Add v1 reader

dump/src/reader/v1/mod.rs

@@ -1,173 +1,263 @@
 use std::{
-    convert::Infallible,
     fs::{self, File},
     io::{BufRead, BufReader},
-    path::Path,
+    path::{Path, PathBuf},
 };
 
 use tempfile::TempDir;
 use time::OffsetDateTime;
 
-use self::update::UpdateStatus;
-
-use super::{DumpReader, IndexReader};
-use crate::{Error, Result, Version};
+use super::{compat::v1_to_v2::CompatV1ToV2, Document};
+use crate::{IndexMetadata, Result, Version};
+use serde::Deserialize;
 
 pub mod settings;
 pub mod update;
-pub mod v1;
 
 pub struct V1Reader {
-    dump: TempDir,
-    metadata: v1::Metadata,
-    indexes: Vec<V1IndexReader>,
+    pub dump: TempDir,
+    pub db_version: String,
+    pub dump_version: crate::Version,
+    indexes: Vec<V1Index>,
 }
 
-struct V1IndexReader {
-    name: String,
+pub struct IndexUuid {
+    pub name: String,
+    pub uid: String,
+}
+pub type Task = self::update::UpdateStatus;
+
+struct V1Index {
+    metadata: IndexMetadataV1,
+    path: PathBuf,
+}
+
+impl V1Index {
+    pub fn new(path: PathBuf, metadata: Index) -> Self {
+        Self { metadata: metadata.into(), path }
+    }
+
+    pub fn open(&self) -> Result<V1IndexReader> {
+        V1IndexReader::new(&self.path, self.metadata.clone())
+    }
+
+    pub fn metadata(&self) -> &IndexMetadata {
+        &self.metadata.metadata
+    }
+}
+
+pub struct V1IndexReader {
+    metadata: IndexMetadataV1,
     documents: BufReader<File>,
     settings: BufReader<File>,
     updates: BufReader<File>,
-
-    current_update: Option<UpdateStatus>,
 }
 
 impl V1IndexReader {
-    pub fn new(name: String, path: &Path) -> Result<Self> {
-        let mut ret = V1IndexReader {
-            name,
+    pub fn new(path: &Path, metadata: IndexMetadataV1) -> Result<Self> {
+        Ok(V1IndexReader {
+            metadata,
             documents: BufReader::new(File::open(path.join("documents.jsonl"))?),
             settings: BufReader::new(File::open(path.join("settings.json"))?),
             updates: BufReader::new(File::open(path.join("updates.jsonl"))?),
-            current_update: None,
-        };
-        ret.next_update();
-
-        Ok(ret)
+        })
     }
 
-    pub fn next_update(&mut self) -> Result<Option<UpdateStatus>> {
-        let current_update = if let Some(line) = self.updates.lines().next() {
-            Some(serde_json::from_str(&line?)?)
-        } else {
-            None
-        };
+    pub fn metadata(&self) -> &IndexMetadata {
+        &self.metadata.metadata
+    }
 
-        Ok(std::mem::replace(&mut self.current_update, current_update))
+    pub fn documents(&mut self) -> Result<impl Iterator<Item = Result<Document>> + '_> {
+        Ok((&mut self.documents)
+            .lines()
+            .map(|line| -> Result<_> { Ok(serde_json::from_str(&line?)?) }))
+    }
+
+    pub fn settings(&mut self) -> Result<self::settings::Settings> {
+        Ok(serde_json::from_reader(&mut self.settings)?)
+    }
+
+    pub fn tasks(self) -> impl Iterator<Item = Result<Task>> {
+        self.updates.lines().map(|line| -> Result<_> { Ok(serde_json::from_str(&line?)?) })
     }
 }
 
 impl V1Reader {
     pub fn open(dump: TempDir) -> Result<Self> {
-        let mut meta_file = fs::read(dump.path().join("metadata.json"))?;
-        let metadata = serde_json::from_reader(&*meta_file)?;
+        let meta_file = fs::read(dump.path().join("metadata.json"))?;
+        let metadata: Metadata = serde_json::from_reader(&*meta_file)?;
 
         let mut indexes = Vec::new();
 
