#!/usr/bin/env bash
set -euo pipefail

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
WORKFLOW="$ROOT_DIR/.github/workflows/opencode-code-review.yml"

pass() {
  printf 'ok - %s\n' "$1"
}

fail() {
  printf 'not ok - %s\n' "$1" >&2
  exit 1
}

count_occurrences() {
  local pattern=$1
  local output
  output="$(rg --fixed-strings --count-matches -- "$pattern" "$WORKFLOW" || true)"
  if [[ -z "$output" ]]; then
    printf '0\n'
    return
  fi
  if [[ "$output" =~ ^[0-9]+$ ]]; then
    printf '%s\n' "$output"
    return
  fi
  awk -F: '{ print $2 }' <<<"$output"
}

tmp_review_reference_count="$(count_occurrences '/tmp/opencode-review')"
if [[ "$tmp_review_reference_count" != "0" ]]; then
  fail "OpenCode review artifacts are not written under /tmp"
fi
pass "OpenCode review artifacts are not written under /tmp"

relative_guidelines_count="$(count_occurrences '--file "$REVIEW_DIR/guidelines.md"')"
if [[ "$relative_guidelines_count" != "2" ]]; then
  fail "OpenCode guidelines are passed as relative workspace files in both workflow paths"
fi
pass "OpenCode guidelines are passed as relative workspace files in both workflow paths"

relative_patch_count="$(count_occurrences '--file "$REVIEW_DIR/review.patch"')"
if [[ "$relative_patch_count" != "2" ]]; then
  fail "OpenCode patches are passed as relative workspace files in both workflow paths"
fi
pass "OpenCode patches are passed as relative workspace files in both workflow paths"

recreate_config_count="$(count_occurrences 'rm -rf .opencode')"
if [[ "$recreate_config_count" != "2" ]]; then
  fail "OpenCode project config is recreated before writing the review agent"
fi
pass "OpenCode project config is recreated before writing the review agent"

explicit_model_env_count="$(count_occurrences 'OPENCODE_MODEL: ${{ env.OPENCODE_MODEL }}')"
if [[ "$explicit_model_env_count" != "2" ]]; then
  fail "OpenCode posting steps explicitly pass OPENCODE_MODEL"
fi
pass "OpenCode posting steps explicitly pass OPENCODE_MODEL"

trusted_fork_script_count="$(count_occurrences 'git show "$BASE_SHA:scripts/opencode-code-review" > .opencode-review/opencode-code-review')"
if [[ "$trusted_fork_script_count" != "1" ]]; then
  fail "Fork review executes the parser script from the trusted base commit"
fi
pass "Fork review executes the parser script from the trusted base commit"

artifact_upload_count="$(count_occurrences 'uses: actions/upload-artifact@v4')"
if [[ "$artifact_upload_count" != "2" ]]; then
  fail "OpenCode review artifacts are uploaded from both workflow paths"
fi
pass "OpenCode review artifacts are uploaded from both workflow paths"