import type { TemplateContext } from './types';
import { CODEX_WEB_SEARCH_FLAG } from './constants';

/**
 * {{CODEX_WEB_SEARCH_FLAG}} — the non-deprecated codex web-search flag
 * (#2525). Templates with inline codex invocations reference this token so
 * the flag has exactly one source of truth (scripts/resolvers/constants.ts).
 */
export function generateCodexWebSearchFlag(_ctx: TemplateContext): string {
  return CODEX_WEB_SEARCH_FLAG;
}

export function generateSlugEval(ctx: TemplateContext): string {
  return `eval "$(${ctx.paths.binDir}/gstack-slug 2>/dev/null)"`;
}

export function generateSlugSetup(ctx: TemplateContext): string {
  return `eval "$(${ctx.paths.binDir}/gstack-slug 2>/dev/null)" && mkdir -p ~/.gstack/projects/$SLUG`;
}

export function generateBaseBranchDetect(_ctx: TemplateContext): string {
  return `## Step 0: Detect platform and base branch

First, detect the git hosting platform from the remote URL:

\`\`\`bash
git remote get-url origin 2>/dev/null
\`\`\`

- If the URL contains "github.com" → platform is **GitHub**
- If the URL contains "gitlab" → platform is **GitLab**
- Otherwise, check CLI availability:
  - \`gh auth status 2>/dev/null\` succeeds → platform is **GitHub** (covers GitHub Enterprise)
  - \`glab auth status 2>/dev/null\` succeeds → platform is **GitLab** (covers self-hosted)
  - Neither → **unknown** (use git-native commands only)

Determine which branch this PR/MR targets, or the repo's default branch if no
PR/MR exists. Use the result as "the base branch" in all subsequent steps.

**If GitHub:**
1. \`gh pr view --json baseRefName -q .baseRefName\` — if succeeds, use it
2. \`gh repo view --json defaultBranchRef -q .defaultBranchRef.name\` — if succeeds, use it

**If GitLab:**
1. \`glab mr view -F json 2>/dev/null\` and extract the \`target_branch\` field — if succeeds, use it
2. \`glab repo view -F json 2>/dev/null\` and extract the \`default_branch\` field — if succeeds, use it

**Git-native fallback (if unknown platform, or CLI commands fail):**
1. \`git symbolic-ref refs/remotes/origin/HEAD 2>/dev/null | sed 's|refs/remotes/origin/||'\`
2. If that fails: \`git rev-parse --verify origin/main 2>/dev/null\` → use \`main\`
3. If that fails: \`git rev-parse --verify origin/master 2>/dev/null\` → use \`master\`

If all fail, fall back to \`main\`.

Print the detected base branch name. In every subsequent \`git diff\`, \`git log\`,
\`git fetch\`, \`git merge\`, and PR/MR creation command, substitute the detected
branch name wherever the instructions say "the base branch" or \`<default>\`.

---`;
}

export function generateDeployBootstrap(_ctx: TemplateContext): string {
  return `\`\`\`bash
# Check for persisted deploy config in CLAUDE.md
DEPLOY_CONFIG=$(grep -A 20 "## Deploy Configuration" CLAUDE.md 2>/dev/null || echo "NO_CONFIG")
echo "$DEPLOY_CONFIG"

# If config exists, parse it
if [ "$DEPLOY_CONFIG" != "NO_CONFIG" ]; then
  # Cut at the FIRST ": ", not the last. A greedy 's/.*: *//' ate the scheme of
  # any URL: "Production URL: https://x.com" became "//x.com", because the last
  # ":" belongs to "https:".
  PROD_URL=$(echo "$DEPLOY_CONFIG" | grep -i "production.*url" | head -1 | sed 's/^[^:]*: *//')
  PLATFORM=$(echo "$DEPLOY_CONFIG" | grep -i "platform" | head -1 | sed 's/^[^:]*: *//')
  echo "PERSISTED_PLATFORM:$PLATFORM"
  echo "PERSISTED_URL:$PROD_URL"
fi

