protograph-core 0.1.0

Core types and SDL parsing for protograph
Documentation 
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use std::collections::HashMap;

#[derive(Debug, Clone, Default)]
pub struct ProtographSchema {
    pub types: HashMap<String, EntityType>,
    pub input_types: HashMap<String, InputType>,
    pub enums: HashMap<String, EnumType>,
    pub query_fields: Vec<QueryField>,
    pub mutation_fields: Vec<MutationField>,
}

#[derive(Debug, Clone)]
pub struct EntityType {
    pub name: String,
    pub is_entity: bool,
    pub is_private: bool,
    pub fields: Vec<Field>,
}

#[derive(Debug, Clone)]
pub struct InputType {
    pub name: String,
    pub fields: Vec<InputField>,
}

#[derive(Debug, Clone)]
pub struct EnumType {
    pub name: String,
    pub values: Vec<String>,
}

#[derive(Debug, Clone)]
pub struct Field {
    pub name: String,
    pub field_type: FieldType,
    pub is_private: bool,
    pub relationship: Option<Relationship>,
}

#[derive(Debug, Clone)]
pub struct InputField {
    pub name: String,
    pub field_type: FieldType,
}

#[derive(Debug, Clone)]
pub enum FieldType {
    Named(String),
    NonNull(Box<FieldType>),
    List(Box<FieldType>),
}

impl FieldType {
    pub fn base_type(&self) -> &str {
        match self {
            FieldType::Named(name) => name,
            FieldType::NonNull(inner) => inner.base_type(),
            FieldType::List(inner) => inner.base_type(),
        }
    }

    pub fn is_list(&self) -> bool {
        match self {
            FieldType::List(_) => true,
            FieldType::NonNull(inner) => inner.is_list(),
            _ => false,
        }
    }

    pub fn is_non_null(&self) -> bool {
        matches!(self, FieldType::NonNull(_))
    }
}

#[derive(Debug, Clone)]
pub enum Relationship {
    BelongsTo { foreign_key: String },
    HasMany { foreign_key: String },
    ManyToMany { junction_table: String, foreign_key: String },
}

#[derive(Debug, Clone)]
pub struct QueryField {
    pub name: String,
    pub arguments: Vec<InputField>,
    pub return_type: FieldType,
}

#[derive(Debug, Clone)]
pub struct MutationField {
    pub name: String,
    pub arguments: Vec<InputField>,
    pub return_type: FieldType,
}