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WalkthroughThe conversion logic for transforming Handlebars variables to JSX was enhanced with a new helper for variable name mapping. The template generation functions and component signatures were updated to use richer variable metadata and a new props structure. A static property for preview variables was added, and related function signatures were modified accordingly. Changes
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~15 minutes Poem
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Greptile Summary
This PR addresses a variable conversion issue in the email template migration system. The changes transform the email template variable structure from a flat approach (where variables like userDisplayName and projectDisplayName were passed as individual props) to a more organized nested structure.
The key modification is the addition of a transformVariableName function that maps legacy handlebars variable names to the new JSX/TypeScript syntax:
userDisplayName→user.displayNameprojectDisplayName→project.displayName- Other variables →
variables.{varName}
The PR also updates the template generation process to use EmailTemplateMetadata['variables'] type instead of a plain string array, and changes the generated template interface from individual variable props to a structured Props<T> interface with separate user, project, and variables objects. Additionally, it adds a PreviewVariables export with example values for template previews.
This change is part of a broader migration to improve type safety and organization in the email template system, ensuring that existing handlebars templates remain compatible with the new nested variable structure while providing better separation of built-in variables from custom ones.
Confidence score: 4/5
• This PR appears safe to merge as it primarily handles variable name mapping and type structure updates without affecting core functionality
• The confidence score reflects that while the logic looks correct, the change touches template generation which could have subtle effects on email rendering if the variable mapping is incomplete
• The file apps/backend/src/app/api/latest/internal/email-templates/temp/convert.tsx needs more attention to ensure all variable mappings are comprehensive and handle edge cases properly
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apps/backend/src/app/api/latest/internal/email-templates/temp/convert.tsx
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Actionable comments posted: 1
🧹 Nitpick comments (1)
apps/backend/src/app/api/latest/internal/email-templates/temp/convert.tsx (1)
5-7: Consider refactoring for better readability.The logic is correct, but the chained ternary operators can be hard to read and maintain.
Consider using a switch statement or object lookup for better readability:
-function transformVariableName(variable: string): string { - return variable === "userDisplayName" ? "user.displayName" : variable === "projectDisplayName" ? "project.displayName" : `variables.${variable}`; -} +function transformVariableName(variable: string): string { + switch (variable) { + case "userDisplayName": + return "user.displayName"; + case "projectDisplayName": + return "project.displayName"; + default: + return `variables.${variable}`; + } +}
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apps/backend/src/app/api/latest/internal/email-templates/temp/convert.tsx(4 hunks)
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apps/backend/src/app/api/latest/internal/email-templates/temp/convert.tsx (1)
packages/stack-emails/src/utils.tsx (1)
EmailTemplateMetadata(30-36)
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🔇 Additional comments (8)
apps/backend/src/app/api/latest/internal/email-templates/temp/convert.tsx (8)
34-34: LGTM!Correct usage of the
transformVariableNamehelper for consistent variable transformation in conditional blocks.
38-38: LGTM!Correct usage of the
transformVariableNamehelper for consistent variable transformation in simple replacements.
53-53: LGTM!The function signature change to use
EmailTemplateMetadata["variables"]provides access to richer variable metadata needed for the enhanced variable handling and preview generation.
409-409: LGTM!Adding the
Propsimport is necessary for the new component signature structure.
411-413: LGTM!The schema generation correctly uses variable names from the metadata and provides a clear, typed structure for the email template variables.
415-415: LGTM!The component signature change to destructure
user,project, andvariablesfrom a typed Props object is consistent with the new variable transformation approach and provides better type safety.
423-428: LGTM!The
PreviewVariablesstatic property is a great addition that provides example values for template previewing, enhancing the developer experience. The type annotation ensures it satisfies the schema requirements.
436-436: LGTM!Correctly passing the full
metadata.variablesarray instead of just names enables the enhanced functionality ingenerateTsxSourceFromConfiguration.
apps/backend/src/app/api/latest/internal/email-templates/temp/convert.tsx
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Important
Fix variable conversion in email templates by centralizing logic and updating function signatures and schemas.
transformVariableName()to convertuserDisplayNametouser.displayNameandprojectDisplayNametoproject.displayNameinconvert.tsx.convertHandlebarsToJSX()to usetransformVariableName()for variable conversion.generateTsxSourceFromConfiguration()to acceptEmailTemplateMetadata["variables"]instead ofstring[].EmailTemplate()to useProps<typeof variablesSchema.infer>for parameters.schematovariablesSchemaand update its structure.EmailTemplate.PreviewVariablesto provide example values for variables.This description was created by
for b0334a0. You can customize this summary. It will automatically update as commits are pushed.
Summary by CodeRabbit
New Features
Refactor