-        let entries = fs::read_dir(dump.path())?;
-        for entry in entries {
-            let entry = entry?;
-            if entry.file_type()?.is_dir() {
-                indexes.push(V1IndexReader::new(
-                    entry
-                        .file_name()
-                        .to_str()
-                        .ok_or(Error::BadIndexName)?
-                        .to_string(),
-                    &entry.path(),
-                )?);
-            }
+        for index in metadata.indexes.into_iter() {
+            let index_path = dump.path().join(&index.uid);
+            indexes.push(V1Index::new(index_path, index));
         }
 
         Ok(V1Reader {
             dump,
-            metadata,
             indexes,
+            db_version: metadata.db_version,
+            dump_version: metadata.dump_version,
         })
     }
 
-    fn next_update(&mut self) -> Result<Option<UpdateStatus>> {
-        if let Some((idx, _)) = self
-            .indexes
+    pub fn to_v2(self) -> CompatV1ToV2 {
+        CompatV1ToV2 { from: self }
+    }
+
+    pub fn index_uuid(&self) -> Vec<IndexUuid> {
+        self.indexes
             .iter()
-            .map(|index| index.current_update)
-            .enumerate()
-            .filter_map(|(idx, update)| update.map(|u| (idx, u)))
-            .min_by_key(|(_, update)| update.enqueued_at())
-        {
-            self.indexes[idx].next_update()
-        } else {
-            Ok(None)
-        }
-    }
-}
-
-impl IndexReader for &V1IndexReader {
-    type Document = serde_json::Map<String, serde_json::Value>;
-    type Settings = settings::Settings;
-
-    fn name(&self) -> &str {
-        todo!()
+            .map(|index| IndexUuid {
+                name: index.metadata.name.to_owned(),
+                uid: index.metadata().uid.to_owned(),
+            })
+            .collect()
     }
 
-    fn documents(&self) -> Result<Box<dyn Iterator<Item = Result<Self::Document>>>> {
-        todo!()
-    }
-
-    fn settings(&self) -> Result<Self::Settings> {
-        todo!()
-    }
-}
-
-impl DumpReader for V1Reader {
-    type Document = serde_json::Map<String, serde_json::Value>;
-    type Settings = settings::Settings;
-
-    type Task = update::UpdateStatus;
-    type UpdateFile = Infallible;
-
-    type Key = Infallible;
-
-    fn date(&self) -> Option<OffsetDateTime> {
-        None
-    }
-
-    fn version(&self) -> Version {
+    pub fn version(&self) -> Version {
         Version::V1
     }
 
-    fn indexes(
-        &self,
-    ) -> Result<
-        Box<
-            dyn Iterator<
-                Item = Result<
-                    Box<
-                        dyn super::IndexReader<
-                            Document = Self::Document,
-                            Settings = Self::Settings,
-                        >,
-                    >,
-                >,
-            >,
-        >,
-    > {
-        Ok(Box::new(self.indexes.iter().map(|index| {
-            let index = Box::new(index)
-                as Box<dyn IndexReader<Document = Self::Document, Settings = Self::Settings>>;
-            Ok(index)
-        })))
+    pub fn date(&self) -> Option<OffsetDateTime> {
+        None
     }
 
