//
// StringToNumber.ts
// Converts a String to a Number(Float)
// Written by @Fusedthreed – https://FusedThreeD.com
//

@customNode()
export class CustomNodeTS extends BasicScriptNode {
  @input()
  input: string;

  @output()
  result: number;

  @output()
  error: boolean;

  execute() {
    if (!this.input || this.input.length === 0) {
      this.error = true;
      return;
    }

    let isValid = true;
    let hasDot = false;

    for (let i = 0; i < this.input.length; i++) {
      const char = this.input[i];

      if (char === ".") {
        if (hasDot) {
          isValid = false; // multiple dots
          break;
        }
        hasDot = true;
      } else if (char === "-" && i !== 0) {
        isValid = false; // minus sign not at start
        break;
      } else if (!"0123456789".includes(char) && char !== "." && char !== "-") {
        isValid = false; // invalid character
        break;
      }
    }

    if (!isValid) {
      this.error = true;
      return;
    }

    const num = parseFloat(this.input);

    if (isNaN(num)) {
      this.error = true;
      return;
    }

    this.result = num;
    this.error = false;
  }
}