const mongoose = require('mongoose');

const blogPostSchema = new mongoose.Schema(
  {
    title: { type: String, required: true },
    slug: { type: String, required: true, lowercase: true },
    body: { type: String, required: true },
    author: { type: mongoose.Schema.Types.ObjectId, ref: 'Admin', required: true },
    category: { type: String },
    tags: [{ type: String }],
    featuredImage: { type: String },
    publishDate: { type: Date },
    status: {
      type: String,
      enum: ['draft', 'published', 'scheduled', 'archived'],
      default: 'draft',
    },

    // SEO
    metaTitle: { type: String },
    metaDescription: { type: String },

    // Related
    relatedArticles: [{ type: mongoose.Schema.Types.ObjectId, ref: 'BlogPost' }],
  },
  { timestamps: true }
);

blogPostSchema.index({ slug: 1 });
blogPostSchema.index({ status: 1, publishDate: -1 });
blogPostSchema.index({ category: 1, tags: 1 });

module.exports = mongoose.model('BlogPost', blogPostSchema);