import Foundation

public struct RDEPUBSearchMatch: Codable, Equatable {

    public var href: String

    public var progression: Double

    public var previewText: String

    public var localMatchIndex: Int

    public var rangeLocation: Int?

    public var rangeLength: Int

    public var rangeAnchor: RDEPUBTextRangeAnchor?

    public var cfi: String?

    public var rangeCFI: String?

    public init(
        href: String,
        progression: Double,
        previewText: String,
        localMatchIndex: Int,
        rangeLocation: Int? = nil,
        rangeLength: Int,
        rangeAnchor: RDEPUBTextRangeAnchor? = nil,
        cfi: String? = nil,
        rangeCFI: String? = nil
    ) {
        self.href = href
        self.progression = progression
        self.previewText = previewText
        self.localMatchIndex = localMatchIndex
        self.rangeLocation = rangeLocation
        self.rangeLength = rangeLength
        self.rangeAnchor = rangeAnchor
        self.cfi = cfi
        self.rangeCFI = rangeCFI
    }
}

public struct RDEPUBSearchResult: Codable, Equatable {

    public var keyword: String

    public var totalMatchCount: Int

    public var currentMatchIndex: Int?

    public var currentMatch: RDEPUBSearchMatch?

    public init(
        keyword: String,
        totalMatchCount: Int,
        currentMatchIndex: Int?,
        currentMatch: RDEPUBSearchMatch?
    ) {
        self.keyword = keyword
        self.totalMatchCount = totalMatchCount
        self.currentMatchIndex = currentMatchIndex
        self.currentMatch = currentMatch
    }
}

public struct RDEPUBSearchState: Codable, Equatable {

    public var keyword: String

    public var matches: [RDEPUBSearchMatch]

    public var currentMatchIndex: Int?

    public init(keyword: String, matches: [RDEPUBSearchMatch], currentMatchIndex: Int? = nil) {
        self.keyword = keyword
        self.matches = matches
        self.currentMatchIndex = currentMatchIndex
    }

    public var currentMatch: RDEPUBSearchMatch? {
        guard let currentMatchIndex,
              matches.indices.contains(currentMatchIndex) else {
            return nil
        }
        return matches[currentMatchIndex]
    }

    public var result: RDEPUBSearchResult {
        RDEPUBSearchResult(
            keyword: keyword,
            totalMatchCount: matches.count,
            currentMatchIndex: currentMatchIndex.map { $0 + 1 },
            currentMatch: currentMatch
        )
    }
}

public struct RDEPUBSearchPresentationResource: Codable, Equatable {

    public var href: String

    public var matchCount: Int

    public var activeLocalMatchIndex: Int?

    public init(href: String, matchCount: Int, activeLocalMatchIndex: Int? = nil) {
        self.href = href
        self.matchCount = matchCount
        self.activeLocalMatchIndex = activeLocalMatchIndex
    }
}

public struct RDEPUBSearchPresentation: Codable, Equatable {

    public var keyword: String

    public var resources: [RDEPUBSearchPresentationResource]

    public init(keyword: String, resources: [RDEPUBSearchPresentationResource]) {
        self.keyword = keyword
        self.resources = resources
    }
}