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

REPO_ROOT="$(cd "$(dirname "$0")/../.." && pwd)"
RAW_PROJECT="${COMPOSE_PROJECT_NAME:-$(basename "$REPO_ROOT")}"
PROJECT="$(printf '%s' "$RAW_PROJECT" | tr '[:upper:]' '[:lower:]' | tr -cd 'a-z0-9_-')"

[ -n "$PROJECT" ] || {
  printf "compose can't use %s as a project name.\n" "$RAW_PROJECT" >&2
  printf '  Set COMPOSE_PROJECT_NAME to something matching [a-z0-9_-] and run this again.\n' >&2
  exit 1
}
[ "$PROJECT" = "$RAW_PROJECT" ] ||
  printf 'addressing volumes and images as %s, which is what compose normalizes %s to.\n' \
    "$PROJECT" "$RAW_PROJECT" >&2

# podman-compose and docker-compose disagree on built-image names
img() {
  local n
  for n in "${PROJECT}-$1:latest" "localhost/${PROJECT}_$1:latest"; do
    if podman image exists "$n"; then printf '%s' "$n"; return; fi
  done
  printf '%s-%s:latest' "$PROJECT" "$1"
}

failed=()

warm() {
  local name="$1"
  shift
  "$@" || { printf 'warming %s failed.\n' "$name" >&2; failed+=("$name"); }
}

warm appview podman run --rm -v "$REPO_ROOT:/src" -w /src \
  -v "${PROJECT}_go-cache:/go/cache" -v "${PROJECT}_go-mod-cache:/go/mod" \
  -e CGO_ENABLED=1 -e GOCACHE=/go/cache -e GOMODCACHE=/go/mod \
  --entrypoint sh "$(img appview)" \
  -c 'go mod download && go build -o /dev/null ./cmd/appview'

while read -r svc dir vol; do
  warm "$svc" podman run --rm -v "$REPO_ROOT/$svc:/src" -w /src \
    -v "${PROJECT}_${svc}-node-modules:/src/node_modules" \
    -v "${PROJECT}_${vol}:/src/${dir}" \
    --entrypoint sh "$(img "$svc")" \
    -c 'corepack pnpm install --frozen-lockfile --store-dir /src/node_modules/.pnpm-store' </dev/null
done <<'TARGETS'
web    .svelte-kit web-svelte-kit
camo   .wrangler   camo-wrangler
avatar .wrangler   avatar-wrangler
TARGETS

warm bobbin podman run --rm -v "$REPO_ROOT:/src" -w /src \
  -v "${PROJECT}_bobbin-cargo:/cargo" -v "${PROJECT}_bobbin-target:/target" \
  -e CARGO_HOME=/cargo -e CARGO_TARGET_DIR=/target \
  --entrypoint sh "$(img bobbin)" \
  -c 'cargo fetch --locked && cargo build --release --bin bobbin --package bobbin'

[ ${#failed[@]} -eq 0 ] || {
  printf 'these caches are still cold: %s\n' "${failed[*]}" >&2
  printf '  Their containers fetch at start-up, and the tngl network is internal, so\n' >&2
  printf '  "compose up" will loop on a registry or crates.io fetch until this succeeds.\n' >&2
  exit 1
}