# Auto-detect platform from config files
[ -f fly.toml ] && echo "PLATFORM:fly"
[ -f render.yaml ] && echo "PLATFORM:render"
([ -f vercel.json ] || [ -d .vercel ]) && echo "PLATFORM:vercel"
[ -f netlify.toml ] && echo "PLATFORM:netlify"
[ -f Procfile ] && echo "PLATFORM:heroku"
([ -f railway.json ] || [ -f railway.toml ]) && echo "PLATFORM:railway"

# Detect deploy workflows
for f in $(find .github/workflows -maxdepth 1 \\( -name '*.yml' -o -name '*.yaml' \\) 2>/dev/null); do
  [ -f "$f" ] && grep -qiE "deploy|release|production|cd" "$f" 2>/dev/null && echo "DEPLOY_WORKFLOW:$f"
  [ -f "$f" ] && grep -qiE "staging" "$f" 2>/dev/null && echo "STAGING_WORKFLOW:$f"
done
\`\`\`

If \`PERSISTED_PLATFORM\` and \`PERSISTED_URL\` were found in CLAUDE.md, use them directly
and skip manual detection. If no persisted config exists, use the auto-detected platform
to guide deploy verification. If nothing is detected, ask the user via AskUserQuestion
in the decision tree below.

If you want to persist deploy settings for future runs, suggest the user run \`/setup-deploy\`.`;
}

export function generateQAMethodology(_ctx: TemplateContext): string {
  return `## Modes

### Diff-aware (automatic when on a feature branch with no URL)

This is the **primary mode** for developers verifying their work. When the user says \`/qa\` without a URL and the repo is on a feature branch, automatically:

1. **Analyze the branch diff** to understand what changed:
   \`\`\`bash
   git diff main...HEAD --name-only
   git log main..HEAD --oneline
   \`\`\`

2. **Identify affected pages/routes** from the changed files:
   - Controller/route files → which URL paths they serve
   - View/template/component files → which pages render them
   - Model/service files → which pages use those models (check controllers that reference them)
   - CSS/style files → which pages include those stylesheets
   - API endpoints → call them with the session's own cookies from one \`aside repl\` script:
     \`\`\`bash
     aside repl '
     const pg = await openTab("<base-url>");
     const r = await fetch("<base-url>/api/...", { method: "GET" });
     console.log("API_STATUS=" + r.status);
     console.log("API_BODY_START"); console.log((await r.text()).slice(0, 4000)); console.log("API_BODY_END");
     await closeTab(pg); console.log("GSTACK_STEP_OK");
     '
     \`\`\`
   - Static pages (markdown, HTML) → navigate to them directly

   **If no obvious pages/routes are identified from the diff:** Do not skip browser testing. The user invoked /qa because they want browser-based verification. Fall back to Quick mode — navigate to the homepage, follow the top 5 navigation targets, check console for errors, and test any interactive elements found. Backend, config, and infrastructure changes affect app behavior — always verify the app still works.

3. **Detect the running app** — probe common local dev ports (no browser needed to find a port):
   \`\`\`bash
   for p in 3000 4000 8080; do curl -sI --max-time 3 "http://localhost:$p" >/dev/null 2>&1 && echo "Found app on :$p"; done
   \`\`\`
   Open the first URL that answers in Aside. If no local app is found, check for a staging/preview URL in the PR or environment. If nothing works, ask the user for the URL.

4. **Test each affected page/route:**
   - Navigate to the page (the Read-a-page script in Phase 3)
   - Take a screenshot
   - Check console for errors (the \`CONSOLE_ERRORS=\` line)
   - If the change was interactive (forms, buttons, flows), test the interaction end-to-end
   - Snapshot before acting and print the diff after (the Drive-a-flow script in Phase 5) to verify the change had the expected effect

5. **Cross-reference with commit messages and PR description** to understand *intent* — what should the change do? Verify it actually does that.

6. **Check TODOS.md** (if it exists) for known bugs or issues related to the changed files. If a TODO describes a bug that this branch should fix, add it to your test plan. If you find a new bug during QA that isn't in TODOS.md, note it in the report.

7. **Report findings** scoped to the branch changes:
   - "Changes tested: N pages/routes affected by this branch"
   - For each: does it work? Screenshot evidence.
   - Any regressions on adjacent pages?

