import Foundation

protocol HeaderTemplate {

    func generate(_ content: [ThumbnailKey : String], shouldIndent: Bool) throws -> String
}

enum HeaderKey: String, CaseIterable {
    case backLink = "BACK_LINK"
    case title = "TITLE"
    case subtitle = "SUBTITLE"
    case titleText = "TITLE_TEXT"
    case date = "DATE"
}

struct CenteredHeaderTemplate: Template {

    typealias Key = HeaderKey

    let raw: String

    static let templateName = "header-center.html"
}

struct LeftHeaderTemplate: Template {

    typealias Key = HeaderKey

    let raw: String

    static let templateName = "header-left.html"
}