-- config/server.lua
-- Multi-Tenant server configuration using nginx-style config parser
-- Dragons@Work Digital Sovereignty Project

local ConfigParser = require("src.config_parser")

-- Load configuration from furt.conf
local config = ConfigParser.load_config()

-- Add legacy compatibility and runtime enhancements
local server_config = {
    -- HTTP Server settings (from [server] section)
    host = config.server.host,
    port = config.server.port,

    -- Timeouts and limits
    client_timeout = config.server.client_timeout or 10,

    -- CORS Configuration
    cors = {
        allowed_origins = (function()
            local env_origins = os.getenv("CORS_ALLOWED_ORIGINS")
            if env_origins then
                -- Parse comma-separated list from environment
                local origins = {}
                for origin in env_origins:gmatch("([^,]+)") do
                    table.insert(origins, origin:match("^%s*(.-)%s*$"))
                end
                return origins
            else
                -- Default development origins
                return {
                    "http://localhost:1313",      -- Hugo dev server
                    "http://127.0.0.1:1313",     -- Hugo dev server alternative
                    "http://localhost:3000",     -- Common dev port
                    "http://127.0.0.1:3000"      -- Common dev port alternative
                }
            end
        end)()
    },

    -- Logging
    log_level = config.server.log_level or "info",
    log_requests = config.server.log_requests or true,

    -- API Keys (converted from nginx-style to old format for backward compatibility)
    api_keys = config.api_keys,

    -- Default SMTP config (for legacy compatibility)
    mail = config.smtp_default,

    -- Multi-tenant mail configuration function
    get_mail_config_for_api_key = function(api_key)
        return ConfigParser.get_mail_config_for_api_key(config, api_key)
    end,

    -- Raw config access (for advanced usage)
    raw_config = config
}

-- Print configuration summary on load
print("Furt Multi-Tenant Configuration Loaded:")
print("  Server: " .. server_config.host .. ":" .. server_config.port)
print("  Log Level: " .. server_config.log_level)
print("  Default SMTP: " .. (config.smtp_default.host or "not configured"))

local api_key_count = 0
for key_name, key_config in pairs(config.api_keys) do
    api_key_count = api_key_count + 1

    -- Check if this API key has mail permissions
    local has_mail_permission = false
    if key_config.permissions then
        for _, perm in ipairs(key_config.permissions) do
            if perm == "mail:send" or perm == "*" then
                has_mail_permission = true
                break
            end
        end
    end

    local smtp_info = ""
    if key_config.mail_smtp_host then
        smtp_info = " (custom SMTP: " .. key_config.mail_smtp_host .. ")"
    end

    if has_mail_permission then
        print("  API Key: " .. key_config.name .. " -> " .. key_config.mail_to .. smtp_info)
    else
        print("  API Key: " .. key_config.name .. " (no mail)" .. smtp_info)
    end
end
print("  Total API Keys: " .. api_key_count)

return server_config