-    fn tasks(&self) -> Box<dyn Iterator<Item = Result<(Self::Task, Option<Self::UpdateFile>)>>> {
-        Box::new(std::iter::from_fn(|| {
-            self.next_update()
-                .transpose()
-                .map(|result| result.map(|task| (task, None)))
-        }))
-    }
-
-    fn keys(&self) -> Box<dyn Iterator<Item = Result<Self::Key>>> {
-        Box::new(std::iter::empty())
+    pub fn indexes(&self) -> Result<impl Iterator<Item = Result<V1IndexReader>> + '_> {
+        Ok(self.indexes.iter().map(|index| index.open()))
+    }
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct Index {
+    pub name: String,
+    pub uid: String,
+    #[serde(with = "time::serde::rfc3339")]
+    created_at: OffsetDateTime,
+    #[serde(with = "time::serde::rfc3339")]
+    updated_at: OffsetDateTime,
+    pub primary_key: Option<String>,
+}
+
+#[derive(Clone)]
+pub struct IndexMetadataV1 {
+    pub name: String,
+    pub metadata: crate::IndexMetadata,
+}
+
+impl From<Index> for IndexMetadataV1 {
+    fn from(index: Index) -> Self {
+        IndexMetadataV1 {
+            name: index.name,
+            metadata: crate::IndexMetadata {
+                uid: index.uid,
+                primary_key: index.primary_key,
+                created_at: index.created_at,
+                updated_at: index.updated_at,
+            },
+        }
+    }
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct Metadata {
+    pub indexes: Vec<Index>,
+    pub db_version: String,
+    pub dump_version: crate::Version,
+}
+
+#[cfg(test)]
+pub(crate) mod test {
+    use std::fs::File;
+    use std::io::BufReader;
+
+    use flate2::bufread::GzDecoder;
+    use meili_snap::insta;
+    use tempfile::TempDir;
+
+    use super::*;
+
+    #[test]
+    fn read_dump_v1() {
+        let dump = File::open("tests/assets/v1.dump").unwrap();
+        let dir = TempDir::new().unwrap();
+        let mut dump = BufReader::new(dump);
+        let gz = GzDecoder::new(&mut dump);
+        let mut archive = tar::Archive::new(gz);
+        archive.unpack(dir.path()).unwrap();
+
+        let dump = V1Reader::open(dir).unwrap();
+
+        // top level infos
+        assert_eq!(dump.date(), None);
+
+        // indexes
+        let mut indexes = dump.indexes().unwrap().collect::<Result<Vec<_>>>().unwrap();
+
+        let mut products = indexes.pop().unwrap();
+        let mut movies = indexes.pop().unwrap();
+        let mut dnd_spells = indexes.pop().unwrap();
+
+        assert!(indexes.is_empty());
+
+        // products
+        insta::assert_json_snapshot!(products.metadata(), { ".createdAt" => "[now]", ".updatedAt" => "[now]" }, @r###"
+        {
+          "uid": "products",
+          "primaryKey": "sku",
+          "createdAt": "[now]",
+          "updatedAt": "[now]"
+        }
+        "###);
+
+        insta::assert_json_snapshot!(products.settings().unwrap());
+        let documents = products.documents().unwrap().collect::<Result<Vec<_>>>().unwrap();
+        assert_eq!(documents.len(), 10);
+        meili_snap::snapshot_hash!(format!("{:#?}", documents), @"b01c8371aea4c7171af0d4d846a2bdca");
+
+        // products tasks
+        let tasks = products.tasks().collect::<Result<Vec<_>>>().unwrap();
+        meili_snap::snapshot_hash!(meili_snap::json_string!(tasks), @"91de507f206ad21964584021932ba7a7");
+
+        // movies
+        insta::assert_json_snapshot!(movies.metadata(), { ".createdAt" => "[now]", ".updatedAt" => "[now]" }, @r###"
+        {
+          "uid": "movies",
+          "primaryKey": "id",
+          "createdAt": "[now]",
+          "updatedAt": "[now]"
+        }
+        "###);
+
+        insta::assert_json_snapshot!(movies.settings().unwrap());
+        let documents = movies.documents().unwrap().collect::<Result<Vec<_>>>().unwrap();
+        assert_eq!(documents.len(), 10);
+        meili_snap::snapshot_hash!(format!("{:#?}", documents), @"b63dbed5bbc059f3e32bc471ae699bf5");
+
+        // movies tasks
+        let tasks = movies.tasks().collect::<Result<Vec<_>>>().unwrap();
+        meili_snap::snapshot_hash!(meili_snap::json_string!(tasks), @"55eef4de2bef7e84c5ce0bee47488f56");
+
+        // spells
+        insta::assert_json_snapshot!(dnd_spells.metadata(), { ".createdAt" => "[now]", ".updatedAt" => "[now]" }, @r###"
+        {
+          "uid": "dnd_spells",
+          "primaryKey": "index",
+          "createdAt": "[now]",
+          "updatedAt": "[now]"
+        }
+        "###);
+
+        insta::assert_json_snapshot!(dnd_spells.settings().unwrap());
+        let documents = dnd_spells.documents().unwrap().collect::<Result<Vec<_>>>().unwrap();
+        assert_eq!(documents.len(), 10);
+        meili_snap::snapshot_hash!(format!("{:#?}", documents), @"aa24c0cfc733d66c396237ad44263bed");
+
+        // spells tasks
+        let tasks = dnd_spells.tasks().collect::<Result<Vec<_>>>().unwrap();
+        meili_snap::snapshot_hash!(meili_snap::json_string!(tasks), @"836dd7d64d5ad20ad901c44b1b161a4c");
     }
 }