**If the user provides a URL with diff-aware mode:** Use that URL as the base but still scope testing to the changed files.

### Full (default when URL is provided)
Systematic exploration. Visit every reachable page. Document 5-10 well-evidenced issues. Produce health score. Takes 5-15 minutes depending on app size.

### Quick (\`--quick\`)
30-second smoke test. Visit homepage + top 5 navigation targets. Check: page loads? Console errors? Broken links? Produce health score. No detailed issue documentation.

### Regression (\`--regression <baseline>\`)
Run full mode, then load \`baseline.json\` from a previous run. Diff: which issues are fixed? Which are new? What's the score delta? Append regression section to report.

---

## Workflow

### Phase 1: Initialize

1. Confirm Aside is READY (see BROWSER SETUP above). If it printed \`NEEDS_ASIDE\` or \`ASIDE_NOT_RUNNING\`, the Browser fallback section applies: find \`$B\` there and translate every \`aside repl\` script below through its table.
2. Create output directories
3. Copy report template from \`qa/templates/qa-report-template.md\` to output dir
4. Start timer for duration tracking

### Phase 2: Authenticate (if needed)

Aside is the user's real browser, so the session is already signed in wherever the user is signed in. You never authenticate — the user does. In the fallback browser there is no session to inherit: import one with /setup-browser-cookies, or \`$B handoff\` for a human sign-in and \`$B resume\` when they're done.

**If a sign-in wall appears:** stop and tell the user: "Sign in to <origin> in Aside yourself (open it in a new Aside tab), then tell me you're done." Then re-run the step — the browser's cookies now apply. Never type passwords, one-time codes, or payment details, and never read or print cookies, tokens, or localStorage.

**If 2FA/OTP is required:** The user completes it in the Aside window, then tells you to continue.

**If CAPTCHA blocks you:** Tell the user: "Please complete the CAPTCHA in Aside, then tell me to continue."

### Phase 3: Orient

Get a map of the application. One script reads the landing page — console errors from load, the interactive snapshot tree, the visible text, and a screenshot:

\`\`\`bash
aside repl '
const HOOK = \`(() => { window.__gstackErrs = window.__gstackErrs || []; const oe = console.error; console.error = (...a) => { window.__gstackErrs.push(a.map(String).join(" ")); oe.apply(console, a); }; window.addEventListener("error", e => window.__gstackErrs.push("uncaught: " + e.message)); window.addEventListener("unhandledrejection", e => window.__gstackErrs.push("unhandledrejection: " + (e.reason && e.reason.message || e.reason))); })()\`;
const pg = await openTab("about:blank");
await pg._sendToTarget("Page.addScriptToEvaluateOnNewDocument", { source: HOOK });
await pg.goto("<target-url>");
const s = await snapshot(pg, { interactive: true });
console.log(s.tree);
console.log("CONSOLE_ERRORS=" + JSON.stringify(await pg.evaluate(() => window.__gstackErrs)));
console.log("TEXT_START"); console.log((await pg.evaluate(() => document.body.innerText)).slice(0, 20000)); console.log("TEXT_END");
await pg.screenshot({ path: "initial.jpg", type: "jpeg", quality: 60, fullPage: true });
console.log("ASIDE_DIR=" + pwd);
await closeTab(pg);
console.log("GSTACK_STEP_OK");
'
\`\`\`

Then copy the screenshot out of the printed directory and show it: \`cp "<ASIDE_DIR>/initial.jpg" "$REPORT_DIR/screenshots/initial.jpg"\`, then Read it.

Map the navigation structure with the links script (same-origin; HEAD status checks only on a LOCAL target — on a real site the user's cookies would ride every request, so links print as \`LINK ?\` unfetched):

\`\`\`bash
aside repl '
const pg = await openTab("<target-url>");
const links = await pg.evaluate(() => [...new Set([...document.querySelectorAll("a[href]")].map(a => a.href))].filter(h => new URL(h).origin === location.origin && !/logout|signout|delete|remove|cancel|unsubscribe/i.test(h)));
const local = await pg.evaluate(() => /^(localhost|127\\.0\\.0\\.1|0\\.0\\.0\\.0|::1|\\[::1\\])$|\\.(localhost|test)$/.test(location.hostname));
for (const l of links) { if (!local) { console.log("LINK ?", l); continue; } const r = await fetch(l, { method: "HEAD" }).catch(e => ({ status: "ERR " + e.message })); console.log("LINK", r.status, l); }
await closeTab(pg); console.log("GSTACK_STEP_OK");
'
\`\`\`

Every \`LINK\` line with a 4xx/5xx or \`ERR\` status is a broken link for the Links score; \`LINK ?\` lines were not fetched (non-local target) and count as unverified, not broken.

