export class DummyLlmService {
  async query(prompt) {
    const intents = {
      analyze: { confidence: 0.9, action: 'analysis' },
      process: { confidence: 0.8, action: 'processing' },
      transform: { confidence: 0.7, action: 'transformation' },
      validate: { confidence: 0.85, action: 'validation' },
      clean: { confidence: 0.85, action: 'cleaning' },
    };
    const matchedIntent = Object.entries(intents).find(([key]) =>
        prompt.toLowerCase().includes(key)
    );
    return matchedIntent ? matchedIntent[1] : { confidence: 0.1, action: 'unknown' };
  }
}

export class WorkflowOperator {
  constructor(name, operation) {
    this.name = name;
    this.operation = operation;
  }

  async execute(state) {
    return await this.operation(state);
  }
}

export class ManifoldRegion {
  constructor(name, operators = []) {
    this.name = name;
    this.operators = operators;
    this.adjacentRegions = new Set();
  }

  addOperator(operator) {
    this.operators.push(operator);
  }

  connectTo(region) {
    this.adjacentRegions.add(region);
    region.adjacentRegions.add(this);
  }

  async getValidOperators(_state) {
    return this.operators;
  }
}

export class NestedManifoldRegion extends ManifoldRegion {
  constructor(name, nestedManifold) {
    super(name);
    this.nestedManifold = nestedManifold;
  }

  async getValidOperators(state) {
    if (!this.nestedManifold.currentRegion) {
      return [];
    }
    return await this.nestedManifold.currentRegion.getValidOperators(state);
  }

  async navigate(prompt) {
    return await this.nestedManifold.navigate(prompt);
  }

  async executeWorkflow(prompt) {
    const result = await this.nestedManifold.executeWorkflow(prompt);
    return result;
  }
}

export class WorkflowFunctionManifold {
  constructor(llmService) {
    this.llmService = llmService;
    this.regions = new Map();
    this.currentRegion = null;
    this.state = {};
  }

  addRegion(region) {
    this.regions.set(region.name, region);
    if (!this.currentRegion) {
      this.currentRegion = region;
    }
  }

  async navigate(prompt) {
    try {
      // If current region is nested, try to navigate within it first
      if (this.currentRegion instanceof NestedManifoldRegion) {
        const nestedNavigated = await this.currentRegion.navigate(prompt);
        if (nestedNavigated) {
          return true;
        }
      }

      const intent = await this.llmService.query(prompt);
      if (intent.confidence <= 0.5) {
        return false;
      }

      // Try to find matching region
      const nextRegion = Array.from(this.currentRegion.adjacentRegions).find(region =>
          region.name.toLowerCase().includes(intent.action)
      );

      if (nextRegion) {
        this.currentRegion = nextRegion;
        return true;
      }

      return false;
    } catch (error) {
      console.error('Navigation error:', error);
      return false;
    }
  }

  async executeWorkflow(prompt) {
    try {
      if (this.currentRegion instanceof NestedManifoldRegion) {
        const nestedResult = await this.currentRegion.executeWorkflow(prompt);
        return nestedResult;
      }

      const intent = await this.llmService.query(prompt);
      const operators = await this.currentRegion.getValidOperators(this.state);

      const matchedOperator = operators.find(op =>
          op.name.toLowerCase().includes(intent.action)
      );

      if (matchedOperator && intent.confidence > 0.5) {
        this.state = await matchedOperator.execute(this.state);
        return true;
      }

      return false;
    } catch (error) {
      console.error('Execution error:', error);
      return false;
    }
  }
}