html-ad-generator-mcp/build/validators/content.js

MCP server for generating HTML ad templates from JSON input for Google Ads, Meta Ads, and Moment Science

import { z } from 'zod';
import { AdInputSchema } from '../types/schemas.js';
export function validateAdContent(input) {
    try {
        const parsed = AdInputSchema.parse(input);
        const warnings = {};
        if (parsed.platform === 'google') {
            const googleAd = parsed;
            // Check if both ad types are provided (now required)
            if (!googleAd.searchAd || !googleAd.displayAd) {
                return {
                    valid: false,
                    errors: {
                        content: 'Both searchAd and displayAd must be provided for Google ads'
                    }
                };
            }
            // Warnings for character limits approaching
            if (googleAd.searchAd) {
                googleAd.searchAd.headlines.forEach((headline, i) => {
                    if (headline.length > 25) {
                        warnings[`headlines[${i}]`] = `Approaching character limit (${headline.length}/30)`;
                    }
                });
                googleAd.searchAd.descriptions.forEach((desc, i) => {
                    if (desc.length > 80) {
                        warnings[`descriptions[${i}]`] = `Approaching character limit (${desc.length}/90)`;
                    }
                });
            }
            if (googleAd.displayAd) {
                googleAd.displayAd.headline.forEach((headline, i) => {
                    if (headline.length > 25) {
                        warnings[`displayAd.headline[${i}]`] = `Approaching character limit (${headline.length}/30)`;
                    }
                });
                googleAd.displayAd.longHeadline.forEach((longHeadline, i) => {
                    if (longHeadline.length > 80) {
                        warnings[`displayAd.longHeadline[${i}]`] = `Approaching character limit (${longHeadline.length}/90)`;
                    }
                });
                googleAd.displayAd.description.forEach((description, i) => {
                    if (description.length > 80) {
                        warnings[`displayAd.description[${i}]`] = `Approaching character limit (${description.length}/90)`;
                    }
                });
                if (googleAd.displayAd.businessName.length > 20) {
                    warnings['displayAd.businessName'] = `Approaching character limit (${googleAd.displayAd.businessName.length}/25)`;
                }
            }
        }
        else if (parsed.platform === 'meta') {
            const metaAd = parsed;
            // Warnings for character limits approaching
            metaAd.content.headline.forEach((headline, i) => {
                if (headline.length > 35) {
                    warnings[`headline[${i}]`] = `Approaching character limit (${headline.length}/40)`;
                }
            });
            metaAd.content.description.forEach((description, i) => {
                if (description.length > 25) {
                    warnings[`description[${i}]`] = `Approaching character limit (${description.length}/30)`;
                }
            });
            metaAd.content.primaryText.forEach((primaryText, i) => {
                if (primaryText.length > 100) {
                    warnings[`primaryText[${i}]`] = `Approaching character limit (${primaryText.length}/125)`;
                }
            });
        }
        else if (parsed.platform === 'moment-science') {
            const momentScienceAd = parsed;
            // Warnings for character limits approaching
            momentScienceAd.content.headline.forEach((headline, i) => {
                if (headline.length > 60) {
                    warnings[`headline[${i}]`] = `Approaching character limit (${headline.length}/70)`;
                }
            });
            momentScienceAd.content.description.forEach((description, i) => {
                if (description.length > 160) {
                    warnings[`description[${i}]`] = `Approaching character limit (${description.length}/180)`;
                }
            });
            momentScienceAd.content.short_headline.forEach((shortHeadline, i) => {
                if (shortHeadline.length > 45) {
                    warnings[`short_headline[${i}]`] = `Approaching character limit (${shortHeadline.length}/60)`;
                }
            });
            momentScienceAd.content.short_description.forEach((shortDescription, i) => {
                if (shortDescription.length > 105) {
                    warnings[`short_description[${i}]`] = `Approaching character limit (${shortDescription.length}/140)`;
                }
            });
            momentScienceAd.content.positive_cta.forEach((cta, i) => {
                if (cta.length > 18) {
                    warnings[`positive_cta[${i}]`] = `Approaching character limit (${cta.length}/20)`;
                }
            });
            momentScienceAd.content.negative_cta.forEach((cta, i) => {
                if (cta.length > 18) {
                    warnings[`negative_cta[${i}]`] = `Approaching character limit (${cta.length}/20)`;
                }
            });
        }
        return {
            valid: true,
            warnings: Object.keys(warnings).length > 0 ? warnings : undefined
        };
    }
    catch (error) {
        if (error instanceof z.ZodError) {
            const errors = {};
            error.errors.forEach(err => {
                const path = err.path.join('.');
                errors[path] = err.message;
            });
            return {
                valid: false,
                errors
            };
        }
        return {
            valid: false,
            errors: {
                general: 'Invalid input format'
            }
        };
    }
}
export function getCharacterLimits(platform) {
    if (platform === 'google') {
        return {
            searchAd: {
                headlines: 30,
                descriptions: 90
            },
            displayAd: {
                headline: 30,
                longHeadline: 90,
                description: 90,
                businessName: 25
            }
        };
    }
    else if (platform === 'meta') {
        return {
            headline: 40,
            description: 30,
            primaryText: 125,
            cta: 'No limit',
            businessName: 'No limit'
        };
    }
    else {
        return {
            headline: 90,
            description: 220,
            short_headline: 60,
            short_description: 140,
            positive_cta: 25,
            negative_cta: 25
        };
    }
}
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