use anyhow::{bail, Result};
use crate::{config::{CompletionStrategy, Config}, git, review, ticket, ticket_fmt};
use chrono::Utc;
use std::path::{Path, PathBuf};
pub struct TransitionOutput {
pub id: String,
pub old_state: String,
pub new_state: String,
pub worktree_path: Option<PathBuf>,
pub warnings: Vec<String>,
pub messages: Vec<String>,
}
pub fn transition(root: &Path, id_arg: &str, new_state: String, no_aggressive: bool, force: bool) -> Result<TransitionOutput> {
let mut warnings: Vec<String> = Vec::new();
let mut messages: Vec<String> = Vec::new();
let config = Config::load(root)?;
let valid_states: std::collections::HashSet<&str> = config.workflow.states.iter()
.map(|s| s.id.as_str())
.collect();
if !valid_states.is_empty() && !valid_states.contains(new_state.as_str()) {
let list: Vec<&str> = config.workflow.states.iter().map(|s| s.id.as_str()).collect();
bail!("unknown state {:?} — valid states: {}", new_state, list.join(", "));
}
let aggressive = config.sync.aggressive && !no_aggressive;
let mut tickets = ticket::load_all_from_git(root, &config.tickets.dir)?;
let id = ticket::resolve_id_in_slice(&tickets, id_arg)?;
if aggressive {
let branches = git::ticket_branches(root).unwrap_or_default();
if let Some(b) = branches.iter().find(|b| {
b.strip_prefix("ticket/")
.and_then(|s| s.split('-').next())
.map(|bid| bid == id.as_str())
.unwrap_or(false)
}) {
if let Err(e) = git::fetch_branch(root, b) {
warnings.push(format!("warning: fetch failed: {e:#}"));
}
}
}
let Some(t) = tickets.iter_mut().find(|t| t.frontmatter.id == id) else {
bail!("ticket {id:?} not found");
};
let old_state = t.frontmatter.state.clone();
let target_is_terminal = config.workflow.states.iter()
.find(|s| s.id == new_state)
.map(|s| s.terminal)
.unwrap_or(false);
let completion = if force {
CompletionStrategy::None
} else if !target_is_terminal {
if let Some(state_cfg) = config.workflow.states.iter().find(|s| s.id == old_state) {
if !state_cfg.transitions.is_empty() {
let tr = state_cfg.transitions.iter().find(|tr| tr.to == new_state);
if tr.is_none() {
let allowed: Vec<&str> = state_cfg.transitions.iter().map(|tr| tr.to.as_str()).collect();
bail!(
"no transition from {:?} to {:?} — valid transitions from {:?}: {}",
old_state, new_state, old_state,
allowed.join(", ")
);
}
let found = tr.unwrap();
if let Some(ref w) = found.warning {
warnings.push(format!("⚠ {w}"));
}
found.completion.clone()
} else {
CompletionStrategy::None
}
} else {
CompletionStrategy::None
}
} else {
CompletionStrategy::None
};
match new_state.as_str() {
"specd" => {
if let Ok(doc) = t.document() {
let errors = doc.validate(&config.ticket.sections);
if !errors.is_empty() {
let msgs: Vec<String> = errors.iter().map(|e| format!(" - {e}")).collect();
bail!("spec validation failed:\n{}", msgs.join("\n"));
}
if old_state == "ammend" {
let unchecked = doc.unchecked_tasks("Amendment requests");
if !unchecked.is_empty() {
bail!("not all amendment requests are checked — mark them [x] before resubmitting");
}
}
}
}
"implemented" => {
if let Ok(doc) = t.document() {
let unchecked = doc.unchecked_tasks("Acceptance criteria");
if !unchecked.is_empty() {
bail!(
"not all acceptance criteria are checked — mark them [x] before transitioning to implemented"
);
}
}
}
_ => {}
}
let now = Utc::now();
let actor = crate::config::resolve_caller_name();
t.frontmatter.state = new_state.clone();
t.frontmatter.updated_at = Some(now);
if new_state == "ammend" {
review::ensure_amendment_section(&mut t.body);
}
append_history(&mut t.body, &old_state, &new_state, &now.format("%Y-%m-%dT%H:%MZ").to_string(), &actor);
let content = t.serialize()?;
let rel_path = format!(
"{}/{}",
config.tickets.dir.to_string_lossy(),
t.path.file_name().unwrap().to_string_lossy()
);
let branch = t
.frontmatter
.branch
.clone()
.or_else(|| ticket_fmt::branch_name_from_path(&t.path))
.unwrap_or_else(|| format!("ticket/{id}"));
git::commit_to_branch(
root,
&branch,
&rel_path,
&content,
&format!("ticket({id}): {old_state} → {new_state}"),
)?;
crate::logger::log("state_transition", &format!("{id:?} {old_state} -> {new_state}"));
match completion {
CompletionStrategy::Pr => {
