prov 0.6.4

//! Fixtures the two test modules share.

use std::path::{Path, PathBuf};

use prov_graph::exec::block_on;
use prov_history::*;

pub(super) use crate::workspace::Workspace;
pub(super) use prov_graph::fs::StdFs;
pub(super) use prov_store::index::FileIndex;

pub(super) fn tempdir(tag: &str) -> PathBuf {
    let dir = std::env::temp_dir().join(format!("prov-history-{tag}-{}", std::process::id()));
    let _ = std::fs::remove_dir_all(&dir);
    std::fs::create_dir_all(&dir).unwrap();
    dir
}

pub(super) fn write(dir: &Path, rel: &str, text: &str) {
    let p = dir.join(rel);
    std::fs::create_dir_all(p.parent().unwrap()).unwrap();
    std::fs::write(p, text).unwrap();
}

pub(super) fn read(dir: &Path, rel: &str) -> String {
    std::fs::read_to_string(dir.join(rel)).unwrap()
}

pub(super) fn ws(dir: &Path) -> Workspace<StdFs, crate::identity::Minter, FileIndex> {
    Workspace::builder(StdFs)
        .root(dir)
        .identity(crate::identity::Minter::lazy(42))
        .index(FileIndex::new(fig::Format::Yaml))
        // The axis the store's own verbs never consult, and `check` does: with it
        // off, a store the root has stopped declaring is not a finding. Every
        // fixture here has a store on purpose, so `manual` is the honest default.
        .history(crate::config::History::Manual)
        .build()
}

/// [`ws`] with the `history` axis off — for the one distinction that turns on it:
/// a leftover store nobody declared is only a defect in a workspace that says it
/// wants one.
pub(super) fn ws_history_off(dir: &Path) -> Workspace<StdFs, crate::identity::Minter, FileIndex> {
    Workspace::builder(StdFs)
        .root(dir)
        .identity(crate::identity::Minter::lazy(42))
        .index(FileIndex::new(fig::Format::Yaml))
        .build()
}

/// A small workspace: a root, two notes, and an attachment (payload plus
/// sidecar) — so the capture set covers the shapes that actually matter.
pub(super) fn seed(tag: &str) -> PathBuf {
    let dir = tempdir(tag);
    write(
        &dir,
        "index.md",
        "---\ntitle: Home\ncontents:\n- notes/a.md\n- notes/photo.jpg.yaml\n---\nroot\n",
    );
    write(
        &dir,
        "notes/a.md",
        "---\ntitle: A\npart_of: '../index.md'\n---\nalpha\n",
    );
    write(&dir, "notes/photo.jpg", "JPEGBYTES");
    write(
        &dir,
        "notes/photo.jpg.yaml",
        "title: Photo\npart_of: '../index.md'\ncontent: photo.jpg\n",
    );
    dir
}

pub(super) fn capture(dir: &Path, now: &str, label: Option<&str>) -> Captured {
    block_on(ws(dir).history_capture(
        Path::new("index.md"),
        now,
        crate::CaptureNote::labelled(label),
    ))
    .unwrap()
}

/// Capture with `notes/a.md` rewritten first, so each capture has something to
/// record — and so the untouched files keep sharing the blob they already
/// parked.
pub(super) fn capture_edited(dir: &Path, now: &str, label: &str, body: &str) -> String {
    write(
        dir,
        "notes/a.md",
        &format!("---\ntitle: A\npart_of: '../index.md'\n---\n{body}\n"),
    );
    match capture(dir, now, Some(label)) {
        Captured::Written { id, .. } => id,
        Captured::Unchanged { id } => panic!("expected a new event, got {id}"),
    }
}

/// Every finding `check` reports for this workspace.
pub(super) fn check(dir: &Path) -> Vec<crate::validate::Finding> {
    block_on(ws(dir).check(Path::new("index.md"))).unwrap()
}

/// Corrupt an event document the way a sync transport actually does: a
/// conflict lands **inside** the frontmatter fence rather than beside it, so no
/// filename check can catch it. The result still has an event-shaped filename,
/// so the store finds it, but nothing in its content parses any more.
pub(super) fn tear(dir: &Path, rel: &str) {
    let text = read(dir, rel);
    let mangled = text.replacen("---\n", "---\n<<<<<<< ours\n=======\n>>>>>>> theirs\n", 1);
    write(dir, rel, &mangled);
}

pub(super) fn blob_of(bytes: &[u8]) -> PathBuf {
    blob_path(Path::new("history/index.md"), &crate::fixity::digest(bytes)).unwrap()
}

/// Re-point the root at `contents`, keeping the `history` pointer — a rename or
/// deletion made visible to the reachable walk without stranding the store.
pub(super) fn relink_live(dir: &Path, contents: &[&str]) {
    let list = contents
        .iter()
        .map(|c| format!("- {c}\n"))
        .collect::<String>();
    write(
        dir,
        "index.md",
        &format!("---\ntitle: Home\nhistory: history/index.md\ncontents:\n{list}---\nroot\n"),
    );
}