dump/src/reader/v1/snapshots/dump__reader__v1__test__read_dump_v1-10.snap

@@ -0,0 +1,24 @@
+---
+source: dump/src/reader/v1/mod.rs
+expression: dnd_spells.settings().unwrap()
+---
+{
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "wordsPosition",
+    "exactness"
+  ],
+  "distinctAttribute": null,
+  "searchableAttributes": [
+    "*"
+  ],
+  "displayedAttributes": [
+    "*"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "attributesForFaceting": []
+}

dump/src/reader/v1/snapshots/dump__reader__v1__test__read_dump_v1-12.snap

@@ -0,0 +1,24 @@
+---
+source: dump/src/reader/v1/mod.rs
+expression: dnd_spells.settings().unwrap()
+---
+{
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "wordsPosition",
+    "exactness"
+  ],
+  "distinctAttribute": null,
+  "searchableAttributes": [
+    "*"
+  ],
+  "displayedAttributes": [
+    "*"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "attributesForFaceting": []
+}

dump/src/reader/v1/snapshots/dump__reader__v1__test__read_dump_v1-2.snap

@@ -0,0 +1,38 @@
+---
+source: dump/src/reader/v1/mod.rs
+expression: products.settings().unwrap()
+---
+{
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "wordsPosition",
+    "exactness"
+  ],
+  "distinctAttribute": null,
+  "searchableAttributes": [
+    "*"
+  ],
+  "displayedAttributes": [
+    "*"
+  ],
+  "stopWords": [],
+  "synonyms": {
+    "android": [
+      "phone",
+      "smartphone"
+    ],
+    "iphone": [
+      "phone",
+      "smartphone"
+    ],
+    "phone": [
+      "android",
+      "iphone",
+      "smartphone"
+    ]
+  },
+  "attributesForFaceting": []
+}

dump/src/reader/v1/snapshots/dump__reader__v1__test__read_dump_v1-5.snap

@@ -0,0 +1,28 @@
+---
+source: dump/src/reader/v1/mod.rs
+expression: movies.settings().unwrap()
+---
+{
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "wordsPosition",
+    "exactness",
+    "asc(release_date)"
+  ],
+  "distinctAttribute": null,
+  "searchableAttributes": [
+    "*"
+  ],
+  "displayedAttributes": [
+    "*"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "attributesForFaceting": [
+    "id",
+    "genres"
+  ]
+}

