// Copyright (C) 2024 Rubén Beltrán del Río

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program. If not, see https://map.tranquil.systems.
import SwiftUI

struct Stage: Codable {
  var i: String
  var ii: String
  var iii: String
  var iv: String

  static func stages(_ type: StageType) -> Stage {
    switch type {
    case .general:
      return Stage(
        i: String(localized: "stage_type.general.stage_i"),
        ii: String(localized: "stage_type.general.stage_ii"),
        iii: String(localized: "stage_type.general.stage_iii"),
        iv: String(localized: "stage_type.general.stage_iv"))
    case .practice:
      return Stage(
        i: String(localized: "stage_type.practice.stage_i"),
        ii: String(localized: "stage_type.practice.stage_ii"),
        iii: String(localized: "stage_type.practice.stage_iii"),
        iv: String(localized: "stage_type.practice.stage_iv"))
    case .data:
      return Stage(
        i: String(localized: "stage_type.data.stage_i"),
        ii: String(localized: "stage_type.data.stage_ii"),
        iii: String(localized: "stage_type.data.stage_iii"),
        iv: String(localized: "stage_type.data.stage_iv"))
    case .knowledge:
      return Stage(
        i: String(localized: "stage_type.knowledge.stage_i"),
        ii: String(localized: "stage_type.knowledge.stage_ii"),
        iii: String(localized: "stage_type.knowledge.stage_iii"),
        iv: String(localized: "stage_type.knowledge.stage_iv"))
    case .ubiquity:
      return Stage(
        i: String(localized: "stage_type.ubiquity.stage_i"),
        ii: String(localized: "stage_type.ubiquity.stage_ii"),
        iii: String(localized: "stage_type.ubiquity.stage_iii"),
        iv: String(localized: "stage_type.ubiquity.stage_iv"))
    case .certainty:
      return Stage(
        i: String(localized: "stage_type.certainty.stage_i"),
        ii: String(localized: "stage_type.certainty.stage_ii"),
        iii: String(localized: "stage_type.certainty.stage_iii"),
        iv: String(localized: "stage_type.certainty.stage_iv"))
    case .publicationTypes:
      return Stage(
        i:
          String(localized: "stage_type.publication_types.stage_i"),
        ii:
          String(localized: "stage_type.publication_types.stage_ii"),
        iii:
          String(localized: "stage_type.publication_types.stage_iii"),
        iv: String(localized: "stage_type.publication_types.stage_iv"))
    case .market:
      return Stage(
        i: String(localized: "stage_type.market.stage_i"),
        ii: String(localized: "stage_type.market.stage_ii"),
        iii: String(localized: "stage_type.market.stage_iii"),
        iv: String(localized: "stage_type.market.stage_iv"))
    case .knowledgeManagement:
      return Stage(
        i: String(localized: "stage_type.knowledge_management.stage_i"),
        ii: String(localized: "stage_type.knowledge_management.stage_ii"),
        iii: String(localized: "stage_type.knowledge_management.stage_iii"),
        iv: String(localized: "stage_type.knowledge_management.stage_iv"))
    case .marketPerception:
      return Stage(
        i: String(localized: "stage_type.market_perception.stage_i"),
        ii: String(localized: "stage_type.market_perception.stage_ii"),
        iii: String(localized: "stage_type.market_perception.stage_iii"),
        iv: String(localized: "stage_type.market_perception.stage_iv"))
    case .userPerception:
      return Stage(
        i: String(localized: "stage_type.user_perception.stage_i"),
        ii: String(localized: "stage_type.user_perception.stage_ii"),
        iii: String(localized: "stage_type.user_perception.stage_iii"),
        iv: String(localized: "stage_type.user_perception.stage_iv"))
    case .perceptionInIndustry:
      return Stage(
        i: String(localized: "stage_type.perception_in_industry.stage_i"),
        ii: String(localized: "stage_type.perception_in_industry.stage_ii"),
        iii: String(localized: "stage_type.perception_in_industry.stage_iii"),
        iv: String(localized: "stage_type.perception_in_industry.stage_iv"))
    case .focusOfValue:
      return Stage(
        i: String(localized: "stage_type.focus_of_value.stage_i"),
        ii: String(localized: "stage_type.focus_of_value.stage_ii"),
        iii:
          String(localized: "stage_type.focus_of_value.stage_iii"),
        iv:
          String(localized: "stage_type.focus_of_value.stage_iv")
      )
    case .understanding:
      return Stage(
        i: String(localized: "stage_type.understanding.stage_i"),
        ii: String(localized: "stage_type.understanding.stage_ii"),
        iii: String(localized: "stage_type.understanding.stage_iii"),
        iv: String(localized: "stage_type.understanding.stage_iv"))
    case .comparison:
      return Stage(
        i: String(localized: "stage_type.comparison.stage_i"),
        ii: String(localized: "stage_type.comparison.stage_ii"),
        iii: String(localized: "stage_type.comparison.stage_iii"),
        iv: String(localized: "stage_type.comparison.stage_iv"))
    case .failure:
      return Stage(
        i: String(localized: "stage_type.failure.stage_i"),
        ii: String(localized: "stage_type.failure.stage_ii"),
        iii:
          String(localized: "stage_type.failure.stage_iii"),
        iv: String(localized: "stage_type.failure.stage_iv"))
    case .marketAction:
      return Stage(
        i: String(localized: "stage_type.market_action.stage_i"),
        ii: String(localized: "stage_type.market_action.stage_ii"),
        iii: String(localized: "stage_type.market_action.stage_iii"),
        iv: String(localized: "stage_type.market_action.stage_iv"))
    case .efficiency:
      return Stage(
        i: String(localized: "stage_type.efficiency.stage_i"),
        ii: String(localized: "stage_type.efficiency.stage_ii"),
        iii: String(localized: "stage_type.efficiency.stage_iii"),
        iv: String(localized: "stage_type.efficiency.stage_iv"))
    case .decisionDrivers:
      return Stage(
        i: String(localized: "stage_type.decision_drivers.stage_i"),
        ii: String(localized: "stage_type.decision_drivers.stage_ii"),
        iii: String(localized: "stage_type.decision_drivers.stage_iii"),
        iv: String(localized: "stage_type.decision_drivers.stage_iv"))
    case .behavior:
      return Stage(
        i: String(localized: "stage_type.behavior.stage_i"),
        ii: String(localized: "stage_type.behavior.stage_ii"),
        iii: String(localized: "stage_type.behavior.stage_iii"),
        iv: String(localized: "stage_type.behavior.stage_iv"))
    case .custom(let uuid):
      if let customStagesData = UserDefaults.standard.data(forKey: "customStages"),
        let customStagesList = try? JSONDecoder().decode(
          [CustomStage].self, from: customStagesData),
        let customStage = customStagesList.first(where: { $0.id == uuid }) {
        return customStage.stage
      }
      return stages(.behavior)  // fallback
    }
  }

