"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
            return ar;
        };
        return ownKeys(o);
    };
    return function (mod) {
        if (mod && mod.__esModule) return mod;
        var result = {};
        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
        __setModuleDefault(result, mod);
        return result;
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
const ts = __importStar(require("typescript"));
function maxControlFlowNesting(source) {
    const sourceFile = ts.createSourceFile('test.ts', source, ts.ScriptTarget.Latest, true);
    let maxDepth = 0;
    const isControlFlow = (n) => ts.isIfStatement(n) ||
        ts.isForStatement(n) ||
        ts.isForInStatement(n) ||
        ts.isForOfStatement(n) ||
        ts.isWhileStatement(n) ||
        ts.isDoStatement(n) ||
        ts.isSwitchStatement(n) ||
        ts.isTryStatement(n) ||
        ts.isConditionalExpression(n);
    function visit(node, depth) {
        if (isControlFlow(node)) {
            maxDepth = Math.max(maxDepth, depth);
            ts.forEachChild(node, (child) => visit(child, depth + 1));
        }
        else {
            ts.forEachChild(node, (child) => visit(child, depth));
        }
    }
    visit(sourceFile, 1);
    return maxDepth;
}
describe('Control-flow nesting depth (Unit 1.3.3)', () => {
    test('flat code has depth 0', () => {
        const code = `
      function foo() {
        return 1 + 2;
      }
    `;
        expect(maxControlFlowNesting(code)).toBe(0);
    });
    test('single if is depth 1', () => {
        const code = `
      function foo(x: number) {
        if (x > 0) {
          return x;
        }
      }
    `;
        expect(maxControlFlowNesting(code)).toBe(1);
    });
    test('nested if-if is depth 2', () => {
        const code = `
      function foo(a: boolean, b: boolean) {
        if (a) {
          if (b) {
            return 1;
          }
        }
      }
    `;
        expect(maxControlFlowNesting(code)).toBe(2);
    });
    test('mixed control flow: for inside if inside while = depth 3', () => {
        const code = `
      function foo(a: boolean) {
        while (a) {
          if (a) {
            for (let i = 0; i < 10; i++) {
              console.log(i);
            }
          }
        }
      }
    `;
        expect(maxControlFlowNesting(code)).toBe(3);
    });
    test('object literal with chained calls does NOT inflate depth', () => {
        const code = `
      const x = a.b.c.d.e.f.g.h.i.j.k();
    `;
        expect(maxControlFlowNesting(code)).toBe(0);
    });
});
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