxed)
        XCTAssertEqual(prefs.showTableOfContents, false)
        XCTAssertEqual(prefs.showReadingTime, true)
        XCTAssertEqual(prefs.showAuthor, true)
        XCTAssertEqual(prefs.showDate, true)
    }
    
    func testFontSizePointValue() {
        XCTAssertEqual(ReadingPreferences.FontSize.small.pointValue, 14)
        XCTAssertEqual(ReadingPreferences.FontSize.medium.pointValue, 16)
        XCTAssertEqual(ReadingPreferences.FontSize.large.pointValue, 18)
        XCTAssertEqual(ReadingPreferences.FontSize.xlarge.pointValue, 20)
    }
    
    func testLineHeightMultiplier() {
        XCTAssertEqual(ReadingPreferences.LineHeight.normal.multiplier, 1.2)
        XCTAssertEqual(ReadingPreferences.LineHeight.relaxed.multiplier, 1.5)
        XCTAssertEqual(ReadingPreferences.LineHeight.loose.multiplier, 1.8)
    }
    
    func testReadingPreferencesEquality() {
        let prefs1 = ReadingPreferences(fontSize: .large, lineHeight: .loose)
        let prefs2 = ReadingPreferences(fontSize: .large, lineHeight: .loose)
        let prefs3 = ReadingPreferences(fontSize: .medium, lineHeight: .normal)
        
        XCTAssertEqual(prefs1, prefs2)
        XCTAssertNotEqual(prefs1, prefs3)
    }
    
    func testReadingPreferencesDebugDescription() {
        let prefs = ReadingPreferences(
            fontSize: .xlarge,
            lineHeight: .normal,
            showTableOfContents: true
        )
        
        let debugDesc = prefs.debugDescription
        XCTAssertTrue(debugDesc.contains("xlarge"))
        XCTAssertTrue(debugDesc.contains("normal"))
        XCTAssertTrue(debugDesc.contains("true"))
    }
}