#!/usr/bin/env bats
#
# Tests for scripts/install-lang.sh — install a language ruleset into a project.
#
# Strategy: scaffold a fresh git project in a temp dir, run install-lang.sh
# against it. Canonical source stays the real one (install-lang.sh resolves
# languages/ and claude-rules/ relative to its own location).

REAL_REPO="$(cd "$(dirname "$BATS_TEST_FILENAME")/../.." && pwd)"
INSTALL_LANG="$REAL_REPO/scripts/install-lang.sh"

setup() {
  PROJECT="$(mktemp -d -t install-lang-bats.XXXXXX)"
  (cd "$PROJECT" && git init -q)
}

teardown() {
  rm -rf "$PROJECT"
}

@test "install-lang elisp: lands the tooling footprint" {
  run bash "$INSTALL_LANG" elisp "$PROJECT"

  [ "$status" -eq 0 ]
  [ -d "$PROJECT/.claude/rules" ]
  [ -d "$PROJECT/githooks" ]
  [ -f "$PROJECT/CLAUDE.md" ]
  # The coverage-summary script ships inside the gitignored .claude footprint.
  [ -f "$PROJECT/.claude/scripts/coverage-summary.el" ]
}

@test "install-lang elisp: seeds the project-owned coverage Makefile fragment" {
  run bash "$INSTALL_LANG" elisp "$PROJECT"

  [ "$status" -eq 0 ]
  [ -f "$PROJECT/coverage-makefile.txt" ]
}

@test "install-lang elisp: does not overwrite an existing fragment without FORCE" {
  echo "MY OWN VERSION" > "$PROJECT/coverage-makefile.txt"
  run bash "$INSTALL_LANG" elisp "$PROJECT"

  [ "$status" -eq 0 ]
  grep -qxF "MY OWN VERSION" "$PROJECT/coverage-makefile.txt"
}

@test "install-lang elisp: gitignores the full Claude tooling footprint" {
  run bash "$INSTALL_LANG" elisp "$PROJECT"

  [ "$status" -eq 0 ]
  # The whole .claude/, CLAUDE.md, and githooks/ stay out of the project's
  # git history — Claude tooling is delivered by install/sync, never committed.
  grep -qxF ".claude/" "$PROJECT/.gitignore"
  grep -qxF "CLAUDE.md" "$PROJECT/.gitignore"
  grep -qxF "githooks/" "$PROJECT/.gitignore"
  # Elisp byte-compile artifacts.
  grep -qxF "*.elc" "$PROJECT/.gitignore"
  grep -qxF "*.eln" "$PROJECT/.gitignore"
}

@test "install-lang python: lands the coverage script in the gitignored footprint" {
  run bash "$INSTALL_LANG" python "$PROJECT"

  [ "$status" -eq 0 ]
  [ -f "$PROJECT/.claude/scripts/coverage-summary.py" ]
  [ -f "$PROJECT/coverage-makefile.txt" ]
  # The .claude footprint must be gitignored so the script isn't committed.
  grep -qxF ".claude/" "$PROJECT/.gitignore"
  grep -qxF "coverage.json" "$PROJECT/.gitignore"
}

@test "install-lang typescript: lands the coverage script in the gitignored footprint" {
  run bash "$INSTALL_LANG" typescript "$PROJECT"

  [ "$status" -eq 0 ]
  [ -f "$PROJECT/.claude/scripts/coverage-summary.js" ]
  [ -f "$PROJECT/coverage-makefile.txt" ]
  grep -qxF ".claude/" "$PROJECT/.gitignore"
  grep -qxF "coverage/" "$PROJECT/.gitignore"
}

@test "install-lang go: full bundle lands (rules, hook, settings, githook, CLAUDE.md, coverage)" {
  run bash "$INSTALL_LANG" go "$PROJECT"

  [ "$status" -eq 0 ]
  # Coverage slice
  [ -f "$PROJECT/.claude/scripts/coverage-summary.go" ]
  [ -f "$PROJECT/coverage-makefile.txt" ]
  # Language + testing rules — these are the bundle's sync fingerprint
  [ -f "$PROJECT/.claude/rules/go.md" ]
  [ -f "$PROJECT/.claude/rules/go-testing.md" ]
  # PostToolUse validate hook, executable and wired into settings
  [ -x "$PROJECT/.claude/hooks/validate-go.sh" ]
  grep -qF "validate-go.sh" "$PROJECT/.claude/settings.json"
  # Pre-commit githook
  [ -x "$PROJECT/githooks/pre-commit" ]
  # CLAUDE.md seeded
  [ -f "$PROJECT/CLAUDE.md" ]
  # Gitignore footprint
  grep -qxF ".claude/" "$PROJECT/.gitignore"
  grep -qxF "cover.out" "$PROJECT/.gitignore"
}