Multiple git user setup with conventional commit aliases

.git_helpers.zsh

# Git user configurations
declare -A GH_USERS=(
  [personal]="thatbeautifuldream:Milind Mishra:milind.mishra4@gmail.com"
  [work]="milind-foyer:Milind Mishra:milind@foyer.work"
)

guser() {
    if [[ $# -eq 0 ]]; then
        echo "Usage: guser [personal|work|current]"
        return 1
    fi

    local first_arg="$1"
    local config

    case "$first_arg" in
        personal)
            config=(${(s/:/)GH_USERS[personal]})
            ;;
        work)
            config=(${(s/:/)GH_USERS[work]})
            ;;
        current)
            echo "Current Git Config:"
            echo "Name: $(git config user.name)"
            echo "Email: $(git config user.email)"
            echo "GitHub: $(git config user.github)"
            return 0
            ;;
        *)
            echo "Error: Unknown account '$first_arg'"
            echo "Available: personal, work, current"
            return 1
            ;;
    esac

    local gh_user="${config[1]}"
    local git_name="${config[2]}"
    local git_email="${config[3]}"

    echo "🔄 Switching to $first_arg account..."

    # Switch GitHub auth
    gh auth switch --user "$gh_user" 2>/dev/null || {
        echo "❌ Failed to switch GitHub auth. Run: gh auth login"
        return 1
    }

    # Update Git config
    git config --global user.name "$git_name"
    git config --global user.email "$git_email"
    git config --global user.github "$gh_user"

    echo "✅ Switched to $first_arg"
    echo "Git: $git_name <$git_email> [$gh_user]"
}

# Directory-based credential checking
check-directory-credentials() {
    local current_dir="$PWD"
    local expected=""
    if [[ "$current_dir" == "$HOME/code/self"* ]]; then
        expected="personal"
    elif [[ "$current_dir" == "$HOME/code/work"* ]]; then
        expected="work"
    else
        return 0  # No restriction outside managed directories
    fi
    local current_github=$(git config user.github 2>/dev/null)
    local expected_config=(${(s/:/)GH_USERS[$expected]})
    local expected_github="${expected_config[1]}"
    if [[ "$current_github" != "$expected_github" ]]; then
        echo "❌ Wrong credentials for $expected directory"
        echo "Current: $current_github"
        echo "Expected: $expected_github"
        echo "Run: guser $expected"
        return 1
    fi
    return 0
}

# Auto-switch on directory change
chpwd() {
    if [[ ! -d ".git" ]]; then
        return 0
    fi
    local current_dir="$PWD"
    if [[ "$current_dir" == "$HOME/code/self"* ]]; then
        if ! check-directory-credentials; then
            echo "🔄 Auto-switching to personal credentials..."
            guser personal
        fi
    elif [[ "$current_dir" == "$HOME/code/work"* ]]; then
        if ! check-directory-credentials; then
            echo "🔄 Auto-switching to work credentials..."
            guser work
        fi
    fi
}

# Commit with credentials check (no flag support, just message)
gcap() {
    if [[ $# -eq 0 ]]; then
        echo "❌ Commit message required"
        return 1
    fi

    if ! git rev-parse --git-dir >/dev/null 2>&1; then
        echo "❌ Not in a git repository"
        return 1
    fi

    if ! check-directory-credentials; then
        echo "❌ COMMIT BLOCKED: Fix credentials first"
        return 1
    fi

    git commit -m "$*"
    if [[ $? -eq 0 ]]; then
        echo "✅ Commit successful"
    else
        echo "❌ Commit failed"
        return 1
    fi
}

# Commit type helpers (no flag support, just the message)
gfeat()     { gcap "feat: $*"; }
gnew()      { gcap "feat: $*"; }
gfix()      { gcap "fix: $*"; }
gdocs()     { gcap "docs: $*"; }
gstyle()    { gcap "style: $*"; }
grefactor() { gcap "refactor: $*"; }
gperf()     { gcap "perf: $*"; }
gtest()     { gcap "test: $*"; }
gbuild()    { gcap "build: $*"; }
gci()       { gcap "ci: $*"; }
gchore()    { gcap "chore: $*"; }
gbrk()      { gcap "feat!: $*"; }

gtype() {
    echo ""
    echo "🔒 STRICT MODE: Credentials verified before commits"
    echo ""
    echo "Commands:"
    echo "  guser personal  - Switch to personal account"
    echo "  guser work      - Switch to work account"
    echo "  guser current   - Show current account"
    echo ""
    echo "Commit helpers:"
    echo "  gfeat <msg>         - feat: commit"
    echo "  gfix <msg>          - fix: commit"
    echo "  gdocs <msg>         - docs: commit"
    echo "  gstyle <msg>        - style: commit"
    echo "  grefactor <msg>     - refactor: commit"
    echo "  gperf <msg>         - perf: commit"
    echo "  gtest <msg>         - test: commit"
    echo "  gbuild <msg>        - build: commit"
    echo "  gci <msg>           - ci: commit"
    echo "  gchore <msg>        - chore: commit"
    echo "  gbrk <msg>          - feat!: commit (breaking)"
    echo ""
}