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A compiler for generating reliability artifacts from service expectation definitions.
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src/caffeine_lang/parser/artifacts.gleam
import caffeine_lang/common/accepted_types.{type AcceptedTypes}
import caffeine_lang/common/decoders
import caffeine_lang/common/errors.{type CompilationError}
import caffeine_lang/common/helpers
import caffeine_lang/common/validations
import caffeine_lang/standard_library/artifacts
import gleam/dict
import gleam/dynamic/decode
import gleam/json
import gleam/result
/// A reusable artifact template with named parameters.
pub type Artifact {
Artifact(name: String, params: dict.Dict(String, AcceptedTypes))
}
/// Parses the embedded standard library artifacts.
@internal
pub fn parse_standard_library() -> Result(List(Artifact), CompilationError) {
internal_parse_from_json_string(artifacts.standard_library)
}
/// Parses an artifact from an artifacts.json file.
@internal
pub fn parse_from_json_file(
file_path: String,
) -> Result(List(Artifact), CompilationError) {
use json_string <- result.try(helpers.json_from_file(file_path))
internal_parse_from_json_string(json_string)
}
/// The actual, common parsing logic.
fn internal_parse_from_json_string(
content: String,
) -> Result(List(Artifact), CompilationError) {
use artifacts <- result.try(case parse_from_json_string(content) {
Ok(artifacts) -> Ok(artifacts)
Error(err) -> Error(errors.format_json_decode_error(err))
})
use _ <- result.try(validations.validate_relevant_uniqueness(
artifacts,
fn(a) { a.name },
"artifact names",
))
Ok(artifacts)
}
fn parse_from_json_string(
json_string: String,
) -> Result(List(Artifact), json.DecodeError) {
let artifact_decoder = {
use name <- decode.field("name", decoders.non_empty_string_decoder())
use params <- decode.field(
"params",
decode.dict(decode.string, decoders.accepted_types_decoder()),
)
decode.success(Artifact(name:, params:))
}
let artifacts_decoded = {
use artifacts <- decode.field("artifacts", decode.list(artifact_decoder))
decode.success(artifacts)
}
json.parse(from: json_string, using: artifacts_decoded)
}