trello

#!/usr/bin/env bash

set -e

if [ -f .env ]; then
    echo "Loading environment variables from $PWD/.env"
    source .env
fi

trello_member="me"
ctx_file="$HOME/.trelloctx"

filter_id_by_name() {
    local data=$1
    local prompt=$2
    local error_msg=$3

    local temp_file=$(mktemp)
    echo -E "$data" | jq -r 'map(.name) | join("\n")' >"$temp_file"
    selected_name=$(cat "$temp_file" | gum filter --limit 1 --header "$prompt" )
    rm "$temp_file"

    local selected=$(echo -E "$data" | jq "map(select(.name == \"$selected_name\"))")
    local selected_id=$(echo -E "$selected" | jq -r '.[].id')

    echo "$selected_id"
}

ensure_env_is_set() {
    if [ -z "$TRELLO_API_KEY" ]; then
        echo "Error: TRELLO_API_KEY is not set.\nPlease set the TRELLO_API_KEY environment variable or set it in .env file and try again."
        exit 1
    fi

    if [ -z "$TRELLO_TOKEN" ]; then
        echo "Error: TRELLO_TOKEN is not set.\nPlease set the TRELLO_TOKEN environment variable or set it in .env file and try again."
        exit 1
    fi
}

make_request() {

    local url=$1
    local response=$(curl -s --request GET --url "$url" --header 'Accept: application/json')
    if [ $? -ne 0 ]; then
        echo "Error: Failed to fetch data from $url"
        return 1
    fi
    echo "$response"
}

trello_ctx() {
    local boards=$(make_request "https://api.trello.com/1/members/$trello_member/boards?key=$TRELLO_API_KEY&token=$TRELLO_TOKEN")
    if [ "$(echo "$boards" | jq length)" -eq 0 ]; then
        echo "Aborting: No boards found. Create a board in Trello and retry."
        exit 1
    fi

    local board_id=$(filter_id_by_name "$boards" "Pick a board:" "No board selected.")
    if [ -z "$board_id" ]; then
        echo "Aborting: No board selected."
        exit 1
    fi

    local board=$(echo -E "$boards" | jq -r "map(select(.id == \"$board_id\"))")
    local name=$(echo -E "$board" | jq -r '.[].name')
    local url=$(echo -E "$board" | jq -r '.[].url')

    local lists=$(make_request "https://api.trello.com/1/boards/$board_id/lists?key=$TRELLO_API_KEY&token=$TRELLO_TOKEN")
    if [ "$(echo "$lists" | jq length)" -eq 0 ]; then
        echo "Aborting: No lists found in the selected board. Create a list in the board and retry."
        exit 1
    fi

    local list_id=$(filter_id_by_name "$lists" "Pick the list that contains ongoing tickets:" "No list selected.")
    if [ -z "$list_id" ]; then
        echo "Aborting: No list selected."
        exit 1
    fi

    local list=$(echo -E "$lists" | jq -r "map(select(.id == \"$list_id\"))")
    local list_name=$(echo -E "$list" | jq -r '.[].name')

    echo "TRELLO_CURRENT_LIST_ID=$list_id" > "$ctx_file"
    echo "Switched to list $name|$list_name"

    if [[ "$1" == "--with-review" || "$1" == "-r" ]]; then
        local review_list_id=$(filter_id_by_name "$lists" "Pick the review list:" "No review list selected.")
        if [ -z "$review_list_id" ]; then
            echo "Aborting: No review list selected."
            exit 1
        fi

        local review_list=$(echo -E "$lists" | jq -r "map(select(.id == \"$review_list_id\"))")
        local review_list_name=$(echo -E "$review_list" | jq -r '.[].name')

        echo "TRELLO_REVIEW_LIST_ID=$review_list_id" >> "$ctx_file"
        echo "Review list set to: $name|$review_list_name" 
    fi

    echo "URL: $url"
}

load_ctx() {
    if [ -f "$ctx_file" ]; then
        source "$ctx_file"
    else
        echo "No context found. Please run `trello ctx` to set a context" >&2
        exit 1
    fi
}

trello_pr() {
    load_ctx

    local tickets=$(make_request "https://api.trello.com/1/members/$trello_member/cards?key=$TRELLO_API_KEY&token=$TRELLO_TOKEN" | jq "map(select(.idList == \"$TRELLO_CURRENT_LIST_ID\"))")
    if [ "$(echo "$tickets" | jq length)" -eq 0 ]; then
        echo "Error: No tickets found in the current list. Create a ticket in the current list and retry."
        exit 1
    fi

    local ticket_id=$(filter_id_by_name "$tickets" "Pick a ticket to link the PR to:" "No ticket selected.")
    if [ -z "$ticket_id" ]; then
        echo "Aborting: No ticket selected."
        exit 1
    fi

    local pr_url=$(gum input --placeholder "PR URL")
    if [ -z "$pr_url" ]; then
        echo "Aborting: No PR URL provided."
        exit 1
    fi

    gum spin --spinner dot --title "Linking the PR to the ticket..." -- curl -s --request POST \
      --url "https://api.trello.com/1/cards/$ticket_id/attachments?key=$TRELLO_API_KEY&token=$TRELLO_TOKEN" \
      --header 'Accept: application/json' \
      -H "Content-Type: application/json" \
      --data "{\"url\": \"$pr_url\"}"

    if [[ -n "$TRELLO_REVIEW_LIST_ID" && ("$1" == "--with-review" || "$1" == "-r") ]]; then
        gum spin --spinner dot --title "Moving the ticket to review list..." -- curl -s --request PUT \
            --url "https://api.trello.com/1/cards/$ticket_id?key=$TRELLO_API_KEY&token=$TRELLO_TOKEN&idList=$TRELLO_REVIEW_LIST_ID" \
            --header 'Accept: application/json' \
            -H "Content-Type: application/json" 
    fi

    local url=$(echo -E "$tickets" | jq -r "map(select(.id == \"$ticket_id\")) | .[].url")
    echo "PR added to Trello card! Go check it out : $url"
}

if declare -f "trello_$1" >/dev/null; then
    ensure_env_is_set

    func="trello_$1"
    shift
    "$func" "$@"
else
    echo "$1 is not a valid subcommand of trello" >&2
    exit 1
fi