git::push_branch_tracking(root, &branch)?;
let pr_base = t.frontmatter.target_branch.as_deref()
.unwrap_or(&config.project.default_branch);
crate::github::gh_pr_create_or_update(root, &branch, pr_base, &id, &t.frontmatter.title, &format!("Closes #{id}"), &mut messages)?;
}
CompletionStrategy::Merge => {
let merge_result = {
let merge_target = t.frontmatter.target_branch.as_deref()
.unwrap_or(&config.project.default_branch);
let is_main = merge_target == config.project.default_branch;
if let Err(e) = git::push_branch_tracking(root, &branch) {
warnings.push(format!("warning: could not push {branch}: {e}"));
}
git::merge_into_default(root, &config, &branch, merge_target, is_main, &mut messages, &mut warnings)
};
if let Err(merge_err) = merge_result {
let merge_err_msg = format!("{merge_err:#}");
let fail_now = Utc::now();
t.frontmatter.state = "merge_failed".to_string();
t.frontmatter.updated_at = Some(fail_now);
set_merge_notes(&mut t.body, &merge_err_msg);
append_history(&mut t.body, &new_state, "merge_failed", &fail_now.format("%Y-%m-%dT%H:%MZ").to_string(), &actor);
let fallback_content = match t.serialize() {
Ok(c) => c,
Err(_) => return Err(merge_err),
};
if git::commit_to_branch(root, &branch, &rel_path, &fallback_content, &format!("ticket({id}): {new_state} → merge_failed")).is_err() {
return Err(merge_err);
}
crate::logger::log("state_transition", &format!("{id:?} {new_state} -> merge_failed"));
return Ok(TransitionOutput {
id: id.clone(),
old_state: old_state.clone(),
new_state: "merge_failed".to_string(),
worktree_path: None,
warnings,
messages,
});
}
}
CompletionStrategy::PrOrEpicMerge => {
git::push_branch_tracking(root, &branch)?;
if let Some(ref target) = t.frontmatter.target_branch {
git::merge_into_default(root, &config, &branch, target, false, &mut messages, &mut warnings)?;
} else {
crate::github::gh_pr_create_or_update(root, &branch, &config.project.default_branch, &id, &t.frontmatter.title, &format!("Closes #{id}"), &mut messages)?;
}
}
CompletionStrategy::Pull => {
git::pull_default(root, &config.project.default_branch, &mut warnings)?;
}
CompletionStrategy::None => {
if aggressive {
if let Err(e) = git::push_branch_tracking(root, &branch) {
warnings.push(format!("warning: push failed: {e:#}"));
}
}
}
}
let worktree_path = if new_state == "in_design" {
Some(crate::worktree::provision_worktree(root, &config, &branch, &mut warnings)?)
} else {
None
};
Ok(TransitionOutput {
id,
old_state,
new_state,
worktree_path,
warnings,
messages,
})
}
pub fn available_transitions(config: &crate::config::Config, current_state: &str) -> Vec<(String, String, String)> {
let terminal_ids: Vec<&str> = config.workflow.states.iter()
.filter(|s| s.terminal)
.map(|s| s.id.as_str())
.collect();
let state_cfg = config.workflow.states.iter().find(|s| s.id == current_state);
if let Some(sc) = state_cfg {
if !sc.transitions.is_empty() {
return sc.transitions.iter()
.filter(|tr| !tr.trigger.starts_with("event:"))
.map(|tr| (tr.to.clone(), tr.label.clone(), tr.hint.clone()))
.collect();
}
}
config.workflow.states.iter()
.filter(|s| s.id != current_state && !terminal_ids.contains(&s.id.as_str()))
.map(|s| (s.id.clone(), s.label.clone(), String::new()))
.collect()
}
#[derive(serde::Serialize, Clone, Debug)]
pub struct TransitionOption {
pub to: String,
pub label: String,
#[serde(skip_serializing_if = "Option::is_none")]
pub warning: Option<String>,
}
pub fn compute_valid_transitions(state: &str, config: &crate::config::Config) -> Vec<TransitionOption> {
config
.workflow
.states
.iter()
.find(|s| s.id == state)
.map(|s| {
s.transitions
.iter()
.map(|tr| TransitionOption {
to: tr.to.clone(),
label: if tr.label.is_empty() {
format!("-> {}", tr.to)
} else {
tr.label.clone()
},
warning: tr.warning.clone(),
})
.collect()
})
.unwrap_or_default()
}
fn set_merge_notes(body: &mut String, notes: &str) {
const SECTION: &str = "### Merge notes";
if let Some(start) = body.find(SECTION) {
let actual_start = if start > 0 && body.as_bytes().get(start - 1) == Some(&b'\n') {
start - 1
} else {
start
};
let after_header = start + SECTION.len();
let end = body[after_header..]