**Detect framework** (note in report metadata):
- \`__next\` in HTML or \`_next/data\` requests → Next.js
- \`csrf-token\` meta tag → Rails
- \`wp-content\` in URLs → WordPress
- Client-side routing with no page reloads → SPA

**For SPAs:** The links script may return few results because navigation is client-side. Use \`snapshot(pg, { interactive: true })\` to find nav elements (buttons, menu items) instead.

### Phase 4: Explore

Visit pages systematically. At each page, run the Read-a-page script from Phase 3 against the page URL with \`page-<name>.jpg\` as the screenshot path, copy it into \`$REPORT_DIR/screenshots/\`, and Read it.

Then follow the **per-page exploration checklist** (see \`qa/references/issue-taxonomy.md\`):

1. **Visual scan** — Look at the screenshot for layout issues (use the annotated-screenshot script when you need ref labels on the page)
2. **Interactive elements** — Click buttons, links, controls. Do they work?
3. **Forms** — Fill and submit. Test empty, invalid, edge cases
4. **Navigation** — Check all paths in and out
5. **States** — Empty state, loading, error, overflow
6. **Console** — Any new JS errors after interactions? Print \`CONSOLE_ERRORS=\` after every action
7. **Responsiveness** — Check the mobile viewport if relevant:
   \`\`\`bash
   aside repl '
   const pg = await openTab("<page-url>");
   await pg._sendToTarget("Emulation.setDeviceMetricsOverride", { width: 375, height: 812, deviceScaleFactor: 2, mobile: true });
   await sleep(300);
   await pg.screenshot({ path: "page-mobile.jpg", type: "jpeg", quality: 60, fullPage: true });
   await pg._sendToTarget("Emulation.clearDeviceMetricsOverride", {});
   console.log("ASIDE_DIR=" + pwd); await closeTab(pg); console.log("GSTACK_STEP_OK");
   '
   \`\`\`

**Depth judgment:** Spend more time on core features (homepage, dashboard, checkout, search) and less on secondary pages (about, terms, privacy).

**Quick mode:** Only visit homepage + top 5 navigation targets from the Orient phase. Skip the per-page checklist — just check: loads? Console errors? Broken links visible?

### Phase 5: Document

Document each issue **immediately when found** — don't batch them.

**Two evidence tiers:**

**Interactive bugs** (broken flows, dead buttons, form failures) — one script per flow, because tabs close when the script ends:
1. Take a screenshot before the action
2. Perform the action
3. Take a screenshot showing the result
4. Print the snapshot diff to show what changed
5. Write repro steps referencing screenshots

\`\`\`bash
aside repl '
const HOOK = \`(() => { window.__gstackErrs = window.__gstackErrs || []; const oe = console.error; console.error = (...a) => { window.__gstackErrs.push(a.map(String).join(" ")); oe.apply(console, a); }; window.addEventListener("error", e => window.__gstackErrs.push("uncaught: " + e.message)); })()\`;
const pg = await openTab("about:blank");
await pg._sendToTarget("Page.addScriptToEvaluateOnNewDocument", { source: HOOK });
await pg.goto("<page-url>");
await snapshot(pg, { interactive: true });                            // baseline for .diff; refs like e12 name the elements
await pg.screenshot({ path: "issue-001-step-1.jpg", type: "jpeg", quality: 60 });
await pg.locator("e12").click();                                       // or pg.fill("#email", "qa@example.com"), pg.getByRole("button", { name: "Save" }).click()
await sleep(500);                                                      // or await pg.waitForSelector("#done"); await pg.waitForURL(/dashboard/)
const s = await snapshot(pg);
console.log("DIFF_START"); console.log(s.diff); console.log("DIFF_END");
console.log("URL=" + pg.url());
console.log("CONSOLE_ERRORS=" + JSON.stringify(await pg.evaluate(() => window.__gstackErrs)));
await pg.screenshot({ path: "issue-001-result.jpg", type: "jpeg", quality: 60 });
console.log("ASIDE_DIR=" + pwd);
await closeTab(pg);
console.log("GSTACK_STEP_OK");
'
\`\`\`

Copy both screenshots out of the printed \`ASIDE_DIR\` into \`$REPORT_DIR/screenshots/\` and Read them.

