steven-schmoll-at

type CombineAll<T> = T extends {[name in keyof T]: infer Type} ? Type : never

type PropertyNameMap<T, IncludeIntermediate extends boolean> = {
    [name in keyof T]: T[name] extends object ? (
        SubPathsOf<name, T, IncludeIntermediate> | (IncludeIntermediate extends true ? name : never) 
    ) : name
}

type SubPathsOf<key extends keyof T, T, IncludeIntermediate extends boolean> = (
    `${string & key}.${string & PathsOf<T[key], IncludeIntermediate>}`

steven-schmoll-at

/**
 * Converts a type string from a snake_case string to PascalCase.
 * This will convert all snake case strings including strings with no underscores, or many
 */
export type PascaleFromSnake<String extends string> = String extends `${infer First}_${infer Rest}` ? `${Capitalize<Lowercase<First>>}${PascaleFromSnake<Rest>}` : Capitalize<Lowercase<String>>

/**
 * Converts a type string from a snake_case string to camelCase.
 * This will convert all snake case strings including strings with no underscores, or many
 */