dump/src/reader/v1/snapshots/dump__reader__v1__test__read_dump_v1-6.snap

@@ -0,0 +1,28 @@
+---
+source: dump/src/reader/v1/mod.rs
+expression: movies.settings().unwrap()
+---
+{
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "wordsPosition",
+    "exactness",
+    "asc(release_date)"
+  ],
+  "distinctAttribute": null,
+  "searchableAttributes": [
+    "*"
+  ],
+  "displayedAttributes": [
+    "*"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "attributesForFaceting": [
+    "id",
+    "genres"
+  ]
+}

dump/src/reader/v1/snapshots/dump__reader__v1__test__read_dump_v1-7.snap

@@ -0,0 +1,28 @@
+---
+source: dump/src/reader/v1/mod.rs
+expression: movies.settings().unwrap()
+---
+{
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "wordsPosition",
+    "exactness",
+    "asc(release_date)"
+  ],
+  "distinctAttribute": null,
+  "searchableAttributes": [
+    "*"
+  ],
+  "displayedAttributes": [
+    "*"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "attributesForFaceting": [
+    "id",
+    "genres"
+  ]
+}

dump/src/reader/v1/snapshots/dump__reader__v1__test__read_dump_v1-8.snap

@@ -0,0 +1,24 @@
+---
+source: dump/src/reader/v1/mod.rs
+expression: dnd_spells.settings().unwrap()
+---
+{
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "wordsPosition",
+    "exactness"
+  ],
+  "distinctAttribute": null,
+  "searchableAttributes": [
+    "*"
+  ],
+  "displayedAttributes": [
+    "*"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "attributesForFaceting": []
+}

dump/src/reader/v1/update.rs

@@ -1,54 +1,8 @@
 use serde::{Deserialize, Serialize};
-use serde_json::Value;
 use time::OffsetDateTime;
 
 use super::settings::SettingsUpdate;
 
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct Update {
-    data: UpdateData,
-    #[serde(with = "time::serde::rfc3339")]
-    enqueued_at: OffsetDateTime,
-}
-
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub enum UpdateData {
-    ClearAll,
-    Customs(Vec<u8>),
-    // (primary key, documents)
-    DocumentsAddition {
-        primary_key: Option<String>,
-        documents: Vec<serde_json::Map<String, Value>>,
-    },
-    DocumentsPartial {
-        primary_key: Option<String>,
-        documents: Vec<serde_json::Map<String, Value>>,
-    },
-    DocumentsDeletion(Vec<String>),
-    Settings(Box<SettingsUpdate>),
-}
-
-impl UpdateData {
-    pub fn update_type(&self) -> UpdateType {
-        match self {
-            UpdateData::ClearAll => UpdateType::ClearAll,
-            UpdateData::Customs(_) => UpdateType::Customs,
-            UpdateData::DocumentsAddition { documents, .. } => UpdateType::DocumentsAddition {
-                number: documents.len(),
-            },
-            UpdateData::DocumentsPartial { documents, .. } => UpdateType::DocumentsPartial {
-                number: documents.len(),
-            },
-            UpdateData::DocumentsDeletion(deletion) => UpdateType::DocumentsDeletion {
-                number: deletion.len(),
-            },
-            UpdateData::Settings(update) => UpdateType::Settings {
-                settings: update.clone(),
-            },
-        }
-    }
-}
-
 #[derive(Debug, Clone, Serialize, Deserialize)]
 #[serde(tag = "name")]
 pub enum UpdateType {

dump/src/reader/v1/v1.rs

@@ -1,22 +0,0 @@
-use serde::Deserialize;
-use time::OffsetDateTime;
-
-#[derive(Debug, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub struct Index {
-    pub name: String,
-    pub uid: String,
-    #[serde(with = "time::serde::rfc3339")]
-    created_at: OffsetDateTime,
-    #[serde(with = "time::serde::rfc3339")]
-    updated_at: OffsetDateTime,
-    pub primary_key: Option<String>,
-}
-
-#[derive(Debug, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub struct Metadata {
-    indexes: Vec<Index>,
-    db_version: String,
-    dump_version: crate::Version,
-}