**Static bugs** (typos, layout issues, missing images):
1. Take a single annotated screenshot showing the problem
2. Describe what's wrong

\`\`\`bash
aside repl '
const pg = await openTab("<page-url>");
const a = await annotatedScreenshot(pg);
await fs.writeFile(path.join(pwd, "issue-002.png"), Buffer.from(a.base64Image, "base64"));
console.log("ASIDE_DIR=" + pwd); await closeTab(pg); console.log("GSTACK_STEP_OK");
'
\`\`\`

**Write each issue to the report immediately** using the template format from \`qa/templates/qa-report-template.md\`.

### Phase 6: Wrap Up

1. **Compute health score** using the rubric below
2. **Write "Top 3 Things to Fix"** — the 3 highest-severity issues
3. **Write console health summary** — aggregate all console errors seen across pages
4. **Update severity counts** in the summary table
5. **Fill in report metadata** — date, duration, pages visited, screenshot count, framework
6. **Save baseline** — write \`baseline.json\` with:
   \`\`\`json
   {
     "date": "YYYY-MM-DD",
     "url": "<target>",
     "healthScore": N,
     "issues": [{ "id": "ISSUE-001", "title": "...", "severity": "...", "category": "..." }],
     "categoryScores": { "console": N, "links": N, ... }
   }
   \`\`\`

**Regression mode:** After writing the report, load the baseline file. Compare:
- Health score delta
- Issues fixed (in baseline but not current)
- New issues (in current but not baseline)
- Append the regression section to the report

---

## Health Score Rubric

Compute each category score (0-100), then take the weighted average.

### Console (weight: 15%)
- 0 errors → 100
- 1-3 errors → 70
- 4-10 errors → 40
- 10+ errors → 10

### Links (weight: 10%)
- 0 broken → 100
- Each broken link → -15 (minimum 0)

### Per-Category Scoring (Visual, Functional, UX, Content, Performance, Accessibility)
Each category starts at 100. Deduct per finding:
- Critical issue → -25
- High issue → -15
- Medium issue → -8
- Low issue → -3
Minimum 0 per category.

### Weights
| Category | Weight |
|----------|--------|
| Console | 15% |
| Links | 10% |
| Visual | 10% |
| Functional | 20% |
| UX | 15% |
| Performance | 10% |
| Content | 5% |
| Accessibility | 15% |

### Final Score
\`score = Σ (category_score × weight)\`

---

## Framework-Specific Guidance

### Next.js
- Check console for hydration errors (\`Hydration failed\`, \`Text content did not match\`)
- Monitor \`_next/data\` requests in network — 404s indicate broken data fetching
- Test client-side navigation (click links, don't just \`goto\`) — catches routing issues
- Check for CLS (Cumulative Layout Shift) on pages with dynamic content

### Rails
- Check for N+1 query warnings in console (if development mode)
- Verify CSRF token presence in forms
- Test Turbo/Stimulus integration — do page transitions work smoothly?
- Check for flash messages appearing and dismissing correctly

### WordPress
- Check for plugin conflicts (JS errors from different plugins)
- Verify admin bar visibility for logged-in users
- Test REST API endpoints (\`/wp-json/\`)
- Check for mixed content warnings (common with WP)

### General SPA (React, Vue, Angular)
- Use \`snapshot(pg, { interactive: true })\` for navigation — the links script misses client-side routes
- Check for stale state (navigate away and back — does data refresh?)
- Test browser back/forward — does the app handle history correctly?
- Check for memory leaks (monitor console after extended use)

