const mongoose = require('mongoose');

// Sub-schemas for better organization
const programOptionSchema = new mongoose.Schema({
  _comment: String,
  href: String,
  imageSrc: String,
  title: String,
  description: String
}, { _id: false });

const locationSchema = new mongoose.Schema({
  _comment: String,
  id: {
    type: Number,
    required: true
  },
  country: String,
  title: String,
  imageSrc: String,
  imageAlt: String,
  readMoreLink: String,
  imagePosition: {
    type: String,
    enum: ['left', 'right']
  },
  cardSize: {
    type: String,
    enum: ['default', 'large']
  },
  scrollspyClass: String,
  programOptions: [programOptionSchema]
}, { _id: false });

const campMarkerSchema = new mongoose.Schema({
  _comment: String,
  id: {
    type: Number,
    required: true
  },
  lat: {
    type: Number,
    required: false // Changed to false since coordinates are optional
  },
  lng: {
    type: Number,
    required: false // Changed to false since coordinates are optional
  },
  title: {
    type: String,
    required: true
  },
  image: String
}, { _id: false });

const faqItemSchema = new mongoose.Schema({
  _comment: String,
  question: {
    type: String,
    required: true
  },
  answer: {
    type: String,
    required: true
  }
}, { _id: false });

const securityItemSchema = new mongoose.Schema({
  _comment: String,
  title: {
    type: String,
    required: true
  },
  content: {
    type: String,
    required: true
  }
}, { _id: false });

// Map schemas (similar to contact model)
const coordinatesSchema = new mongoose.Schema({
  lat: {
    type: Number,
    required: true
  },
  lng: {
    type: Number,
    required: true
  }
}, { _id: false });

const tileLayerSchema = new mongoose.Schema({
  url: {
    type: String,
    required: true,
    trim: true
  },
  attribution: {
    type: String,
    trim: true,
    default: ''
  },
  maxZoom: {
    type: Number,
    default: 18
  },
  minZoom: {
    type: Number,
    default: 0
  }
}, { _id: false });

const mapSchema = new mongoose.Schema({
  _comment: String,
  coordinates: {
    type: coordinatesSchema,
    required: true
  },
  zoom: {
    type: Number,
    default: 15
  },
  location: {
    type: String,
    required: true,
    trim: true
  },
  markerTitle: {
    type: String,
    trim: true,
    default: ''
  },
  tileLayer: {
    type: tileLayerSchema,
    required: true
  }
}, { _id: false });

// Main schema
const campLocationSchema = new mongoose.Schema({
  metadata: {
    _comment: String,
    title: String,
    description: String
  },
  hero: {
    _comment: String,
    title: String,
    backgroundImage: String,
    overlayColor: String
  },
  camps: [campMarkerSchema],
  locationsSection: {
    _comment: String,
    title: String,
    readMoreButtonText: {
      type: String,
      default: 'read more'
    }
  },
  locations: [locationSchema],
  intro: {
    _comment: String,
    content: String
  },
  map: {
    coordinates: {
      lat: { type: Number, default: 0 },
      lng: { type: Number, default: 0 }
    },
    zoom: { type: Number, default: 5 },
    location: { type: String, default: '' },
    markerTitle: { type: String, default: '' },
    tileLayer: {
      url: { type: String, default: 'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png' },
      attribution: { type: String, default: '' },
      maxZoom: { type: Number, default: 18 },
      minZoom: { type: Number, default: 0 }
    }
  },
  faqSection: {
    _comment: String,
    title: String,
    buttonText: {
      type: String,
      default: 'More questions'
    },
    buttonIcon: {
      type: String,
      default: 'comments'
    },
    buttonLink: {
      type: String,
      default: '/info/faq'
    }
  },
  faq: [faqItemSchema],
  welcomeQuote: {
    _comment: String,
    title: String,
    quote: String,
    author: String
  },
  securityConcept: {
    _comment: String,
    title: String,
    introduction: String,
    items: [securityItemSchema]
  },
  updatedAt: Date
}, {
  timestamps: true
});

// Indexes for better query performance
campLocationSchema.index({ 'camps.id': 1 });
campLocationSchema.index({ 'locations.id': 1 });
campLocationSchema.index({ 'locations.country': 1 });

// Virtual to get camp by ID
campLocationSchema.virtual('getCampById').get(function() {
  return (id) => this.camps.find(camp => camp.id === id);
});

// Virtual to get location by ID
campLocationSchema.virtual('getLocationById').get(function() {
  return (id) => this.locations.find(location => location.id === id);
});

// Method to get locations by country
campLocationSchema.methods.getLocationsByCountry = function(country) {
  return this.locations.filter(location => location.country === country);
};

// Method to get all countries
campLocationSchema.methods.getAllCountries = function() {
  return [...new Set(this.locations.map(location => location.country))];
};

// Static method to get the latest camp location data
campLocationSchema.statics.getLatest = function() {
  return this.findOne().sort({ updatedAt: -1 });
};

module.exports = mongoose.model('CampLocation', campLocationSchema);