const { app, BrowserWindow, ipcMain } = require('electron');
const path = require('path');
const sqlite3 = require('sqlite3').verbose();

app.commandLine.appendSwitch('remote-debugging-port', '9222');

let mainWindow;
let db;

function createWindow() {
  mainWindow = new BrowserWindow({
    width: 1200,
    height: 800,
    webPreferences: {
      nodeIntegration: true,
      contextIsolation: false
    }
  });

  mainWindow.loadFile('index.html');

  db = new sqlite3.Database('../pokemon_forms.db', (err) => {
    if (err) {
      console.error('Database opening error: ', err);
    }
  });
}

app.whenReady().then(createWindow);

app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') {
    app.quit();
  }
});

app.on('activate', () => {
  if (BrowserWindow.getAllWindows().length === 0) {
    createWindow();
  }
});

ipcMain.on('load-forms-data', (event) => {
  db.all(`
    SELECT pf.PFIC, pf.name, pf.form_name, pf.national_dex, pf.generation, ps.storable_in_home
    FROM pokemon_forms pf
    LEFT JOIN pokemon_storage ps ON pf.PFIC = ps.PFIC
  `, (err, rows) => {
    if (err) {
      console.error('Error fetching data: ', err);
      event.reply('forms-data-response', { error: err.message });
    } else {
      event.reply('forms-data-response', { data: rows });
    }
  });
});

ipcMain.on('search-evolution', (event, searchTerm) => {
  db.all(`
    SELECT DISTINCT name, PFIC
    FROM pokemon_forms
    WHERE LOWER(name) LIKE ?
  `, [`%${searchTerm.toLowerCase()}%`], (err, rows) => {
    if (err) {
      console.error('Error searching evolution: ', err);
      event.reply('evolution-search-response', { error: err.message });
    } else {
      event.reply('evolution-search-response', { data: rows });
    }
  });
});

ipcMain.on('get-evolution-chain', (event, pfic) => {
  function getEvolutions(currentPfic) {
    return new Promise((resolve, reject) => {
      db.all(`
        SELECT ec.to_pfic as pfic, pf.name, pf.form_name, ec.method, ec.from_pfic
        FROM evolution_chains ec
        JOIN pokemon_forms pf ON ec.to_pfic = pf.PFIC
        WHERE ec.from_pfic = ?
      `, [currentPfic], (err, rows) => {
        if (err) {
          reject(err);
        } else {
          resolve(rows);
        }
      });
    });
  }

  async function buildChain(pfic) {
    const pokemon = await new Promise((resolve, reject) => {
      db.get(`SELECT PFIC as pfic, name, form_name FROM pokemon_forms WHERE PFIC = ?`, [pfic], (err, row) => {
        if (err) reject(err);
        else resolve(row);
      });
    });

    if (!pokemon) return null;

    const evolutions = await getEvolutions(pfic);
    pokemon.evolutions = await Promise.all(evolutions.map(evo => buildChain(evo.pfic)));

    return pokemon;
  }

  buildChain(pfic)
    .then(chain => {
      event.reply('evolution-chain-response', { data: chain });
    })
    .catch(err => {
      console.error('Error building evolution chain:', err);
      event.reply('evolution-chain-response', { error: err.message });
    });
});

ipcMain.on('edit-pokemon', (event, data) => {
  // Implement the logic to update the Pokémon in the database
  console.log('Editing Pokémon:', data);
  // Update the database and send a response back to the renderer
});

ipcMain.on('remove-pokemon', (event, data) => {
  // Implement the logic to remove the Pokémon from the evolution chain in the database
  console.log('Removing Pokémon:', data);
  // Update the database and send a response back to the renderer
});

ipcMain.on('add-stage', (event, data) => {
  // Implement the logic to add a new stage to the evolution chain in the database
  console.log('Adding new stage:', data);
  // Update the database and send a response back to the renderer
});

ipcMain.on('save-evolution-changes', (event, data) => {
  // Implement the logic to save all changes to the evolution chain in the database
  console.log('Saving evolution changes:', data);
  
  // Here you would update the database with the new evolution chain data
  // This is a placeholder implementation
  setTimeout(() => {
    event.reply('save-evolution-changes-response', { success: true });
  }, 1000);
  
  // If there's an error, you would reply with:
  // event.reply('save-evolution-changes-response', { error: 'Error message' });
});

// Add more IPC handlers for other database operations

// Add this IPC handler
ipcMain.on('load-all-pokemon', (event) => {
  db.all(`
    SELECT PFIC, name, form_name
    FROM pokemon_forms
    ORDER BY 
      CAST(SUBSTR(PFIC, 1, 4) AS INTEGER),  -- National Dex number
      CAST(SUBSTR(PFIC, 6, 2) AS INTEGER),  -- Region code
      CAST(SUBSTR(PFIC, 9, 3) AS INTEGER),  -- Form index
      CAST(SUBSTR(PFIC, 13, 1) AS INTEGER)  -- Gender code
  `, (err, rows) => {
    if (err) {
      console.error('Error fetching all Pokémon:', err);
      event.reply('all-pokemon-response', { error: err.message });
    } else {
      event.reply('all-pokemon-response', { data: rows });
    }
  });
});

ipcMain.on('get-pokemon-details', (event, pfic) => {
    db.get(`
        SELECT pf.PFIC, pf.name, pf.form_name, pf.national_dex, pf.generation, ps.storable_in_home
        FROM pokemon_forms pf
        LEFT JOIN pokemon_storage ps ON pf.PFIC = ps.PFIC
        WHERE pf.PFIC = ?
    `, [pfic], (err, row) => {
        if (err) {
            console.error('Error fetching Pokémon details:', err);
            event.reply('pokemon-details-response', { error: err.message });
        } else {
            event.reply('pokemon-details-response', { data: row });
        }
    });
});

ipcMain.on('update-storable-in-home', (event, data) => {
    db.run(`
        UPDATE pokemon_storage
        SET storable_in_home = ?
        WHERE PFIC = ?
    `, [data.storable ? 1 : 0, data.pfic], (err) => {
        if (err) {
            console.error('Error updating storable in home:', err);
            event.reply('update-storable-in-home-response', { error: err.message });
        } else {
            event.reply('update-storable-in-home-response', { success: true });
        }
    });
});