/**
 * ESLint rule to forbid Next.js imports in lib/ directory
 * 
 * The lib/ directory should be framework-agnostic.
 * Next.js imports (redirect, cookies, headers, etc.) should only be in app/ directory.
 */

module.exports = {
  meta: {
    type: 'problem',
    docs: {
      description: 'Forbid Next.js imports in lib/ directory',
      category: 'Architecture',
      recommended: true,
    },
    fixable: null,
    schema: [],
    messages: {
      noNextImports: 'Next.js imports are forbidden in lib/ directory. Found: {{import}} from "{{source}}"',
      noNextRedirect: 'redirect() must be used in app/ directory, not lib/ directory',
      noNextCookies: 'cookies() must be used in app/ directory, not lib/ directory',
      noNextHeaders: 'headers() must be used in app/ directory, not lib/ directory',
    },
  },

  create(context) {
    const filename = context.getFilename();
    const isInLib = filename.includes('/lib/');
    
    // Skip if not in lib directory
    if (!isInLib) return {};

    return {
      // Track import statements
      ImportDeclaration(node) {
        const source = node.source.value;
        
        // Check for Next.js imports
        if (source === 'next/navigation' || 
            source === 'next/headers' ||
            source === 'next/cookies' ||
            source === 'next/router' ||
            source === 'next/link' ||
            source === 'next/image' ||
            source === 'next/script' ||
            source === 'next/dynamic') {
          
          // Check for specific named imports
          node.specifiers.forEach(spec => {
            if (spec.type === 'ImportSpecifier') {
              const imported = spec.imported.name;
              
              if (imported === 'redirect') {
                context.report({
                  node: spec,
                  messageId: 'noNextRedirect',
                });
              } else if (imported === 'cookies') {
                context.report({
                  node: spec,
                  messageId: 'noNextCookies',
                });
              } else if (imported === 'headers') {
                context.report({
                  node: spec,
                  messageId: 'noNextHeaders',
                });
              } else {
                context.report({
                  node: spec,
                  messageId: 'noNextImports',
                  data: { import: imported, source },
                });
              }
            } else if (spec.type === 'ImportDefaultSpecifier') {
              context.report({
                node: spec,
                messageId: 'noNextImports',
                data: { import: 'default', source },
              });
            }
          });
        }
      },

      // Also check for require() calls
      CallExpression(node) {
        if (node.callee.type === 'Identifier' && node.callee.name === 'require') {
          if (node.arguments.length > 0 && node.arguments[0].type === 'Literal') {
            const source = node.arguments[0].value;
            
            if (source === 'next/navigation' || 
                source === 'next/headers' ||
                source === 'next/cookies' ||
                source === 'next/router') {
              
              context.report({
                node,
                messageId: 'noNextImports',
                data: { import: 'require()', source },
              });
            }
          }
        }
      },
    };
  },
};