// db/init.js
const db = require('./knex');

/* ============================================================
   FOTO
   ============================================================ */
async function ensurePhotos() {
  const exists = await db.schema.hasTable('photos');
  if (!exists) {
    await db.schema.createTable('photos', (t) => {
      t.string('id').primary();
      t.string('user');
      t.string('cartella');
      t.string('name');
      t.string('path');
      t.string('thub1');
      t.string('thub2');
      t.string('mime_type');
      t.integer('width');
      t.integer('height');
      t.integer('rotation');
      t.integer('size_bytes');
      t.integer('mtimeMs');
      t.integer('duration_ms');
      t.string('taken_at');
      t.string('data');
      t.float('lat');
      t.float('lon');
      t.float('alt');
      t.text('location');
      t.string('_indexHash');
      t.string('fast_hash');
      t.datetime('created_at').defaultTo(db.fn.now());
      t.datetime('updated_at').defaultTo(db.fn.now());
      t.datetime('deleted_at').nullable();
    });
    console.log("✔ photos creata");
  } else {
    const cols = [
      'thub1','thub2','fast_hash','created_at','updated_at','deleted_at'
    ];
    for (const col of cols) {
      const existsCol = await db.schema.hasColumn('photos', col);
      if (!existsCol) {
        await db.schema.alterTable('photos', (t) => {
          if (col === 'created_at' || col === 'updated_at')
            t.datetime(col).defaultTo(db.fn.now());
          else if (col === 'deleted_at')
            t.datetime(col).nullable();
          else
            t.string(col);
        });
        console.log(`✔ aggiunta colonna photos.${col}`);
      }
    }
  }
}

/* ============================================================
   FOTO — deleted_hard
   ============================================================ */
async function ensureDeletedHard() {
  const exists = await db.schema.hasTable('deleted_hard');
  if (!exists) {
    await db.schema.createTable('deleted_hard', (t) => {
      t.string('id').primary();
      t.string('user');
      t.datetime('deleted_at').defaultTo(db.fn.now());
    });
    console.log("✔ deleted_hard creata");
  }
}

/* ============================================================
   WS
   ============================================================ */
async function ensureWsSessions() {
  const exists = await db.schema.hasTable('ws_sessions');
  if (!exists) {
    await db.schema.createTable('ws_sessions', (t) => {
      t.string('session_id').notNullable();
      t.string('device_id').notNullable();
      t.string('user').notNullable();
      t.integer('connected_at').notNullable();
      t.integer('last_ack').notNullable();
      t.integer('last_sync').nullable();
      t.boolean('need_full_sync').notNullable().defaultTo(false);

      t.primary(['session_id', 'device_id']);
    });
    console.log("✔ ws_sessions creata");
  } else {
    const cols = [
      { name: 'device_id', type: 'string' },
      { name: 'last_sync', type: 'integer' }
    ];

    for (const c of cols) {
      const existsCol = await db.schema.hasColumn('ws_sessions', c.name);
      if (!existsCol) {
        await db.schema.alterTable('ws_sessions', (t) => {
          if (c.type === 'string') t.string(c.name).notNullable().defaultTo('default');
          if (c.type === 'integer') t.integer(c.name).nullable();
        });
        console.log(`✔ aggiunta colonna ws_sessions.${c.name}`);
      }
    }
  }
}

async function ensureWsPending() {
  const exists = await db.schema.hasTable('ws_pending_events');
  if (!exists) {
    await db.schema.createTable('ws_pending_events', (t) => {
      t.string('event_id').primary();
      t.string('session_id').notNullable();
      t.text('payload').notNullable();
      t.integer('sent_at').notNullable();
      t.integer('retries').notNullable().defaultTo(0);
    });
    console.log("✔ ws_pending_events creata");
  }
}

async function ensurePendingEvents() {
  const exists = await db.schema.hasTable('pending_events');
  if (!exists) {
    await db.schema.createTable('pending_events', (t) => {
      t.increments('id').primary();
      t.string('user_id').notNullable();
      t.string('session_id').notNullable();
      t.string('device_id').notNullable();
      t.string('event_id').notNullable();
      t.text('payload').notNullable();
      t.integer('created_at').notNullable();

      t.unique(['user_id', 'session_id', 'device_id', 'event_id']);
    });
    console.log("✔ pending_events creata");
  }
}

