git init

app/Services/CsvReader.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Services;
+
+class CsvReader {
+    private $file;
+    private array $headers;
+
+    public array $lines = [];
+
+    public function __construct(
+        public string $filename,
+    )
+    {
+        $this->file = fopen(public_path($filename), "r");
+        if (!$this->file) {
+            throw new \RuntimeException("Failed to open file: " . $filename);
+        }
+
+        $this->headers = $this->readNextLine();
+    }
+
+    public function readNextLine(): ?array
+    {
+        if (($data = fgetcsv($this->file, 1000, ",")) !== FALSE) {
+            return $data;
+        }
+        return null; // End of file or error
+    }
+}

app/Services/DataSetReader.php

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+<?php
+
+namespace App\Services;
+
+class DataSetReader {
+    public array $lines = [];
+    private array $currentLines = [];
+
+    private int $lastReadLineIndex = -1;
+
+    public function __construct(
+        public string $filename,
+    ) {
+        // For now, we only support CSV files, so we can delegate to CsvReader
+        $csvReader = new CsvReader($filename);
+        $this->readEntireFile($csvReader);
+        $this->reset();
+    }
+
+    private function readEntireFile(CsvReader $reader): void
+    {
+        while ($line = $reader->readNextLine()) {
+            $this->lines[] = $line;
+        }
+    }
+
+    public function getRandomLine(): array | null
+    {
+        if (empty($this->currentLines)) {
+            return null; // No more lines to read
+        }
+        $randomNumber = array_rand($this->currentLines);
+        $randomLine = $this->currentLines[$randomNumber];
+        // Remove the line from the current lines to avoid repetition
+        unset($this->currentLines[$randomNumber]);
+        $this->lastReadLineIndex = array_search($randomLine, $this->lines, true);
+        return $randomLine;
+    }
+
+    public function reset(): void
+    {
+        $this->currentLines = $this->lines;
+    }
+
+    public function getLastReadLineIndex(): int
+    {
+        return $this->lastReadLineIndex;
+    }
+}

app/Services/ISynapticWeights.php

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+<?php
+
+namespace App\Services;
+
+interface ISynapticWeights {
+    public function generate(int $input_size): array;
+}

app/Services/RandomSynapticWeights.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Services;
+
+class RandomSynapticWeights implements ISynapticWeights {
+    public function generate(int $input_size): array
+    {
+        $weights = [];
+        for ($i = 0; $i < $input_size + 1; $i++) { // +1 for bias weight
+            $weights[] = rand(-100, 100) / 100; // Random weights between -1 and 1
+        }
+        return $weights;
+    }
+}