  static func title(_ type: StageType) -> String {
    switch type {
    case .general:
      return String(localized: "stage_type.general")
    case .practice:
      return String(localized: "stage_type.practice")
    case .data:
      return String(localized: "stage_type.data")
    case .knowledge:
      return String(localized: "stage_type.knowledge")
    case .ubiquity:
      return String(localized: "stage_type.ubiquity")
    case .certainty:
      return String(localized: "stage_type.certainty")
    case .publicationTypes:
      return String(localized: "stage_type.publication_types")
    case .market:
      return String(localized: "stage_type.market")
    case .knowledgeManagement:
      return String(localized: "stage_type.knowledge_management")
    case .marketPerception:
      return String(localized: "stage_type.market_perception")
    case .userPerception:
      return String(localized: "stage_type.user_perception")
    case .perceptionInIndustry:
      return String(localized: "stage_type.perception_in_industry")
    case .focusOfValue:
      return String(localized: "stage_type.focus_of_value")
    case .understanding:
      return String(localized: "stage_type.understanding")
    case .comparison:
      return String(localized: "stage_type.comparison")
    case .failure:
      return String(localized: "stage_type.failure")
    case .marketAction:
      return String(localized: "stage_type.market_action")
    case .efficiency:
      return String(localized: "stage_type.efficiency")
    case .decisionDrivers:
      return String(localized: "stage_type.decision_drivers")
    case .behavior:
      return String(localized: "stage_type.behavior")
    case .custom(let uuid):
      if let customStagesData = UserDefaults.standard.data(forKey: "customStages"),
        let customStagesList = try? JSONDecoder().decode(
          [CustomStage].self, from: customStagesData),
        let customStage = customStagesList.first(where: { $0.id == uuid }) {
        return customStage.name
      }
      return String(localized: "stage_type.behavior")  // fallback
    }
  }
}

enum StageType: Identifiable, Equatable {
  case general
  case practice
  case data
  case knowledge

  case ubiquity
  case certainty
  case publicationTypes

  case market
  case knowledgeManagement
  case marketPerception
  case userPerception
  case perceptionInIndustry
  case focusOfValue
  case understanding
  case comparison
  case failure
  case marketAction
  case efficiency
  case decisionDrivers

  case behavior
  case custom(UUID)

  var id: String {
    switch self {
    case .general: return "general"
    case .practice: return "practice"
    case .data: return "data"
    case .knowledge: return "knowledge"
    case .ubiquity: return "ubiquity"
    case .certainty: return "certainty"
    case .publicationTypes: return "publicationTypes"
    case .market: return "market"
    case .knowledgeManagement: return "knowledgeManagement"
    case .marketPerception: return "marketPerception"
    case .userPerception: return "userPerception"
    case .perceptionInIndustry: return "perceptionInIndustry"
    case .focusOfValue: return "focusOfValue"
    case .understanding: return "understanding"
    case .comparison: return "comparison"
    case .failure: return "failure"
    case .marketAction: return "marketAction"
    case .efficiency: return "efficiency"
    case .decisionDrivers: return "decisionDrivers"
    case .behavior: return "behavior"
    case .custom(let uuid): return uuid.uuidString.lowercased()
    }
  }

  static let types: [StageType] = [.general, .practice, .data, .knowledge]
  static let characteristics: [StageType] = [.ubiquity, .certainty, .publicationTypes]
  static let properties: [StageType] = [
    .market, .knowledgeManagement, .marketPerception, .userPerception,
    .perceptionInIndustry, .focusOfValue, .understanding, .comparison, .failure,
    .marketAction, .efficiency, .decisionDrivers
  ]

  static var customStages: [StageType] {
    if let customStagesData = UserDefaults.standard.data(forKey: "customStages"),
      let customStagesList = try? JSONDecoder().decode([CustomStage].self, from: customStagesData) {
      return customStagesList.map { .custom($0.id) }
    }
    return []
  }
}