aldrin-parser 0.13.0

use super::{Error, ErrorKind};
use crate::ast::{Ident, LitUuid};
use crate::diag::{Diagnostic, DiagnosticKind, Renderer};
use crate::issues::Issues;
use crate::{Parser, Schema};
use std::collections::HashMap;

#[derive(Debug)]
pub(crate) struct DuplicateServiceUuid {
    schema_name: String,
    uuid: LitUuid,
    svc_idents: Vec<(String, Ident)>,
}

impl DuplicateServiceUuid {
    pub(crate) fn validate<'a, I>(schemas: I, issues: &mut Issues)
    where
        I: IntoIterator<Item = &'a Schema>,
    {
        let mut uuids: HashMap<_, Vec<_>> = HashMap::new();

        for schema in schemas {
            for def in schema.definitions() {
                let Some(svc) = def.as_service() else {
                    continue;
                };

                uuids
                    .entry(svc.uuid().value())
                    .or_default()
                    .push((schema, svc));
            }
        }

        for (_, entries) in uuids {
            if entries.len() > 1 {
                let first = entries.first().unwrap();

                issues.add_error(Self {
                    schema_name: first.0.name().to_owned(),
                    uuid: first.1.uuid().clone(),
                    svc_idents: entries
                        .into_iter()
                        .map(|(schema, svc)| (schema.name().to_owned(), svc.name().clone()))
                        .collect(),
                });
            }
        }
    }
}

impl Diagnostic for DuplicateServiceUuid {
    fn kind(&self) -> DiagnosticKind {
        DiagnosticKind::Error
    }

    fn schema_name(&self) -> &str {
        &self.schema_name
    }

    fn render(&self, renderer: &Renderer, parser: &Parser) -> String {
        let mut report = renderer.error(format!("duplicate service uuid `{}`", self.uuid.value()));

        if let Some(schema) = parser.get_schema(&self.schema_name) {
            report = report.snippet(schema, self.uuid.span(), "this uuid is used multiple times");
        }

        for (schema_name, svc_ident) in &self.svc_idents {
            if let Some(schema) = parser.get_schema(schema_name) {
                report = report.context(schema, svc_ident.span(), "used for this service");
            }
        }

        report = report.help("use different uuids for each service");
        report.render()
    }
}

impl From<DuplicateServiceUuid> for Error {
    fn from(e: DuplicateServiceUuid) -> Self {
        Self {
            kind: ErrorKind::DuplicateServiceUuid(e),
        }
    }
}