---

## Important Rules

1. **Repro is everything.** Every issue needs at least one screenshot. No exceptions.
2. **Verify before documenting.** Retry the issue once to confirm it's reproducible, not a fluke.
3. **Never include credentials.** You never type them — the user signs in inside Aside. Write \`[REDACTED]\` if a repro step has to mention one.
4. **Write incrementally.** Append each issue to the report as you find it. Don't batch.
5. **Never read source code.** Test as a user, not a developer.
6. **Check console after every interaction.** JS errors that don't surface visually are still bugs.
7. **Test like a user.** Use realistic data. Walk through complete workflows end-to-end.
8. **Depth over breadth.** 5-10 well-documented issues with evidence > 20 vague descriptions.
9. **Never delete output files.** Screenshots and reports accumulate — that's intentional.
10. **Use \`annotatedScreenshot(pg)\` when the tree misses a clickable element.** Ref labels drawn on the page find clickable divs the accessibility tree skips; then click by ref or CSS selector.
11. **Show screenshots to the user.** After every script that saves a screenshot, \`cp\` it out of the printed \`ASIDE_DIR\` into \`$REPORT_DIR/screenshots/\` and use the Read tool on the copied file so the user can see it inline. This is critical — without it, screenshots are invisible to the user.
12. **Never refuse to use the browser.** When the user invokes /qa or /qa-only, they are requesting browser-based testing in Aside. Never suggest evals, unit tests, curl, or other alternatives as a substitute. Even if the diff appears to have no UI changes, backend changes affect app behavior — always open the app in the browser and test.
13. **Mutating actions on a non-local target need consent.** Submitting, creating, deleting, purchasing, or changing settings on anything that is not LOCAL follows the "Invocation is consent to LOOK, not to ACT" rule in BROWSER SETUP — one AskUserQuestion per run, before the first such action.`;
}

export function generateCoAuthorTrailer(ctx: TemplateContext): string {
  const { getHostConfig } = require('../../hosts/index');
  const hostConfig = getHostConfig(ctx.host);
  return hostConfig.coAuthorTrailer || 'Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>';
}

export function generateSetupCommand(ctx: TemplateContext): string {
  // Every non-claude host must reinstall ITSELF on upgrade — bare `./setup`
  // defaults to the claude host and would leave the invoking host stale.
  return ctx.host === 'claude' ? './setup' : `./setup --host ${ctx.host}`;
}

export function generateChangelogWorkflow(_ctx: TemplateContext): string {
  return `## Step 13: CHANGELOG (auto-generate)

1. Read \`CHANGELOG.md\` header to know the format.

2. **First, enumerate every commit on the branch:**
   \`\`\`bash
   git log <base>..HEAD --oneline
   \`\`\`
   Copy the full list. Count the commits. You will use this as a checklist.

3. **Read the full diff** to understand what each commit actually changed:
   \`\`\`bash
   git diff <base>...HEAD
   \`\`\`

4. **Group commits by theme** before writing anything. Common themes:
   - New features / capabilities
   - Performance improvements
   - Bug fixes
   - Dead code removal / cleanup
   - Infrastructure / tooling / tests
   - Refactoring

5. **Write the CHANGELOG entry** covering ALL groups:
   - If existing CHANGELOG entries on the branch already cover some commits, replace them with one unified entry for the new version
   - Categorize changes into applicable sections:
     - \`### Added\` — new features
     - \`### Changed\` — changes to existing functionality
     - \`### Fixed\` — bug fixes
     - \`### Removed\` — removed features
   - Write concise, descriptive bullet points
   - Insert after the file header (line 5), dated today
   - Format: \`## [X.Y.Z.W] - YYYY-MM-DD\`
   - **Voice:** Lead with what the user can now **do** that they couldn't before. Use plain language, not implementation details. Never mention TODOS.md, internal tracking, or contributor-facing details.

6. **Cross-check:** Compare your CHANGELOG entry against the commit list from step 2.
   Every commit must map to at least one bullet point. If any commit is unrepresented,
   add it now. If the branch has N commits spanning K themes, the CHANGELOG must
   reflect all K themes.

**Do NOT ask the user to describe changes.** Infer from the diff and commit history.`;
}