.find("\n##")
.map(|i| after_header + i)
.unwrap_or(body.len());
body.replace_range(actual_start..end, "");
}
let block = format!("\n{SECTION}\n\n{notes}\n");
if let Some(pos) = body.find("\n## History") {
body.insert_str(pos, &block);
} else {
body.push_str(&block);
}
}
pub fn append_history(body: &mut String, from: &str, to: &str, when: &str, by: &str) {
let row = format!("| {when} | {from} | {to} | {by} |");
if body.contains("## History") {
if !body.ends_with('\n') {
body.push('\n');
}
body.push_str(&row);
body.push('\n');
} else {
body.push_str(&format!(
"\n## History\n\n| When | From | To | By |\n|------|------|----|----|\n{row}\n"
));
}
}
#[cfg(test)]
mod tests {
use super::*;
fn config_with_transitions() -> crate::config::Config {
let toml = concat!(
"[project]\nname = \"test\"\n",
"[tickets]\ndir = \"tickets\"\n",
"[[workflow.states]]\n",
"id = \"new\"\nlabel = \"New\"\n",
"[[workflow.states.transitions]]\n",
"to = \"ready\"\nlabel = \"Mark ready\"\n",
"[[workflow.states.transitions]]\n",
"to = \"closed\"\nlabel = \"\"\n",
"warning = \"This will close the ticket\"\n",
"[[workflow.states]]\n",
"id = \"ready\"\nlabel = \"Ready\"\n",
"[[workflow.states]]\n",
"id = \"closed\"\nlabel = \"Closed\"\nterminal = true\n",
);
toml::from_str(toml).unwrap()
}
#[test]
fn set_merge_notes_inserts_before_history() {
let mut body = "## Spec\n\ncontent\n\n## History\n\n| row |".to_string();
set_merge_notes(&mut body, "conflict error");
assert!(body.contains("### Merge notes\n\nconflict error\n"));
let notes_pos = body.find("### Merge notes").unwrap();
let hist_pos = body.find("## History").unwrap();
assert!(notes_pos < hist_pos);
}
#[test]
fn set_merge_notes_appends_when_no_history() {
let mut body = "## Spec\n\ncontent".to_string();
set_merge_notes(&mut body, "error msg");
assert!(body.contains("### Merge notes\n\nerror msg\n"));
}
#[test]
fn set_merge_notes_overwrites_existing_section() {
let mut body = "## Spec\n\n### Merge notes\n\nold error\n\n## History\n\n| row |".to_string();
set_merge_notes(&mut body, "new error");
assert!(body.contains("### Merge notes\n\nnew error\n"));
assert!(!body.contains("old error"));
let notes_pos = body.find("### Merge notes").unwrap();
let hist_pos = body.find("## History").unwrap();
assert!(notes_pos < hist_pos);
}
#[test]
fn compute_valid_transitions_returns_expected_options() {
let config = config_with_transitions();
let opts = compute_valid_transitions("new", &config);
assert_eq!(opts.len(), 2);
assert_eq!(opts[0].to, "ready");
assert_eq!(opts[0].label, "Mark ready");
assert!(opts[0].warning.is_none());
assert_eq!(opts[1].to, "closed");
assert_eq!(opts[1].label, "-> closed");
assert_eq!(opts[1].warning.as_deref(), Some("This will close the ticket"));
}
#[test]
fn compute_valid_transitions_unknown_state_returns_empty() {
let config = config_with_transitions();
let opts = compute_valid_transitions("nonexistent", &config);
assert!(opts.is_empty());
}
}