/* ============================================================
   🏃 ATTIVITÀ — nuova tabella
   ============================================================ */
async function ensureActivities() {
  const exists = await db.schema.hasTable('activities');
  if (!exists) {
    await db.schema.createTable('activities', (t) => {
      t.string('id').primary();
      t.string('user');
      t.string('cartella');

      t.string('file_name');
      t.string('file_extension');
      t.string('format');
      t.string('display_name');
      t.string('route_name');
      t.string('title');
      t.string('description');
      t.string('notes');
      t.string('sport');
      t.string('activity_type');
      t.string('device_manufacturer');
      t.string('device_model');
      t.string('source_app');

      t.bigInteger('start_time_millis');
      t.bigInteger('end_time_millis');
      t.bigInteger('duration_millis');

      t.float('distance_meters');
      t.float('elevation_gain_meters');
      t.float('elevation_loss_meters');

      t.float('min_elevation_meters');
      t.float('max_elevation_meters');

      t.float('file_distance_meters');
      t.float('file_elevation_gain_meters');

      t.float('computed_distance_meters');
      t.float('computed_elevation_gain_meters');

      t.float('average_speed_mps');
      t.float('max_speed_mps');
      t.float('average_pace_sec_per_km');

      t.integer('average_heart_rate');
      t.integer('max_heart_rate');
      t.integer('average_cadence');
      t.integer('max_cadence');

      t.integer('calories');
      t.integer('power_avg');
      t.integer('power_max');

      t.integer('point_count');
      t.integer('segment_count');
      t.integer('lap_count');

      t.float('min_latitude');
      t.float('max_latitude');
      t.float('min_longitude');
      t.float('max_longitude');
      t.float('center_latitude');
      t.float('center_longitude');

      t.bigInteger('size_bytes');
      t.bigInteger('last_modified_millis');
      t.bigInteger('date_added_millis');
      t.bigInteger('date_modified_millis');
      t.bigInteger('last_scan_millis');

      t.boolean('is_favorite');
      t.boolean('is_hidden');
      t.integer('rating');

      t.text('tags');
      t.text('track_preview');
      t.string('scan_status');
      t.text('scan_error');
      t.string('path');
      t.text('diagnostics');
      t.text('location');
      t.string('fast_hash');
      t.datetime('deleted_at').nullable();
      t.datetime('created_at').defaultTo(db.fn.now());
      t.datetime('updated_at').defaultTo(db.fn.now());
    });
    console.log("✔ activities creata");
  }
}

/* ============================================================
   ATTIVITÀ — deleted_hard
   ============================================================ */
async function ensureDeletedHardActivities() {
  const exists = await db.schema.hasTable('deleted_hard_activities');
  if (!exists) {
    await db.schema.createTable('deleted_hard_activities', (t) => {
      t.string('id').primary();
      t.string('user');
      t.datetime('deleted_at').defaultTo(db.fn.now());
    });
    console.log("✔ deleted_hard_activities creata");
  }
}

/* ============================================================
   ATTIVITÀ — sync_done
   ============================================================ */
async function ensureSyncDoneActivities() {
  const exists = await db.schema.hasTable('sync_done_activities');
  if (!exists) {
    await db.schema.createTable('sync_done_activities', (t) => {
      t.string('session_id');
      t.string('device_id');
      t.bigInteger('last_sync');
    });
    console.log("✔ sync_done_activities creata");
  }
}

/* ============================================================
   INIT
   ============================================================ */
async function init() {
  try {
    console.log("🔧 init DB...");
    await ensurePhotos();
    await ensureDeletedHard();

    await ensureActivities();
    await ensureDeletedHardActivities();
    await ensureSyncDoneActivities();

    await ensureWsSessions();
    await ensureWsPending();
    await ensurePendingEvents();

    console.log("✅ init completato");
    process.exit(0);
  } catch (err) {
    console.error("❌ errore init:", err);
    process.exit(1);
  }
}

init();