1 files changed, 134 insertions, 0 deletions
diff --git a/lua/nvim-lsp-installer/core/receipt.lua b/lua/nvim-lsp-installer/core/receipt.lua
new file mode 100644
index 00000000..5808dfeb
--- /dev/null
+++ b/lua/nvim-lsp-installer/core/receipt.lua
@@ -0,0 +1,134 @@
+local M = {}
+
+---@alias InstallerReceiptSource table
+
+---@class InstallReceiptBuilder
+---@field private secondary_sources InstallerReceiptSource[]
+---@field private epoch_time number
+local InstallReceiptBuilder = {}
+InstallReceiptBuilder.__index = InstallReceiptBuilder
+
+function InstallReceiptBuilder.new()
+    return setmetatable({
+        secondary_sources = {},
+    }, InstallReceiptBuilder)
+end
+
+---@param name string
+function InstallReceiptBuilder:with_name(name)
+    self.name = name
+    return self
+end
+
+---@alias InstallerReceiptSchemaVersion
+---| '"1.0"'
+
+---@param version InstallerReceiptSchemaVersion
+function InstallReceiptBuilder:with_schema_version(version)
+    self.schema_version = version
+    return self
+end
+
+---@param source InstallerReceiptSource
+function InstallReceiptBuilder:with_primary_source(source)
+    self.primary_source = source
+    return self
+end
+
+---@param source InstallerReceiptSource
+function InstallReceiptBuilder:with_secondary_source(source)
+    table.insert(self.secondary_sources, source)
+    return self
+end
+
+---@param seconds integer
+---@param microseconds integer
+local function to_ms(seconds, microseconds)
+    return (seconds * 1000) + math.floor(microseconds / 1000)
+end
+
+---vim.loop.gettimeofday()
+---@param seconds integer
+---@param microseconds integer
+function InstallReceiptBuilder:with_completion_time(seconds, microseconds)
+    self.completion_time = to_ms(seconds, microseconds)
+    return self
+end
+
+---vim.loop.gettimeofday()
+---@param seconds integer
+---@param microseconds integer
+function InstallReceiptBuilder:with_start_time(seconds, microseconds)
+    self.start_time = to_ms(seconds, microseconds)
+    return self
+end
+
+function InstallReceiptBuilder:build()
+    assert(self.name, "name is required")
+    assert(self.schema_version, "schema_version is required")
+    assert(self.start_time, "start_time is required")
+    assert(self.completion_time, "completion_time is required")
+    assert(self.primary_source, "primary_source is required")
+    return {
+        name = self.name,
+        schema_version = self.schema_version,
+        metrics = {
+            start_time = self.start_time,
+            completion_time = self.completion_time,
+        },
+        primary_source = self.primary_source,
+        secondary_sources = self.secondary_sources,
+    }
+end
+
+---@param type string
+local function package_source(type)
+    ---@param package string
+    return function(package)
+        return { type = type, package = package }
+    end
+end
+
+InstallReceiptBuilder.npm = package_source "npm"
+InstallReceiptBuilder.pip3 = package_source "pip3"
+InstallReceiptBuilder.gem = package_source "gem"
+InstallReceiptBuilder.go = package_source "go"
+InstallReceiptBuilder.dotnet = package_source "dotnet"
+
+InstallReceiptBuilder.unmanaged = { type = "unmanaged" }
+
+---@param dependency string
+function InstallReceiptBuilder.system(dependency)
+    return { type = "system", dependency = dependency }
+end
+
+---@param remote_url string
+---@param revision string
+function InstallReceiptBuilder.git_remote(remote_url, revision)
+    return { type = "git", remote = remote_url, revision = revision }
+end
+
+---@param ctx ServerInstallContext
+---@param opts UseGithubReleaseOpts|nil
+function InstallReceiptBuilder.github_release_file(ctx, opts)
+    opts = opts or {}
+    return {
+        type = "github_release_file",
+        repo = ctx.github_repo,
+        file = ctx.github_release_file,
+        release = ctx.requested_server_version,
+        tag_name_pattern = opts.tag_name_pattern,
+    }
+end
+
+function InstallReceiptBuilder.github_tag(ctx)
+    return {
+        type = "github_tag",
+        repo = ctx.github_repo,
+        tag = ctx.requested_server_version,
+    }
+end
+
+M.InstallReceiptBuilder = InstallReceiptBuilder
+
+return M